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1000

800

600

400

200

-200

-400

-600

-800

-1000

V (µV)

-20 -15 -10 -5 0 5 10 15 20

V (V)

V = -18.1 V

10 Typical Units Shown

350

250

150

-50

-150

-250

-350

V (µV)

0 2 4 6 8 16 20

V (V)

SUPPLY

V = ±2.25 V to ±18 V

SUPPLY

10 Typical Units Shown

18141210

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Design

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.

OPA171

OPA2171

OPA4171

SBOS516G –SEPTEMBER 2010–REVISED MAY 2020

OPAx171 36-V, Single-Supply, SOT-553, General-Purpose Operational Amplifiers

1 Features

• Supply range: 2.7 to 36 V, ±1.35 V to ±18 V

• Low noise: 14 nV/√Hz

• Low offset drift: ±0.3 µV/°C (typical)

• RFI filtered inputs

• Input range includes the negative supply

• Input range operates to positive supply

• Rail-to-rail output

• Gain bandwidth: 3 MHz

• Low quiescent current: 475 µA per amplifier

• High common-mode rejection: 120 dB (typical)

• Low-input bias current: 8 pA

• Industry-standard packages:

– 8-pin SOIC

– 8-pin MSOP

– 14-pin TSSOP

• Micro packages:

– Single in SOT-553

– Dual in VSSOP-8

2 Applications

• Tracking amplifier in power modules

• Merchant power supplies

• Transducer amplifiers

• Bridge amplifiers

• Temperature measurements

• Strain gauge amplifiers

• Precision integrators

• Battery-powered instruments

• Test equipment

SPACE

3 Description

The OPA171, OPA2171, and OPA4171 (OPAx171)

are a family of 36-V, single-supply, low-noise

operational amplifiers with the ability to operate on

supplies ranging from 2.7 V (±1.35 V) to 36 V (±18

V). These devices are available in micro-packages

and offer low offset, drift, and bandwidth with low

quiescent current. The single, dual, and quad

versions all have identical specifications for maximum

design flexibility.

Unlike most operational amplifiers, which are

specified at only one supply voltage, the OPAx171

family is specified from 2.7 to 36 V. Input signals

beyond the supply rails do not cause phase reversal.

The OPAx171 family is stable with capacitive loads

up to 300 pF. The input can operate 100 mV below

the negative rail and within 2 V of the top rail during

normal operation. These devices can operate with full

rail-to-rail input 100 mV beyond the top rail, but with

reduced performance within 2 V of the top rail.

The OPAx171 series of operational amplifiers are

specified from –40°C to +125°C.

Device Information

(1)

PART NUMBER PACKAGE BODY SIZE (NOM)

OPA171 SOT-23 (5) 1.60 mm × 2.90 mm

OPA2171 SOIC (8) 3.90 mm × 4.90 mm

OPA4171

TSSOP (14) 4.40 mm × 5.00 mm

SOIC (14) 3.90 mm × 8.65 mm

(1) For all available packages, see the orderable addendum at

the end of the data sheet.

Offset Voltage vs Common-Mode Voltage Offset Voltage vs Power Supply

OPA171

OPA2171

OPA4171

SBOS516G –SEPTEMBER 2010–REVISED MAY 2020

www.ti.com

Product Folder Links: OPA171 OPA2171 OPA4171

Table of Contents

1 Features.................................................................. 1

2 Applications ........................................................... 1

3 Description ............................................................. 1

4 Revision History..................................................... 2

5 Pin Configuration and Functions......................... 4

6 Specifications......................................................... 7

6.1 Absolute Maximum Ratings ...................................... 7

6.2 ESD Ratings.............................................................. 7

6.3 Recommended Operating Conditions....................... 7

6.4 Thermal Information: OPA171 .................................. 8

6.5 Thermal Information: OPA2171 ................................ 8

6.6 Thermal Information: OPA4171 ................................ 8

6.7 Electrical Characteristics........................................... 9

6.8 Typical Characteristics............................................ 12

7 Detailed Description............................................ 18

7.1 Overview ................................................................. 18

7.2 Functional Block Diagram ....................................... 18

7.3 Feature Description................................................. 18

7.4 Device Functional Modes........................................ 20

8 Application and Implementation ........................ 21

8.1 Application Information............................................ 21

8.2 Typical Application ................................................. 23

9 Power Supply Recommendations...................... 27

10 Layout................................................................... 27

10.1 Layout Guidelines ................................................ 27

10.2 Layout Example .................................................... 27

11 Device and Documentation Support ................. 28

11.1 Related Links ........................................................ 28

11.2 Support Resources ............................................... 28

11.3 Trademarks........................................................... 28

11.4 Electrostatic Discharge Caution............................ 28

11.5 Glossary................................................................ 28

12 Mechanical, Packaging, and Orderable

Information ........................................................... 28

4 Revision History

NOTE: Page numbers for previous revisions may differ from page numbers in the current version.

Changes from Revision F (April 2018) to Revision G Page

• Added links to Applications .................................................................................................................................................... 1

• Changed graphs with incorrect units (mV to µV) in the Typical Characteristics section...................................................... 12

Changes from Revision E (April 2015) to Revision F Page

• Changed minimum supply voltage value from ±20 V to 0 V in Absolute Maximum Ratings table ....................................... 7

• Added maximum supply voltage value of 40 V to Absolute Maximum Ratings table ........................................................... 7

• Rewrote Electrical Overstress subsection content in Application Information section ........................................................ 21

Changes from Revision D (September 2012) to Revision E Page

• Changed device title (removed "Value Line Series").............................................................................................................. 1

• Added ESD Ratings table, Feature Description section, Device Functional Modes, Application and Implementation

section, Power Supply Recommendations section, Layout section, Device and Documentation Support section, and

Mechanical, Packaging, and Orderable Information section ................................................................................................. 1

Changes from Revision C (June 2011) to Revision D Page

• Added "Value Line Series" to title........................................................................................................................................... 1

Changes from Revision B (November 2010) to Revision C Page

• Added MSOP-8 package to device graphic ........................................................................................................................... 1

• Added MSOP-8 package to Features bullets ......................................................................................................................... 1

• Added MSOP-8 package to Product Family table.................................................................................................................. 1

• Updated pinout configurations for OPA2171 and OPA4171 .................................................................................................. 4

• Added MSOP-8 package to OPA2171 Thermal Information table......................................................................................... 8