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ADC317

ADC Module, 8 channels 1.2MSPS @ 16 bit; 200MB/sec Digital Bus Interface

Overview

ADC317 offers a building block for scalable Analogue to Digital data collections starting from 8 channels and reaching as many as 256 channels by cascading eight ADC317s together. The single width Module has eight AD7723. from Analog Device Inc. and these are 16-bit complete sigma-delta ADC converters with a 1.2MSPS sampling rate. This device has on-chip filtering combined with a high over-sampling-ratio reduces the external anti-alias requirements to first order in most cases. They are interfaced to a Xilinx Virtex FPGA that controls the ADC converters and also provide the data-route of the converted analogue signals.

The data can either be routed to the 200MB/sec bus interface and the control of the ADC are done with the help of a Comm-Port (the 8-bit data parallel inter-processor ports of the 'C4x processor).

The FPGA has plenty of spare resources and can be re-programmed via Comm-port and an EPLD to perform pre-processing of the converted data, control some of the external I/O pins or other customer specific requirements.

Key Features:

	Single width Data Acquisition Module
	Simultaneous 8 channel 16-bit Analogue to data conversion
	Uses AD7723 1.2MSPS Sigma Delta converters
	Xilinx Virtex 300 FPGA to perform pre-processing functions
	External Clock Input
	Huber & Suhner's MMBX connector for signal connections
	Four 20Mbytes/s comm-ports
	One 200MB/sec Digital Bus Interface
	12 months warranty

Benefits

	Ideal for high channel count data acquisition systems
	Memory mapped ADCs provide simple programming interface
	Telecommunication systems
	Adaptive Control Systems
	Sonar
	ADSL Development Systems

Layout for the ADC317 (PDF):

CLICK for Block Diagram (PDF):

User Manual (PDF)

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