OPA191 Datasheet, PDF (2/45 Pages) Texas Instruments – Low Offset Voltage, Low Input Bias Current Op Amp

OPA191, OPA2191, OPA4191
SBOS701 – DECEMEBER 2015
www.ti.com
Table of Contents
1 Features .................................................................. 1
2 Applications ........................................................... 1
3 Description ............................................................. 1
4 Revision History..................................................... 2
5 Pin Configuration and Functions ......................... 3
6 Specifications......................................................... 5
6.1 Absolute Maximum Ratings ...................................... 5
6.2 ESD Ratings.............................................................. 5
6.3 Recommended Operating Conditions....................... 5
6.4 Thermal Information: OPA191 .................................. 5
6.5 Thermal Information: OPA2191 ................................ 6
6.6 Thermal Information: OPA4191 ................................ 6
6.7 Electrical Characteristics: V_S = ±4 V to ±18 V (V_S = 8
V to 36 V) ................................................................... 7
6.8 Electrical Characteristics: V_S = ±2.25 V to ±4 V (V_S =
4.5 V to 8 V)............................................................... 9
6.9 Typical Characteristics ............................................ 11
7 Parameter Measurement Information ................ 20
7.1 Input Offset Voltage Drift......................................... 20
8 Detailed Description ............................................ 22
8.1 Overview ................................................................. 22
8.2 Functional Block Diagram ....................................... 22
8.3 Feature Description................................................. 23
8.4 Device Functional Modes........................................ 29
9 Application and Implementation ........................ 30
9.1 Application Information............................................ 30
9.2 Typical Applications ................................................ 30
10 Power-Supply Recommendations ..................... 34
11 Layout................................................................... 35
11.1 Layout Guidelines ................................................. 35
11.2 Layout Example .................................................... 36
12 Device and Documentation Support ................. 37
12.1 Device Support...................................................... 37
12.2 Documentation Support ........................................ 37
12.3 Related Links ........................................................ 37
12.4 Community Resources.......................................... 37
12.5 Trademarks ........................................................... 38
12.6 Electrostatic Discharge Caution ............................ 38
12.7 Glossary ................................................................ 38
13 Mechanical, Packaging, and Orderable
Information ........................................................... 38
4 Revision History
DATE
December 2015
REVISION
*
NOTES
Initial release.
2
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