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ADS1298ECG-FE/ADS1198ECG-FE Overview

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1.2 Introduction

The ADS1x98ECG-FE is intended for evaluating the ADS1298 and ADS1198 for ECG and EEG

applications. The digital SPI™ control interface is provided by the MMB0 Modular EVM motherboard that

connects to the ADS1x98ECG FE evaluation board. The ADS1x98ECG-FE (see Figure 1) is NOT a

reference design for ECG and EEG applications; rather, its purpose is to expedite evaluation and system

development. The output of the ADS1298 yields a raw, unfiltered ECG signal.

The MMB0 motherboard allows the ADS1x98 to be connected to the computer via an available USB port.

This manual shows how to use the MMB0 as part of the ADS1x98ECG-FE, but does not provide technical

details about the MMB0 itself.

This document covers the operation of the ADS1x98ECG-FE evaluation system. Throughout the

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

ADS1x98ECG-FE . For clarity of reading, this manual will refer only to the ADS1298ECG-FE or

ADS1x98ECG-FE, but operation of the ADS1198ECG-FE is identical, unless otherwise noted.

CAUTION

Many of the components on the ADS1x98ECG-FE are susceptible to damage

by electrostatic discharge (ESD). Customers are advised to observe proper

ESD handling precautions when unpacking and handling the EVM, including

the use of a grounded wrist strap, bootstraps, or mats at an approved ESD

workstation. An electrostatic smock and safety glasses should also be worn.

1.3 Supported Features

Hardware Features:

• Configurable for bipolar or unipolar supply operation

• Configurable for internal and external clock and reference via jumper settings

• Configurable for AC- or DC-coupled inputs

• Configurable for up to 12 standard ECG leads

• External Right Leg Drive (RLD) Reference (V

– V

)/2

• External Wilson central voltage

• Easy connectivity to popular ECG simulators

Software Features:

• Designed to display 12 lead ECG data

• Analysis tools including a virtual oscilloscope, histogram, FFT, and ECG display

• File printing for post-processing of raw ECG data

• Sets the ADS1298/ADS1198 register settings via easy-to-use graphic user interface (GUI) software

• Post-processing of ECG data using high-pass, low-pass, and 50/60Hz notch filters

1.4 Features Not Supported in Current Version

• Real-time data processing

• AC lead-off detection filters

• QRS detection algorithms

• Software PACE detection algorithms

1.5 ADS1x98ECG-FE Hardware

Figure 1 shows the hardware included in the ADS1x98ECG-FE kit. Contact the factory if any component is

missing. The latest software is available for download on the TI website at http://www.ti.com.

ADS1298ECG-FE/ADS1198ECG-FE SBAU171C–May 2010–Revised September 2012

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