SBAU351 April   2021

 

  1.   Trademarks
  2. 1EVM Overview
    1. 1.1 ADS127L11EVM Kit
    2. 1.2 ADS127L11EVM Board
    3. 1.3 ADS127L11EVM-PDK-GUI Unsupported Features
  3. 2EVM Analog Interface
    1. 2.1 EVM Analog Input Options
    2. 2.2 ADC Connections and Decoupling
    3. 2.3 ADC Input Drive Amplifiers
    4. 2.4 VCOM Buffer
    5. 2.5 Onboard Voltage Reference
    6. 2.6 External Voltage Reference
    7. 2.7 Clock Tree
  4. 3Digital Interface
    1. 3.1 Serial Interface (SPI)
    2. 3.2 I2C Bus for Onboard EEPROM
  5. 4Power Supplies
    1. 4.1 Power Connection and Configuration
    2. 4.2 Low Dropout Regulator (LDO)
  6. 5ADS127L11EVM Software Installation
  7. 6EVM Operation
    1. 6.1 Connecting the Hardware
    2. 6.2 Optional Connections to the EVM
    3. 6.3 EVM GUI Global Settings for ADC Control
    4. 6.4 Time Domain Display
    5. 6.5 Frequency Domain Display
    6. 6.6 Histogram Display
  8. 7Bill of Materials, Schematics, and Layout
    1. 7.1 Bill of Materials
    2. 7.2 Board Layouts
    3. 7.3 Schematics
  9. 8References

6.4 Time Domain Display

The time domain display tool allows visualization of the ADC response to a given input signal. This tool is useful for both studying the behavior and debugging any gross problems with the ADC or drive circuits. The user can trigger a capture of the data of the selected number of samples from the ADS127L11 EVM, as per the current interface mode settings indicated in Figure 6-5 by using the Capture button. The sample indices are on the x-axis and there are two y-axes showing the corresponding output codes as well as the equivalent analog voltages based on the specified reference voltage. Switching pages to any of the Analysis tools described in the subsequent sections causes calculations to be performed on the same set of data.

GUID-CDD42258-3942-45B1-B4AC-418C7648B2A2-low.gifFigure 6-5 Time Domain Display