ADS7044

SBAS682D – NOVEMBER 2014 – REVISED DECEMBER 2015

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Table of Contents

8.4

Device Functional Modes........................................ 20

1

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

9

Application and Implementation ........................ 23

2

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

9.1

Application Information............................................ 23

3

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

9.2

Typical Applications ................................................ 23

4

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

10

Power-Supply Recommendations ..................... 29

5

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

10.1

AVDD and DVDD Supply Recommendations....... 29

6

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

10.2

Estimating Digital Power Consumption................. 29

6.1

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

10.3

Optimizing Power Consumed by the Device ........ 29

6.2

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

11

Layout................................................................... 30

6.3

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

11.1

Layout Guidelines ................................................. 30

6.4

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

11.2

Layout Example .................................................... 30

6.5

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

12

Device and Documentation Support ................. 31

6.6

Timing Characteristics............................................... 7

12.1

Documentation Support ........................................ 31

6.7

Typical Characteristics .............................................. 9

12.2

Community Resources.......................................... 31

7

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

12.3

Trademarks ........................................................... 31

7.1

Digital Voltage Levels ............................................. 14

12.4

Electrostatic Discharge Caution ............................ 31

8

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

12.5

Glossary ................................................................ 31

8.1

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

13

Mechanical, Packaging, and Orderable

8.2

Functional Block Diagram ....................................... 15

Information ........................................................... 31

8.3

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

4 Revision History

Changes from Revision C (February 2015) to Revision D

Page

•

Changed Figure 1 ................................................................................................................................................................... 8

•

Changed Serial Interface section: changed last half of first paragraph, changed Figure 35 ............................................... 19

•

Changed Figure 38 ............................................................................................................................................................... 22

•

Added Community Resources section ................................................................................................................................ 31

Changes from Revision B (December 2014) to Revision C

Page

•

Changed Wide Operating Range Features bullet: changed the value of AVDD from 1.8 V to 1.65 V .................................. 1

•

Changed the wide analog input voltage range value to ±1.65 V in first paragraph of Description section ........................... 1

•

Changed AVDD parameter minimum specification in Recommended Operating Conditions table ...................................... 5

•

Changed EO parameter uncalibrated test conditions in Electrical Characteristics table ....................................................... 6

•

Changed Maximum throughput rate parameter test conditions in Electrical Characteristics table ....................................... 6

•

Changed AVDD parameter minimum specification in Electrical Characteristics table .......................................................... 7

•

Changed conditions for Timing Characteristics table: changed range of AVDD and added CLOAD condition ....................... 7

•

Changed tD_CKDO specification in Timing Characteristics table .............................................................................................. 7

•

Added fSCLK minimum specification to Timing Characteristics table ...................................................................................... 7

•

Changed titles of Figure 26 to Figure 30 .............................................................................................................................. 12

•

Changed Reference sub-section in Feature Description section ......................................................................................... 16

•

Changed AVDD range in description of fCLK-CAL parameter in Table 2 ................................................................................ 21

•

Changed AVDD range in description of fCLK-CAL parameter in Table 3 ................................................................................. 22

•

Changed Reference Circuit section in Application Information ............................................................................................ 25

•

Added last two sentences to AVDD and DVDD Supply Recommendations section ........................................................... 29

2

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