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ADS1282-HT

SBAS446H – DECEMBER 2009 – REVISED FEBRUARY 2016

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Copyright © 2009–2016, Texas Instruments Incorporated

Table of Contents

1

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

2

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

3

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

4

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

5

Description (continued)......................................... 3

6

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

7

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

7.1

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

7.2

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

7.3

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

7.4

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

7.5

Electrical Characteristics (PW Package) .................. 8

7.6

Timing Requirements .............................................. 10

7.7

Pulse-Sync Timing Requirements........................... 10

7.8

Reset Timing Requirements ................................... 11

7.9

Read Data Timing Requirements............................ 11

7.10

Switching Characteristics ...................................... 11

7.11

Modulator Switching Characteristics ..................... 11

7.12

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

8

Detailed Description ............................................ 16

8.1

Overview ................................................................. 16

8.2

Functional Block Diagram ....................................... 17

8.3

Feature Description................................................. 17

8.4

Device Functional Modes........................................ 36

8.5

Programming........................................................... 36

8.6

Register Maps ......................................................... 41

9

Application and Implementation ........................ 46

9.1

Application Information............................................ 46

9.2

Typical Application ................................................. 46

10

Power Supply Recommendations ..................... 48

11

Device and Documentation Support ................. 50

11.1

Device Support...................................................... 50

11.2

Community Resources.......................................... 53

11.3

Trademarks ........................................................... 53

11.4

Electrostatic Discharge Caution ............................ 53

11.5

Glossary ................................................................ 53

12

Mechanical, Packaging, and Orderable

Information ........................................................... 53

4 Revision History

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

Changes from Revision G (May 2015) to Revision H

Page

•

Relaxed current for standby and power mode from "110 µA" to "250 µA" ............................................................................ 7

Changes from Revision F (August 2011) to Revision G

Page

•

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

•

Removed data in Specifications for low-power modes .......................................................................................................... 6

•

Removed low-power mode data from graphs in Typical Characteristics ............................................................................ 12

•

Remove low-power mode information from Figure 35 ........................................................................................................ 24

Changes from Revision C (August 2010) to Revision D

Page

•

•

Updated Modulator Input Impedance ................................................................................................................................... 23

•

Updated Figure 36 ................................................................................................................................................................ 25

•

Updated Table 9 and added footnote................................................................................................................................... 34

•

Updated Modulator Output Mode ......................................................................................................................................... 36

•

Updated Figure 56 and added footnote................................................................................................................................ 36

•

Updated Figure 75 ................................................................................................................................................................ 46