SBAU279 October   2020 ADS7038-Q1

 

  1.   Trademarks
  2. 1Introduction
  3. 2ADS7038Q1EVM-PDK Overview
    1. 2.1 Connections to Input Channels
    2. 2.2 Digital Interface
    3. 2.3 ADS7038Q1EVM-PDK PAMBoard Interface
    4. 2.4 Power Supplies
  4. 3ADS7038Q1EVM-PDK Initial Setup
    1. 3.1 EVM Plug-In Hardware Setup Instructions
    2. 3.2 The ADS7038 GUI Online and TI Cloud Agent Application Installation
    3. 3.3 ADS7038Q1EVM-PDK GUI Overview
      1. 3.3.1 ADS7038Q1EVM-PDK GUI Landing Page
      2. 3.3.2 ADS7038 Functional Configuration
        1. 3.3.2.1 Device Mode Configuration
        2. 3.3.2.2 Channel Selection
        3. 3.3.2.3 Channel Configuration
          1. 3.3.2.3.1 Input Channel Configuration
          2. 3.3.2.3.2 Output Channel Configuration
          3. 3.3.2.3.3 Alert Configuration
        4. 3.3.2.4 Averaging & Statistics
        5. 3.3.2.5 Cyclic Redundancy Check (CRC)
      3. 3.3.3 Data Capture Tab
        1. 3.3.3.1 Analog Input Data Capture Features
          1. 3.3.3.1.1 Time Domain Display
          2. 3.3.3.1.2 FFT
          3. 3.3.3.1.3 Histogram Display
      4. 3.3.4 Digital Input Page
      5. 3.3.5 Register Map
  5. 4Input Signal-Conditioning Circuitry on the ADS7038Q1EVM
  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

2.1 Connections to Input Channels

The ADS7038Q1EVM-PDK is designed for easy interface to an external, analog single-ended source, or to GPIOs through a 100-mil header. Connector J5 provides a connection to the device channels. Table 2-1 lists the channel connections. The AIN0 channel features an operational amplifier, TLV9061, to drive the analog input. This is further explained in Section 4. Channels AIN1 through AIN6 have a resistor and capacitor filter circuit to condition the analog input, as Figure 1-1 shows. Channel 7 is hardware configured to demonstrate GPIO functionality. GPIO7 has a resistor and light-emitting diode (LED) to visibly demonstrate and monitor digital output channel state. The LED illuminates when the GPIO7 is logic LOW.

Table 2-1 Channel Connections

J5 Connector Pin

Description

J5:1

Single-ended analog input with buffer

J5:2

Single-ended analog input or GPIO for channel 1 of the ADC

J5:5

Single-ended analog input or GPIO for channel 2 of the ADC

J5:6

Single-ended analog input or GPIO for channel 3 of the ADC

J5:7

Single-ended analog input or GPIO for channel 4 of the ADC

J5:8

Single-ended analog input or GPIO for channel 5 of the ADC

J5:11

Single-ended analog input or GPIO for channel 6 of the ADC

J5:12

LED GPO for channel 7 of the ADC

J5:3 and J5:4; J5:9 and J5:10

EVM ground

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