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Cupertino: 16bit multi-input isolated AFE

Posted: 16 Apr 2013     Print Version  Bookmark and Share

Keywords:FPGAs  microcontrollers  analogue-to-digital converters 

Today's field programmable gate arrays (FPGAs) and microcontrollers with internal analogue-to-digital converters (ADCs) are capable of low-resolution and low-voltage analogue inputs. However, they fall short on being able to meet the needs of industrial control and industrial automation applications, where isolation, higher resolutions, and higher voltage system solutions are often needed. The Cupertino (MAXREFDES5#) sub-system reference design is a 16- industrial analogue front end (AFE) that accepts -10V to +10V, 0 to 10V, and 4–20mA current loop signals with isolated power and data integrated into a small form factor.

This document explains how the Cupertino (MAXREFDES5#) sub-system reference design meets the higher resolution, higher voltage, and isolation needs of industrial control and industrial automation applications. Hardware and firmware design files as well as FFTs and histograms from lab measurements are provided.

View the PDF document for more information.

Originally published by Maxim Integrated Products Inc. at as "Cupertino (MAXREFDES5#): 16bit High Accuracy Multi-Input Isolated Analog Front End (AFE)".

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