TI ADS1x9x心電圖模擬前端(ECG FE)解決方案

Easy-to-use evaluation software for Microsoft? Windows XP or Windows 7

Built-in analysis tools including oscilloscope, FFT, and histogram displays

Flexible input configurations

Integrated Respiration Impedance

Digital Low Pass, High Pass, and 50/60Hz notch filters for post processing

Real time data streaming from the demo board to the PC

Ability to export data in simple test files for post processing

圖4. ADS1x9xECG-FE演示板外形圖

The board can be assembled with any of these chips. ADS1292, ADS1292R and ADS1192 demonstration kits are available. The MSP430 firmware and PC application are designed to automatically detect the installed part and configure to accommodate the part.

該版本所支持的特性:

1. Four electrode ECG cable support

2. View six ECG Leads: Lead I, Lead II, Lead III, Lead aVR, Lead aVL, Lead aVF and respiration channel (ADS1292R only) .

3. Two modes of operation: Evaluation and Live ECG / Respiration

4. Acquire data at up to 8 kHz in Evaluation mode

5. Current based Lead off detection

6. USB based power and PC application connectivity

7. Access to all ADS1x9x registers via an easy to use GUI.

8. Built-in time domain, histogram, FFT and ECG / Resp related analysis on the PC application

9. Live ECG with heart rate calculation.

10. Live Respiration wave with respiration rate calculation

11. USB based firmware upgrade option

12. MSP430 Firmware debugging using ez430 USB emu

ADS1x9xECG-FE演示板主要特性:

The key features of the ADS1x9x analog front end demonstration board are:

? Based on MSP430F5529

? ADS1192 and ADS1292 suitable for six leads of ECG: Lead I, Lead II, Lead III, Lead aVR, Lead aVL, or Lead aVF

? ADS1292R suitable for one lead of ECG (Lead I) and respiration channel

? Low power consumption (350 Micro Watt/channel)

? Data Rate ranges from 125 SPS to 8 kSPS

? Unipolar Operation

? Lead off detection circuitry

? On chip oscillator and reference

? On chip RLD amplifier

? SPI data interface

? 8Gb NAND Flash support

圖5.ADS1x9xECG-FE演示板框圖

圖6.ADS1x9xECG-FE演示板電路圖(1)

圖7.ADS1x9xECG-FE演示板電路圖(2)

圖8.ADS1x9xECG-FE演示板電路圖(3)

圖9.ADS1x9xECG-FE演示板電路圖(4)

圖10.ADS1x9xECG-FE演示板電路圖(5)

圖11.ADS1x9xECG-FE演示板電路圖(6)

ADS1x9xECG-FE演示板材料清單(BOM):

圖12.ADS1x9xECG-FE演示板元件布局圖:頂層

圖13.ADS1x9xECG-FE演示板元件布局圖:底層

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