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®
INA2132
INA2132
Dual, Low Power, Single-Supply
DIFFERENCE AMPLIFIER
FEATURES
q DESIGNED FOR LOW COST
q LOW QUIESCENT CURRENT:
160µA per Amplifier
q WIDE POWER SUPPLY RANGE:
Single Supply: 2.7V to 36V
Dual Supplies: ±1.35V to ±18V
q LOW GAIN ERROR: ±0.05% max
q LOW NONLINEARITY: 0.001% max
q HIGH CMRR: 90dB
q HIGHLY VERSATILE CIRCUIT
q EASY TO USE
q SO-14 PACKAGE
APPLICATIONS
q DIFFERENTIAL INPUT AMPLIFIER
q INSTRUMENTATION AMPLIFIER
BUILDING BLOCK
q UNITY-GAIN INVERTING AMPLIFIER
q G = 1/2 AMPLIFIER
q G = 2 AMPLIFIER
q SUMMING AMPLIFIER
q DIFFERENTIAL CURRENT RECEIVER
q VOLTAGE-CONTROLLED CURRENT SOURCE
q BATTERY-POWERED SYSTEMS
q GROUND LOOP ELIMINATOR
DESCRIPTION
The INA2132 is a dual low power, unity-gain differ-
ence amplifier offering excellent value at very low
cost. Each channel consists of a precision op amp with
a laser-trimmed precision resistor network, providing
accurate gain and high common-mode rejection. Ex-
cellent TCR tracking of the resistors maintains gain
accuracy and common-mode rejection over tempera-
ture. The internal op amp’s common-mode range
extends to the negative supply—ideal for single-sup-
ply applications.
The difference amplifier is the foundation of many
commonly used circuits. The INA2132 provides this
circuit function without using an expensive precision
resistor network. The INA2132 is available in the
SO-14 surface-mount package and is specified for
operation over the extended industrial temperature
range, –40°C to +85°C.
A single version of this product with similar specifi-
cations is also available. See the INA132 data sheet
for details.
V+
11
–In A 2
40k
40k
12 Sense A
+In A 3
40k
–In B 6
40k
A
40k
40k
13 Out A
14 Ref A
10 Sense B
B 9 Out B
+In B 5
40k
40k
8 Ref B
INA2132
4
V–
International Airport Industrial Park • Mailing Address: PO Box 11400, Tucson, AZ 85734 • Street Address: 6730 S. Tucson Blvd., Tucson, AZ 85706 • Tel: (520) 746-1111
Twx: 910-952-1111 • Internet: http://www.burr-brown.com/ • Cable: BBRCORP • Telex: 066-6491 • FAX: (520) 889-1510 • Immediate Product Info: (800) 548-6132
©1998 Burr-Brown Corporation
PDS-1488A
Printed in U.S.A. December, 1998

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SPECIFICATIONS: VS = ±15V
At TA = +25°C, RL = 10kconnected to ground, and reference pins connected to ground unless otherwise noted.
INA2132U
INA2132UA
PARAMETER
CONDITIONS
OFFSET VOLTAGE(1)
Initial
vs Temperature
vs Power Supply
vs Time
Channel Separation(2)
VOS
dVOS /dT
PSRR
RTO
VS = ±1.35V to ±18V
dc
INPUT IMPEDANCE(3)
Differential
Common-Mode
INPUT VOLTAGE RANGE
Common-Mode Voltage Range(4)
Common-Mode Rejection Ratio CMRR
OUTPUT VOLTAGE NOISE(5)
f = 0.1Hz to 10Hz
f = 1kHz
VO = 0V
VCM = –30V to 28V, RS = 0
RTO
GAIN
Initial
Error
vs Temperature
Nonlinearity
OUTPUT
Voltage, Positive
Negative
Positive
Negative
Current Limit, per Amplifier
Capacitive Load (stable operation)
VO = –14V to 13.5V
VO = –14V to 13.5V
RL = 100kto Ground
RL = 100kto Ground
RL = 10kto Ground
RL = 10kto Ground
Continuous to Common
FREQUENCY RESPONSE
Small-Signal Bandwidth
Slew Rate
Settling Time: 0.1%
0.01%
Overload Recovery Time
SR
–3dB
VO = 10V Step
VO = 10V Step
50% Overdrive
POWER SUPPLY
Rated Voltage
Voltage Range
VS
Quiescent Current (per amplifier) IQ
TEMPERATURE RANGE
Specification
Operation
Storage
Thermal Resistance
θJA
IO = 0mA
T Specifications the same as INA2132U.
MIN
TYP
MAX
±75
±1
±5
0.3
0.04
±250
±5
±30
80
40
2 (V–)
80
2 (V+) –2
90
1.6
65
1
±0.01
±1
±0.0001
±0.05
±10
±0.001
(V+) –1 (V+) –0.8
(V–) +0.5 (V–) +0.15
(V+) –1.5 (V+) –0.8
(V–) +1 (V–) +0.25
±12
10
300
0.1
85
88
7
±1.35
±15
±160
±18
±185
–40 +85
–55 +125
–55 +125
100
MIN
T
74
T
T
T
T
T
T
T
T
TYP
T
T
T
T
T
T
T
T
T
T
T
T
T
T
T
T
T
T
T
T
T
T
T
T
T
T
T
MAX
UNITS
±500
±10
T
µV
µV/°C
µV/V
µV/mo
µV/V
k
k
TV
dB
µVp-p
nV/Hz
±0.1
T
±0.002
V/V
%
ppm/°C
% of FS
V
V
V
V
mA
nF
kHz
V/µs
µs
µs
µs
V
TV
T µA
T °C
T °C
T °C
°C/W
NOTES: (1) Includes effects of amplifier’s input bias and offset currents. (2) Measured output offset change of one channel for a full-scale swing (VO = –14V
to 13.5V) on the opposite channel. (3) 40kresistors are ratio matched but have ±20% absolute value. (4) 2 (V–) –VREF < VCM < 2 ((V+) –1) –VREF. For more detail,
see Applications Information section. (5) Includes effects of amplifier’s input current noise and thermal noise contribution of resistor network.
The information provided herein is believed to be reliable; however, BURR-BROWN assumes no responsibility for inaccuracies or omissions. BURR-BROWN assumes
no responsibility for the use of this information, and all use of such information shall be entirely at the user’s own risk. Prices and specifications are subject to change
without notice. No patent rights or licenses to any of the circuits described herein are implied or granted to any third party. BURR-BROWN does not authorize or warrant
any BURR-BROWN product for use in life support devices and/or systems.
®
INA2132
2

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SPECIFICATIONS: VS = +5V Single Supply
At TA = +25°C, RL = 10kconnected to VS/2, and reference pin connected to VS/2, unless otherwise noted.
INA2132U
INA2132UA
PARAMETER
CONDITIONS
MIN
TYP
MAX
MIN
TYP
MAX
UNITS
OFFSET VOLTAGE(1)
RTO
Initial
vs Temperature
VOS
dVOS /dT
±150
±2
±500
T ±750
µV
T µV/°C
INPUT VOLTAGE RANGE
Common-Mode Voltage Range(2)
–2.5
+5.5
T
TV
Common-Mode Rejection CMRR VCM = –2.5V to +5.5V, RS = 0
80
90
74 T
dB
OUTPUT
Voltage, Positive
Negative
Positive
Negative
RL = 100kto Ground
RL = 100kto Ground
RL = 10kto Ground
RL = 10kto Ground
(V+) –1
+0.25
(V+) –1
+0.25
(V+) –0.75
+0.06
(V+) –0.8
+0.12
TT
TT
TT
TT
V
V
V
V
POWER SUPPLY
Rated Voltage
Voltage Range
VS
+5 T
+2.7
+36 T
T
V
V
Quiescent Current
IQ IO = 0mA
±155
±185
TT
µA
T Specifications the same as INA2132U.
NOTE: (1) Includes effects of amplifier’s input bias and offset currents. (2) 2 (V–) –VREF < VCM < 2 ((V+) –1) –VREF. For more detail, see Applications Information
section.
PIN CONFIGURATION
ABSOLUTE MAXIMUM RATINGS
Top View
SO-14
NC 1
–In A 2
+In A 3
V– 4
+In B 5
–In B 6
NC 7
14 Ref A
13 Out A
A
12 Sense A
11 V+
10 Sense B
B
9 Out B
8 Ref B
NC = No Connection
Supply Voltage, V+ to V– .................................................................... 36V
Input Voltage Range .......................................................................... ±80V
Output Short-Circuit (to ground) .............................................. Continuous
Operating Temperature .................................................. –55°C to +125°C
Storage Temperature ..................................................... –55°C to +125°C
Junction Temperature .................................................................... +150°C
Lead Temperature (soldering, 10s) ............................................... +300°C
ELECTROSTATIC
DISCHARGE SENSITIVITY
This integrated circuit can be damaged by ESD. Burr-Brown
recommends that all integrated circuits be handled with ap-
propriate precautions. Failure to observe proper handling and
installation procedures can cause damage.
ESD damage can range from subtle performance degradation
to complete device failure. Precision integrated circuits may
be more susceptible to damage because very small parametric
changes could cause the device not to meet its published
specifications.
PACKAGE/ORDERING INFORMATION
PRODUCT
INA2132U
"
INA2132UA
"
PACKAGE
SO-14 Surface-Mount
"
SO-14 Surface-Mount
"
PACKAGE
DRAWING
NUMBER(1)
235
"
235
"
SPECIFIED
TEMPERATURE
RANGE
–40°C to +85°C
"
–40°C to +85°C
"
PACKAGE
MARKING
INA2132U
"
INA2132UA
"
ORDERING
NUMBER(2)
INA2132U
INA2132U/2K5
INA2132UA
INA2132UA/2K5
TRANSPORT
MEDIA
Rails
Tape and Reel
Rails
Tape and Reel
NOTES: (1) For detailed drawing and dimension table, please see end of data sheet, or Appendix C of Burr-Brown IC Data Book. (2) Models with a slash (/) are
available only in Tape and Reel in the quantities indicated (e.g., /2K5 indicates 2500 devices per reel). Ordering 2500 pieces of “INA2132U/2K5” will get a single
2500-piece Tape and Reel. For detailed Tape and Reel mechanical information, refer to Appendix B of Burr-Brown IC Data Book.
®
3 INA2132

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TYPICAL PERFORMANCE CURVES
At TA = +25°C and VS = ±15V, unless otherwise noted.
GAIN vs FREQUENCY
20
VS = ±15V or +5V
CL = 100pF
RL = 10k
0
–20 CL = 1000pF
RL =
–40
–60
10k
100k
Frequency (Hz)
1M
COMMON-MODE REJECTION vs FREQUENCY
100
90
80 VS = ±15V
70 VS = +5V
60
50
40
30
10 100 1k 10k 100k 1M
Frequency (Hz)
POWER SUPPLY REJECTION vs FREQUENCY
120
+PSRR
100 VS = ±15V
80
VS = +5V
60
40 –PSRR
20
0
10 100 1k 10k 100k 1M
Frequency (Hz)
150
140
130
120
110
100
90
80
70
60
50
0.1
CHANNEL SEPARATION vs FREQUENCY
1 10 100 1k 10k 100k 1M
Frequency (Hz)
V+
(V+) –0.5
(V+) –1
(V+) –1.5
(V+) –2
(V+) –2.5
(V–) +2.5
(V–) +2
(V–) +1.5
(V–) +1
(V–) +0.5
V–
0
OUTPUT VOLTAGE SWING vs OUTPUT CURRENT
125°C
85°C
25°C
–55°C
–40°C
125°C
–55°C
85°C
–40°C
25°C
±2 ±4 ±6 ±8
Output Current (mA)
±10
QUIESCENT and SHORT-CIRCUIT CURRENT
vs TEMPERATURE
210 13
200 ±ISC
190
12
11
180 10
170 IQ 9
160 8
150
–75 –50 –25
0 25 50
Temperature (°C)
7
75 100 125
®
INA2132
4

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TYPICAL PERFORMANCE CURVES (CONT)
At TA = +25°C and VS = ±15V, unless otherwise noted.
SLEW RATE vs TEMPERATURE
0.18
0.16
0.14
0.12
0.10
0.08
0.06
–75 –50 –25
0 25 50
Temperature (°C)
75 100 125
SMALL-SIGNAL STEP RESPONSE
CL = 200pF
10µs/div
SMALL-SIGNAL STEP RESPONSE
CL = 1000pF
LARGE-SIGNAL STEP RESPONSE
10µs/div
100µs/div
SETTLING TIME vs LOAD CAPACITANCE
100
10V Step
96
92 0.01%
88
84
80
100pF
0.1%
1000pF
Load Capacitance
10,000pF
INPUT COMMON-MODE VOLTAGE RANGE
vs OUTPUT VOLTAGE
40
VS = ±15V
30
20
VS = +5V
10
0
–10
–20
VS = ±5V
VREF = 0V
G=1
–30
–40
–16 –12 –8
–4 0
4
Output Voltage (V)
8
12 16
®
5 INA2132