ADS131M03IPWT

Analog To Digital Converters (ADC) Overview

The ADS131M03IPWT is a three-channel, simultaneously-sampling, 24-bit delta-sigma analog-to-digital converter 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. Key performance metrics 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, while crosstalk between channels is -120 dB. The component is housed in a 20-pin TSSOP package and functions within an industrial temperature range of –40°C to +125°C.

Analog To Digital Converters (ADC) Feature Summary

• Three simultaneously sampling differential inputs with high-impedance characteristics for direct sensor connection
• Integrated channel-to-channel phase calibration and offset/gain calibration registers to remove signal-chain errors
• Optional cyclic redundancy checks on communications and register map to maintain communication integrity
• Fast startup capability delivering first data within 0.5 ms of supply ramp

Analog To Digital Converters (ADC) Applications

• Electricity meters: commercial and residential
• Circuit breakers
• Protection relays
• Power quality meters
• Battery test equipment

Analog To Digital Converters (ADC) Procurement Notes

Verify the specific ordering suffix against the manufacturer's official documentation to confirm the package type and tape-and-reel specifications. Ensure that the procurement source provides valid traceability and authenticity guarantees. Confirm compliance with RoHS directives and environmental standards required for your manufacturing process before finalizing orders.

Analog To Digital Converters (ADC) Selection Notes

Select this component when simultaneous multi-channel sampling is required for energy metering or power metrology applications. Evaluate the programmable gain settings against the expected input signal levels from current transformers or Rogowski coils. Consider the integrated 1.2-V reference and phase calibration features to simplify the analog front-end design and reduce printed circuit board area requirements.

Analog To Digital Converters (ADC) Part Context

This part belongs to the ADS131M03 series of delta-sigma analog-to-digital converters designed for high-precision measurement tasks. The IPWT suffix indicates a 20-pin Thin-Shrink Small-Outline Package (TSSOP) variant intended for surface-mount assembly. It shares core architectural features with other members of the family but differs in physical packaging dimensions and thermal characteristics.

Analog To Digital Converters (ADC) Replacement Considerations

Consult the manufacturer's product selection guide for alternative packages such as the WQFN variant. Verify pin compatibility and electrical specifications if substituting with other devices in the ADS131Mxx series.