ADS7251 Datasheet, PDF (2/38 Pages) Texas Instruments – ADS7x51 12-Bit, 2-MSPS and 14-Bit, 1.5-MSPS, Dual, Differential Input, Simultaneous- Sampling, Analog-to-Digital Converters with Internal Reference

ADS7251, ADS7851
SBAS587A – JANUARY 2014 – REVISED APRIL 2014
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Table of Contents
1 Features .................................................................. 1
2 Applications ........................................................... 1
3 Description ............................................................. 1
4 Revision History..................................................... 2
5 Terminal Configuration and Functions................ 3
6 Specifications......................................................... 4
6.1 Absolute Maximum Ratings ..................................... 4
6.2 Handling Ratings....................................................... 4
6.3 Recommended Operating Conditions....................... 4
6.4 Thermal Information .................................................. 4
6.5 Electrical Characteristics: ADS7251 ......................... 5
6.6 Electrical Characteristics: ADS7851 ......................... 6
6.7 Electrical Characteristics: Common .......................... 7
6.8 ADS7251 Timing Characteristics .............................. 8
6.9 ADS7851 Timing Characteristics .............................. 9
6.10 Typical Characteristics: ADS7251 ........................ 10
6.11 Typical Characteristics: ADS7851 ........................ 13
6.12 Typical Characteristics: Common ......................... 16
7 Detailed Description ............................................ 17
7.1 Overview ................................................................. 17
7.2 Functional Block Diagram ....................................... 17
7.3 Feature Description................................................. 18
7.4 Device Functional Modes........................................ 21
8 Application and Implementation ........................ 23
8.1 Application Information............................................ 23
8.2 Typical Application ................................................. 23
9 Power Supply Recommendations...................... 27
10 Layout................................................................... 28
10.1 Layout Guidelines ................................................. 28
10.2 Layout Example .................................................... 28
11 Device and Documentation Support ................. 29
11.1 Documentation Support ........................................ 29
11.2 Related Links ........................................................ 29
11.3 Trademarks ........................................................... 29
11.4 Electrostatic Discharge Caution ............................ 29
11.5 Glossary ................................................................ 29
12 Mechanical, Packaging, and Orderable
Information ........................................................... 29
4 Revision History
Changes from Original (January 2014) to Revision A
Page
• Changed format to meet latest data sheet standards; added Layout section, moved existing sections ............................... 1
• Deleted Ordering Information table ........................................................................................................................................ 3
• Changed Supply Current, I_DVDD parameter typical specification in Electrical Characteristics: ADS7251 table...................... 5
• Changed Supply Current, I_DVDD parameter typical specification in Electrical Characteristics: ADS7851 table...................... 6
• Changed Input Voltage column in Table 1 ........................................................................................................................... 20
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