This application note describes how to interface parallel ADCs to ADSP-21365 SHARC® processors. The parallel ADC considered in this application note is the AD7865. The two schemes described in this application note to interface an AD7865 with an ADSP-21365 are the parallel port interface and the parallel data acquisition port (PDAP) interface. This application note also provides examples of how to use the PDAP interface to connect AD7865 to ADSP-21365.
This document details the interfacing of the AD7865, a 14-bit simultaneous sampling A/D converter, with third-generation SHARC processors like the ADSP-21365. It covers two specific connection schemes: the standard parallel port interface and the Parallel Data Acquisition Port (PDAP) interface.
| Resolution | 14-bit A/D converter |
|---|---|
| Channels | Four channels |
| Sampling Speed | 2.4 us |
| Supply Voltage | Single 5 V supply |
| Power Consumption | 115 mW (typical) |
The document describes two schemes: the parallel port interface and the parallel data acquisition port (PDAP) interface.
The device supports four simultaneous sampling channels.