Datasheet

®
INA131
2
SPECIFICATIONS
At T
A
= +25°C, V
S
= ±15V, R
L
= 2kΩ, unless otherwise noted.
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.
✻ Specification same as INA131BP.
NOTES: (1) R
L
= 10kΩ. (2) Absolute value of internal gain-setting resistors. (Gain depends on resistor ratios.)
INA131BP INA131AP
PARAMETER CONDITIONS MIN TYP MAX MIN TYP MAX UNITS
INPUT
Offset Voltage, RTI
Initial T
A
= +25°C ±10 ±50 ±25 ±125 µV
vs Temperature T
A
= T
MIN
to T
MAX
±0.1 ±0.25 ±0.25 ±1 µV/°C
vs Power Supply V
S
= ±2.25V to ±18V 0.5 3 ✻✻ µV/V
Long-Term Stability 0.2 ✻ µV/mo
Impedance, Differential 10
10
|| 6 ✻ Ω || pF
Common-Mode 10
10
|| 6 ✻ Ω || pF
Input Common-Mode Range ±11 ±13.5 ✻✻ V
Safe Input Voltage ±40 ✻ V
Common-Mode Rejection V
CM
= ±10V, ∆R
S
= 1kΩ 110 120 106 110 dB
BIAS CURRENT ±0.5 ±2 ✻ ±5nA
vs Temperature ±8 ✻ pA/°C
OFFSET CURRENT ±0.5 ±2 ✻ ±5nA
vs Temperature ±8 ✻ pA/°C
NOISE VOLTAGE, RTI R
S
= 0Ω
f = 10Hz 16 ✻ nV/√Hz
f = 100Hz 12 ✻ nV/√Hz
f = 1kHz 12 ✻ nV/√Hz
f = 10kHz 12 ✻ nV/√Hz
f
B
= 0.1Hz to 10Hz 0.4 ✻ µVp-p
Noise Current
f = 10Hz 0.4 ✻ pA/√Hz
f= 1kHz 0.2 ✻ pA/√Hz
f
B
= 0.1Hz to 100Hz 18 ✻ pAp-p
GAIN
Gain Error
(1)
±0.01 ±0.024 ✻ ±0.1 %
Resistor Value
(2)
±10 ±40 ✻✻ %
Gain vs Temperature ±5 ±10 ✻ ±20 ppm/°C
Nonlinearity ±0.0003 ±0.002 ✻ ±0.004 % of FSR
OUTPUT
Voltage I
O
= 5mA, T
MIN
to T
MAX
±13.5 ±13.7 ✻✻ V
V
S
= ±11.4V, R
L
= 2kΩ±10 10.5 ✻✻ V
V
S
= ±2.25V, R
L
= 2kΩ±1 1.5 ✻✻ V
Load Capacitance, max Stable Operation 1000 ✻ pF
Short Circuit Current +20/–15 ✻ mA
FREQUENCY RESPONSE
Bandwidth, –3dB 70 ✻ kHz
Slew Rate V
O
= ±10V 0.3 0.7 ✻✻ V/µs
Settling Time, 0.01% 100 ✻ µs
Overload Recovery 50% Overdrive 20 ✻ µs
POWER SUPPLY
Voltage Range ±2.25 ±15 ±18 ✻✻✻ V
Current V
IN
= 0V ±2.2 ±3 ✻✻ mA
TEMPERATURE RANGE
Specification –40 85 ✻✻°C
Operating –40 125 ✻✻°C
θ
JA
100 ✻ °C/W