SLAU298A November   2009  – May 2021

 

  1.   Trademarks
  2. 1ADS8555EVM-PDK Overview
    1. 1.1 ADS8555EVM-PDK Features
    2. 1.2 ADS8555EVM Features
  3. 2EVM Analog Interface
    1. 2.1 ADC Supply, Input, Voltage Reference, and Digital Connections
    2. 2.2 ADC Amplifier Drive
  4. 3Digital Interface
    1. 3.1 Parallel Interface
    2. 3.2 Serial Interface (SPI)
    3. 3.3 I2C Bus and EEPROM
    4. 3.4 Connections to the PHI Connector
  5. 4Power Supplies
    1. 4.1 External Power Connections and Test Points
    2. 4.2 Low-Dropout Regulator (TPS7A3001 for HVSS)
    3. 4.3 Low-Dropout Regulator (TPS7A4700 for AVDD, HVDD)
  6. 5Installing the ADS8555EVM Software
  7. 6ADS8555EVM Operation
    1. 6.1 Connecting the Hardware and Running the GUI
    2. 6.2 Jumper Settings for the ADS8555EVM
    3. 6.3 Modifying Hardware and Using Software to Evaluate Other Devices in the Family
    4. 6.4 EVM GUI Global Settings for ADC Control and Registers
    5. 6.5 Time Domain Display
    6. 6.6 Frequency Domain Display
    7. 6.7 Histogram Display
  8. 7Bill of Materials, Layout, and Schematics
    1. 7.1 Bill of Materials
    2. 7.2 Board Layout
    3. 7.3 Schematics
  9. 8Revision History

1 ADS8555EVM-PDK Evaluation Module

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This user's guide describes the operation and use of the ADS8555 evaluation module (EVM). The ADS8555 is a 6-channel, simultaneous sampling, 16-bit successive approximation (SAR) analog-to-digital converter (ADC). Each input channel on the device can support true bipolar input ranges up to ±12 V. The device includes a programmable, internally buffered voltage reverence. The ADC includes a serial programming interface (SPI) interface and a parallel interface (word and byte mode) for data communication. Device configuration is achieved through simple static digital input pins (hardware mode) or through communications to the SPI interface (control register configuration in software mode). This user's guide covers the circuit description, schematic diagram, and bill of materials for the ADS8555 circuit board. This EVM hardware and software can also be used to support the ADS8556, ADS8557, and ADS8558 devices from this family. Other devices can be tested by desoldering the ADC and reprogramming the EVM (see Section 6.3). Detailed instructions for using other family members are provided later in this document.