OPAX170 datasheet(9/60 Pages) TI2

9 / 60 page

OPA172, OPA2172, OPA4172

www.ti.com

SBOS618I – DECEMBER 2013 – REVISED MAY 2018

Product Folder Links: OPA172 OPA2172 OPA4172

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7.7 Electrical Characteristics

At TA = +25°C, VS = ±2.25 V to ±18 V, VCM = VOUT = VS / 2, and RL = 10 kΩ connected to VS / 2 (unless otherwise noted)

PARAMETER

TEST CONDITIONS

MIN

TYP

MAX

UNIT

OFFSET VOLTAGE

VOS

Input offset voltage

±0.2

±1

TA = –40°C to +125°C

±1.15

dVOS/dT

Drift

TA = –40°C to +125°C

OPA172, OPA4172

±0.3

±1.5

µV/°C

OPA2172

±1.8

PSRR

vs power supply

TA = –40°C to +125°C

±1

±3

µV/V

Channel separation, dc

At dc

µV/V

INPUT BIAS CURRENT

Input bias current

±8

±15

TA = –40°C to +125°C

±14

TA = –40°C to +125°C

OPA2172IDGK

±18

OPA41721PW

IOS

Input offset current

±2

±15

TA = –40°C to +125°C

OPA172, OPA4172

±1

OPA2172

±3

NOISE

Input voltage noise

f = 0.1 Hz to 10 Hz

2.5

µVPP

Input voltage noise density

f = 100 Hz

nV/

√Hz

f = 1 kHz

Input current noise density

f = 1 kHz

1.6

fA/

√Hz

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