OPA992 datasheet(8/27 Pages) TI

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6.7 Electrical Characteristics

For VS = (V+) – (V–) = 2.7 V to 40 V (±1.35 V to ±20 V) at TA = 25°C, RL = 10 kΩ connected to VS / 2, VCM = VS / 2, and

VO UT = VS / 2, unless otherwise noted.

PARAMETER

TEST CONDITIONS

MIN

TYP

MAX

UNIT

OFFSET VOLTAGE

VOS

Input offset voltage

VCM = V–

±0.2

±1

TA = –40°C to 125°C

±1.2

dVOS/dT

Input offset voltage drift

TA = –40°C to 125°C

±0.5

µV/

℃

PSRR

Input offset voltage versus

power supply

VCM = V–, VS = 4 V to 40 V

TA = –40°C to 125°C

±0.1

±1.3

μV/V

VCM = V–, VS = 2.7 V to 40 V

±0.3

±3

DC channel separation

µV/V

INPUT BIAS CURRENT

Input bias current

±10

IOS

Input offset current

±5

NOISE

Input voltage noise

f = 0.1 Hz to 10 Hz

2.5

μVPP

0.42

µVRMS

Input voltage noise density

f = 1 kHz

nV/√Hz

f = 10 kHz

Input current noise

f = 1 kHz

fA/√Hz

INPUT VOLTAGE RANGE

VCM

Common-mode voltage

range

(V–)

(V+)

CMRR

Common-mode rejection

ratio

VS = 40 V, (V–) – 0.1 V < VCM

< (V+) – 2 V (PMOS pair)

TA = –40°C to 125°C

100

115

VS = 4 V, (V–) – 0.1 V < VCM

< (V+) – 2 V (PMOS pair)

VS = 2.7 – 40 V, (V+) – 1 V

< VCM < (V+) + 0.1 V (NMOS

pair)

(V+) – 2 V < VCM < (V+) – 1 V TA = –40°C to 125°C

TBD

INPUT CAPACITANCE

ZID

Differential

100 || 9

MΩ || pF

ZICM

Common-mode

6 || 1

TΩ || pF

OPEN-LOOP GAIN

AOL

Open-loop voltage gain

VS = 40 V, VCM = VS / 2,

(V–) + 0.1 V < VO < (V+) –

0.1 V

120

136

TA = –40°C to 125°C

136

VS = 4 V, VCM = VS / 2,

(V–) + 0.1 V < VO < (V+) –

0.1 V

104

130

TA = –40°C to 125°C

125

FREQUENCY RESPONSE

GBW

Gain-bandwidth product

MHz

Slew rate

VS = 40 V, G = +1, CL = 20 pF

V/μs

Settling time

To 0.1%, VS = 40 V, VSTEP = 10 V , G = +1, CL = 20 pF

0.9

μs

To 0.1%, VS = 40 V, VSTEP = 2 V , G = +1, CL = 20 pF

0.33

To 0.01%, VS = 40 V, VSTEP = 10 V , G = +1, CL = 20 pF

To 0.01%, VS = 40 V, VSTEP = 2 V , G = +1, CL = 20 pF

0.5

Phase margin

G = +1, RL = 10 kΩ, CL = 20 pF

Overload recovery time

VIN × gain > VS

500

THD+N

Total harmonic distortion +

noise

VS = 40 V, VO = 3 VRMS, G = 1, f = 1 kHz

0.00005%

VS = 10 V, VO = 3 VRMS, G = 1, f = 1 kHz, RL = 600 Ω

0.0022%

VS = 10 V, VO = 0.4 VRMS, G = 1, f = 1 kHz, RL = 32 Ω

0.0007%

OPA992, OPA2992, OPA4992

SBOSA10 – JUNE 2021

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