ADS131M04IPWR

Analog To Digital Converters (ADC) Overview

The ADS131M04IPWR is a four-channel, 24-bit simultaneous sampling analog-to-digital converter (ADC) from Texas Instruments. It utilizes a sigma-delta architecture with an integrated low-drift 1.2V reference and programmable gain amplifiers offering gains of 1 to 128. The device supports data rates up to 64 kSPS, though typical operation is cited at 32 kSPS. It operates on dual 2.7 V to 3.6 V supplies for analog and digital domains. Key performance metrics include a signal-to-noise ratio of 100 dB, a power consumption of 3.3 mW at 3 V AVDD, and a resolution time of 244 ns. It is housed in a 20-pin TSSOP package and functions within a temperature range of -40°C to +125°C.

Analog To Digital Converters (ADC) Feature Summary

• Four-channel simultaneous sampling capability with differential inputs directly connectable to voltage dividers or current transformers.
• Integrated channel-to-channel phase calibration and offset/gain registers to eliminate signal chain errors.
• Programmable gain amplifiers with high input impedance options for direct sensor connection.
• Communication integrity ensured via cyclic redundancy check (CRC) on data input, output, and register maps.

Analog To Digital Converters (ADC) Applications

• Commercial and residential energy meters
• Power distribution circuit breakers
• Battery management systems

Analog To Digital Converters (ADC) Procurement Notes

Verify the specific suffix IPWR corresponds to the 20-pin TSSOP package and tape-and-reel shipping configuration. Confirm RoHS compliance status and moisture sensitivity level requirements prior to assembly. Ensure the ordering part number matches the exact silicon revision and functional specification required for the design.

Analog To Digital Converters (ADC) Selection Notes

Select this component when four simultaneous high-resolution channels are required for energy monitoring applications. Compare against the ADS131M02 if only two channels are needed, or the ADS131B04QPWRQ1 for automotive qualification. Verify that the 3.3 V supply range and SPI interface compatibility align with the system microcontroller.

Analog To Digital Converters (ADC) Part Context

This part belongs to the ADS131M series of multi-channel delta-sigma ADCs designed for metrology. It shares architectural similarities with the ADS131M02 but provides four channels instead of two. It differs from the automotive-grade ADS131B04QPWRQ1 by lacking AEC-Q100 qualification but offering similar industrial performance characteristics.

Analog To Digital Converters (ADC) Replacement Considerations

ADS131M02IPWR: Offers identical specifications but with only two channels instead of four.

Analog To Digital Converters (ADC) FAQ

What is the maximum data rate supported by the ADS131M04IPWR?

The device supports programmable data rates up to 64 kSPS, with typical documentation citing 32 kSPS operation.

Does the ADS131M04IPWR include an internal voltage reference?

Yes, it integrates a low-drift 1.2V internal reference voltage to reduce PCB area requirements.

How does the device ensure communication integrity?

It features a cyclic redundancy check (CRC) option that can be individually enabled on data input, data output, and the register map.