7.5 Electrical Characteristics

For VS = (V+) – (V–) = 1.8 V to 5.5 V (±0.9 V to ±2.75 V) at TA = 25°C, VREF = VS/2, G = 10, RL = 10 kΩ connected to VS / 2,

VCM = [(VIN+) + (VIN–)] / 2 = VS / 2, VIN = (VIN+) – (VIN–) = 0 V and VOUT = VS / 2 (unless otherwise noted)

PARAMETER

TEST CONDITIONS

MIN

TYP

MAX

UNIT

INPUT

VOSI

Offset Voltage, RTI(7) (1)

VS = 5.5 V, G = 10, 20, 30, 50

TA = 25°C

±0.2

±1.3

mV

Offset Voltage over T,

RTI(7) (1)

VS = 5.5 V, G = 10, 20, 30, 50

TA = –40°C to 125°C

±1.4

mV

Offset temp drift, RTI(7) (2) VS = 5.5 V, G = 10, 20, 30, 50

TA = –40°C to 125°C

±0.65

µV/°C

PSRR

Power-supply rejection

ratio(7)

G = 10, 20, 30, 50

TA = 25°C

20

75

µV/V

ZIN-DM

Differential Impedance

100 || 5

GΩ || pF

ZIN-CM

Common Mode

Impedance

100 || 9

GΩ || pF

VCM

Input Stage Common

Mode Range(3)

(V–)

(V+)

V

CMRR

DC

Common-mode rejection

ratio, RTI(7)

G = 10, 20, 30, 50, VCM = (V–) + 0.1

V to (V+) – 1 V, High CMRR Region

VS = 5.5 V, VREF = VS/2

86

95

dB

G = 10, 20, 30, 50, VCM = (V–) + 0.1

V to (V+) – 1 V, High CMRR Region

VS = 3.3 V, VREF = VS/2

94

G = 10, 20, 30, 50, VCM = (V–) + 0.1

V to (V+) – 0.1 V

VS = 5.5 V, VREF = VS/2

62

75

BIAS CURRENT

IB

Input bias current

VCM = VS / 2

±0.65

pA

IOS

Input offset current

VCM = VS / 2

±0.25

pA

NOISE VOLTAGE

eNI

Input referred voltage

noise density(7) (5)

G = 10, 20, 30, 50

f = 1 kHz

36

nV/√Hz

G = 10, 20, 30, 50

f = 10 kHz

35

ENI

Input referred voltage

noise(5)

G = 10, fB = 0.1 Hz to 10 Hz

3.2

µVPP

in

Input current noise

f = 1 kHz

f = 1 kHz

22

fA/√Hz

GAIN

GE

Gain error(4)

G = 10, VREF = VS/2

VO = (V–) + 0.1 V to

(V+) – 0.1V

±0.015

±0.10

%

G = 20, VREF = VS/2

±0.020

±0.10

Gain error(4) (7)

G = 30, VREF = VS/2

±0.020

±0.10

G = 50, VREF = VS/2

±0.015

±0.10

OUTPUT

VOH

Positive rail headroom

RL = 10 kΩ to VS/2

15

30

mV

VOL

Negative rail headroom

RL = 10 kΩ to VS/2

15

30

mV

CL Drive Load capacitance drive

VO = 100 mV step, Overshoot < 20%

500

pF

ZO

Closed-loop output

impedance

f = 10 kHz

51

Ω

ISC

Short-circuit current

VS = 5.5 V

±20

mA

FREQUENCY RESPONSE

BW

Bandwidth, –3 dB

G = 10

VIN = 10 mVpk-pk

100

kHz

G = 20

50

Bandwidth, –3 dB(7)

G = 30

40

G = 50

25

THD + N

Total harmonic distortion +

noise

VS = 5.5 V, VCM = 2.75 V, VO = 1 VRMS, G = 10, RL = 100 kΩ

ƒ = 1 kHz, 80-kHz measurement BW

0.035

%

EMIRR

Electro-magnetic

interference rejection ratio

f = 1 GHz, VIN_EMIRR = 100 mV

96

dB

SR

Slew rate(7)

VS = 5 V, VO = 2 V step, G = 10, 20, 30, 50

0.20

V/µs

INA351

SBOSAD5 – DECEMBER 2022

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