ADS1292IRSMT

Analog Front End (AFE) Overview

The ADS1292IRSMT is a Texas Instruments analog front-end (AFE) featuring two synchronized 24-bit delta-sigma analog-to-digital converters (ADCs). It integrates programmable gain amplifiers, an internal reference, and an on-board oscillator. The device operates with analog supply voltages between 2.7V and 5.25V and digital supplies from 1.7V to 3.6V. Power consumption is specified at 740 µW. It supports data rates up to 8kSPS and utilizes a 32-pin VQFN package measuring 4mm x 4mm.

Analog Front End (AFE) Feature Summary

• Two-channel 24-bit ADC with integrated PGA and internal reference
• Low power consumption of 740 µW
• Flexible input multiplexers for test signals, temperature monitoring, and lead-off detection
• Integrated right leg drive (RLD) output generation

Analog Front End (AFE) Applications

• Portable electrocardiogram (ECG) systems
• Wearable respiratory rate registration modules using bioimpedanceometry
• Sports and fitness monitoring devices

Analog Front End (AFE) Procurement Notes

Verify the specific suffix 'IRSMT' against the manufacturer's current datasheet to confirm pinout compatibility and electrical specifications. Ensure that any ordering suffixes do not alter the functional characteristics unless explicitly documented by Texas Instruments. Cross-reference the component marking with official identification guides.

Analog Front End (AFE) Selection Notes

Select this component for applications requiring low-power, high-resolution biopotential signal acquisition. The 24-bit resolution and integrated PGA are suitable for detecting small physiological signals. Verify that the 32-VQFN package dimensions fit the target PCB layout constraints and thermal requirements.

Analog Front End (AFE) Part Context

This part belongs to the ADS1292 family of analog front-ends designed for medical and health monitoring applications. It shares core functionality with variants like the ADS1292IRSMR but differs in packaging and potentially ordering suffixes. The series is optimized for creating scalable, compact medical instrument systems.

Analog Front End (AFE) Replacement Considerations

Direct substitutes within the same family include the ADS1292IRSMR. Verify package compatibility and ensure that any alternative parts maintain the required 24-bit resolution and dual-channel architecture for equivalent performance.