Reference design links analogue and FPGA for high speed/precision data acquisition

September 09, 2014 // By Graham Prophet
Achieving high-precision, high-speed digital control loops is a challenge for designers. The MAXREFDES74# DAS provides an 18-bit acquisition analogue input and output front end for applications demanding high precision and high-speed data conversion based on FPGA digital processing.

MAXREFDES74# plugs directly into a standard FPGA I/O expansion (FMC) and is fully equipped with complete hardware, firmware for Zynq FPGAs, Maxim's PC-GUI, and Gerber files. The online GUI tool displays the performance of the signal chain and eliminates the need for scopes or other equipment to generate and analyse waveforms, greatly simplifying the evaluation and validation phase. MAXREFDES74# is a ready-made solution for analogue inputs and outputs built for FPGA-based systems. It is flexible and applicable for a wide range of industrial and medical applications, including test and measurement, instrumentation, industrial automation and process control.

The high performance, proven design and GUI simplifies system validation, calibration, and data analysis, offering a complete solution to optimise performance. Pin compatible 16- or 18-bit signal path ICs provide the ability to tune designs for a variety of FPGA systems in different applications. And, 16- and 18-bit solutions provide precision and accuracy; an integrated fast SAR data converter enables high speed data conversion.

The board is available for $95; evaluation software, GUI, and Gerber files are provided free with the board; more at Maxim's Reference Design Centre .

Maxim Integrated; www.maximintegrated.com