LM193A,LM193QML LM193A/LM193QML Low Power Low Offset Voltage Dual Comparators Literature Number: SNOSAM2B LM193A/LM193QML Low Power Low Offset Voltage Dual Comparators General Description Advantages The LM193 series consists of two independent precision voltage comparators with an offset voltage specification as low as 2.0 mV max for two comparators which were designed specifically to operate from a single power supply over a wide range of voltages. Operation from split power supplies is also possible and the low power supply current drain is independent of the magnitude of the power supply voltage. These comparators also have a unique characteristic in that the input common-mode voltage range includes ground, even though operated from a single power supply voltage. Application areas include limit comparators, simple analog to digital converters; pulse, squarewave and time delay generators; wide range VCO; MOS clock timers; multivibrators and high voltage digital logic gates. The LM193 series was designed to directly interface with TTL and CMOS. When operated from both plus and minus power supplies, the LM193 series will directly interface with MOS logic where their low power drain is a distinct advantage over standard comparators. High precision comparators Reduced VOS drift over temperature Eliminates need for dual supplies Allows sensing near ground Compatible with all forms of logic Power drain suitable for battery operation Features Available with radiation guarantee 100 krad(Si) -- Total Ionizing Dose 100 krad(Si) -- ELDRS Free Wide supply 2.0VDC to 36VDC -- Voltage range: 1.0V to 18V -- Single or dual supplies: Very low supply current drain (0.4 mA) -- independent of supply voltage Low input biasing current: 25 nA typ Low input offset current: 5 nA typ Input common-mode voltage range includes ground Differential input voltage range equal to the power supply voltage Low output saturation voltage,: 250 mV at 4 mA typ Output voltage compatible with TTL, DTL, ECL, MOS and CMOS logic systems Ordering Information NS Part Number SMD Part Number LM193H/883 LM193J/883 NS Package Number Package Description H08C 8LD T0-99 Metal Can J08A 8LD CERDIP H08C 8LD T0-99 Metal Can 5962-9452602MPA J08A 8LD CERDIP 5962-9452602VGA H08C 8LD T0-99 Metal Can LM193AJ-QMLV 5962-9452602VPA J08A 8LD CERDIP LM193AHRQMLV (Note 11) 5962R9452602VGA 100 krad(Si) H08C 8LD T0-99 Metal Can LM193AJRQMLV (Note 11) 5962R9452602VPA 100 krad(Si) J08A 8LD CERDIP LM193AHRLQMLV (Note 12) ELDRS Free 5962R9452603VGA 100 krad(Si) H08C 8LD T0-99 Metal Can LM193AJRLQMLV (Note 12) ELDRS Free 5962R9452603VPA 100 krad(Si) J08A 8LD CERDIP LM193AH/883 5962-9452602MGA LM193AJ/883 LM193AH-QMLV (c) 2007 National Semiconductor Corporation 201396 www.national.com LM193A/LM193QML Low Power Low Offset Voltage Dual Comparators October 2007 LM193A/LM193QML Schematic and Connection Diagrams 20139602 Metal Can Package 20139603 Dual-In-Line Package 20139601 www.national.com 2 LM193A/LM193QML Absolute Maximum Ratings (Note 1) Supply Voltage, V+ Differential Input Voltage (Note 6) Input Voltage Input Current (VIN< -0.3VDC) (Note 5) Maximum Junction Temperature Power Dissipation (Note 2), (Note 3) Metal Can CERDIP Output Short-Circuit to Ground (Note 4) Operating Temperature Range 36VDC or 18VDC 36V -0.3VDC to +36VDC 50 mA 150C 660 mW 780 mW Continuous -55C TA +125C -65C TA +150C Storage Temperature Range Thermal Resistance JA Metal Can (Still Air) Metal Can (500LF/Min Air flow) CERDIP (Still Air) CERDIP (500LF/Min Air flow) 174C/W 99C/W 146C/W 85C/W JC Metal Can CERDIP Lead Temperature (Soldering, 10 seconds) ESD Tolerance (Note 7) 44C/W 33C/W 260C 500V Quality Conformance Inspection Mil-Std-883, Method 5005 - Group A Subgroup Description TempC 1 Static tests at 25 2 Static tests at 125 3 Static tests at -55 4 Dynamic tests at 25 5 Dynamic tests at 125 6 Dynamic tests at -55 7 Functional tests at 25 8A Functional tests at 125 8B Functional tests at -55 9 Switching tests at 25 10 Switching tests at 125 11 Switching tests at -55 12 Settling time at 25 13 Settling time at 125 14 Settling time at -55 3 www.national.com LM193A/LM193QML LM193 Electrical Characteristics DC Parameters The following conditions apply, unless otherwise specified. Symbol Parameter ICC Supply Current ICEX Output Leakage Current +V = 5V, VCM = 0V Conditions Notes Min +V = 36V +V = 30V, +VI = 1V, VO = 30V, -VI = 0V ISink Output Sink Current VO = 1.5V, -VI = 1V, +VI = 0V VSat Output Saturation Voltage ISink = 4mA, -VI = 1V, +VI = 0V VIO Input Offset Voltage +V = 30V, VCM = 28.0V 1.0 mA 1, 2, 3 1, 2, 3 2.5 mA -0.65 0.65 A 1 -1.0 1.0 A 2, 3 mA 1 V 1 2, 3 0.7 V -5.0 5.0 mV 1 -9.0 9.0 mV 2, 3 -5.0 5.0 mV 1 -9.0 9.0 mV 2, 3 -5.0 5.0 mV 1 2, 3 -9.0 9.0 mV -100 -1.0 nA 1 -300 -1.0 nA 2, 3 -25 25 nA 1 -100 100 nA 2, 3 (Note 8) 28.5 V 1 (Note 8) 28 V 2, 3 Input Bias Current Input offset Current Subgroups 0.4 +V = 30V, VCM = 28.5V IIO Unit 6.0 +V = 30V IIB Max RS = 50 VCM Common Mode Voltage +V = 30V PSRR Power Supply Rejection Ratio +V = 5V to 30V, RS = 50 60 dB 1 CMRR Common Mode Rejection Ratio +V = 30V, RS = 50 VCM = 0V to 28.5V, 60 dB 1 VDiff Differential Input Voltage +V = 30V, +VI = 36V, -VI = 0V (Note 10) 500 nA 1, 2, 3 +V = 30V, +VI = 0V, -VI = +36V (Note 10) 500 nA 1, 2, 3 V/mV 4 Max Unit Subgroups VOD = 5mV 5.0 S 9 VOD = 50mV 0.8 S 9 VOD = 5mV 2.5 S 9 VOD = 50mV 0.8 S 9 AVS Voltage Gain +V = 15V, RPullUp = 15K 1V VO 11V, (Note 9) 50 Notes Min AC Parameters The following conditions apply, unless otherwise specified. Symbol tRLH tRHL Parameter Response Time Response Time www.national.com +V = 5V Conditions 4 DC Parameters The following conditions apply, unless otherwise specified. Symbol ICC Parameter Supply Current +V = 5V, VCM = 0V Conditions Max Unit Subgroups RL = Infinity 1.0 mA 1, 2, 3 +V = 36V, RL = Infinity 2.5 mA 1, 2, 3 A 1 A 2, 3 Notes Min ICEX Output Leakage Current +V = 30V, +VI = 1V, VO = 30, -VI = 0 -0.65 0.65 -1.0 1.0 ISink Output Sink Current VO = 1.5V, -VI = 1V, +VI = 0V 6.0 mA 1 4.0 mA 2, 3 VSat VIO Output Saturation Voltage ISink = 4mA, -VI = 1V, +VI = 0V 0.4 V 1 0.7 V 2, 3 -2.0 2.0 mV 1 -4.0 4.0 mV 2, 3 -2.0 2.0 mV 1 -4.0 4.0 mV 2, 3 +V = 30V, VCM = 28.5V -2.0 2.0 mV 1 +V = 30V, VCM = 28.0V -4.0 4.0 mV 2, 3 -100 -1.0 nA 1 -300 -1.0 nA 2, 3 -25 25 nA 1 -100 100 nA 2, 3 (Note 8) 28.5 V 1 (Note 8) 28 V 2, 3 Input Offset Voltage +V = 30V IIB Input Bias Current VO = 1.5V IIO Input offset Current RS = 50, VO = 1.5V VCM Common Mode Voltage +V = 30V PSRR Power Supply Rejection Ratio +V = 5V to 30V, RS = 50 60 dB 1 CMRR Common Mode Rejection Ratio +V = 30V, RS = 50 VCM = 0V to 28.5V, 60 dB 1 VDiff Differential Input Voltage +V = 30V, +VI = 36V, -VI = 0V (Note 10) 500 nA 1, 2, 3 +V = 30V, +VI = 0V, -VI = +36V (Note 10) 500 nA 1, 2, 3 +V = 15V, RPullUp = 15K (Note 9) 50 V/mV 4 (Note 9) 25 V/mV 5, 6 Notes Min Max Unit Subgroups VOD = 5mV 5.0 S 9 VOD = 50mV 0.8 S 9 VOD = 5mV 2.5 S 9 VOD = 50mV 0.8 S 9 Min Max Unit Subgroups -1.0 1.0 mV 1 -15 15 nA 1 AVS Voltage Gain 1V VO 11V, AC Parameters The following conditions apply, unless otherwise specified. Symbol Parameter tRLH Response Time tRHL Response Time +V = 5V, VCM = 0V Conditions DC Drift Parameters The following conditions apply, unless otherwise specified. +V = 5V, VCM = 0V Delta calculations performed on QMLV devices at Group B, Subgroup 5 only Symbol Parameter VIO Input Offset Voltage IIB Input Bias Current Conditions +V = 30V 5 Notes www.national.com LM193A/LM193QML LM193A Electrical Characteristics LM193A/LM193QML LM193A - 100K Radiation Electrical Characteristics DC Parameters The following conditions apply, unless otherwise specified. Symbol Parameter +V = 5V, VCM = 0V Conditions Notes Min RL = Infinity Max Unit Subgroups 1.0 mA 1, 2, 3 ICC Supply Current 2.5 mA 1, 2, 3 ICEX Output Leakage Current +V = 30V, +VI = 1V, VO = 30, -VI = 0 -0.65 0.65 A 1 -1.0 1.0 A 2, 3 ISink Output Sink Current VO = 1.5V, -VI = 1V, +VI = 0V 6.0 mA 1 4.0 mA 2, 3 V 1 2, 3 +V = 36V, RL = Infinity VSat Output Saturation Voltage VIO Input Offset Voltage ISink = 4mA, -VI = 1V, +VI = 0V 0.4 +V = 30V +V = 30V, VCM = 28.5V 0.7 V -2.0 2.0 mV 1 -4.0 4.0 mV 2, 3 -2.0 2.0 mV 1 -4.0 4.0 mV 2, 3 -2.0 2.0 mV 1 +V = 30V, VCM = 28.0V -4.0 4.0 mV 2, 3 IIB Input Bias Current VO = 1.5V -100 -1.0 nA 1 -300 -1.0 nA 2, 3 IIO Input offset Current RS = 50, VO = 1.5V -25 25 nA 1 -100 100 nA 2, 3 (Note 8) 28.5 V 1 (Note 8) 28 V 2, 3 VCM Common Mode Voltage +V = 30V PSRR Power Supply Rejection Ratio +V = 5V to 30V, RS = 50 60 dB 1 CMRR Common Mode Rejection Ratio +V = 30V, RS = 50 VCM = 0V to 28.5V, 60 dB 1 VDiff Differential Input Voltage +V = 30V, +VI = 36V, -VI = 0V (Note 10) 500 nA 1, 2, 3 +V = 30V, +VI = 0V, -VI = +36V (Note 10) 500 nA 1, 2, 3 +V = 15V, RPullUp = 15K (Note 9) 50 V/mV 4 (Note 9) 25 V/mV 5, 6 Notes Min Max Unit Subgroups VOD = 5mV 5.0 S 9 VOD = 50mV 0.8 S 9 VOD = 5mV 2.5 S 9 VOD = 50mV 0.8 S 9 AVS Voltage Gain 1V VO 11V, AC Parameters The following conditions apply, unless otherwise specified. Symbol Parameter tRLH Response Time tRHL Response Time www.national.com +V = 5V, VCM = 0V Conditions 6 DC Drift Parameters The following conditions apply, unless otherwise specified. +V = 5V, VCM = 0V Delta calculations performed on QMLV devices at Group B, Subgroup 5 only Symbol Parameter VIO Input Offset Voltage IIB Input Bias Current Conditions Notes +V = 30V Min Max Unit Subgroups -1.0 1.0 mV 1 -15 15 nA 1 Min Max Unit Subgroups 1.0 S 9 AC Parameters - Post Radiation Limits @ +25C The following conditions apply, unless otherwise specified. Symbol tRLH Parameter Response Time +V = 5V, VCM = 0V Conditions VOD = 50mV Notes Note 1: Absolute Maximum Ratings indicate limits beyond which damage to the device may occur. Operating Ratings indicate conditions for which the device is functional, but do not guarantee specific performance limits. For guaranteed specifications and test conditions, see the Electrical Characteristics. The guaranteed specifications apply only for the test conditions listed. Some performance characteristics may degrade when the device is not operated under the listed test conditions. Note 2: The maximum power dissipation must be derated at elevated temperatures and is dictated by TJmax (maximum junction temperature), JA (package junction to ambient thermal resistance), and TA (ambient temperature). The maximum allowable power dissipation at any temperature is PDmax = (TJmax - TA)/ JA or the number given in the Absolute Maximum Ratings, whichever is lower. Note 3: The LM193A must be derated based on a 150C, TJmax. The low bias dissipation and the ON-OFF characteristic of the outputs keep the chip dissipation very small (PD 100mV), provided the output transistors are allowed to saturate. Note 4: Short circuits from the output to V+ can cause excessive heating and eventual destruction. When considering short circuits to ground, the maximum output current is approximately 20 mA independent of the magnitude of V+. Note 5: This input current will only exist when the voltage at any of the input leads is driven negative. It is due to the collector-base junction of the input PNP transistors becoming forward biased and thereby acting as input diode clamps. In addition to this diode action, there is also lateral NPN parasitic transistor action on the IC chip. This transistor action can cause the output voltages of the comparators to go to the V+ voltage level (or to ground for a large overdrive) for the time duration that an input is driven negative. This is not destructive and normal output states will re-establish when the input voltage, which was negative, again returns to a value greater than -0.3VDC. Note 6: Positive excursions of input voltage may exceed the power supply level. As long as the other voltage remains within the common-mode range, the comparator will provide a proper output state. The low input voltage state must not be less than -0.3V (or 0.3V below the magnitude of the negative power supply, if used). Note 7: Human body model, 1.5K in series with 100pF. Note 8: Parameter guaranteed by the VIO tests. Note 9: Datalog reading in K = V/mV. Note 10: The value for VDiff is not datalogged during Read and Record. Note 11: Pre and post irradiation limits are identical to those listed under AC and DC electrical characteristics except as listed in the Post Radiation Limits Table. These parts may be dose rate sensitive in a space environment and demonstrate enhanced low dose rate effect. Radiation end point limits for the noted parameters are guaranteed only for the conditions as specified in MIL-STD-883, Method 1019 Note 12: Low dose rate testing has been performed on a wafer-by-wafer basis, per test method 1019 condition D of MIL-STD-883, with no enhanced low dose rate sensitivity (ELDRS) effect. 7 www.national.com LM193A/LM193QML LM193A - 100K Radiation Electrical Characteristics (Continued) LM193A/LM193QML Typical Performance Characteristics Supply Current Input Current 20139625 20139626 Output Saturation Voltage Response Time for Various Input Overdrives--Negative Transition 20139627 20139628 Response Time for Various Input Overdrives--Positive Transition 20139629 www.national.com 8 The LM193 series are high gain, wide bandwidth devices which, like most comparators, can easily oscillate if the output lead is inadvertently allowed to capacitively couple to the inputs via stray capacitance. This shows up only during the output voltage transition intervals as the comparator change states. Power supply bypassing is not required to solve this problem. Standard PC board layout is helpful as it reduces stray input-output coupling. Reducing the input resistors to < 10 K reduces the feedback signal levels and finally, adding even a small amount (1.0 to 10 mV) of positive feedback (hysteresis) causes such a rapid transition that oscillations due to stray feedback are not possible. Simply socketing the IC and attaching resistors to the pins will cause input-output oscillations during the small transition intervals unless hysteresis is used. If the input signal is a pulse waveform, with relatively fast rise and fall times, hysteresis is not required. All input pins of any unused comparators should be tied to the negative supply. The bias network of the LM193 series establishes a drain current which is independent of the magnitude of the power supply voltage over the range of from 2.0 VDC to 30 VDC. It is usually unnecessary to use a bypass capacitor across the power supply line. The differential input voltage may be larger than V+ without damaging the device (Note 6). Protection should be provided to prevent the input voltages from going negative more than -0.3 VDC (at 25C). An input clamp diode can be used as shown in the applications section. The output of the LM193 series is the uncommitted collector of a grounded-emitter NPN output transistor. Many collectors can be tied together to provide an output OR'ing function. An output pull-up resistor can be connected to any available power supply voltage within the permitted supply voltage range and there is no restriction on this voltage due to the magnitude of the voltage which is applied to the V+ terminal of the LM193 package. The output can also be used as a simple SPST switch to ground (when a pull-up resistor is not used). The amount of current which the output device can sink is limited by the drive available (which is independent of V+) and the of this device. When the maximum current limit is reached (approximately 16mA), the output transistor will come out of saturation and the output voltage will rise very rapidly. The output saturation voltage is limited by the approximately 60 rSAT of the output transistor. The low offset voltage of the output transistor (1.0mV) allows the output to clamp essentially to ground level for small load currents. Typical Applications (V+=5.0 VDC) Basic Comparator Driving CMOS Driving TTL 20139635 20139636 Squarewave Oscillator Pulse Generator 20139637 Crystal Controlled Oscillator 20139638 20139640 20139639 * For large ratios of R1/R2, D1 can be omitted. 9 www.national.com LM193A/LM193QML Application Hints LM193A/LM193QML Two-Decade High Frequency VCO 20139641 V* = +30 VDC +250 mVDC VC +50 VDC 700Hz fo 100kHz Basic Comparator Non-Inverting Comparator with Hysteresis 20139606 20139609 Inverting Comparator with Hysteresis Output Strobing 20139610 20139611 www.national.com 10 LM193A/LM193QML AND Gate OR Gate 20139613 20139612 Large Fan-in AND Gate Limit Comparator 20139615 20139614 Comparing Input Voltages of Opposite Polarity ORing the Outputs 20139616 20139617 11 www.national.com LM193A/LM193QML Zero Crossing Detector (Single Power Supply) One-Shot Multivibrator 20139621 20139622 Bi-Stable Multivibrator One-Shot Multivibrator with Input Lock Out 20139624 20139623 Zero Crossing Detector Comparator With a Negative Reference 20139644 20139643 www.national.com 12 LM193A/LM193QML Time Delay Generator 20139607 Split-Supply Applications (V+=+15 VDC and V-=-15 VDC) MOS Clock Driver 20139642 13 www.national.com LM193A/LM193QML Revision History Date Released Revision Section Originator Changes 05/09/05 A New Release. Corporate format L. Lytle 2 MDS datasheets converted into one Corp. datasheet format. MNLM193A-X Rev 1B3 & MNLM193-X Rev 0E1. The Iout Vsat condition for LM193 was changed to Isink for consistency with the LM193A and JAN electrical conditions. Also, redundant parameters were removed from conditions that were defined at beginning of the table. MDS data sheets will be archived. Larry McGee Added Radiation Electrical information for LM193A Device. Revision A will be archived. 05/07/07 B Features, Ordering Information, LM193A Electricals 10/29/07 C Features, Ordering Information, Notes Larry McGee www.national.com 14 Added reference to New ELDS NSID and SMD Device 03, ELDRS Note 12. Revision B will be archived. LM193A/LM193QML Physical Dimensions inches (millimeters) unless otherwise noted Metal Can Package (H) NS Package Number H08C Ceramic Dual-In-Line Package NS Package Number J08A 15 www.national.com LM193A/LM193QML Low Power Low Offset Voltage Dual Comparators Notes THE CONTENTS OF THIS DOCUMENT ARE PROVIDED IN CONNECTION WITH NATIONAL SEMICONDUCTOR CORPORATION ("NATIONAL") PRODUCTS. NATIONAL MAKES NO REPRESENTATIONS OR WARRANTIES WITH RESPECT TO THE ACCURACY OR COMPLETENESS OF THE CONTENTS OF THIS PUBLICATION AND RESERVES THE RIGHT TO MAKE CHANGES TO SPECIFICATIONS AND PRODUCT DESCRIPTIONS AT ANY TIME WITHOUT NOTICE. NO LICENSE, WHETHER EXPRESS, IMPLIED, ARISING BY ESTOPPEL OR OTHERWISE, TO ANY INTELLECTUAL PROPERTY RIGHTS IS GRANTED BY THIS DOCUMENT. TESTING AND OTHER QUALITY CONTROLS ARE USED TO THE EXTENT NATIONAL DEEMS NECESSARY TO SUPPORT NATIONAL'S PRODUCT WARRANTY. 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