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OPA837, OPA2837

SBOS673D – SEPTEMBER 2017 – REVISED DECEMBER 2018

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Product Folder Links: OPA837 OPA2837

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Copyright © 2017–2018, Texas Instruments Incorporated

Table of Contents

1

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

2

Applications ........................................................... 1

3

Description ............................................................. 1

4

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

5

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

6

Specifications......................................................... 5

6.1

Absolute Maximum Ratings ...................................... 5

6.2

ESD Ratings.............................................................. 5

6.3

Recommended Operating Conditions ....................... 5

6.4

Thermal Information: OPA837 .................................. 6

6.5

Thermal Information: OPA2837 ................................ 6

6.6

Electrical Characteristics: VS = 5 V........................... 7

6.7

Electrical Characteristics: VS = 3 V........................... 9

6.8

Typical Characteristics: VS = 5.0 V ......................... 11

6.9

Typical Characteristics: VS = 3.0 V ......................... 14

6.10

Typical Characteristics: ±2.5-V to ±1.5-V Split

Supply ...................................................................... 17

7

Detailed Description ............................................ 22

7.1

Overview ................................................................. 22

7.2

Functional Block Diagrams ..................................... 22

7.3

Feature Description................................................. 23

7.4

Device Functional Modes........................................ 26

8

Application and Implementation ........................ 30

8.1

Application Information............................................ 30

8.2

Typical Applications ................................................ 39

9

Power Supply Recommendations ...................... 43

10

Layout................................................................... 43

10.1

Layout Guidelines ................................................. 43

10.2

Layout Example .................................................... 44

11

Device and Documentation Support ................. 45

11.1

Documentation Support ........................................ 45

11.2

Related Links ........................................................ 45

11.3

Receiving Notification of Documentation Updates 45

11.4

Community Resources.......................................... 45

11.5

Trademarks ........................................................... 45

11.6

Electrostatic Discharge Caution ............................ 45

11.7

Glossary ................................................................ 46

12

Mechanical, Packaging, and Orderable

Information ........................................................... 46

4 Revision History

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

Changes from Revision C (August 2018) to Revision D

Page

•

Added reference to WQFN (RUN) package in Description section ....................................................................................... 1

•

Added OPA2837 RUN package thermal information to document. ....................................................................................... 6

•

Changed values of maximum and minimum input-referred offset voltage at 25

℃ and across temperature in 5 V and

3 V Electrical Characteristics tables. ...................................................................................................................................... 7

•

Changed value of maximum input offset current drift for OPA2837 in 5 V and 3 V Electrical Characteristics tables. ......... 8

•

Changed minimum value of CMRR in 5 V Electrical Characteristics table ............................................................................ 8

•

Added reference to TIDA-01565 reference design in Power-Down Operation section........................................................ 24

•

Added reference to TIDA-01565 reference design in1-Bit PGA Operation section ............................................................. 42

Changes from Revision B (July 2018) to Revision C

Page

•

Added OPA2837 RUN package to document ........................................................................................................................ 1

Changes from Revision A (April 2018) to Revision B

Page

•

Changed input common-mode impedance in 5V and 3V electrical characteristics tables..................................................... 8

Changes from Original (September 2017) to Revision A

Page

•

Added OPA2837 to document ............................................................................................................................................... 1

•

Added Single-Supply Operating Range Features bullet......................................................................................................... 1

•

Changed 1 SPS to 1 MSPS in front page figure ................................................................................................................... 1

•

Added footnote to Pin Functions table .................................................................................................................................. 4

•

Changed footnote describing method of computation of slew rate in Electrical Characteristics: VS = 5 V table ................... 7