Data Acquisition Block for ECG Systems, discrete LEAD I ECG implementation Reference Design
TIPD116
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Key Document
-
TIPD116 Design File
(ZIP 1500 KB)
12 Jun 2013
- TIPD116 Verified Design Reference Guide
(PDF 1222 KB)
18 Jun 2013
Description
This TI Verified Design is for Electrocardiography (ECG), the measurement of the electrical activity of the heart, a method that requires a precision analog front end instrumentation gain stage, filtering, and high resolution digital conversion. This design features the methodology for achieving a LEAD I ECG measurement system designed from discrete analog components. Ultra low power is optimized by an instrumentation front end using an OPA2333 and is digitized by the 18 bit ADS8881.
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Features
- 18 Bit, 10ksps Sampling Rate
- 200Hz ECG Signals
- Optimization: ECG
- Power: 1.5mW @ AVDD = 3.3V
- Utilizes ADS8881 (18bit, 1Msps SAR ADC), OPA2333 (Input/INA), OPA313 + REF3330 (Reference)
- Theory
- Component Selection
- TINA-TI Simulation
- Schematics and PCB Layout
- Verification and Measured Performance
- Modification Options
See the Important Notice and Disclaimer covering reference designs and other TI resources.