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TIPD116
Data acquisition for ECG systems, discrete LEAD I ECG implementation reference design
TIPD116
Overview
This 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.
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
A fully assembled board has been developed for testing and performance validation only, and is not available for sale.
Design files & products
Design files
Download ready-to-use system files to speed your design process.
TIDR213.PDF (102 K)
Detailed schematic diagram for design layout and components
SLAC586.ZIP (1500 K)
Detailed schematic diagram for design layout and components
TIDR214.PDF (78 K)
Complete listing of design components, reference designators, and manufacturers/part numbers
TIDC162.ZIP (1295 K)
Design file that contains information on physical board layer of design PCB
Products
Includes TI products in the design and potential alternatives.
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Technical documentation
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| Type | Title | Date | ||
|---|---|---|---|---|
| * | User guide | TIPD116 Verified Design Reference Guide | Jun. 18, 2013 | |
| More literature | Precision Amplifier Quickstart Kit brochure (Rev. A) | Jan. 13, 2015 |
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