ADS131M03IRUKT

Analog To Digital Converters (ADC) Overview

The ADS131M03IRUKT is a three-channel, simultaneously-sampling, 24-bit delta-sigma analog-to-digital converter (ADC) manufactured by Texas Instruments. It operates with 2.7-V to 3.6-V analog and digital supplies and supports data rates up to 64 kSPS. The device features programmable gain amplifiers with gains ranging from 1 to 128 and an integrated low-drift 1.2-V voltage reference. Electrical specifications include a dynamic range of 102 dB at gain 1 and 80 dB at gain 64, both measured at 4 kSPS. Total harmonic distortion is specified at -100 dB, with crosstalk between channels at -120 dB. The component is housed in a leadless 20-pin WQFN package.

Analog To Digital Converters (ADC) Feature Summary

• Three differential inputs with simultaneous sampling capability for synchronized multi-phase measurements
• Integrated channel-to-channel phase calibration and offset/gain registers to minimize signal-chain errors
• Programmable gain amplifier supporting gains from 1 to 128 with high-impedance inputs for direct sensor connection
• Fast startup time allowing first data output within 0.5 ms of supply ramp

Analog To Digital Converters (ADC) Applications

• Electricity meters for commercial and residential use
• Circuit breakers and protection relays
• Power quality meters
• Battery test equipment and battery management systems

Analog To Digital Converters (ADC) Procurement Notes

Verify the ordering suffix IRUKT corresponds to the WQFN package and tape-and-reel shipping configuration. Confirm that the specific revision level matches the design requirements. Ensure the supplier provides documentation confirming RoHS compliance and material declarations as required by the project specifications.

Analog To Digital Converters (ADC) Selection Notes

Select this component when simultaneous sampling across multiple phases is required for accurate power measurement. The integrated 1.2-V reference reduces external component count compared to devices requiring external references. Evaluate the available gain settings against the expected input signal levels to ensure optimal dynamic range usage without saturation.

Analog To Digital Converters (ADC) Part Context

This part belongs to the ADS131M series of energy metering ADCs. It shares functional similarities with the ADS131M02 and ADS131M04 but differs in channel count. The IRUKT designation specifically identifies the WQFN package variant intended for surface-mount assembly.

Analog To Digital Converters (ADC) Replacement Considerations

ADS131M03IPWT: Identical electrical performance in a TSSOP-20 package instead of WQFN.