OPA820 datasheet(7/32 Pages) TI1

Part #	OPA820

Description	UNITY-GAIN STABLE, LOW-NOISE, VOLTAGE-FEEDBACK OPERATIONAL AMPLIFIER

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Manufacturer	TI1 [Texas Instruments]

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OPA820-HT

www.ti.com

SBOS587

– DECEMBER 2011

ELECTRICAL CHARACTERISTICS: VS = 5 V (continued)

RF = 402 Ω, RL = 100 Ω, and G = 2, unless otherwise noted.

-55

°C to 125°C

210

°C

TEST

PARAMETER

CONDITIONS

MIN

TYP

MAX

MIN

TYP

MAX

UNIT

LEVEL(1)

INPUT

Common-Mode Input Range

3.9

3.2

V

A

(CMIR)(3)

Common-Mode Rejection

VCM = 0 V, Input-Referred

72

70

dB

A

Input Impedance

Differential mode

VCM = 0 V

18 || 0.8

k

Ω || pf

C

Common mode

VCM = 0 V

6 || 1.0

M

Ω || pf

OUTPUT

No Load

3.4

3.7

3.4

Output Voltage Swing

V

A

RL = 100 Ω

3.4

3.6

3.4

Short-Circuit Output Current

Output Shorted to Ground

±60

±37

mA

C

Closed-Loop Output

G = 2, f

≤ 100 kHz

0.04

Ω

C

Impedance

POWER SUPPLY

Maximum Operating Voltage

5

V

A

Maximum Quiescent Current

VS = ±5 V

5.8

6.5

mA

A

Minimum Quiescent Current

VS = ±5 V

3.8

4

mA

A

Power-Supply Rejection

Input Referred

62

61

dB

C

Ratio (

±PSRR)

(3)

Tested

< 3 dB below minimum specified CMRR at ±CMIR limits.

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