Datasheet > ADA4938-2

ADA4938-2

更新时间： 2022-05-06 11:15:49

品牌	Logo	应用领域
亚德诺 - ADI		运算放大器
页数	文件大小	规格书
58页	6724K
描述
Operational Amplifiers Selection Guide

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数据手册

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ADA4938-2 数据手册

Precision Amplifiers (V_OS< 1 mV, Bandwidth < 50 MHz)

Overvoltage Protection (OVP) Amplifiers

ADA4091-2/ADA4091-4: Micropower, OVP, Rail-to-Rail Input/Output Operational Amplifier

The ADA4091-2 dual and ADA4091-4 quad are micropower, single-supply, 1.2 MHz bandwidth amplifiers featuring rail-to-rail inputs and outputs. They are

guaranteed to operate from a +2.7 V to +30 V single supply, as well as from ±1.35 V to ±15 V dual supplies. The ADA4091 family features a unique input

stage that allows the input voltage to exceed either supply safely without any phase reversal or latch-up; this is called overvoltage protection, or OVP.

Features

•ꢀSingle-supply operation: 2.7 V to 36 V

+30V

U1A

•ꢀRail-to-rail output swing

BIAS 12kꢀ

+30V

•ꢀLow supply current: 200 mA/amplifier

•ꢀWide bandwidth: 1.2 MHz

1/2

ADR512

10nF

+30V

ADA4091-2

U1B

•ꢀLow offset voltage: 250 mV maximum

•ꢀNo phase reversal

AD5292

2/2

OUT

20kꢀ

ADA4091-2

•ꢀOvervoltage protection (OVP)

•ꢀ25 V above/below supply rails at 65 V

•ꢀ12 V above/below supply rails at 615 V

22.1kꢀ ꢁ 1%

1kꢀ ꢁ 1%

SERIAL

INTERFACE

Applications

•ꢀIndustrial process control

•ꢀBattery-powered instrumentation

•ꢀPower supply control and protection

•ꢀTelecommunications

Circuit Note CN-0111, Low Cost, High Voltage, Unipolar DAU Reference Circuit,

www.analog.com/CN0111.

•ꢀRemote sensors

•ꢀLow voltage strain gage amplifiers

•ꢀDAC output amplifiers

Overvoltage Protection (OVP) Ampliﬁers

Supply

Voltage

(Min/Max)

BW @

_CLMin Rate

(MHz) (V/ms)

Slew

CMRR PSRR A_VO

Min Min Min (nV/

(dB) (dB) (dB) @ 1 kHz

Noise

OVP

Level

(V)

Price

@ 1k

(OEM $US)

Part

No. of

V_OSMax

(mV)

TcV_OS

(mv/°C Typ)

I_S/Amp

(mA Max)

Process

Rail-to-Rail¹

√

Packaging

Number Amps

OP191

OP291

OP491

SOIC

SOIC/TSSOP/PDIP

1.69

2.22

3.60

Bipolar

2.7/12

RRIO

1.5

0.5

1.1

0.420

ADA4091-2

ADA4091-4

SOIC/LFCSP

LFCSP/TSSOP

2.22

3.50

61.35/618

RRIO

1.27

1.4

0.46

0.4

0.25

1.5

2.5

104

108 116

98 116

0.250

Bipolar ADA4092-4

TSSOP

2.50

¹RRIO: rail-to-rail input/output, RRO: rail-to-rail output, SS: single supply (IVR includes –V_SY).

www.analog.com/opamps

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