OPA2191 datasheet(1/59 Pages) TI

Part #	OPA2191

Description	OPAx191 36-V, Low-Power, Precision, CMOS, Rail-to-Rail Input/Output, Low Offset Voltage, Low Input Bias Current Op Amp

PDF	59 Pages

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Manufacturer	TI [Texas Instruments]

Direct Link	http://www.ti.com

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OPAx191 36-V, Low-Power, Precision, CMOS, Rail-to-Rail Input/Output,

Low Offset Voltage, Low Input Bias Current Op Amp

1 Features

• Low offset voltage: ±5 µV

• Low offset voltage drift: ±0.1 µV/°C

• Low noise: 15 nV/√ Hz at 1 kHz

• High common-mode rejection: 140 dB

• Low bias current: ±5 pA

• Rail-to-rail input and output

• Wide bandwidth: 2.5-MHz GBW

• High slew rate: 5 V/µs

• Low quiescent current: 140 µA per amplifier

• Wide supply: ±2.25 V to ±18 V, 4.5 V to 36 V

• EMI/RFI filtered inputs

• Differential input voltage range to supply rail

• High capacitive load drive capability: 1 nF

• Industry standard packages:

– Single in SOIC-8, SOT-5, and VSSOP-8

– Dual in SOIC-8 and VSSOP-8

– Quad in SOIC-14, TSSOP-14, and WQFN-16

2 Applications

• Analog input module

• Mixed module (AI, AO, DI, DO)

• Data acquisition (DAQ)

• Source measurement unit (SMU)

• Pressure transmitter

• Train control and management systems

• Lab and field instrumentation

3 Description

The OPAx191 family (OPA191, OPA2191, and

OPA4191) is a new generation of 36-V, e-trim™

operational amplifiers.

These devices offer outstanding dc precision and

ac performance, including rail-to-rail input/output, low

offset voltage (±5 µV, typ), low offset drift (±0.2 µV/°C,

typ), and 2-MHz bandwidth.

Unique features, such as differential input-voltage

range to the supply rail, high output current (±65 mA),

high capacitive load drive of up to 1 nF, and high

slew rate (5 V/µs), make the OPAx191 a robust, high-

performance operational amplifier for high-voltage

industrial applications.

The OPAx191 family of op amps is available in

standard packages and is specified from –40°C to

+125°C.

Device Information

PART NUMBER

PACKAGE(1)

BODY SIZE (NOM)

OPA191

SOIC (8)

4.90 mm × 3.90 mm

SOT (5)

2.90 mm × 1.60 mm

VSSOP (8)

3.00 mm × 3.00 mm

OPA2191

SOIC (8)

4.90 mm × 3.90 mm

VSSOP (8)

3.00 mm × 3.00 mm

OPA4191

SOIC (14)

8.65 mm x 3.90 mm

TSSOP (14)

5.00 mm x 4.40 mm

WQFN (16)

4.00 mm x 4.00 mm

(1)

For all available packages, see the package option

addendum at the end of the data sheet.

ADS8864

REF

VIN

P

VIN

M

4:2

HV MUX

+

Antialiasing

Filter

Gain

High-Voltage Level Translation

VCM

High-Voltage Multiplexed Input

Reference Driver

REF3140

RC Filter

OPA625

RC Filter

Analog Inputs

Bridge Sensor

Thermocouple

Current Sensing

Optical Sensor

OPA191

OPA191 in a High-Voltage, Multiplexed, Data-Acquisition System

OPA191, OPA2191, OPA4191

SBOS701D – DECEMBER 2015 – REVISED AUGUST 2021

An IMPORTANT NOTICE at the end of this data sheet addresses availability, warranty, changes, use in safety-critical applications,

intellectual property matters and other important disclaimers. PRODUCTION DATA.

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OPA2191 Datasheet(PDF) 1 Page - Texas Instruments

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