ADS131M02IPWT

Analog To Digital Converters (ADC) Overview

The ADS131M02IPWT is a two-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 features programmable data rates up to 64 kSPS and programmable gain from 1 to 128. The device achieves a dynamic range of 102 dB at gain = 1 and 4 kSPS, with a total harmonic distortion of -100 dB. It includes an integrated low-drift 1.2-V voltage reference and negative charge pump for input signals below ground. The component is housed in a 20-pin TSSOP package and supports operation over an industrial temperature range of –40°C to +125°C.

Analog To Digital Converters (ADC) Feature Summary

• Simultaneous sampling of two differential inputs with independent channel configuration
• Integrated low-drift internal voltage reference and negative charge pump
• Programmable channel-to-channel phase delay calibration for signal-chain error removal
• Cyclic redundancy check (CRC) support on communications and register map

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 matches the exact part number required for the intended PCB footprint and manufacturing process. Cross-reference the datasheet revision history to confirm the availability of production data versus preview status for the selected package variant.

Analog To Digital Converters (ADC) Selection Notes

Select this component when simultaneous sampling of two channels is required for energy metering or power metrology applications. Evaluate the noise performance and dynamic range requirements against the available gain settings and data rates. Consider the integration of the internal voltage reference and programmable gain amplifier to simplify the analog front-end design and reduce printed circuit board area.

Analog To Digital Converters (ADC) Part Context

The ADS131M02 belongs to the ADS131M series of high-precision, multi-channel delta-sigma analog-to-digital converters. This family is designed for applications requiring wide dynamic range and low power consumption, such as electricity meters and protection relays. The IPWT suffix indicates the 20-pin Thin Shrink Small Outline Package (TSSOP) variant with tape-and-reel packaging.

Analog To Digital Converters (ADC) Replacement Considerations

ADS131M03IPWT

Analog To Digital Converters (ADC) FAQ

What is the maximum programmable data rate for the ADS131M02?

The maximum programmable data rate is 64 kSPS.

Does the ADS131M02 support input signals below ground?

Yes, the device integrates a negative charge pump that allows input signals below ground.

What is the typical dynamic range at a gain of 1 and a data rate of 4 kSPS?

The typical dynamic range is 102 dB at a gain of 1 and a data rate of 4 kSPS.