6.5 Electrical Characteristics

at TA = 25°C, VSENSE = VIN+ – VIN–, VS = 1.8 V to 5.0 V, VIN+ = 12 V, VREF = VS / 2 (INA2191), and VENABLE = VS (unless

otherwise noted)

PARAMETER

CONDITIONS

MIN

TYP

MAX

UNIT

INPUT

CMRR

Common-mode

rejection ratio, RTI(1)

VIN+ = –0.1 V to 40 V, TA = –40°C to +125°C

132

150

dB

VOS

Offset voltage, RTI(1)

VS = 1.8 V

–2.5

±12

µV

dVOS/dT

Offset drift, RTI

TA = –40°C to +125°C

10

130

nV/°C

PSRR

Power-supply rejection

ratio, RTI

VS = 1.7 V to 5.5 V

–1

±5

µV/V

IIB

Input bias current

VSENSE = 0 mV

0.1

3

nA

IIO

Input offset current

VSENSE = 0 mV

±0.07

nA

OUTPUT

G

Gain

A1 devices

25

V/V

A2 devices

50

A3 devices

100

A4 devices

200

A5 devices

500

EG

Gain error

VOUT = 0.1 V to VS – 0.1 V

A1 devices, INA191

–0.17%

±0.35%

A1 devices, INA2191

+0.05%

±0.25%

A2, A3, A4, A5

devices

–0.04%

±0.25%

Gain error drift

TA = –40°C to +125°C

2

7

ppm/°C

Nonlinearity error

VOUT = 0.1 V to VS – 0.1 V

±0.01%

RVRR

Reference voltage

rejection ratio

INA2191 only,

VREF = 100 mV to VS – 100 mV,

TA = –40°C to +125°C

A1 devices

±2

±12

µV/V

A2 devices

±1

±6

A3 devices

±0.5

±4

A4, A5 devices

±0.25

±3

Maximum capacitive

load

No sustained oscillation

1

nF

VOLTAGE OUTPUT

VSP

Swing to VS power-

supply rail

VS = 1.8 V, RL = 10 kΩ to GND, TA = –40°C to +125°C

(VS) – 23

(VS) – 40

mV

VSN

Swing to GND

VS = 1.8 V, RL = 10 kΩ to GND, TA = –40°C to +125°C,

VSENSE = –10 mV, VREF = 0 V (INA2191)

(VGND) + 0.05

(VGND) + 1

mV

VZL

Zero current output

voltage

VS = 1.8 V, RL = 10 kΩ to GND,

TA = –40°C to +125°C, VSENSE = 0 mV,

for INA2191 VREF = 0 V

A1, A2, A3 devices

(VGND) + 1

(VGND) + 3

mV

A4 devices

(VGND) + 2

(VGND) + 4

mV

A5 devices

(VGND) + 3

(VGND) + 7

mV

FREQUENCY RESPONSE

BW

Bandwidth

CLOAD = 10 pF

A1 devices

45

kHz

A2 devices

37

A3 devices

35

A4 devices

33

A5 devices

27

SR

Slew rate

VS = 5.0 V, VOUT = 0.5 V to 4.5 V

0.3

V/µs

tS

Settling time

From current step to within 1% of final value

30

µs

INA191, INA2191

SLYS020C – FEBRUARY 2019 – REVISED AUGUST 2021

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