ADS1292IRSMR

Analog Front End (AFE) Overview

The ADS1292IRSMR is a Texas Instruments analog front-end (AFE) designed for biopotential measurements. It integrates two 24-bit, simultaneous-sampling delta-sigma ADCs with programmable gain amplifiers (PGA), internal reference, and on-chip oscillator. The device supports data rates up to 8 kSPS and operates on an analog supply of 2.7 V to 5.25 V and a digital supply of 1.7 V to 3.6 V. Key electrical specifications include a maximum power consumption of 700 µW and integral nonlinearity (INL) of 2 ppm. It is housed in a 32-pin VQFN package rated for operation between -40°C and +85°C.

Analog Front End (AFE) Feature Summary

• Dual-channel 24-bit simultaneous-sampling ADC architecture
• Integrated PGA, internal voltage reference, and oscillator
• Low power consumption of 700 µW per channel
• Built-in right-leg drive (RLD) and lead-off detection capabilities

Analog Front End (AFE) Applications

• Portable electrocardiogram (ECG) systems
• Ambulatory monitoring devices
• Fitness and sports tracking equipment

Analog Front End (AFE) Procurement Notes

Verify the specific suffix 'IRSMR' against the official datasheet to confirm the package type (VQFN-32) and temperature range (-40°C to +85°C). Ensure compatibility with the required SPI interface and supply voltages during component sourcing.

Analog Front End (AFE) Selection Notes

Select this component for applications requiring high-resolution biopotential acquisition with minimal power usage. Compare against the ADS1292R variant if enhanced performance features are necessary, and verify that the 32-VQFN footprint fits the PCB layout constraints.

Analog Front End (AFE) Part Context

This part belongs to the ADS129x family of low-power analog front-ends for biopotential measurements. It serves as a core signal conditioning component in medical and health-monitoring electronics, providing integrated amplification and digitization for ECG and similar bio-signals.

Analog Front End (AFE) Replacement Considerations

The ADS1292RIRSMT is a documented alternative within the same series. Verify pinout compatibility and functional equivalence before substitution.