TIDA-010005

Software-Configurable Cardiac Pacemaker Detection Module Reference Design

TIDA-010005

Design files

Overview

This reference design implements a compact hardware-based circuit to detect the pacemaker pulse during ECG measurement. It provides indication of valid pace signal through a flag and onboard LED. This design enables the user to configure various parameters of the pace signal (amplitude, rise time, pulse duration, polarity) with software using an onboard DAC. The measured values can be read through an onboard ADC. The Pace signal is extracted, amplified, and conditioned from the noisy ECG signal on the board. It adds the Pace detection feature while used in conjunction with TI’s ADS129X series of devices.

Features
  • Programmable thresholds for detecting : rise time (30 μs to 200 μs), amplitude (8 mV to 700 mV), duration (0.1 μs to 2000 μs) and polarity of pace pulse
  • Availability of measured parameters and conditioned pace signal on I2C bus for further analysis and processing conditioned pace signal on I2C bus for further analysis and processing
  • Interface with TI’s ADS129X series of ECG front-end devices
  • Enables identification of various types of pacemaker signals
  • Compact form factor (29 mm × 35 mm)

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.

TIDUE99.PDF (15136 K)

Reference design overview and verified performance test data

TIDRX45.PDF (606 K)

Detailed schematic diagram for design layout and components

TIDRX46.PDF (298 K)

Complete listing of design components, reference designators, and manufacturers/part numbers

TIDRX47.PDF (289 K)

Detailed overview of design layout for component placement

TIDRX49.ZIP (1936 K)

Files used for 3D models or 2D drawings of IC components

TIDCEW0.ZIP (563 K)

Design file that contains information on physical board layer of design PCB

TIDRX48.PDF (1479 K)

PCB layer plot file used for generating PCB design layout

Products

Includes TI products in the design and potential alternatives.

AND gates

SN74AUP2G082-ch, 2-input, 0.8-V to 3.6-V low power AND gates

Data sheet document-pdfAcrobat PDF
Analog switches & muxes

SN74LVC1G31575-V, 2:1 (SPDT), 1-channel general-purpose analog switch

Data sheet document-pdfAcrobat PDF open-in-new HTML
Comparators

TLV1702Dual high voltage, low power comparator

Data sheet document-pdfAcrobat PDF open-in-new HTML
Counters

SN74LV4040A12-Bit Asynchronous Binary Counter

Data sheet document-pdfAcrobat PDF
General-purpose op amps

TLV9062Dual, 5.5-V, 10-MHz operational amplifier

Data sheet document-pdfAcrobat PDF open-in-new HTML
Instrumentation amplifiers

INA317Micro-power (50µA), zero-drift (75µV offset, 0.3µV/˚C), precision RRO instrumentation amplifier

Data sheet document-pdfAcrobat PDF open-in-new HTML
Inverting buffers & drivers

SN74AUP3G143-ch, 0.8-V to 3.6-V low power inverters with Schmitt-Trigger inputs

Data sheet document-pdfAcrobat PDF
Precision ADCs (<=10MSPS)

ADS714212-bit 140-kSPS 2-ch nanopower SAR ADC with 1.8-V operation in 1.5-mm x 2-mm QFN package

Data sheet document-pdfAcrobat PDF open-in-new HTML
Precision DACs (<=10MSPS)

DAC55788-bit, Octal Channel, Ultra-Low Glitch, Voltage Output, 2-Wire Interface DAC

Data sheet document-pdfAcrobat PDF
Series voltage references

REF29303-V, 100-ppm/°C, 50-µA in 3-pin SOT-23 package series (bandgap) voltage reference

Data sheet document-pdfAcrobat PDF open-in-new HTML

Technical documentation

star
= Top documentation selected by TI
No results found. Please clear your search and try again.
View all 2
Type Title Date
* Design guide Software-Configurable Cardiac Pacemaker Detection Module Reference Design Sep. 18, 2018
Technical article Designing compact, efficient and high performing multiparameter patient monitors Jun. 25, 2019

Support & training

TI E2E™ forums with technical support from TI engineers

View all forum topics

Content is provided "as is" by TI and community contributors and does not constitute TI specifications. See terms of use.

If you have questions about quality, packaging or ordering TI products, see TI support. ​​​​​​​​

Videos