INA821 datasheet(7/28 Pages) TI

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7.5 Electrical Characteristics (continued)

at TA = 25°C, VS = ±15 V, VICM = VOCM = mid-supply, VCLAMP+ = VS+, VCLAMP– = VS–, RL = 10 kΩ, and G = 1 (unless

otherwise noted)

PARAMETER

TEST CONDITIONS

MIN

TYP

MAX

UNIT

BIAS CURRENT

Input bias current

TA = –40°C to +125°C

TBD

Input bias current drift

TA = –40°C to +125°C

pA/°C

IOS

Input offset current

TA = –40°C to +125°C

TBD

Input offset current drift

TA = –40°C to +125°C

pA/°C

NOISE VOLTAGE

eNI

Input stage voltage noise

density(7)

f = 1 kHz, G = 1000

3.2

nV/√Hz

Input stage voltage

noise(7)

fB = 0.1 Hz to 10 Hz, G = 1000

TBD

µVPP

eNO

Output stage voltage

noise density(7)

f = 1 kHz

G = 0.2

nV/√Hz

G = 1

nV/√Hz

Output stage voltage

noise(7)

fB = 0.1 Hz to 10 Hz

G = 0.2

TBD

µVPP

G = 1

TBD

µVPP

Current noise density

f = 1 kHz, G = 1000

0.8

pA/√Hz

Current noise

fB = 0.1 Hz to 10 Hz, G = 100

TBD

pAPP

GAIN

Gain equation

(0.2 or 1) × (1 + (6 kΩ / RG) )

V/V

Gain

0.2

10000

V/V

Gain error

G = 0.2, VO = ±2 V

±0.1

G = 1, VO = ±10 V

±0.02

G = 10, VO = ±10 V

±0.2

G = 100, VO = ±10 V

±0.2

G = 1000, VO = ±10 V

TBD

Gain drift(6)

TA = –40°C to +85°C

G = 0.2

TBD

ppm/°C

G = 1

TBD

G > 1

±35

Gain nonlinearity

G = 0.2, VO = –2 V to +2 V

TBD

ppm

G = 1, VO = –10 V to +10 V

TBD

G > 1, VO = –10 V to +10 V

TBD

OUTPUT

Output voltage swing

IOUT = 10 mA, TA = –40°C to +125°C

No output clamping

(VCLAMP+ = VS+,

VCLAMP– = VS–)

(VS–) + 1.4

(VS+) – 1.4

Output clamping enabled

(VCLAMP+ = VS+ –1.5 V,

VCLAMP– = VS–+1.5 V)

VCLAMP– –

0.1

VCLAMP+ + 0.1

Load capacitance

Stable operation for differential load

100

Open-loop output

impedance

f = 10 kHz

TBD

Ω

ISC

Short-circuit current

Continuous to VS / 2

±37

TA = –40°C to 125°C

±37

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SBOS999 – MARCH 2022

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