at TA = 25°C, VS = +5V, RL = 20kΩ connected to VS/2, VREF = 0V (unless otherwise noted)

PARAMETER

TEST CONDITIONS

MIN

TYP

MAX

UNIT

GAIN

Gain equation

5 + (200kΩ / RG)

V/V

G

Gain

5

10000

V/V

GE

Gain error

G = 5, VO = ±10V

INA122P, U

±0.05

±0.1

%

INA122PA, UA

±0.05

±0.15

G = 100, VO = ±10V

INA122P, U

±0.3

±0.5

INA122PA, UA

±0.3

±1

Gain vs temperature(2)

G = 5

±5

±10

ppm/°C

G = 100

±25

±100

Gain nonlinearity

G = 100, VO = –14.85V to +14.9V

INA122P, U

±0.005

±0.012

% of FSR

INA122PA, UA

±0.005

±0.024

OUTPUT

Positive output voltage

swing

VS = ±15V

(V+) - 0.1

(V+) - 0.05

V

Negative output voltage

swing

VS = ±15V

(V–) + 0.15

(V-) + 0.1

V

Load capacitance stability

1000

pF

ISC

Short-circuit current

Continuous to VS / 2

+3 / –30

mA

FREQUENCY RESPONSE

BW

Bandwidth, –3dB

G = 5

100

kHz

G = 100

3.5

G = 500

0.9

SR

Slew rate

G = 5, VO = ±10V

Rising

0.08

V/µs

Falling

0.12

Overload recovery

50 % overdrive

22

µs

tS

Settling time

0.01%

G = 5

350

µs

G = 100

450

G = 500

1800

POWER SUPPLY

IQ

Quiescent current

IO = 0A

60

85

µA

(1)

Input voltage range of the INA122 input stage. The input range depends on the common-mode voltage, differential voltage, gain, and

reference voltage. See Typical Characteristic curves Figure 5-5 and Figure 5-6 for more information.

(2)

The values specified for G > 5 do not include the effects of the external gain-setting resistor, RG.

INA122

SBOS069A – OCTOBER 1997 – REVISED DECEMBER 2024

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