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ADS1283

SBAS565C – JANUARY 2014 – REVISED AUGUST 2019

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Product Folder Links: ADS1283

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Copyright © 2014–2019, 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 .................................................. 6

6.5

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

6.6

Timing Requirements ............................................... 9

6.7

Switching Characteristics .......................................... 9

6.8

Typical Characteristics ............................................ 10

7

Parameter Measurement Information ................ 14

7.1

Noise Performance ................................................. 14

8

Detailed Description ............................................ 15

8.1

Overview ................................................................. 15

8.2

Functional Block Diagram ....................................... 16

8.3

Feature Description................................................. 16

8.4

Device Functional Modes........................................ 32

8.5

Programming........................................................... 44

8.6

Register Maps ......................................................... 48

9

Application and Implementation ........................ 52

9.1

Application Information............................................ 52

9.2

Typical Applications ................................................ 52

9.3

Initialization Set Up ................................................. 55

10

Device and Documentation Support ................. 56

10.1

Receiving Notification of Documentation Updates 56

10.2

Community Resources.......................................... 56

10.3

Trademarks ........................................................... 56

10.4

Electrostatic Discharge Caution ............................ 56

10.5

Glossary ................................................................ 56

11

Mechanical, Packaging, and Orderable

Information ........................................................... 56

4 Revision History

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

Changes from Revision B (December 2017) to Revision C

Page

•

Changed document to release full version to web ................................................................................................................. 1

Changes from Revision A (May 2015) to Revision B

Page

•

Added ADS1283B device and related content to data sheet ................................................................................................. 1

•

Added Device Information and Device Comparison tables .................................................................................................... 1

•

Added Recommended Operating Conditions table; content moved from Electrical Characteristics table. No values

changed .................................................................................................................................................................................. 5

•

Deleted ADS1283A text from test condition in Electrical Characteristic table........................................................................ 6

•

Added new row for ADS1283B test condition to Offset parameter in the Electrical Characteristics table............................. 7

•

Added Switching Characteristics table; content moved from Timing Requirements table. No values changed .................... 9

•

Changed text in Offset section for 75-mV option ................................................................................................................. 22

•

Changed Figure 45 to include CLK to SYNC timing ............................................................................................................ 32

•

Deleted tCSHD and tSCSU from Table 12 ................................................................................................................................ 32

•

Added CLK to SYNC timing to Table 12 .............................................................................................................................. 32

•

Changed text in last paragraph of Pulse-Sync Mode section ............................................................................................. 33

•

Changed pulse-sync timing text to include CLK to SYNC timing ........................................................................................ 33

•

Changed Figure 46 to include CLK to SYNC timing ........................................................................................................... 33

•

Changed opcode text of WREG command from 001 to 010 ............................................................................................... 47

•

Added new OFFSET control bit to ID_CFG (register 00h) for ADS1283B device; no change to ADS1283 and

ADS1283A functionality ........................................................................................................................................................ 48

•

Changed format of register description tables ..................................................................................................................... 48