Electrocardiogram (ECG) Analog Front End Module for the C5515 ECG Medical Development Kit Status: NRND

TMDXMDKEK1258

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THIS PRODUCT IS NOT RECOMMENDED FOR NEW DESIGN
Replacement Products
Name	Number	Company	Tool Type
ADS1298ECG Front End Performance Demonstration Kit	ADS1298ECGFE-PDK	Texas Instruments	Development Boards/EVMs

Key Document

Solutions for Personal Medical Application Development (PDF 151 KB)
26 Jun 2009 3,593views

View all technical documents (6)

Description

View system block diagrams:

Electrocardiogram (ECG or EKG) Solution from Texas Instruments
Electrocardiogram (ECG or EKG) Front End Module (For the C5515 ECG MDK)

TMDXMDKEK1258 Electrocardiogram (ECG) Analog Front End (AFE) module module consists of the ECG AFE module, a a set of collateral and C5515 based application sample code to implement the ECG application. The ECG AFE combined with the C5515 DSP Evaluation Module delivers a complete signal chain solution to enable ECG developers to build a complete ECG system quickly for evaluation and get to production faster.

Features

ECG AFE module key components

ADS1258 – 16 channel, 24-bit sigma delta analog-to-digital converter (ADC)
INA 128 - precision, low power instrumentation amplifier
PCA9535 - remote 16-bit I²C and SMBus low-power I/O expander
TLV3404 - nanopower open drain output comparator
REF5025 - low-noise, very low drift precision voltage reference

The ADS1258 ADC is one of 27 components on the TMDXMDKEK1258 ECG AFE module. The input signals are processed by the ADS1258, which provides for 24 bits of resolution with no missing codes. Additionally, the ADS1258 provides very low latency, industry-leading speed and noise performance as well as a very low power consumption level – making it very suitable for portable applications.

A high-quality reference voltage is essential for achieving the best performance from the ADS1258. Noise and drift can degrade overall system performance. The REF5025 precision voltage reference provides excellent temperature drift (3ppm/°C), low noise of 3uVpp/V and 0.05% accuracy.

The INA128 provides not only for high input impedance to reduce loading of the signal, but also for high common mode rejection required for noise rejection when used in conjunction with low pass filters.

The ECG AFE module can seamlessly connect to various processor platforms, such as the C5515 EVM through standard interface.

ECG MDK Features

12 lead ECG output using 10 electrode input
0.05Hz to 150 Hz bandwidth
Leads off detection
Real-time 12 lead ECG waveform display on EVM LCD, one lead at a time
Real-time 12 lead ECG waveform display on PC, three leads at a time
Zoom function on X-axis (time) and Y-axis (amplitude)
Heart beat rate display
Recording of ECG data, and offline display option of recorded ECG data
Freeze option on PC application

Technical Collateral:

Hardware design information, including schematics, gerber file and BOM, is included in the CD included with the DS analog front end module. DS application sample code based on C5515 DSP and PC application software is now provided for FREE on our open source at: http://code.google.com/p/c5515-ezdsp/. Scroll down and look for the link: ADS1258 ECG MDK under C5515 EVM

Follow the registration and download instructions in the "read me first" card in the box to receive access to all three MDK application sample code and future updates online through www.ti.com/myregisteredsoftware.

EVALUATION BOARD/KIT/MODULE TOOL ("Tool") WARNINGS, RESTRICTIONS AND DISCLAIMER

For Feasibility Evaluation Only in Laboratory/Development Environments. Not for Medical Diagnostic Use.
This Tool is intended solely for evaluation and development purposes. It is not intended for diagnostic use and may not be used as all or part of an end equipment product.
This Tool should be used solely by qualified engineers and technicians who are familiar with the risks associated with handling electrical and mechanical components, systems and subsystems.

Your Obligations and Responsibilities.
Please consult the User’s Guide prior to using the Tool. Any use of the Tool outside of the specified operating range may cause danger to the users and/or produce unintended results, inaccurate operation, and permanent damage to the Tool and associated electronics. You acknowledge and agree that:

You are responsible for compliance with all applicable Federal, State and local regulatory requirements (including but not limited to Food and Drug Administration regulations, UL, CSA, VDE, CE, RoHS and WEEE,) that relate to your use (and that of your employees, contractors or designees) of the Tool for evaluation, testing and other purposes.
You are responsible for the safety of you and your employees and contractors when using or handling the Tool. Further, you are responsible for ensuring that any contacts or interfaces between the Tool and any human body are designed to be safe and to avoid the risk of electrical shock.
You will defend, indemnify and hold TI, its licensors and their representatives harmless from and against any and all claims, damages, losses, expenses, costs and liabilities (collectively, "Claims") arising out of or in connection with any use of the Tool that is not in accordance with the terms of this agreement. This obligation shall apply whether Claims arise under the law of tort or contract or any other legal theory, and even if the Tool fails to perform as described or expected.

Technical Documents

TI Wikis (1)

Title	Date
Development Tools, Operating Systems and Embedded Software Wikis - for TI Embedded Processors	08 Aug 2011

Application Notes (2)

Title	Abstract	Type	Size (KB)	Date	Views
ADS1298-based ECG Implementation on C5515 DSP Medical Development Kit	Read Abstract	PDF	1152	26 Jan 2011	1,645
ECG Implementation on the TMS320C5515 DSP Medical Development Kit (Rev. B)	Read Abstract	PDF	1493	29 Jun 2010	2,705

More Literature (3)

Title	Type	Size (KB)	Date	Views
Electrocardiogram Analog Front End Module (Rev. A)	PDF	76	12 Aug 2009	1,248
Solutions for Personal Medical Application Development	PDF	151	26 Jun 2009	3,593
Medical Development Kit - Electrocardiogram Analog Front End Module Demo [WMV]	WMV	15934	25 Jun 2009	371

Support and Community

Wikis

processors.wiki.ti.com

Topics	Category	Last modified	Views
C5000 Connected Audio Framework	C5000, C5000 Software	02 Feb 2012 12:00 AM	8,171
55x FAQ	C5000	12 Jan 2012 12:00 AM	34,912
C5000 Chip Support Library	C5000	28 Nov 2011 12:00 AM	9,214
C5515 EVM FAQ	C5000	02 Feb 2012 12:00 AM	7,487
DSPLIB	C5000	08 Feb 2012 12:00 AM	18,924

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