ADS1285 datasheet(2/67 Pages) TI

2 / 67 page

Table of Contents

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

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

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

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

5 Pin Configuration and Functions...................................3

6 Specifications.................................................................. 4

6.1 Absolute Maximum Ratings........................................ 4

6.2 ESD Ratings............................................................... 4

6.3 Recommended Operating Conditions.........................4

6.4 Thermal Information....................................................5

6.5 Electrical Characteristics.............................................6

6.6 Timing Requirements: 1.65 V ≤ IOVDD ≤ 1.95 V

and 2.7 V ≤ IOVDD ≤ 3.6 V......................................... 10

6.7 Switching Characteristics: 1.65V ≤ IOVDD ≤

1.95V and 2.7 V ≤ IOVDD ≤ 3.6 V...............................10

6.8 Timing Diagrams....................................................... 11

6.9 Typical Characteristics.............................................. 13

7 Parameter Measurement Information.......................... 23

7.1 Noise Performance................................................... 23

8 Detailed Description......................................................25

8.1 Overview................................................................... 25

8.2 Functional Block Diagram......................................... 26

8.3 Feature Description...................................................27

8.4 Device Functional Modes..........................................40

8.5 Programming............................................................ 44

8.6 Register Map.............................................................49

9 Application and Implementation.................................. 54

9.1 Application Information............................................. 54

9.2 Typical Application.................................................... 54

9.3 Power Supply Recommendations.............................56

9.4 Layout....................................................................... 57

10 Device and Documentation Support..........................58

10.1 Receiving Notification of Documentation Updates..58

10.2 Support Resources................................................. 58

10.3 Trademarks.............................................................58

10.4 Electrostatic Discharge Caution..............................58

10.5 Glossary..................................................................58

11 Mechanical, Packaging, and Orderable

Information.................................................................... 58

4 Revision History

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

Changes from Revision * (May 2022) to Revision A (December 2022)

Page

• First public release, changed document status from Advance Information to Production Data ........................ 1

ADS1285

SBAS559A – MAY 2022 – REVISED DECEMBER 2022

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