The differential amplifier is the foundation of many
commonly used circuits. The low cost INA143 and
INA2143 provide this precision circuit function without
using an expensive precision network.
The single version, INA143, package is the SO-8 surface
mount. The dual version, INA2143, package is the SO-14
surface mount. Both are specified for operation over the
extended industrial temperature range, –40°C to +85°C.
Operation is from –55°C to +125°C.
V+
11
10kΩ
100kΩ
DESCRIPTION
The INA143 and INA2143 are high slew rate, gain of
10V/V or 0.1V/V difference amplifiers consisting of a
precision op amp with a precision resistor network. The
on-chip resistors are laser trimmed for accurate gain and
high common-mode rejection. Excellent TCR tracking
of the resistor maintains gain accuracy and common-
mode rejection over temperature. They operate over a
wide supply range,
±2.25V
to
±18V
(+4.5V to +36V
single supply), and input common-mode voltage range
extends beyond the positive and negative supply rails.
–In A
V+
7
10kΩ
100kΩ
2
12
Sense A
A
13
Out A
–In
2
5
Sense
+In A
3
10kΩ
100kΩ
14
Ref A
6
Output
–In B
6
10kΩ
100kΩ
10
Sense B
+In
3
10kΩ
100kΩ
1
Ref
B
9
Out B
INA143
4
V–
+In B
5
10kΩ
100kΩ
8
Ref B
INA2143
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
= 10kΩ connected to ground, and reference pin connected to ground, unless otherwise noted.
INA143U
INA2143U
MIN
TYP
±100
±1
±5
0.2
140
20
55
RTI
V
O
= 0V
1.1[(V+)– 1.5] 1.1[(V+) –1]
1.1[(V–) +1.5] 1.1[(V–) + 1]
V
O
= 0V
= –14.85V to 14.85V, R
S
= 0Ω
86
96
RTI
1
45
30
27
10
±0.01
±1
±0.0001
T
T
T
T
T
T
T
T
µVp-p
nV/√Hz
nV/√Hz
nV/√Hz
V/V
%
ppm/°C
% of FS
T
T
80
T
T
T
V
V
dB
MAX
±250
±3
±20
MIN
INA143UA
INA2143UA
TYP
MAX
UNITS
µV
µV/°C
µV/V
µV/√mo
dB
kΩ
kΩ
T
±500
See Typical Curve
T
±30
T
T
T
INPUT VOLTAGE RANGE
Common-Mode Voltage Range
Positive
Negative
Common-Mode Rejection Ratio
OUTPUT VOLTAGE
f = 0.1Hz to 10Hz
f = 10Hz
f = 100Hz
f = 1kHz
GAIN
Initial
Error
vs Temperature
Nonlinearity
OUTPUT
Voltage Output
Positive
Negative
Positive
Negative
Current Limit
Capacitive Load (stable operation)
FREQUENCY RESPONSE
Small-Signal Bandwidth
Slew Rate
Settling Time: 0.1%
0.01%
Overload Recovery Time
POWER SUPPLY
Rated Voltage
Operating Voltage Range
Dual Supplies
Single Supply
Quiescent Current (per amplifier)
TEMPERATURE RANGE
Specification
Operation
Storage
Thermal Resistance
SO-8 Surface Mount
SO-14 Surface Mount
NOISE
(3)
V
CM
V
O
= –14V to +13.5V
V
O
= –14V to +13.5V
Gain Error < 0.1%
R
L
= 10kΩ to Ground
R
L
= 10kΩ to Ground
R
L
= 100kΩ to Ground
R
L
= 100kΩ to Ground
Continuous-to-Common
±0.05
±10
±0.001
±0.1
T
±0.002
(V+) –1.5
(V–) +1
(V+) –1.3
(V–) +0.8
(V+) –0.8
(V–) +0.3
–25, +32
1000
0.15
5
6
9
6
±15
T
T
T
T
T
T
T
T
T
T
T
T
T
T
V
V
V
V
mA
pF
MHz
V/µs
µs
µs
µs
V
T
T
T
T
T
T
V
V
mA
°C
°C
°C
°C/W
°C/W
–3dB
V
O
= 10V Step, C
L
= 100pF
V
O
= 10V Step, C
L
= 100pF
50% Overdrive
±2.25
+4.5
I
O
= 0
–40
–55
–55
±0.95
±18
+36
±1.2
+85
+125
+125
T
T
T
T
T
T
T
T
θ
JA
150
100
T
Specifications the same as INA143U, INA2143U.
NOTES: (1) Includes the effects of amplifier’s input bias and offset currents. (2) Internal resistors are ratio matched but have
±20%
absolute value. (3) 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.
®
INA143, INA2143
2
SPECIFICATIONS: V
S
=
±
5V
PARAMETER
OFFSET VOLTAGE
(1)
Initial
(1)
vs Temperature
INPUT VOLTAGE RANGE
Common-Mode Voltage Range
Positive
Negative
Common-Mode Rejection Ratio
GAIN
Initial
Gain Error
Nonlinearity
OUTPUT
Voltage Output
Positive
Negative
Positive
Negative
POWER SUPPLY
Rated Voltage
Operating Voltage Range
Dual Supplies
Single Supply
Quiescent Current (per amplifier)
T
Specifications the same as INA143U, INA2143U.
CONDITIONS
RTI
V
CM
= 0V
RTI
At T
A
= +25°C, V
S
=
±5V,
G = 10, R
L
= 10kΩ connected to ground, and reference pin connected to ground, unless otherwise noted.
INA143U
INA2143U
MIN
TYP
±200
±1
MAX
±500
MIN
INA143UA
INA2143UA
TYP
T
T
MAX
±750
UNITS
µV
µV/°C
V
O
= 0V
1.1[(V+)– 1.5] 1.1[(V+) –1]
1.1[(V–) +1.5] 1.1[(V–) +1]
V
O
= 0V
V
CM
= –3.85V to +3.85V, R
S
= 0Ω
86
96
10
±0.01
±0.0001
T
T
80
T
T
T
T
T
T
V
V
dB
V/V
%
% of FS
V
O
= –4V to +3.5V
V
O
= –4V to +3.5V
Gain Error < 0.1%
R
L
= 10kΩ to Ground
R
L
= 10kΩ to Ground
R
L
= 100kΩ to Ground
R
L
= 100kΩ to Ground
±0.05
±0.001
±0.1
±0.002
(V+) –1.5
(V–) +1
(V+)–1.3
(V–)+0.8
(V+)–0.8
(V–)+0.3
+5
T
T
T
T
T
T
T
V
V
V
V
V
T
T
T
V
V
mA
±2.25
+4.5
I
O
= 0
±0.92
±18
+36
±1.2
T
T
T
NOTES: (1) Includes the effects of amplifier’s input bias and offset currents.
ABSOLUTE MAXIMUM RATINGS
(1)
Supply Voltage, V+ to V– .................................................................... 36V
Input Signal (G = 10), Voltage ..................................................... 1.1 • V
S
Current ........................................................ 0.5mA
Input Signal (G = 0.1), Voltage ..................................................... 11 • V
S
Current ....................................................... 0.5mA
Operating Temperature .................................................. –55°C to +125°C
Storage Temperature ..................................................... –55°C to +125°C
Junction Temperature .................................................................... +150°C
Lead Temperature (soldering, 10s) ............................................... +300°C
NOTES: (1) Stresses above these ratings may cause permanent damage.
Exposure to absolute maximum conditions for extended periods may degrade
device reliability. (2) One channel per package.
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
PACKAGE
DRAWING
NUMBER
(1)
182
SPECIFIED
TEMPERATURE
RANGE
–40°C to +85°C
PACKAGE
MARKING
INA143U
ORDERING
NUMBER
(2)
INA143U
INA143U/2K5
INA143UA
INA143UA/2K5
INA2143U
INA2143U/2K5
INA2143UA
INA2143UA/2K5
TRANSPORT
MEDIA
Rails
Tape and Reel
Rails
Tape and Reel
Rails
Tape and Reel
Rails
Tape and Reel
PRODUCT
Single
INA143U
PACKAGE
SO-8 Surface Mount
"
INA143UA
"
SO-8 Surface Mount
"
182
"
–40°C to +85°C
"
INA143UA
"
Dual
INA2143U
"
SO-14 Surface Mount
"
235
"
–40°C to +85°C
"
INA2143U
"
INA2143UA
"
SO-14 Surface Mount
"
235
"
–40°C to +85°C
"
INA2143UA
"
"
"
"
"
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 “INA143UA/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
INA143, INA2143
PIN CONFIGURATIONS
Top View
SO-8
Top View
INA2143
SO-14
INA143
NC
1
14
Ref A
–In A
Ref
1
8
NC
2
A
13
Out A
+In A
–In
2
7
V+
3
12
Sense A
V–
+In
3
6
Output
4
11
V+
+In B
V–
4
5
Sense
5
B
10
Sense B
–In B
NC = No Connection
6
9
Out B
NC
7
8
Ref B
NC = No Connection
®
INA143, INA2143
4
TYPICAL PERFORMANCE CURVES
At T
A
= +25°C, V
S
=
±15V,
G = 10, R
L
= 10kΩ connected to ground, and reference pin connected to ground, unless otherwise noted.
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