EVAL-AD5791SDZ User Guide UG-1152 One Technology Way * P.O. Box 9106 * Norwood, MA 02062-9106, U.S.A. * Tel: 781.329.4700 * Fax: 781.461.3113 * www.analog.com Evaluation Board for the AD5791 1 ppm 20-Bit, 1 LSB INL, Voltage Output DAC with Single and Dual Supply FEATURES The evaluation board also integrates a power solution utilizing the ADP5070 switching regulator and linear regulators (ADP7118 and ADP7182) to generate a bipolar supply of up to -15 V and +15 V from a +3.3 V single supply. Alternatively, the DAC can be supplied with linear power supplies via the on-board connectors (J11 and J13). Full-featured evaluation board for the AD5791 with the ADP5070 power solution Power Solution generated from single 3.3 V supply. PC control in conjunction with Analog Devices, Inc., EVALSDP-CB1Z SDP PC software for control A daughter board connected to the top right of the EVALAD5791SDZ includes a voltage reference to externally apply to the DAC. EVALUATION KIT CONTENTS EVAL-AD5791SDZ evaluation board EV-ADR445-REFZ reference board AD5791 evaluation software The EVAL-SDP-CB1Z SDP board allows the EVAL-AD5791SDZ evaluation board to be controlled through the USB port of a Windows(R)-based PC featuring Windows XP or later when using the AD5791 evaluation software. GENERAL DESCRIPTION This user guide supports the EVAL-AD5791SDZ evaluation board, Revision B. UG-185 supports previous revisions of the evaluation board. The AD5791 is a high precision, 20-bit DAC, designed to meet the requirements of precision control applications. The output range of the AD5791 is configured by two reference voltage inputs. The device is specified to operate with a dual power supply of up to 33 V. The EVAL-AD5791SDZ is a full-featured evaluation board, designed for users to easily evaluate all features of the AD5791 voltage output, 20-bit digital-to-analog converter (DAC). The AD5791 pins are accessible at on-board connectors for external connection. The evaluation board can be controlled by two means: via the on-board connector (J12) or via the system demonstration platform (SDP) connector (J14). Complete specifications for the AD5791 are available in the AD5791 data sheet available from Analog Devices, which should be consulted in conjunction with this user guide when using the evaluation board. 16010-101 EVALUATION BOARD PHOTOGRAPH Figure 1. PLEASE SEE THE LAST PAGE FOR AN IMPORTANT WARNING AND LEGAL TERMS AND CONDITIONS. Rev. 0 | Page 1 of 24 UG-1152 EVAL-AD5791SDZ User Guide TABLE OF CONTENTS Features .............................................................................................. 1 Software Installation .....................................................................8 General Description ......................................................................... 1 Software Operation .......................................................................8 Evaluation Board Photograph ......................................................... 1 Main Window ................................................................................9 Revision History ............................................................................... 2 Evaluation Board Schematics and Artwork ................................ 11 Evaluation Board Hardware ............................................................ 3 AD5791 Carrier Board .............................................................. 11 Power Supplies and Default Link Options ................................ 3 ADR445 Reference Voltage Daughter Board ......................... 18 Power Solution (ADP5070)--Single Supply Option ............... 4 LTZ1000 Reference Voltage Daughter Board ......................... 20 Bench Power Supply--Dual Supply Option ............................. 4 Ordering Information .................................................................... 22 Voltage Reference Daughter Board ............................................ 4 Bill of Materials ........................................................................... 22 On-Board Connectors ................................................................. 7 Evaluation Board Software .............................................................. 8 REVISION HISTORY 1/2018--Revision 0: Initial Version Rev. 0 | Page 2 of 24 EVAL-AD5791SDZ User Guide UG-1152 EVALUATION BOARD HARDWARE The analog and digital planes are connected at one location close to the DAC. To avoid ground loop problems, do not connect AGND and DGND elsewhere in the system. POWER SUPPLIES AND DEFAULT LINK OPTIONS The EVAL-AD5791SDZ evaluation board can be powered using the on-board ADP5070 from a single voltage. The voltage sources available are an external single supply via the J11 connector and a supply sourced from the SDP controller board. Table 1. Quick Start Jumper Configuration for ADP5070 and Bench Supply Link No. LK2 LK5 LK6 LK7 LK8 LK9 LK10 Alternatively, the J13 connector can provide power to the board, instead of the ADP5070, and it is intended for use with wellregulated bench supplies. See Figure 2 for a functional block diagram. With any of the possible options, set the link options on the evaluation board for the required operating setup first, before supplying the evaluation board. Each supply is decoupled to the relevant ground plane with 10 F and 0.1 F capacitors. Each device supply pin is again decoupled with a 10 F and 0.1 F capacitor pair to the relevant ground plane. ADP5070 with LDOs Inserted Removed Removed Removed B B B ADP5070 Inserted Inserted Inserted Inserted A B B LK5 Voltage Reference ADP7118 LK6 Daughter Board J12 Pin10 ADP7118 J11 Vcc DGND B LK10 LK1 A A A LK2 LK8 B LK7 ADP5070 IOVCC VCC ADP7182 VDD B LK9 A J13 VDD AGND VSS Figure 2. Powering the EVAL-AD5791SDZ Evaluation Board Rev. 0 | Page 3 of 24 VSS VREF AD5791 Bench Supply Removed Inserted N/A N/A A A A UG-1152 EVAL-AD5791SDZ User Guide The EVAL-AD5791SDZ board is populated with an ADP5070 switching regulator. This regulator is preceded by voltage regulators (ADP7118 and ADP7182) that can be bypassed if required. The supplies generated from the ADP5070 alone or with the addition of the voltage regulators are -15 V and +15 V from a +3.3 V single supply. Link LK6 and Link LK7 must be inserted when the voltage regulators are bypassed. The circuit was designed using the Analog Devices ADIsimPower toolset, which selects the components, generates the schematic and bill of materials, and displays the performance specifications. Visit the ADP5070 product page to download the design tools. The ADP5070 requires a minimum voltage supply of 3.3 V for correct operation. Following the jumper configuration in Table 1 for the ADP5070 alone or the ADP5070 with low dropout regulators (LDOs) options, the evaluation board is supplied via the on-board J11 connector with an external 3.3 V single supply. VOLTAGE REFERENCE DAUGHTER BOARD The daughter board inserted into Connector J1, Connector J4, and Connector J9 (available at the top right corner of the EVALAD5791SDZ evaluation board) includes a voltage reference. The voltage supplied by the voltage reference is gained up and inverted to provide the positive and negative reference voltages required by the AD5791, which are routed to the EVALAD5791SDZ board via the J4 connector. ADR445 Reference Board The EVAL-AD5791SDZ evaluation kit provides the EVADR445-REFZ reference board to complete the hardware required to evaluate the AD5791. The ADR445 is a 5 V low noise reference with 3 ppm/C maximum temperature drift and 2.25 V p-p noise specifications across the operating temperature range. Figure 3 shows the typical integral nonlinearity (INL) performance. 1.0 0.5 The J11 connector can be supplied with a range of 3.3 V to 5.5 V when Link LK5 is inserted, or with a range of 3.3 V to 18 V when Link LK5 is removed. INL ERROR (LSB) 0 Link LK1 must be inserted to Position A at all times. Refer to Table 3 for full link options. BENCH POWER SUPPLY--DUAL SUPPLY OPTION The evaluation board can be powered using a bench supply to allow all output voltage ranges of the AD5791. A headroom and footroom of at least 2.5 V is required on the dual supply. It is important that the voltage across the negative analog supply (VSS) and positive analog supply (VDD)does not exceed the absolute maximum rating of 34 V. Otherwise, device reliability can be affected. Following the jumper configuration in Table 1 for the bench supply configuration, supply the evaluation board with a dual supply of the VSS = -15 V and the VDD = +15 V via the J13 connector. The AD5791 also requires a 3.3 V single supply to be applied to the VCC and IOVCC pins that can be sourced via the J11 connector or the on-board J12 connector. Select the position of Link LK8 depending on the preferred source to supply the VCC pin and the IOVCC pin. Select the position of Link LK1 to Position A at all times. Refer to Table 3 for full link options. ADR445 REFERENCE EXTERNAL SUPPLY ON J13 VDD = +15V VSS = -15V 3458A DMM, NPLC = 10 STEP SIZE = 1024 TA = 25C -0.5 -1.0 -1.5 -2.0 -2.5 0 200000 400000 600000 800000 1000000 DAC CODE 16010-103 POWER SOLUTION (ADP5070)--SINGLE-SUPPLY OPTION Figure 3. AD5791 with ADR445 INL Performance Link JP1 selects the source of the reference voltage between the ADR445 and an external 5 V reference voltage applied at connector VR_EXT. Refer to Table 2 for the link details. Table 2. JP1 Link Reference Voltage Selection JP1 Link Position A B Rev. 0 | Page 4 of 24 Reference Voltage Selection ADR445 5 V external reference voltage applied at VR_EXT connector EVAL-AD5791SDZ User Guide UG-1152 LTZ1000 Reference Board 0.5 The EV-LTZ1000-REFZ reference board, including the Linear Technology LTZ1000 voltage reference, is also available to evaluate the AD5791. 0.4 A minimum external unipolar supply of 3.3 V is required to supply the EVAL-AD5791SDZ and EV-LTZ1000-REFZ board combination. Alternatively, external dual supplies can be used to supply the motherboard and daughterboard. Rev. 0 | Page 5 of 24 0.2 0.1 0 -0.1 -0.2 LTZ1000 REFERENCE EXTERNAL SUPPLY ON J13 V = +15V V = -15V 3458A DMM, NPLC = 10 STEP SIZE = 1024 T = 25C -0.3 -0.4 -0.5 0 200000 400000 600000 800000 1000000 DAC CODE Figure 4. AD5791 with LTZ1000 INL Performance 16010-104 INL ERROR (LSB) The LTZ1000 reference board components maintain the 1 ppm accuracy of the AD5791. The LTZ1000 is a 7.2 V ultraprecision reference specified with 0.05 ppm/C temperature drift and ultralow 1.2 V p-p noise. The voltage reference is used in conjunction with low drift amplifiers (ADA4077-2) and a low drift, thermally matched resistor for the scaling and gain circuits. To reduce thermal errors due to air currents flowing over the reference board, it is recommended to place a cover over the reference board. Figure 4 shows the typical INL performance. 0.3 UG-1152 EVAL-AD5791SDZ User Guide Table 3. Link Options Link No. LK1 LK2 LK3 Description This link selects the source of the digital power supply from Connector J11. Position A must be selected at all times. Position A selects the source from the SDP board. Position B selects the source from Connector J12. This link selects whether or not the power solution on the board is used to supply the AD5791. When this link is inserted, the ADP5070 dc-to-dc switch is used to supply the AD5791 in single supply. When this link is removed, the ADP5070 dc-to-dc switch is bypassed. This link selects the state of the LDAC pin. When this link is inserted, LDAC is at logic low. When this link is removed, LDAC is at logic high. LK4 This link selects the state of the RESET pin. When this link is inserted, RESET is at logic low. When this link is removed, RESET is at logic high. LK5 This link selects the voltage source for the digital supply VCC pin. When this link is inserted, the digital supply is sourced from an external 3.3 V single supply (Connector J11) with Link LK1 on position A. Note that the J11 connector can be supplied with a range of 3.3 V to 5.5 V when Link LK5 is inserted. When this link is removed, the digital supply is sourced from the adjusted voltage generated by the ADP5070 and regulated by the ADP7118. Note that the J11 connector can be supplied with a range of 3.3 V to 18 V when Link LK5 is removed. This link selects whether the ADP7118 regulator is included in the VDD source circuit. When this link is inserted, the ADP7118 regulator is bypassed. When this link is removed, the ADP7118 regulator adjusts the positive analog supply generated by the ADP5070 power solution. This link selects whether the ADP7182 regulator is included in the VSS source circuit. When this link is inserted, the ADP7182 regulator is bypassed. When this link is removed, the ADP7182 regulator adjusts the negative analog supply generated by the ADP5070 power solution. This link selects the voltage source for the IOVCC pin. Position A selects an externally applied voltage at Pin 10 of Connector J12. Position B connects IOVCC to VCC. This link selects the voltage source for the negative analog supply VSS. Position A selects the source from the voltage externally applied at VSS of Connector J13. Position B selects the source from the negative voltage generated by the ADP5070 and adjusted by an ADP7182 regulator, depending on the position of Link LK7. This link selects the voltage source for the positive analog supply VDD. Position A selects the source from the voltage externally applied at VDD of Connector J13. Position B selects the source from the positive voltage generated by the ADP5070 and adjusted by an ADP7118 regulator, depending on the position of Link LK6. This link selects the state of the CLR pin. When this link is inserted, CLR is at logic low. When this link is removed, CLR is at logic high. LK6 LK7 LK8 LK9 LK10 LK11 Rev. 0 | Page 6 of 24 EVAL-AD5791SDZ User Guide UG-1152 Connector J12 Pin Descriptions Table 4 shows the connectors on the EVAL-AD5791SDZ. Figure 5 and Table 5 show the Connector J12 pins. Table 4. On-Board Connectors Connector J1 to J9 J11 J12 J13 J14 VO VO_BUF VR_EXT Function Voltage reference daughter board connectors Digital power supply connector Digital interface pin header connector Analog power supply connector SDP board connector DAC output connector Buffered DAC output connector 5 V voltage reference input connector 2 4 6 8 10 1 3 5 7 9 16010-002 ON-BOARD CONNECTORS Figure 5. Connector J12 Pin Configuration Table 5. Connector J12 Pin Descriptions Pin No. 1 2 3 4 5 6 7 8 9 10 Rev. 0 | Page 7 of 24 Description CLR LDAC RESET SCLK SDIN SDO SYNC DGND DGND IOVCC UG-1152 EVAL-AD5791SDZ User Guide EVALUATION BOARD SOFTWARE SOFTWARE INSTALLATION SOFTWARE OPERATION The AD5791 evaluation kit includes self installing software on a CD. The software is compatible with Windows XP or later Windows based PCs. If the setup file does not run automatically, you can run setup.exe from the CD. To launch the software, complete the following steps: 1. From the Start menu, select Analog Devices - AD5791 > AD5791 Evaluation Software. The main window of the software displays (see Figure 7). Install the evaluation software before connecting the evaluation board and SDP board to the USB port of the PC to ensure that the evaluation system is correctly recognized when connected to the PC. 2. If the evaluation system is not connected to the USB port when the software is launched, a connectivity error is displayed (see Figure 6). Connect the evaluation board to the USB port of the PC, wait a few seconds, and click Rescan. Follow the instructions. 16010-003 2. After installation from the CD is complete, power up the AD5791 evaluation board as described in the Power Supplies and Default Link Options section. Connect the SDP board to the AD5791 evaluation board and then to the USB port of your PC using the supplied cable. When the evaluation system is detected, proceed through any dialog boxes that appear. This completes the installation. Figure 6. Connectivity Error Alert 16010-004 1. Figure 7. Main Window Rev. 0 | Page 8 of 24 EVAL-AD5791SDZ User Guide UG-1152 MAIN WINDOW To begin the measurement, click the START button. The measurement can be halted at any time by clicking the STOP button. When the measurement is completed, a dialog box appears to allow the data to be saved as a spreadsheet file with three columns of data. The first column is DAC code, the second column is DAC voltage in volts, and the third column is INL error in least significant bits (LSBs), as shown in Figure 9. A graph of both DAC output voltage vs. DAC code and INL error vs. DAC code is displayed on screen. In the measurement example shown in Figure 10, measurements are taken in 1024 code steps beginning at Code 0 and finishing at Code 1,047,552, in total 1023 measurements. With the number of power line cycles (NPLC) setting on the multimeter set to 1, the measurement takes ~75 sec to complete. To complete an all codes measurement requiring 1,048,576 measurement points takes ~21 hours to complete. The main window is divided into three tabs: Configure, Program Voltage, and Measure DAC Output. Configure The Configure tab allows access to the control register, clearcode register, software control register, and DAC register, and also allows control of the RESET, CLR, and LDAC pins, as shown in Figure 7. Program Voltage 16010-005 The Program Voltage tab programs the DAC register with a value calculated from the three entered values: the positive voltage reference (VREFP), the negative voltage reference (VREFN), and the desired output voltage input to the Program Voltage field, as shown in Figure 8. Figure 8. Program Voltage Window Measure DAC Output The multimeter is controlled over a general-purpose interface bus (GPIB). Once connected to the PC, the multimeter should first be configured via its front panel before taking a measurement. Figure 10 shows the measurement options. The software runs through a sequence of steps, programming the DAC register and measuring the DAC output voltage. The sequence begins with the software programming the DAC with the Start Code value, incrementing the programmed value at each step by the Code Step value, and finishing when the programmed value reaches the Stop Code value. A delay between measurements can be inserted if required. The GPIB address of the multimeter must be specified. 16010-006 The Measure DAC Output section allows the PC to control an Agilent 3458A multimeter to measure and log the DAC output voltage. Figure 9. Saved Data Format If an Agilent 3458A multimeter is not connected to the PC, the software steps through the codes without taking any measurements. Rev. 0 | Page 9 of 24 EVAL-AD5791SDZ User Guide 16010-007 UG-1152 Figure 10. Measure DAC Output Window Rev. 0 | Page 10 of 24 C1 +3.3V SDP_BLOCK VOUT1 VOUT2 VCC 2 GND_EARTH 1 0 R0 LK2 TP10 1 P N +3.3V CLR_N SYNC_N SDO SDIN SCLK RESET_N 1 2 VOUT2 LK7 LK6 LK5 AD5791_POWERSECTION 2 2 VOUT1 VOUT2_FILTER VOUT1_FILTER +5V AGND 1 TP9 LK1 VREFP VREFN 1 2 3 VCC J4 J12 AGND 1 CLR_N LDAC_N RESET_N SCLK SDIN SDO SYNC_N 10 AGND IN AVCC AVSS_LDO VSS_LDO VDD_LDO IOVCC LK8 M20-9990345 REFN REFP SYNC_N SDO SDIN SCLK RESET_N LDAC_N CLR_N IOVCC MILL-MAX HEADER (M) CONNECTOR.ALIGN WITH VREF CONNECTOR ON REFERENCE BOARDS AGND AVDD_LDO 1 1 1 +3.3V M20-9990345 LDAC_N 600OHM L4 DNI 2 0.1UF CONNECT AGND TO DNG_EARTH WITH A STAR CONNECTION AGND 600OHM 1 2 2 1 2 1 A 1 LK11 2 LK3 2 L3 VOUT1 1 B 3 LK4 10UF C2 VOUT2 B 1 2 VOUT VOUT_BUF VSS VDD AD5791_BLOCK VCC_DAC C3 C5 J11 IOVCC_DAC P P N N DGND VDD_DAC 1 2 3 4 5 6 7 8 9 10 A 3 2 1 B 3 2 VSS 1 A 3 VSS_DAC AGND VDD LK10 M20-9990345 VDD_LDO LK9 M20-9990345 VSS_LDO 10UF C4 10UF C6 A 0.1UF 0.1UF B Rev. 0 | Page 11 of 24 2 Figure 11. Schematic of the Main AD5791 Circuitry 1 VCC AGND 2 2 VO 1 2 3 J1 1 2 3 VDD TO REFERENCE BOARDS AGND TO REFERENCE BOARDS VSS TO REFERENCE BOARDS 1 1 MILL-MAX SOCKET (F) AGND 5 4 3 2 VO_BUF 1 AGND 5 4 3 2 1 600OHM L2 600OHM L1 J8 MILL-MAX SOCKET (F) 1 2 3 J7 1 2 3 DNI DNI MILL-MAX SOCKET (F) 1 2 3 J6 J5 1 2 3 1 2 3 J3 NC PINS ARE RESERVED FOR FUTURE USE MILL-MAX SOCKET (F) 1 2 3 MILL-MAX SOCKET (F) J2 1 2 3 DNI DNI NC PINS ARE RESERVED FOR FUTURE USE DNI DNI J9 MILL-MAX SOCKET (F) NC PINS ARE RESERVED FOR FUTURE USE 1727023 VDD AGND VSS J13 EVAL-AD5791SDZ User Guide UG-1152 EVALUATION BOARD SCHEMATICS AND ARTWORK AD5791 CARRIER BOARD UG-1152 EVAL-AD5791SDZ User Guide +5V C35 10UF R22 4.7 DFLS130-7 D2 C A 15UH L7 OUT 4.7UF C36 R21 1.5UH 18.7K VOUT1 0V 0V 4.7UF L6 C37 R20 30.1K 0V R23 63.4K R24 AGND 16 17 15 AGND VREG 8 SS 7 EN1 14 PVINSYS PVIN2 PVIN1 R42 49.9K DNI AGND 2 SYNC/FREQ 4 SLEW 3 SEQ ADP5070ACPZ-R7 PAD R40 0 EN2 13 AGND 19 PGND PAD R37 0 1UF C34 R39 0 INBK SW1 FB1 COMP1 COMP2 VREF VREG 9 3.57K C8 U5 FB2 SW2 27PF R25 1 AGND 20 5 6 10 12 22K C38 0.022UF AGND C9 R26 22PF 11 18 30.1K C39 0.082UF AGND R27 C40 2.8K 1UF AGND DNI R41 0 DNI AGND 0V R28 54.9K D3 L8 A OUT 2.2UH 10 2.2UF C41 2.2UF 0V R29 C42 0V VOUT2 C BAT54LPS AGND 6.8UH DNI R38 0 L9 R1 0 0V Figure 12. Schematic of the ADP5070 DC-to-DC Switch Circuitry Rev. 0 | Page 12 of 24 EVAL-AD5791SDZ User Guide UG-1152 U6 ADP7118ARDZ-3.3 7 1 VIN VOUT 8 2 VIN IN 1 OUT VOUT C44 5 EN 3 SENSE/ADJ 6 2.2UF C43 AVCC SS GND 4 PAD PAD AGND AGND AGND VOUT1_FILTER 2.2UF R30 +5V IN U7 ADP7118ARDZ 7 VIN 8 IN 10 VOUT VOUT OUT C46 5 EN 3 SENSE/ADJ 6 1UF C45 VIN AVDD_LDO 1 2 SS GND 4 0.01UF C7 DNI AGND 2.2UF R31 VOUT1 PAD PAD AGND R32 105K AGND AGND R33 10K AGND 10 6 AGND AGND AVSS_LDO 1 OUT C48 4 EN VOUT VIN EPAD GND NC 5 1UF C47 IN PAD VOUT2 IN R35 105K 2.2UF R34 U8 ADP7182ACPZN 2 ADJ 3 VOUT2_FILTER AGND R36 10K AGND Figure 13. Schematic of the LDOs (ADP7118 and ADP7182) from the Power Solution Circuitry Rev. 0 | Page 13 of 24 EVAL-AD5791SDZ User Guide IN VCC_DAC C13 0.1UF N C14 10UF P UG-1152 REFP IN AGND IN IOVCC_DAC 3 CLR_N_TP IN LDAC_N_TP IN SDIN_TP IN SCLK_TP IN SYNC_N_TP IN 0.1UF 10UF C15 N U2 1 2 2 N1 3 R19 OUT SDO 8 N2 DNI U3 7 VOUT_BUF V+ OUT 6 OUT V- 4 AD8675ARZ 0 VSS_DAC IN AD5791BRUZ_PRELIM AGND VSS_DAC IN P IN DNI C20 RESET_N_TP C16 C17 0.1UF 220PF C18 10UF N P AD8676BRMZ 0 1 OUT SDO_TP C23 SYNC_N 0 R18 VDD_DAC IN 10PF SCLK 0 R17 AD8676BRMZ INV VREFPS VREFPF RESET_N 2 VOUT CLR_N 11 LDAC_N SDO SDIN 20 SCLK RFB SYNC_N VREFNF VREFNS 0.1UF SDIN 0 R16 1 3 4 6 7 8 12 13 14 16 17 U1 C22 0 R15 AGND 7 U2 5 VDD 9 VCC 10 IOVCC LDAC_N DNI C19 R12 10K R11 10K R10 5 C21 IN 6 0 R14 VOUT OUT AGND 19 AGND 15 DGND 18 VSS IN R13 CLR_N VDD_DAC N IN RESET_N IN 10UF IN AGND 220PF IN 10K R9 IN 10K P IOVCC_DAC AGND AGND REFN IN U3 U2 4 AD8676BRMZ 16010-013 0.1UF C29 0.1UF C28 0.1UF 10UF C33 C31 0.1U F C32 8 V+ V- N N C30 10UF AGND U2 0.1UF 10UF C27 N P C25 0.1UF C26 N P C24 10UF P U3 P U2 VDD_DAC VSS_DAC Figure 14. Schematic of the AD5791 Circuitry Rev. 0 | Page 14 of 24 EVAL-AD5791SDZ User Guide UG-1152 J14 59 58 57 56 TP_12 OUT TP_11 OUT TP_10 OUT 55 54 53 52 51 50 49 48 47 46 45 44 RESET_N IN 43 LDAC_N IN 42 41 40 39 38 37 36 35 34 33 32 31 30 29 28 27 26 25 24 23 22 21 20 19 18 17 16 15 14 13 12 AGND 11 10 9 8 7 6 5 4 3 2 1 RESET_IN_N UART_RX GND BMODE1 UART_TX GND RESET_OUT_N SLEEP_N EEPROM_A0 WAKE_N NC NC NC NC NC GND NC GND NC NC NC CLKOUT TMR_C TMR_D TMR_A TMR_B GPIO6 GPIO7 GND GND GPIO4 GPIO5 GPIO2 GPIO3 GPIO0 GPIO1 SCL_1 SCL_0 SDA_1 SDA_0 GND SPI_SEL1/SPI_SS_N SPI_SEL_C_N SPI_SEL_B_N GND SERIAL_INT GND SPI_CLK SPI_MISO SPI_MOSI SPI_SEL_A GND SPI_D3 SPORT_TSCLK SPI_D2 SPORT_DT0 SPORT_DT1 SPORT_TFS SPORT_DR1 SPORT_RFS SPORT_TDV1 SPORT_DR0 SPORT_TDV0 SPORT_RSCLK GND GND PAR_FS1 PAR_CLK PAR_FS3 PAR_FS2 PAR_A1 PAR_A0 PAR_A3 PAR_A2 GND GND PAR_CS_N PAR_INT PAR_RD_N PAR_WR_N PAR_D1 PAR_D0 PAR_D3 PAR_D2 PAR_D5 PAR_D4 GND PAR_D7 GND PAR_D6 PAR_D9 PAR_D8 PAR_D11 PAR_D10 PAR_D13 PAR_D12 PAR_D14 GND GND PAR_D15 PAR_D17 PAR_D16 PAR_D19 PAR_D18 PAR_D21 PAR_D20 PAR_D23 PAR_D22 GND USB_VBUS GND VIO(+3.3V) GND GND GND GND NC NC VIN NC 61 IN 62 +3.3V 63 64 65 U4 8 66 67 68 69 OUT TP_1 1 OUT TP_2 2 OUT TP_3 3 6 70 OUT TP_4 71 72 7 A0 VCC A1 A2 SDA WP VSS 4 73 5 SCL 24LC64-I/SN 74 75 76 AGND 77 78 IN 79 CLR_N 80 81 82 83 84 85 86 87 88 89 90 91 92 IN SCLK IN SDIN IN SYNC_N IN SDO 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 AGND 111 112 113 114 115 116 IN +3.3V 117 118 119 120 FX8-120S-SV(21) Figure 15. Schematic of the SDP Board Connector Rev. 0 | Page 15 of 24 16010-014 60 EVAL-AD5791SDZ User Guide 16010-015 UG-1152 16010-016 Figure 16. Component Placement Schematic Figure 17. Top Printed Circuit Board (PCB) Layer Schematic Rev. 0 | Page 16 of 24 UG-1152 16010-017 EVAL-AD5791SDZ User Guide Figure 18. Bottom PCB Layer Schematic Rev. 0 | Page 17 of 24 2 3 AGND J3 VSS C1 C3 VDD 0.1F 0.1F 1 2 3 DNI MILL-MAX HEADER (M) CONNECTOR J2 C2 C4 4 V- V+ 8 ADA4077-2BRZ U2 J1 ADR445BRZ 1 2 3 1 2 3 J5 DNI MILL-MAX SOCKET (F) DNI J7 MILL-MAX HEADER (M) CONNECTOR MILL-MAX SOCKET (M) 1 2 3 0.1F AGND C5 350-10-103-00-006000 J9 VSS AGND C6 VR_EXT 0.1F DNI J6 2 3 MILL-MAX SOCKET (F) 3 1 2 J8 MILL-MAX HEADER (M) CONNECTOR DNI 1 AGND 5 4 3 2 1 AGND 10k R1 10k 10k R20 DNI A B R21 DNI 10k R2 JP1 M20-9990345 10k R3 AGND 6 5 R22 DNI 0.1F C7 DNI 10k R4 10k 7 ADA4077-2BRZ U2 R25 DNI 1 P N DNI R24 10k MILL-MAX HEADER (M) CONNECTOR VDD VDD 1 2 3 VSS 10k R7 U1 10k AGND R8 8 TP 7 NC 6 VOUT 5 TRIM R5 10k 1 TP 2 VIN 3 NC 4 GND 3 2 U2 1 ADA4077-2BRZ 0.1F C8 DNI 10k R6 10k R23 DNI AGND J4 VREFN VREFP MILL-MAX SOCKET (F) 1 2 3 16010-018 DNI MILL-MAX HEADER (M) CONNECTOR 10F 10F Rev. 0 | Page 18 of 24 P Figure 19. Schematic of the EV-ADR445-REFZ N UG-1152 EVAL-AD5791SDZ User Guide ADR445 REFERENCE VOLTAGE DAUGHTER BOARD 10k UG-1152 16010-020 EVAL-AD5791SDZ User Guide 16010-021 Figure 20. EV-ADR445-REFZ Component Placement Schematic 16010-022 Figure 21. EV-ADR445-REFZ Top PCB Layer Schematic Figure 22. EV-ADR445-REFZ Bottom PCB Layer Schematic Rev. 0 | Page 19 of 24 IN AGND IN VDD VSS C1 C5 Q1 3 2N3904TF 1 0.1UF 0.1UF 2 C24 0.1UF 7 1MEG R44 U1 6 5 ADA4077-2BRZ R43 10K 8 U1 V+ VADA4077-2BRZ 4 MILL-MAX SUPPLY SOCKET (M) CONNETO R VDD 1 AGND 2 VSS 3 J1 1K R49 R41 R42 15K 1K U2 8 V+ VADA4077-2BRZ 4 0.1UF C22 4 7 5 1N270 D2 C A LTZ1000ACH#PBF U5 D1 A 0.1UF C13 U1 1 R8 C44 SHALL BE CONNECTED TO GND STAR POINT 1.5K U3 AND U4 HAVE KELVIN CONNECTION TO PIN 7 OF LTZ1000 TO GND 2 3 ADA4077-2BRZ 10UF AGND 6 5 C50 DNI 7 ADA4077-2BRZ R30 SHALL BE MATCHED RESISTORS IN THE SINGLE PACKAGE, Y1685-10K-ND 10K R45 0.1UF U2 3 2 DNI ADA4077-2BRZ 1 0.1UF 10K/10K 3 C51 DNI AGND J4 1 VREFP 2 3 VREFN MILL-MAX SOCKET (F) MILL-MAX HEADER (M) CONNECTOR 1 J9 2 3 U2 2 1 R48 J5 J6 1 1 2 2 3 3 MILL-MAX SOCKET (F) MILL-MAX SOCKET (F) PLACE ONE ABOVE AND BELOW J4 TO ADD PHYSICAL STABILIT Y NC PINS. RESERVED FOR FUTURE US E DNI PLACE ON TOP SECTION OF BOARD FOR STABILIT Y NC PINS. RESERVED FOR FUTURE US E DNI MILL-MAX HEADER (M) CONNECTOR 1 J7 2 3 25K DNI MILL-MAX HEADER (M) CONNECTOR 1 J8 2 3 R46 SINGLE GND STAR POINT FOR ALL CONNECTIONS HER E 1N270 C23 DNI MILL-MAX HEADER (M) CONNECTOR 1 J2 2 3 6 R40 8 3 68K C 0.1UF DNI MILL-MAX HEADER (M) CONNECTOR 1 J3 2 3 PLACE ONE ABOVE AND BELOW J1 TO ADD PHYSICAL STABILITY NC PINS. RESERVED FOR FUTURE USE 2 1 R39 120 VDD 10UF P 68K R20 P C12 N IN C3 C7 10UF P C2 N P C6 N 0.1UF 0.1UF C4 N P C8 10UF 10UF Rev. 0 | Page 20 of 24 16010-023 Figure 23. Schematic of the EV-LTZ1000-REFZ N UG-1152 EVAL-AD5791SDZ User Guide LTZ1000 REFERENCE VOLTAGE DAUGHTER BOARD UG-1152 16010-024 EVAL-AD5791SDZ User Guide 16010-025 Figure 24. EV-LTZ1000-REFZ Component Placement Schematic 16010-026 Figure 25. EV-LTZ1000-REFZ Top PCB Layer Schematic Figure 26. EV-LTZ1000-REFZ Bottom PCB Layer Schematic Rev. 0 | Page 21 of 24 UG-1152 EVAL-AD5791SDZ User Guide ORDERING INFORMATION BILL OF MATERIALS Table 6. AD5791 Carrier Board Reference Designator C1, C3, C5, C14, C16, C18, C21, C24, C26, C30, C32 C2, C4, C6, C13, C15, C17, C22, C25, C27 to C29, C31, C33 C34, C40 C35 C36, C37 C38 C39 C41, C42 C43, C44 C45, C47 C46, C48 C8 C9 D2 D3 J1, J9 J11 J12 J13 J14 J4 L1, L2, L3 L6 L7 L8 L9 LK1, LK8, LK9, LK10 LK2 to LK7, LK11 R0, R13 to R19, R37, R39 R9 to R12 R20, R26 R21 R22 R23 R24 R25 R27 R28 R29, R31, R34 R30 R32, R35 R33, R36 R42 TP1 to TP7, TP9, TP10 Part Description Capacitors, 3528, 10 F Part Number TAJB106K016RNJ Capacitors, 0603, 25 V, 0.1 F, 10% C1608X8R1E104K Capacitors, 0603, 6.3 V, 1 F, 20% Capacitor, 0805, 10 V, 10 F, 20% Capacitors, 1206, 50 V, 4.7 F, 20% Capacitor, 0603, 16 V, 0.022 F, 10% Capacitor, 0603, 16 V, 0.082 F, 10% Capacitors, 1206, 25 V, 2.2 F, 10% Capacitors, 0603, 10 V, 2.2 F, 10% Capacitors, 0603, 16 V, 1 F, 10% Capacitors, 0805, 25 V, 2.2 F, 10% Capacitor, 0603, 50 V, 27 pF, 5% Capacitor, 0603, 50 V, 22 pF, 5% Schottky diode Schottky diode 3-position female header, single-row connectors, 2.54 mm pitch 2-position terminal block (3.81 mm pitch) 10-position male header connector (3.81 mm pitch) 3-pin terminal block (3.81 mm pitch) 120-way connector, 0.6 mm pitch 3-position male header single row connector, 2.54 mm pitch Surface-mount power inductors Surface-mount power inductor Surface-mount power inductor Surface-mount power inductor Surface-mount power inductor 3-pin single-inline (SIL) header and shorting links 2-contact headers, two rows, through hole Resistors, 0 , 0.0625 W, 1%, 0603 Resistors, 10 k, 0.0625 W, 1%, 0603 Resistors, 30.1 k, 0.1 W, 1%, 0603 Resistor, 18.7 k, 0.1 W, 1%, 0603 Resistor, 4.7 , 0.1 W, 1%, 0603 Resistor, 63.4 k, 0.0625 W, 1%, 0402 Resistor, 3.57 k, 0.1 W, 1%, 0402 Resistor, 22 k, 0.1 W, 1%, 0603 Resistor, 2.8 k, 0.1 W, 1%, 0402 Resistor, 54.9 k, 0.1 W, 1%, 0402 Resistors, 10 , 0.1 W, 1%, 0603 Resistor, 1 , 0.0625 W, 5%, 0402 Resistors, 105 k, 0.1 W, 1%, 0603 Resistors, 10 k, 0.1 W, 1%, 0603 Resistor, 49.9 k, 0.1 W, 1%, 0603 Red test points JMK107B7105MA TACH106M010XTA C3216X7R1H475M160AC 0603YC223KAT2A CL10B823KO8NNNC C3216X7R1E225K GRM188R71A225KE15D GRM188R61C105KA93D GRM21BR71E225KA73L 2238 867 15279 CC0603JRNP09BN220 DFLS130-7 BAT54LPS 310-13-103-41-001000 1727010 M20-9980546 1727023 FX8-120S-SV(21) 350-10-103-00-006000 7427920415 LPS6235-153MRB XFL4020-152MEB LPS4018-222MRB LPS6235-682MRB M20-9990345 + M7567-05 69157-102 MC0603WG00000T5E-TC MC0063W0603110K ERJ-3EKF3012V ERJ-3EKF1872V ERJ-3RQF4R7V ERJ-2RKF6342X ERJ-2RKF3571X CRCW060322K0FKEA ERJ-2RKF2801X ERJ-2RKF5492X ERJ-3EKF10R0V CRCW04021R00JNED ERJ-3EKF1053V ERJ-3EKF1002V ERJ-3EKF4992V TP-104-01-02 Rev. 0 | Page 22 of 24 EVAL-AD5791SDZ User Guide Reference Designator U1 U2 U3 U4 U5 U6 U7 U8 VO, VO_BUF UG-1152 Part Description 1 ppm 20-bit, 1 LSB INL, voltage output DAC Ultraprecision, 36 V, 2.8 nV/Hz dual rail-to-rail output op amp 36 V precision, 2.8 nV/Hz rail-to-rail output op amp 64 kb I2C serial electrically erasable programmable read only memory (EEPROM) 1 A/0.6 A dc to dcc switching regulator with independent positive and negative outputs 20 V, 200 mA, low noise, complementary metal-oxidesemiconductor (CMOS) LDO linear regulator, 3.3 V fixed output voltage 20 V, 200 mA, low noise, CMOS LDO linear regulator -200 mA, low noise linear regulator Straight PCB mount subminiature Version B (SMB) jacks, 50 Part Number AD5791BRUZ AD8676BRMZ AD8675ARZ 24LC64-I/SN ADP5070ACPZ-R7 ADP7118ARDZ-3.3 ADP7118ARDZ ADP7182ACPZN 1-1337482-0 Table 7. ADR445 Daughter Board Reference Designator C1, C3, C5, C6 C2, C4 J1, J9 J4 JP1 R1 to R8 U1 U2 VR_EXT Part Description Capacitors, 0603, X8R, 25 V, 0.1 F, 10% Capacitors, 3528, 16 V, 10 F, 10% 3-position male header, single-row connectors, 2.54 mm pitch 3-position female header, single-row connector, 2.54 mm pitch 3-position header connector Resistors, 10 k, 0.125 W, 0.01%, 0805 Ultralow noise 5 V voltage reference High precision dual amplifier Straight PCB mount SMB jack, 50 Part Number C1608X8R1E104K TAJB106K016RNJ 350-10-103-00-006000 310-13-103-41-001000 M20-9990345 + M7567-05 ERA-6AEB103V ADR445BRZ ADA4077-2BRZ 1-1337482-0 Table 8. LTZ1000 Daughter Board Reference Designator C1, C3, C5, C7, C13, C22, C23, C24 C2, C4, C6, C8, C12 D1, D2 J1, J9 J4 Q1 R20 R39, R40 R41 R42 R43 R44 R45 R46 R48 R49 R8 U1, U2 U5 Part Description Capacitors, 0603, 25 V, 0 F, 10% Capacitors, 3528, 16 V, 1 F, 10% Radio frequency (RF)/pin diodes 3-position male header single row connectors, 2.54 mm pitch 3-position female header single row connector, 2.54 mm pitch Single bipolar junction transistor Resistor, 120 , 0.6 W, 0.01%, through hole Resistors, 68 k, 0.1 W, 0.1%, 0805 Resistor, 15 k, 0.6 W, 0.01%, through hole Resistor, 1 k, 0.6 W, 0.01%, through hole Resistor, 10 k, 0.6 W, 1%, through hole Resistor, 1 M, 0.6 W, 1%, through hole Resistor, 10 k, 0.6 W, 0.005%, through hole Resistor, 25 k, 0.6 W, 0.01%, through hole Resistor, 10 k/10 k, 0.1W, 0.01%, 1505 Resistor, 1 k, 0.6 W, 1%, through hole Resistor, 1.5 k, 0.25 W, 1%, through hole High precision dual amplifiers Ultraprecision reference Rev. 0 | Page 23 of 24 Part Number C1608X8R1E104K TAJB106K016RNJ 1N270 350-10-103-00-006000 310-13-103-41-001000 2N3904TF Y1453120R000T9 PCF0805-13-68K-B-T1 Y145315K0000T9 Y14531K00000T9 MRS25000C1002FRP00 MRS25000C1004FCT00 Y145310K0000V9L Y145325K0000T9 Y1685V0001TT9 MRS25000C1001FRP00 CMF-551501FT-1 ADA4077-2BRZ LTZ1000ACH#PBF UG-1152 EVAL-AD5791SDZ User Guide NOTES I2C refers to a communications protocol originally developed by Philips Semiconductors (now NXP Semiconductors). ESD Caution ESD (electrostatic discharge) sensitive device. Charged devices and circuit boards can discharge without detection. Although this product features patented or proprietary protection circuitry, damage may occur on devices subjected to high energy ESD. Therefore, proper ESD precautions should be taken to avoid performance degradation or loss of functionality. Legal Terms and Conditions By using the evaluation board discussed herein (together with any tools, components documentation or support materials, the "Evaluation Board"), you are agreeing to be bound by the terms and conditions set forth below ("Agreement") unless you have purchased the Evaluation Board, in which case the Analog Devices Standard Terms and Conditions of Sale shall govern. Do not use the Evaluation Board until you have read and agreed to the Agreement. Your use of the Evaluation Board shall signify your acceptance of the Agreement. This Agreement is made by and between you ("Customer") and Analog Devices, Inc. ("ADI"), with its principal place of business at One Technology Way, Norwood, MA 02062, USA. Subject to the terms and conditions of the Agreement, ADI hereby grants to Customer a free, limited, personal, temporary, non-exclusive, non-sublicensable, non-transferable license to use the Evaluation Board FOR EVALUATION PURPOSES ONLY. Customer understands and agrees that the Evaluation Board is provided for the sole and exclusive purpose referenced above, and agrees not to use the Evaluation Board for any other purpose. Furthermore, the license granted is expressly made subject to the following additional limitations: Customer shall not (i) rent, lease, display, sell, transfer, assign, sublicense, or distribute the Evaluation Board; and (ii) permit any Third Party to access the Evaluation Board. As used herein, the term "Third Party" includes any entity other than ADI, Customer, their employees, affiliates and in-house consultants. The Evaluation Board is NOT sold to Customer; all rights not expressly granted herein, including ownership of the Evaluation Board, are reserved by ADI. CONFIDENTIALITY. This Agreement and the Evaluation Board shall all be considered the confidential and proprietary information of ADI. Customer may not disclose or transfer any portion of the Evaluation Board to any other party for any reason. Upon discontinuation of use of the Evaluation Board or termination of this Agreement, Customer agrees to promptly return the Evaluation Board to ADI. ADDITIONAL RESTRICTIONS. Customer may not disassemble, decompile or reverse engineer chips on the Evaluation Board. Customer shall inform ADI of any occurred damages or any modifications or alterations it makes to the Evaluation Board, including but not limited to soldering or any other activity that affects the material content of the Evaluation Board. Modifications to the Evaluation Board must comply with applicable law, including but not limited to the RoHS Directive. TERMINATION. ADI may terminate this Agreement at any time upon giving written notice to Customer. Customer agrees to return to ADI the Evaluation Board at that time. LIMITATION OF LIABILITY. THE EVALUATION BOARD PROVIDED HEREUNDER IS PROVIDED "AS IS" AND ADI MAKES NO WARRANTIES OR REPRESENTATIONS OF ANY KIND WITH RESPECT TO IT. ADI SPECIFICALLY DISCLAIMS ANY REPRESENTATIONS, ENDORSEMENTS, GUARANTEES, OR WARRANTIES, EXPRESS OR IMPLIED, RELATED TO THE EVALUATION BOARD INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTY OF MERCHANTABILITY, TITLE, FITNESS FOR A PARTICULAR PURPOSE OR NONINFRINGEMENT OF INTELLECTUAL PROPERTY RIGHTS. IN NO EVENT WILL ADI AND ITS LICENSORS BE LIABLE FOR ANY INCIDENTAL, SPECIAL, INDIRECT, OR CONSEQUENTIAL DAMAGES RESULTING FROM CUSTOMER'S POSSESSION OR USE OF THE EVALUATION BOARD, INCLUDING BUT NOT LIMITED TO LOST PROFITS, DELAY COSTS, LABOR COSTS OR LOSS OF GOODWILL. ADI'S TOTAL LIABILITY FROM ANY AND ALL CAUSES SHALL BE LIMITED TO THE AMOUNT OF ONE HUNDRED US DOLLARS ($100.00). EXPORT. Customer agrees that it will not directly or indirectly export the Evaluation Board to another country, and that it will comply with all applicable United States federal laws and regulations relating to exports. GOVERNING LAW. This Agreement shall be governed by and construed in accordance with the substantive laws of the Commonwealth of Massachusetts (excluding conflict of law rules). Any legal action regarding this Agreement will be heard in the state or federal courts having jurisdiction in Suffolk County, Massachusetts, and Customer hereby submits to the personal jurisdiction and venue of such courts. The United Nations Convention on Contracts for the International Sale of Goods shall not apply to this Agreement and is expressly disclaimed. (c)2018 Analog Devices, Inc. All rights reserved. Trademarks and registered trademarks are the property of their respective owners. UG16010-0-1/18(0) Rev. 0 | Page 24 of 24