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

1 Introduction

The ADS7142-Q1 BoosterPack™ is a fully-assembled evaluation platform designed to highlight the ADS7142-Q1 features and various modes of operations that makes this device suitable for ultra-low-power, small-size sensor monitor applications.

The accompanying Precision ADC Motherboard (PAMB) development kit is used as a USB-to-PC GUI communication bridge, and example implementation of a master MCU to communicate with the ADS7142-Q1 through its I2C interface.

Note:

The BOOSTXL-ADS7142-Q1 requires an external master controller to evaluate the ADS7142-Q1.

The PAMB is controlled by commands received from the ADS7142-Q1 GUI, and returns data to the GUI for display and analysis. If the PAMB is not used, the BoosterPack™ plug-in module format of the BOOSTXL-ADS7142-Q1 board allows an alternative external host to communicate with the ADS7142-Q1.

The BOOSTXL-ADS7142-Q1 incorporates all required circuitry and components with the following features:

  • ADS7142-Q1 nano power, ultra-small, dual-channel sensor monitor with I2C interface and alert output
  • Optional low power voltage reference, TI’s REF3133-Q1, to generate a 3.3-V output to power the ADS7142-Q1 AVDD supply pin when the 5-V USB power from the PAMB
  • Optional adjustable linear regulator, TI’s TPS79933-Q1, to generate stable output voltage to power the ADS7142-Q1 DVDD pin when using the 5-V USB power from the PAMB
  • I2C interface for communication and configuration of modes available on the ADS7142-Q1

Figure 1-1 shows the ADS7142-Q1EVM architecture, identifying the key components and blocks previously listed.

GUID-B5F6E311-4BD8-4622-98B7-08892785FAA5-low.gifFigure 1-1 ADS7142-Q1 EVM Block Diagram