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ADS1292R

TIADS1292R

Texas Instruments
A commonly used integrated biopotential front-end and ADC option for ECG and respiration sensing.
NRND1,222 in stock
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Overview

The ADS1292R is a dual-channel, 24-bit delta-sigma analog-to-digital converter (ADC) with an integrated programmable gain amplifier (PGA), internal reference, and onboard oscillator. It is specifically designed for biopotential measurements, featuring a built-in respiration impedance measurement engine and a right leg drive (RLD) amplifier to reduce common-mode noise.

Why Choose This Part

The integration of the RLD amplifier and respiration measurement engine significantly reduces PCB area and component count compared to discrete solutions. It offers exceptional power efficiency with a 335 uA operating current per channel and flexible power-down and standby modes for extended battery life.

Applications

Portable ECG Monitors
Ideal for compact, battery-powered electrocardiogram devices due to its low power consumption of 335 uW per channel.
Respiration Rate Monitoring
Utilizes the integrated respiration impedance measurement circuitry to track breathing via thoracic impedance changes.
Sports and Fitness Wearables
Small 4x4 mm VQFN package and low power modes make it suitable for continuous heart rate and fitness tracking apparel.

Key Specifications

Mounting Type Surface Mount
Power (Watts) 740 uW
Number of Bits 24
Package / Case 32-VFQFN Exposed Pad
Number of Channels 2
Supplier Device Package 32-VQFN (4x4)
Voltage - Supply, Analog 2.7V ~ 5.25V
Voltage - Supply, Digital 1.7V ~ 3.6V

Getting Started

Evaluate the device using the ADS1292REVM-PDK performance demonstration kit, which includes the evaluation module and a motherboard for PC connectivity. Communication is handled via a standard SPI-compatible interface, and TI provides the Biosensing Control Software to simplify initial register configuration and data visualization.