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

4.5 Input Signal Conditioning Block on the BOOSTXL-ADS7142-Q1

For applications where the input signal requires additional conditioning before being interfaced to the ADC, the BOOSTXL-ADS7142-Q1 has an optional signal conditioning path that can be populated between the input signal and the ADS7142-Q1. The board has a provision to introduce a dual-channel operational amplifier (U4) which can be configured in either a non-inverting buffer or inverting gain configuration based on the signal conditioning requirement. By default, this signal conditioning block is not populated on the evaluation board. In order to use this block, populate the operational amplifier U4 and the associated biasing components based on the required op-amp configuration (non-inverting buffer or inverting configuration). See Section 5.3 for more details.