1 ADS8555EVM-PDK Evaluation Module

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.