SBAU321B November   2018  – June 2021 ADS7142 , ADS7142-Q1

 

  1.   Trademarks
  2. 1Introduction
  3. 2BOOSTXL-ADS7142-Q1 EVM Overview
    1. 2.1 Connectors for Single-Ended Analog Input
    2. 2.2 Digital Interface
    3. 2.3 ADS7142-Q1 Digital I/O Interface
    4. 2.4 Power Supplies
  4. 3BOOSTXL-ADS7142-Q1 EVM Initial Setup
    1. 3.1 Running ADS7142-Q1 GUI Online and TI Cloud Agent Application Installation
    2. 3.2 Hardware Setup Instructions
    3. 3.3 ADS7142-Q1 GUI Description
      1. 3.3.1 Description
      2. 3.3.2 REGMAP
      3. 3.3.3 Functional Mode
      4. 3.3.4 General Instructions
  5. 4ADS7142-Q1 GUI Functional Modes
    1. 4.1 Autonomous Mode
      1. 4.1.1 Start Burst Mode
      2. 4.1.2 Stop Burst Mode
      3. 4.1.3 Pre Alert Mode
      4. 4.1.4 Post Alert Mode
    2. 4.2 High Precision Mode
    3. 4.3 Manual Mode
      1. 4.3.1 Default Mode
      2. 4.3.2 Auto Mode
    4. 4.4 Temperature Monitoring Using BOOSTXL-ADS7142-Q1
    5. 4.5 Input Signal Conditioning Block on the BOOSTXL-ADS7142-Q1
  6. 5Bill of Materials, Printed-Circuit Board Layout, and Schematics
    1. 5.1 Bill of Materials
    2. 5.2 PCB Layout
    3. 5.3 Schematics
  7. 6Revision History

2.4 Power Supplies

The device supports a wide range of operation on its analog supplies. The AVDD can operate from 1.65 V to 3.6 V. The DVDD operates from 1.65 V to 3.6 V, independent of the AVDD supply. The 3.3 V voltage regulator available on the PAMB is used to supply 3.3 V to both AVDD and DVDD on the BOOSTXL-ADS7142-Q1.

There is an onboard option to use an ultra-low power voltage reference REF3133-Q1 (U2) to generate 3.3 V supply for the ADS7142-Q1 AVDD pin. Voltage variants of REF3330 can be used to generate supply other than 3.3 V for the ADS7142-Q1 AVDD pin. To generate a DVDD supply other than 3.3 V, an adjustable version of the TPS799-Q1 regulator (U3) can be used.