Datasheet

ADS1209EVM Overview

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1 ADS1209EVM Overview

1.1 Features

ADS1209EVM:

• Full-featured evaluation module for the ADS1209 two-channel, ΔΣ modulator

• 9-pin sub-D connector for interfacing to the AMC1210 digital filter evaluation module

• Screw terminals for easy access to analog inputs

1.2 Introduction

The ADS1209EVM is an evaluation board for the ADS1209 two-channel ΔΣ modulator. This EVM features

a 9-pin, female sub-D connector that allows digital outputs from the ADS1209 to be fed directly to the

AMC1210 digital filter chip.

The ADS1209 is a two-channel modulator that offers 86-dB dynamic performance, operating from a single

5-V supply. When used in combination with the AMC1210 or other digital filter, the ADS1209 can be used

to achieve 16-bit analog-to-digital (A/D) conversion with no missing codes.

For use in high-resolution measurement applications, an effective accuracy of 14 bits can be obtained with

a digital filter bandwidth of 20 kHz at a modulator rate of 10 MHz.

Throughout this document, the abbreviation EVM and the term evaluation module are synonymous with

the ADS1209EVM.

2 Analog Interface

The analog input to the ADS1209 is routed from a five-wire screw terminal screw at J1. This screw

terminal gives the user access to the inverting and noninverting inputs of both channels of the ADS1209.

A convenient ground terminal is also provided.

ADS1209EVM SBAU167–March 2010

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