This user's guide describes the characteristics, operation, and use of the ADS1298ECG-FE and ADS1198ECG-FE. The ADS1298ECG-FE and ADS1198ECG-FE are evaluation modules for the ADS1298, an eight-channel, 24-bit, and ADS1198, an eight-channel, 16-bit, analog-to digital converter (ADC). Both devices provide low-power, integrated analog front-end (AFE) designs for patient monitoring and portable and high-end electrocardiogram (ECG) and electroencephalogram (EEG) applications. This user's guide includes a complete circuit description, schematic diagram, and bill of materials.
The following related documents are available through the Texas Instruments web site at www.ti.com.
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CAUTION
NOTICE: The ADS1298ECG-FE and ADS1198ECG-FE are intended for feasibility and evaluation testing only in laboratory and development environments. This product is not for diagnostic use. This product is not for use with a defibrillator.
The ADS1298ECG-FE/ADS1198ECG-FE is to be used only under these conditions:
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.
Hardware Features:
Software Features:
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.
The complete kit includes the following items: