Hardware Pace Detection for ECG Reference Design TIPD111 (ACTIVE)

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Key Document


This Verified Design outlines a hardware pace detection solution for ECG using slope detection. The circuit is designed to work smoothly with the ADS1298 through the PACEOUT pins from the ADC directly feeding the input of the pace detection circuit. When a pace signal is detected, the output from the circuit is designed to latch a logic signal high to be read from a GPIO.

See more TI Precision Designs

  • Monitors for Signal from Pacemaker using slope detection
  • Outputs and latches an logic pin which can be monitored using a GPIO
  • Single Supply Solution
  • Designed to mate with ADS1298ECG-FE board

      This Verified Design Includes

    • Theory
    • Component Selection
    • TINA-TI Simulation
    • Schematics and PCB Layout
    • Verification and Measured Performance
    • Modification Options

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Schematic/Block Diagram

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Design Files

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TI Devices (4)

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Part Number Name Product Family Sample & Buy Design Kits & Evaluation Modules
ADS1298  8-Channel 24-bit ADC With Integrated ECG Front End  Analog-to-digital converters (ADCs)  Sample & Buy View Design Kits & Evaluation Modules
OPA348  1MHz, 45uA, RRIO, Single Op Amp  Operational amplifiers (op amps)  Sample & Buy View Design Kits & Evaluation Modules
SN74LVC2G00  Dual 2-Input Positive-NAND Gate  Gate  Sample & Buy View Design Kits & Evaluation Modules
TLV3401  Single Nanopower Open Drain Output Comparator  Amplifiers  Sample & Buy Not Available

CAD/CAE symbols

Part # Package | Pins CAD File (.bxl) STEP Model (.stp)
ADS1298 Download Download
Download Download
OPA348 Download Download
Download Download
Download Download
SN74LVC2G00 Download
Download Download
Download -
TLV3401 Download -
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Technical Documents

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User guides (1)
Title Type Size (KB) Date
PDF 794 18 Jun 2013
Design files (3)
Title Type Size (KB) Date
ZIP 746 20 Sep 2013
PDF 70 20 Sep 2013
PDF 161 20 Sep 2013
Related Tools & Software

Development Tools (1)

Name Part Number Tool Type
SPICE-based analog simulation program  TINA-TI  Circuit Design & Simulation 

Software (2)

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