30 V, Micropower, Overvoltage Protection,
Rail-to-Rail Input/Output Amplifier
Data Sheet ADA4096-2
Rev. A
Information furnished by Analog Devices is believed to be accurate and reliable. However, no
responsibility is assumed by Analog Devices for its use, nor for any infringements of patents or other
rights of third parties that may result from its use. Specifications subject to change without notice. No
license is granted by implication or otherwise under any patent or patent rights of Analog Devices.
Trademarks and registered trademarks are the property of their respective owners.
One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.
Tel: 781.329.4700 www.analog.com
Fax: 781.461.3113 ©2011–2012 Analog Devices, Inc. All rights reserved.
FEATURES
Input overvoltage protection, 32 V above and below
the supply rails
Rail-to-rail input and output swing
Low power: 60 μA per amplifier typical
Unity-gain bandwidth
800 kHz typical @ VSY = ±15 V
550 kHz typical @ VSY = ±5 V
465 kHz typical @ VSY = ±1.5 V
Single-supply operation: 3 V to 30 V
Low offset voltage: 300 μV maximum
High open-loop gain: 120 dB typical
Unity-gain stable
No phase reversal
Qualified for automotive applications
APPLICATIONS
Battery monitoring
Sensor conditioners
Portable power supply control
Portable instrumentation
PIN CONFIGURATIONS
OUTA
1
–INA
2
+INA
3
–V
4
+V
8
OUTB
7
–INB
6
+INB
5
ADA4096-2
TOP VIEW
(No t to Scale)
09241-001
Figure 1. 8-Lead, MSOP (RM-8)
+V
OUTB
–INB
+INB
ADA4096-2
TOP VIEW
(No t to Scale)
3+INA
4–V
1OUTA
2–INA
6
5
8
7
NOTES
1. CONNECT T HE E XP O SE D
PAD TO GROUND.
09241-002
Figure 2. 8-Lead LFCSP (CP-8-10)
GENERAL DESCRIPTION
The ADA4096-2 operational amplifier features micropower
operation and rail-to-rail input and output ranges. The
extremely low power requirements and guaranteed operation
from 3 V to 30 V make these amplifiers perfectly suited to
monitor battery usage and to control battery charging. Their
dynamic performance, including 27 nV/√Hz voltage noise
density, recommends them for battery-powered audio applica-
tions. Capacitive loads to 200 pF are handled without oscillation.
The ADA4096-2 has overvoltage protection inputs and diodes
that allow the voltage input to extend 32 V above and below
the supply rails, making this device ideal for robust industrial
applications.
The ADA4096-2 features a unique input stage that allows the
input voltage to exceed either supply safely without any phase
reversal or latch-up; this is called overvoltage protection, or OVP.
The dual ADA4096-2 is available in 8-lead LFCSP (2 mm × 2 mm)
and 8-lead MSOP packages. The ADA409x family is specified
over the extended industrial temperature range (−40°C to +125°C)
and is part of the growing selection of 30 V, low power op amps
from Analog Devices, Inc. (see Table 1).
Table 1. Low Power, 30 V Operational Amplifiers
Op Amp Rail-to-Rail I/O PJFET Low Noise
Dual ADA4091-2 AD8682 AD8622
Quad ADA4091-4 AD8684 AD8624
ADA4096-2 Data Sheet
Rev. A | Page 2 of 20
TABLE OF CONTENTS
Features .............................................................................................. 1
Applications ....................................................................................... 1
Pin Configurations ........................................................................... 1
General Description ......................................................................... 1
Revision History ............................................................................... 2
Specifications ..................................................................................... 3
Electrical Specifications, VSY = ±1.5 V ....................................... 3
Electrical Specifications, VSY = ±5 V .......................................... 4
Electrical Specifications, VSY = ±15 V ........................................ 5
Absolute Maximum Ratings ............................................................ 7
Thermal Resistance ...................................................................... 7
ESD Caution .................................................................................. 7
Typical Performance Characteristics ............................................. 8
±1.5 V Characteristics ..................................................................8
±5 V Characteristics ................................................................... 10
±15 V Characteristics ................................................................ 12
Comparative Voltage and Variable Voltage Graphs ............... 14
Theory of Operation ...................................................................... 15
Input Stage ................................................................................... 15
Phase Inversion ........................................................................... 15
Input Overvoltage Protection ................................................... 16
Comparator Operation .............................................................. 17
Outline Dimensions ....................................................................... 18
Ordering Guide .......................................................................... 19
Automotive Products ................................................................. 19
REVISION HISTORY
3/12—Rev. 0 to Rev. A
Changed −3 dB Closed-Loop Bandwidth from 97 kHz to
970 kHz(Table 2) ............................................................................... 3
Changed −3 dB Closed-Loop Bandwidth from 114 kHz to
1140 kHz (Table 3)............................................................................ 4
Changed to −3 dB Closed-Loop Bandwidth from 152 kHz to
1520 kHz (Table 4)............................................................................ 5
Updated Outline Dimensions ....................................................... 18
7/11—Revision 0: Initial Version
Data Sheet ADA4096-2
Rev. A | Page 3 of 20
SPECIFICATIONS
ELECTRICAL SPECIFICATIONS, VSY = ±1.5 V
VSY = ±1.5 V, VCM = VSY/2, TA = 25°C, unless otherwise noted.
Table 2.
Parameter Symbol Test Conditions/Comments Min Typ Max Unit
INPUT CHARACTERISTICS
Offset Voltage VOS 35 300 µV
0°C ≤ TA ≤ +125°C 450 µV
−40°C ≤ TA ≤ +125°C 900 µV
Offset Voltage Drift ∆VOS/∆T −40°C ≤ TA ≤ +125°C 1 µV/°C
Input Bias Current
I
B
±10
±15
nA
−40°C ≤ TA ≤ +125°C ±16 nA
Input Offset Current IOS ±0.1 ±1.5 nA
−40°C ≤ TA ≤ +125°C ±3 nA
Input Voltage Range −1.5 +1.5 V
Common-Mode Rejection Ratio CMRR VCM = 0 V to ±1.5 V 63 77 dB
−40°C ≤ TA ≤ +125°C 58 dB
Large Signal Voltage Gain AVO RL = 10 kΩ, VO = −1.4 V to +1.4 V 92 94 dB
−40°C ≤ TA ≤ +125°C 84 dB
RL = 2 kΩ, VO = −1.3 V to +1.3 V 86 92 dB
−40°C ≤ TA ≤ +125°C 77 dB
MATCHING CHARACTERISTICS
Offset Voltage TA = 25°C 100 300 µV
OUTPUT CHARACTERISTICS
Output Voltage High VOH RL = 10 kΩ to GND 1.48 1.49 V
−40°C ≤ TA ≤ +125°C 1.45 V
RL = 2 kΩ to GND 1.45 1.46 V
−40°C to +125°C 1.40 V
Output Voltage Low VOL RL = 10 kΩ to GND −1.49 −1.48 V
−40°C ≤ TA ≤ +125°C −1.45 V
RL = 2 kΩ to GND −1.48 −1.47 V
−40°C ≤ TA ≤ +125°C −1.40 V
Short-Circuit Limit ISC Source/sink ±10 mA
Closed-Loop Impedance ZOUT f = 100 kHz, AV = 1 102 Ω
POWER SUPPLY
Power Supply Rejection Ratio PSRR VSY = 3 V to 36 V 100 dB
−40°C ≤ TA ≤ +125°C 90 dB
Supply Current per Amplifier ISY VO = VSY/2 40 µA
−40°C ≤ T
A
≤ +125°C
80
µA
DYNAMIC PERFORMANCE
Slew Rate SR RL = 100 kΩ, CL = 30 pF 0.25 V/µs
Gain Bandwidth Product GBP VIN = 5 mV p-p, RL = 10 kΩ, AV = 100 501 kHz
Unity-Gain Crossover UGC VIN = 5 mV p-p, RL = 10 kΩ, AV = 1 465 kHz
Phase Margin ΦM 51 Degrees
−3 dB Closed-Loop Bandwidth −3 dB AV = 1, VIN = 5 mV p-p 970 kHz
NOISE PERFORMANCE
Voltage Noise en p-p 0.1 Hz to 10 Hz 0.7 µV p-p
Voltage Noise Density
e
n
f = 1 kHz
27
nV/√Hz
Current Noise Density in f = 1 kHz 0.2 pA/√Hz
ADA4096-2 Data Sheet
Rev. A | Page 4 of 20
ELECTRICAL SPECIFICATIONS, VSY = ±5 V
VSY = ±5.0 V, VCM = VSY/2, TA = 25°C, unless otherwise noted.
Table 3.
Parameter
Symbol
Test Conditions/Comments
Min
Typ
Max
Unit
INPUT CHARACTERISTICS
Offset Voltage
V
OS
35
300
µV
−40°C ≤ TA ≤ +125°C 500 µV
Offset Voltage Drift ∆VOS/∆T 1 µV/°C
Input Bias Current IB ±10 ±15 nA
−40°C ≤ TA ≤ +125°C ±19 nA
Input Offset Current IOS ±1.5 ±2 nA
−40°C ≤ TA ≤ +125°C ±3 nA
Input Voltage Range −5 +5 V
Common-Mode Rejection Ratio CMRR VCM = −5 V to +5 V 73 86 dB
−40°C ≤ TA ≤ +125°C 68 dB
VCM = −3 V to +3 V 91 103 dB
−40°C ≤ TA ≤ +125°C 85 dB
Large Signal Voltage Gain AVO RL = 10 kΩ, VO = ±4.8 V 102 111 dB
−40°C ≤ TA ≤ +125°C 99 dB
RL = 2 kΩ, VO = ±4.7 V 94 103 dB
−40°C ≤ TA ≤ +125°C 88 dB
MATCHING CHARACTERISTICS
Offset Voltage TA = 25°C 100 300 µV
OUTPUT CHARACTERISTICS
Output Voltage High VOH RL = 10 kΩ to GND 4.96 4.97 V
−40°C ≤ TA ≤ +125°C 4.95 V
RL = 2 kΩ to GND 4.80 4.90 V
−40°C ≤ TA ≤ +125°C 4.70 V
Output Voltage Low VOL RL = 10 kΩ to GND −4.98 −4.97 V
−40°C ≤ TA ≤ +125°C −4.95 V
RL = 2 kΩ to GND −4.90 −4.80 V
−40°C ≤ T
A
≤ +125°C
−4.75
V
Short-Circuit Limit ISC Source/sink ±10 mA
Closed-Loop Impedance ZOUT f = 100 kHz, AV = 1 71 Ω
POWER SUPPLY
Power Supply Rejection Ratio
PSRR
V
SY
= 3 V to 36 V
100
dB
−40°C ≤ TA ≤ +125°C 90 dB
Supply Current per Amplifier ISY VO = VSY/2 47 55 µA
−40°C ≤ TA ≤ +125°C 75 µA
DYNAMIC PERFORMANCE
Slew Rate SR RL = 100 kΩ, CL = 30 pF 0.3 V/µs
Gain Bandwidth Product GBP VIN = 5 mV p-p, RL = 10 kΩ, AV = 100 595 kHz
Unity-Gain Crossover UGC VIN = 5 mV p-p, RL = 10 kΩ, AV = 1 550 kHz
Phase Margin ΦM 52 Degrees
−3 dB Closed-Loop Bandwidth −3 dB AV = 1, VIN = 5 mV p-p 1140 kHz
NOISE PERFORMANCE
Voltage Noise en p-p 0.1 Hz to 10 Hz 0.7 µV p-p
Voltage Noise Density en f = 1 kHz 27 nV/√Hz
Current Noise Density in f = 1 kHz 0.2 pA/√Hz
Data Sheet ADA4096-2
Rev. A | Page 5 of 20
ELECTRICAL SPECIFICATIONS, VSY = ±15 V
VSY = ±15.0 V, VCM = VSY/2, VO = 0.0 V, TA = 25°C, unless otherwise noted.
Table 4.
Parameter Symbol Test Conditions/Comments Min Typ Max Unit
INPUT CHARACTERISTICS
Offset Voltage VOS 35 300 µV
−40°C ≤ TA ≤ +125°C 500 µV
Offset Voltage Drift ∆VOS/∆T 1 µV/°C
Input Bias Current IB ±3 ±10 nA
−40°C ≤ TA ≤ +125°C ±15 nA
Input Offset Current IOS ±0.1 ±1.5 nA
−40°C ≤ TA ≤ +125°C ±3 nA
Input Voltage Range −15 +15 V
Common-Mode Rejection Ratio CMRR VCM = −15 V to +15 V 82 95 dB
−40°C ≤ TA ≤ +125°C 75 dB
VCM = −13 V to +13 V 95 107 dB
−40°C ≤ T
A
≤ +125°C
89
dB
Large Signal Voltage Gain AVO RL = 10 kΩ, VO = ±14.7 V 110 120 dB
−40°C ≤ TA ≤ +125°C 105 dB
RL = 2 kΩ, VO = ±11 V 100 112 dB
−40°C ≤ TA ≤ +125°C 90 dB
Input Capacitance
Differential Mode CDM 2.5 pF
Common Mode CCM 7 pF
MATCHING CHARACTERISTICS
Offset Voltage TA = 25°C 100 300 µV
OUTPUT CHARACTERISTICS
Output Voltage High VOH RL = 10 kΩ to GND 14.92 14.94 V
−40°C ≤ TA ≤ +125°C 14.90 V
RL = 2 kΩ to GND 14.0 14.3 V
−40°C ≤ T
A
≤ +125°C
12.0
V
Output Voltage Low VOL RL = 10 kΩ to GND −14.96 −14.80 V
−40°C ≤ TA ≤ +125°C −14.75 V
RL = 2 kΩ to GND −14.75 −14.65 V
−40°C ≤ TA ≤ +125°C −14.0 V
Short-Circuit Limit ISC Source/sink ±10 mA
Closed-Loop Impedance ZOUT f = 100 kHz, AV = 1 40 Ω
POWER SUPPLY
Power Supply Rejection Ratio PSRR VSY = 3 V to 36 V 100 dB
−40°C ≤ TA ≤ +125°C 90 dB
Supply Current per Amplifier
I
SY
V
O
= V
SY
/2
60
75
µA
−40°C ≤ TA ≤ +125°C 100 µA
DYNAMIC PERFORMANCE
Slew Rate SR RL = 100 kΩ, CL = 30 pF 0.4 V/µs
Settling Time
t
S
To 0.1%, 10 V step
23.4
µs
Gain Bandwidth Product GBP VIN = 5 mV p-p, RL = 10 kΩ, AV = 100 786 kHz
Unity-Gain Crossover UGC VIN = 5 mV p-p, RL = 10 kΩ, AV = 1 800 kHz
Phase Margin ΦM 60 Degrees
−3 dB Closed-Loop Bandwidth −3 dB AV = 1, VIN = 5 mV p-p 1520 kHz
Channel Separation CS f = 1 kHz 100 dB
ADA4096-2 Data Sheet
Rev. A | Page 6 of 20
Parameter Symbol Test Conditions/Comments Min Typ Max Unit
NOISE PERFORMANCE
Voltage Noise en p-p 0.1 Hz to 10 Hz 0.7 µV p-p
Voltage Noise Density en f = 1 kHz 27 nV/√Hz
Current Noise Density in f = 1 kHz 0.2 pA/√Hz
Data Sheet ADA4096-2
Rev. A | Page 7 of 20
ABSOLUTE MAXIMUM RATINGS
Table 5.
Parameter Rating
Supply Voltage 36 V
Input Voltage
Operating Condition −V ≤ VIN ≤ +V
Overvoltage Condition1 (−V) − 32 V ≤ VIN ≤ (+V) + 32 V
Differential Input Voltage
2
±V
SY
Input Current ±5 mA
Output Short-Circuit Duration to
GND
Indefinite
Storage Temperature Range −65°C to +150°C
Operating Temperature Range −40°C to +125°C
Junction Temperature Range
−65°C to +150°C
Lead Temperature (Soldering,
60 sec)
300°C
1 Performance not guaranteed during overvoltage conditions.
2 Limit the input current to ±5 mA.
Stresses above those listed under Absolute Maximum Ratings
may cause permanent damage to the device. This is a stress
rating only; functional operation of the device at these or any
other conditions above those indicated in the operational
section of this specification is not implied. Exposure to absolute
maximum rating conditions for extended periods may affect
device reliability.
THERMAL RESISTANCE
θJA is specified for the device soldered on a 4-layer JEDEC standard
printed circuit board (PCB) with zero airflow. The exposed pad
is soldered to the application board.
Table 6. Thermal Resistance
Package Type
θ
JA
θ
JC
Unit
8-Lead MSOP (RM-8) 142 45 °C/W
8-Lead LFCSP (CP-8-10)
76
43
°C/W
ESD CAUTION
ADA4096-2 Data Sheet
Rev. A | Page 8 of 20
TYPICAL PERFORMANCE CHARACTERISTICS
TA = 25°C, unless otherwise noted.
±1.5 V CHARACTERISTICS
180
0
20
40
60
80
100
120
140
160
–200
–175
–150
–125
–100
–75
–50
–25
0
25
50
75
100
125
150
175
200
MORE
NUMBER OF AM P LI FIE RS
V
OS
(µV)
ADA4096-2
V
SY
= ±1. 5V
T
A
= 25° C
09241-003
Figure 3. Input Offset Voltage Distribution
25
20
15
10
5
0–2.5 –2.0 –1.5 –1.0 –0.5 00.5 1.0 1.5 2.0 2.5
NUMBER OF AM P LI FIE RS
TCV
OS
(µV/°C)
ADA4096-2
V
SY
= ±1. 5V
T
A
= –40° C TO + 125°C
09241-004
Figure 4. Offset Voltage Drift Distribution
30
–1.5 –1.0 –0.5 00.5 1.0 1.5
–40
–30
–20
–10
0
10
20
I
B
(n A)
V
CM
(V)
ADA4096-2
V
SY
= ±1. 5V
T
A
= 0° C
T
A
= +25°C
T
A
= +85°C
T
A
= +125°C
T
A
= –40° C
09241-005
Figure 5. Input Bias Current vs. VCM and Temperature
10k
1k
100
0.001 0.01 0.1 110 100
10
1
V
OUT
TO RAIL (mV)
LOAD CURRENT ( mA)
ADA4096-2
V
SY
= ±1. 5V
T
A
= 25° C
SOURCING SINKING
09241-006
Figure 6. Dropout Voltage vs. Load Current
140
120
100
80
60
40
20
0
–20
–40
100 1k 10k 100k 1M 10M
–60
200
150
100
50
0
–50
–100
GAIN (d B)
PHASE ( Degrees)
FRE QUENCY ( Hz )
ADA4096-2
V
SY
= ±1. 5V
T
A
= 25° C
GAIN
PHASE
09241-007
Figure 7. Open-Loop Gain and Phase vs. Frequency
50
40
30
20
10
0
–10
–20
–30
–40
10 100 1k 10k 100k 1M 10M
–50
CLOSED-LOOP GAIN (dB)
FRE QUENCY ( Hz )
ADA4096-2
VSY = ± 1.5V
TA = 25° C
G = + 100
G = +10
G = +1
09241-008
Figure 8. Closed-Loop Gain vs. Frequency
Data Sheet ADA4096-2
Rev. A | Page 9 of 20
10k
1k
100
10
1
0.1
10 100 1k 10k 100k 1M 10M
0.01
ZOUT (Ω)
FRE QUENCY ( Hz )
ADA4096-2
VSY = ± 1.5V
TA = 25° C
G = + 100
G = +10
G = +1
09241-009
Figure 9. Output Impedance vs. Frequency
120
100
80
60
40
20
0
10 100 1k 10k 100k 1M 10M
–20
PSRR ( dB)
FRE QUENCY ( Hz )
ADA4096-2
VSY = ± 1.5V
TA = 25° C
PSRR–
PSRR+
09241-052
Figure 10. PSRR vs. Frequency
2.0
020 40 60 80 100 120
–2.0
–1.5
–1.0
–0.5
0
0.5
1.0
1.5
VOUT (V)
TIME (µs)
ADA4096-2
VSY = ± 1.5V
TA = 25° C
RL = 10kΩ
CL = 100pF
G = +1
09241-010
Figure 11. Large Signal Transient Response
0.08
0 5 10 15 20 25 30
–0.10
–0.08
–0.06
–0.02
–0.04
0
0.02
0.04
0.06
VOUT (V)
TIME (µs)
ADA4096-2
VSY = ± 1.5V
TA = 25° C
RL = 10kΩ
CL = 100pF
G = +1
09241-011
Figure 12. Small Signal Transient Response
1.6
1.4
1.2
1.0
0.8
0.6
0.4
0.2
020 40 60 80 100
0
V
OUT
(V)
TIME (µs)
ADA4096-2
V
SY
= ±1. 5V
T
A
= 25° C
R
F
= 10kΩ
R
S
= 100Ω
09241-055
Figure 13. Positive Overload Recovery
0.2
020 40 60 80 100
–1.6
–1.4
–1.2
–1.0
–0.8
–0.6
–0.4
–0.2
0
V
OUT
(V)
TIME (µs)
ADA4096-2
V
SY
= ±1. 5V
T
A
= 25° C
R
F
= 10kΩ
R
S
= 100Ω
09241-056
Figure 14. Negative Overload Recovery
ADA4096-2 Data Sheet
Rev. A | Page 10 of 20
±5 V CHARACTERISTICS
250
200
150
100
50
0
–200
–175
–150
–125
–100
–75
–50
–25
0
25
50
75
100
125
150
175
200
MORE
NUMBER OF AM P LI FIE RS
V
OS
(µV)
ADA4096-2
V
SY
= ±5V
T
A
= 25° C
09241-015
Figure 15. Input Offset Voltage Distribution
40
20
25
30
35
15
10
5
0–2.5 –2.0 –1.5 –1.0 –0.5 00.5 1.0 1.5 2.0 2.5
NUMBER OF AM P LI FIE RS
TCV
OS
(µV/°C)
ADA4096-2
V
SY
= ±5V
T
A
= –40° C TO + 125°C
09241-016
Figure 16. Offset Voltage Drift Distribution
30
–5 –4 –3 –2 –1 0 1 2 3 4 5
–50
–40
–30
–20
–10
0
10
20
I
B
(n A)
V
CM
(V)
ADA4096-2
V
SY
= ±5V
T
A
= 0° C
T
A
= +25°C
T
A
= +85°C
T
A
= +125°C
T
A
= –40° C
09241-050
Figure 17. Input Bias Current vs. VCM and Temperature
10k
1k
100
0.001 0.01 0.1 110 100
10
1
V
OUT
TO RAIL (mV)
LOAD CURRENT ( mA)
ADA4096-2
V
SY
= ±5V
T
A
= 25° C
SOURCING
SINKING
09241-023
Figure 18. Dropout Voltage vs. Load Current
140
120
100
80
60
40
20
0
–20
–40
100 1k 10k 100k 1M 10M
–60
200
150
100
50
0
–50
–100
GAIN (d B)
PHASE ( Degrees)
FRE QUENCY ( Hz )
ADA4096-2
V
SY
= ±5V
T
A
= 25° C
GAIN
PHASE
09241-020
Figure 19. Open-Loop Gain and Phase vs. Frequency
50
40
30
20
10
0
–10
–20
–30
–40
10 100 1k 10k 100k 1M 10M
–50
CLOSED-LOOP GAIN (dB)
FRE QUENCY ( Hz )
ADA4096-2
VSY = ± 5V
TA = 25° C
G = + 100
G = +10
G = +1
09241-024
Figure 20. Closed-Loop Gain vs. Frequency
Data Sheet ADA4096-2
Rev. A | Page 11 of 20
10k
1k
100
10
1
0.1
10 100 1k 10k 100k 1M 10M
0.01
ZOUT (Ω)
FRE QUENCY ( Hz )
ADA4096-2
VSY = ± 5V
TA = 25° C
G = + 100
G = +10
G = +1
09241-021
Figure 21. Output Impedance vs. Frequency
140
120
100
80
60
40
20
0
10 100 1k 10k 100k 1M 10M
–20
PSRR ( dB)
FRE QUENCY ( Hz )
ADA4096-2
VSY = ± 5V
TA = 25° C
PSRR–
PSRR+
09241-053
Figure 22. PSRR vs. Frequency
6
050 100 150 200 250 300 350 400
–6
–4
–2
0
2
4
VOUT (V)
TIME (µs)
ADA4096-2
VSY = ± 5V
TA = 25° C
RL = 10kΩ
CL = 100pF
G = +1
09241-017
Figure 23. Large Signal Transient Response
0.08
0 5 10 15 20 25 30
–0.10
–0.08
–0.06
–0.02
–0.04
0
0.02
0.04
0.06
VOUT (V)
TIME (µs)
ADA4096-2
VSY = ± 5V
TA = 25° C
RL = 10kΩ
CL = 100pF
G = +1
09241-018
Figure 24. Small Signal Transient Response
6
5
4
3
2
1
020 40 60 80 100
0
V
OUT
(V)
TIME (µs)
ADA4096-2
V
SY
= ±5V
T
A
= 25° C
R
F
= 10kΩ
R
S
= 100Ω
09241-057
Figure 25. Positive Overload Recovery
1
0
–1
–2
–3
–4
020 40 60 80 100
–5
V
OUT
(V)
TIME (µs)
ADA4096-2
V
SY
= ±5V
T
A
= 25° C
R
F
= 10kΩ
R
S
= 100Ω
09241-058
Figure 26. Negative Overload Recovery
ADA4096-2 Data Sheet
Rev. A | Page 12 of 20
±15 V CHARACTERISTICS
250
200
150
100
50
0
–200
–175
–150
–125
–100
–75
–50
–25
0
25
50
75
100
125
150
175
200
MORE
NUMBER OF AM P LI FIE RS
V
OS
(µV)
ADA4096-2
V
SY
= ±15V
T
A
= 25° C
09241-027
Figure 27. Input Offset Voltage Distribution
35
20
25
30
15
10
5
0–2.5 –2.0 –1.5 –1.0 –0.5 00.5 1.0 1.5 2.0 2.5
NUMBER OF AM P LI FIE RS
TCV
OS
(µV/°C)
ADA4096-2
V
SY
= ±15V
T
A
= –40° C TO + 125°C
09241-028
Figure 28. Offset Voltage Drift Distribution
40
30
–15 –10 –5 0 5 10 15
–60
–50
–40
–30
–20
–10
0
10
20
I
B
(n A)
V
CM
(V)
ADA4096-2
V
SY
= ±15V
T
A
= 0° C
T
A
= +25°C
T
A
= +85°C T
A
= +125°C
T
A
= –40° C
09241-051
Figure 29. Input Bias Current vs. VCM and Temperature
10k
1k
100
0.001 0.01 0.1 110 100
10
1
V
OUT
TO RAIL (mV)
LOAD CURRENT ( mA)
ADA4096-2
V
SY
= ±15V
T
A
= 25° C
SOURCING
SINKING
09241-034
Figure 30. Dropout Voltage vs. Load Current
140
120
100
80
60
40
20
0
–20
–40
100 1k 10k 100k 1M 10M
–60
200
150
100
50
0
–50
–100
GAIN (d B)
PHASE ( Degrees)
FRE QUENCY ( Hz )
ADA4096-2
V
SY
= ±15V
T
A
= 25° C
GAIN
PHASE
09241-030
Figure 31. Open-Loop Gain and Phase vs. Frequency
50
40
30
20
10
0
–10
–20
–30
10 100 1k 10k 100k 1M 10M
–40
CLOSED-LOOP GAIN (dB)
FRE QUENCY ( Hz )
ADA4096-2
VSY = ± 15V
TA = 25° C
G = + 100
G = +10
G = +1
09241-036
Figure 32. Closed-Loop Gain vs. Frequency
Data Sheet ADA4096-2
Rev. A | Page 13 of 20
10k
1k
100
10
1
0.1
10 100 1k 10k 100k 1M 10M
0.01
ZOUT (Ω)
FRE QUENCY ( Hz )
ADA4096-2
VSY = ± 15V
TA = 25° C
G = + 100
G = +10
G = +1
09241-035
Figure 33. Output Impedance vs. Frequency
120
100
80
60
40
20
0
10 100 1k 10k 100k 1M 10M
–20
PSRR ( dB)
FRE QUENCY ( Hz )
ADA4096-2
VSY = ± 15V
TA = 25° C
PSRR–
PSRR+
09241-054
Figure 34. PSRR vs. Frequency
15
050 100 150 200 250 300 350 400
–15
–10
–5
0
5
10
VOUT (V)
TIME (µs)
ADA4096-2
VSY = ± 15V
TA = 25° C
RL = 10kΩ
CL = 100pF
G = +1
09241-031
Figure 35. Large Signal Transient Response
0.08
0 5 10 15 20 25 30
–0.10
–0.08
–0.06
–0.02
–0.04
0
0.02
0.04
0.06
VOUT (V)
TIME (µs)
ADA4096-2
VSY = ± 15V
TA = 25° C
RL = 10kΩ
CL = 100pF
G = +1
09241-032
Figure 36. Small Signal Transient Response
16
12
14
10
8
6
4
2
020 40 60 80 100
0
V
OUT
(V)
TIME (µs)
ADA4096-2
V
SY
= ±15V
T
A
= 25° C
R
F
= 10kΩ
R
S
= 100Ω
09241-059
Figure 37. Positive Overload Recovery
0
–4
–2
–6
–8
–10
–12
–14
020 40 60 80 100
–16
V
OUT
(V)
TIME (µs)
ADA4096-2
V
SY
= ±15V
T
A
= 25° C
R
F
= 10kΩ
R
S
= 100Ω
09241-060
Figure 38. Negative Overload Recovery
ADA4096-2 Data Sheet
Rev. A | Page 14 of 20
COMPARATIVE VOLTAGE AND VARIABLE VOLTAGE GRAPHS
0.5
0.4
0.3
0.2
0.1
0
–0.1
–0.2
–0.3
–10 –8 –6 –4 –2 0 2 4 6 8 10
–0.4
NOISE (µV)
TIME (s)
ADA4096-2
VSY = ± 15V
TA = 25° C
09241-039
Figure 39. Input Voltage Noise, 0.1 Hz to 10 Hz Bandwidth
–80
20 100 1k 10k 50k
–140
–130
–120
–110
–100
–90
CHANNEL S E P ARATION (dB)
FRE QUENCY ( Hz )
ADA4096-2
V
SY
= ±15V
T
A
= 25° C
09241-040
2kΩ
10kΩ
1kΩ
V
IN
=
10V p - p
Figure 40. Channel Separation vs. Frequency
120
110
100
90
80
70
60
50
40
30
100 1k 10k 100k 1M 10M
20
CMRR (dB)
FRE QUENCY ( Hz )
ADA4096-2
T
A
= 25° C
V
SY
= ±15V
V
SY
= ±1. 5V
V
SY
= ±5V
09241-041
Figure 41. CMRR vs. Frequency
70
60
50
40
30
20
10
03632282420161284
0
SUPPLY CURRENT PER AMPLIFIER (µA)
SUPPLY VOLT AGE (V)
ADA4096-2
TA = 25° C
RL = ∞
09241-043
Figure 42. Supply Current vs. Supply Voltage
100
0.1 1k100101
10
e
n
(nV/ Hz)
FRE QUENCY ( Hz )
ADA4096-2
V
SY
= ±15V
T
A
= 25° C
09241-044
Figure 43. Voltage Noise Density
50
0.01 10.1
0
10
20
30
40
OVERSHOOT (%)
C
LOAD
(nF)
ADA4096-2
V
SY
= ±15V
T
A
= 25° C
R
L
= 2kΩ
G = +1
V
IN
= 100mV p - p
09241-100
OS–
OS+
Figure 44. Overshoot vs. Load Capacitance
Data Sheet ADA4096-2
Rev. A | Page 15 of 20
THEORY OF OPERATION
INPUT STAGE
09241-045
R6
V
CC
+IN
–IN
V
EE
OVP
OVP
OUT
R7
D10 Q20
Q19
D11
Q16
D7Q15
D8
Q14
Q17
Q10
Q13
Q18D9
×1
I3
R2
R1
R3 R4
C2
Q12
D6
R5
Q9
Q11
Q6
Q8Q7
Q5
Q4
Q3
Q1 Q2
I2
I1
C1
D3
D1
D4
D2
Figure 45. Simplified Schematic
Figure 45 shows a simplified schematic of the ADA4096-2. The
input stage comprises two differential pairs (Q1 to Q4 and Q5
to Q8) operating in parallel. When the input common-mode
voltage approaches VCC − 1.5 V, Q1 to Q4 shut down as I1 reaches
its minimum voltage compliance. Conversely, when the input
common-mode voltage approaches VEE + 1.5 V, Q 5 to Q8 shut
down as I2 reaches its minimum voltage compliance. This
topology allows for maximum input dynamic range because the
amplifier can function with its inputs at 200 mV outside the rail
(at room temperature).
As with any rail-to-rail input amplifier, VOS mismatch between
the two input pairs determines the CMRR of the amplifier. If
the input common-mode voltage range is kept within 1.5 V of
each rail, transitions between the input pairs are avoided, thus
improving the CMRR by approximately 10 dB (see Table 3 and
Table 4).
PHASE INVERSION
Some single-supply amplifiers exhibit phase inversion when
the input signal extends beyond the common-mode voltage
range of the amplifier. When the input devices become saturated,
the inverting and noninverting inputs exchange functions,
causing the output to move in the opposing direction.
Although phase inversion persists for only as long as the inputs are
saturated, it can be detrimental to applications where the amplifier
is part of a closed-loop system. The ADA4096-2 is free from phase
inversion over the entire common-mode voltage range, as well as
the overvoltage protected range stated in the Absolute Maximum
Ratings section, Table 5. Figure 46 shows the ADA4096-2 in a
unity-gain configuration with the input signal at ±40 V and the
amplifier supplies at ±10 V.
CH1 10.0V CH2 10.0V M2.00ms A CH1 –3.6V
T 34.20%
1
T
09241-046
Figure 46. No Phase Reversal
ADA4096-2 Data Sheet
Rev. A | Page 16 of 20
INPUT OVERVOLTAGE PROTECTION
The ADA4096-2 inputs are protected from input voltage
excursions up to 32 V outside each rail. This feature is of
particular importance in applications with power supply
sequencing issues that could cause the signal source to be active
before the supplies to the amplifier.
Figure 47 shows the input current limiting capability of the
ADA4096-2 (green curves) compared to using a 5 kΩ series
resistor (red curves).
7
–48 –40
–32 –24 –16 –8 0 8 16 24 32 40 48
–7
–6
–5
–4
–3
–2
–1
0
1
2
3
4
5
6
INP UT BIAS CURRE NT (mA)
V
IN
(V)
V
EE
= –15V
V
EE
= 0V
V
CC
= +15V
LOW RDS
ON
SERIES FET
5kΩ SERIES RESISTOR
09241-047
Figure 47. Input Current Limiting Capability
Figure 47 was generated with the ADA4096-2 in a buffer configu-
ration with the supplies connected to GND (or ±15 V) and the
positive input swept until it exceeds the supplies by 32 V. In general,
input current is limited to 1 mA during positive overvoltage con-
ditions and 200 μA during negative undervoltage conditions. For
example, at an overvoltage of 20 V, t he ADA4096-2 input current is
limited to 1 mA, providing a current limit equivalent to a series
20 kΩ resistor. Figure 47 also shows that the current limiting
circuitry is active whether the amplifier is powered or not.
Note that Figure 47 represents input protection under abnormal
conditions only. The correct amplifier operation input voltage
range (IVR) is specified in Table 2 to Table 4.
Data Sheet ADA4096-2
Rev. A | Page 17 of 20
COMPARATOR OPERATION
Although op amps are quite different from comparators,
occasionally an unused section of a dual or a quad op amp
may be pressed into service as a comparator; however, this is
not recommended for any rail-to-rail output op amps. For rail-
to-rail output op amps, the output stage is generally a ratioed
current mirror with bipolar or MOSFET transistors. With the part
operating open loop, the second stage increases the current drive
to the ratioed mirror to close the loop, but it cannot, which results
in an increase in supply current. With the op amp configured as
a comparator, the supply current can be significantly higher (see
Figure 48).
500
400
300
200
100
03632282420161284
0
SUPPLY CURRENT PER AMPLIFIER (µA)
SUPPLY VOLT AGE (V)
VOUT = HIGH
VOUT = LOW
BUFFER
09241-048
Figure 48. Comparator Supply Current
ADA4096-2 Data Sheet
Rev. A | Page 18 of 20
OUTLINE DIMENSIONS
COMPLIANT TO JEDEC STANDARDS MO-187-AA
6°
0°
0.80
0.55
0.40
4
8
1
5
0.65 BSC
0.40
0.25
1.10 MAX
3.20
3.00
2.80
COPLANARITY
0.10
0.23
0.09
3.20
3.00
2.80
5.15
4.90
4.65
PIN 1
IDENTIFIER
15° MAX
0.95
0.85
0.75
0.15
0.05
10-07-2009-B
Figure 49. 8-Lead Mini Small Outline Package [MSOP]
(RM-8)
Dimensions shown in millimeters
1.70
1.60
1.50
0.425
0.350
0.275
TOP VIEW
8
1
5
4
0.30
0.25
0.20
BOTTO M VIEW
PIN 1 INDEX
AREA
2.00
BSC SQ
SEATING
PLANE
0.60
0.55
0.50
1.10
1.00
0.90
0.20 RE F
0.175 RE F
0.05 M AX
0.02 NOM
0.50 BS C
EXPOSED
PAD
PIN 1
INDICATOR
(R 0.15)
FOR PROPE R CONNECTI ON OF
THE EXPOSED PAD, REFER TO
THE PIN CONFIG URA TI ON AND
FUNCTIO N DESCRIP TI ONS
SECT IO N OF THI S DATA SHEET.
07-11-2011-B
Figure 50. 8-Lead Lead Frame Chip Scale Package [LFCSP_UD]
2 mm × 2 mm Body, Ultra Thin, Dual Lead
(CP-8-10)
Dimensions shown in millimeters
Data Sheet ADA4096-2
Rev. A | Page 19 of 20
ORDERING GUIDE
Model1, 2
Temperature
Range Package Description Package Option Branding
ADA4096-2ARMZ −40°C to +125°C 8-Lead Mini Small Outline Package [MSOP] RM-8 A2T
ADA4096-2ARMZ-R7 −40°C to +125°C 8-Lead Mini Small Outline Package [MSOP] RM-8 A2T
ADA4096-2ARMZ-RL −40°C to +125°C 8-Lead Mini Small Outline Package [MSOP] RM-8 A2T
ADA4096-2ACPZ-R7 −40°C to +125°C 8-Lead Frame Chip Scale Package [LFCSP_UD] CP-8-10 A4
ADA4096-2ACPZ-RL −40°C to +125°C 8-Lead Frame Chip Scale Package [LFCSP_UD] CP-8-10 A4
ADA4096-2WARMZ-R7 −40°C to +125°C 8-Lead Mini Small Outline Package [MSOP] RM-8 A2T
ADA4096-2WARMZ-RL −40°C to +125°C 8-Lead Mini Small Outline Package [MSOP] RM-8 A2T
1 Z = RoHS Compliant Part.
2 W = Qualified for Automotive Applications.
AUTOMOTIVE PRODUCTS
The ADA4096-2W models are available with controlled manufacturing to support the quality and reliability requirements of automotive
applications. Note that these automotive models may have specifications that differ from the commercial models; therefore, designers
should review the Specifications section of this data sheet carefully. Only the automotive grade products shown are available for use in
automotive applications. Contact your local Analog Devices account representative for specific product ordering information and to
obtain the specific Automotive Reliability reports for these models.
ADA4096-2 Data Sheet
Rev. A | Page 20 of 20
NOTES
©2011–2012 Analog Devices, Inc. All rights reserved. Trademarks and
registered trademarks are the property of their respective owners.
D09241-0-3/12(A)