ADS131M08IPBS

Analog To Digital Converters (ADC) Overview

The ADS131M08IPBS is an eight-channel, simultaneous-sampling, 24-bit delta-sigma analog-to-digital converter (ADC) manufactured by Texas Instruments. It operates with a maximum sampling rate of 32 kSPS and accepts differential inputs via an SPI interface. The device utilizes sigma-delta architecture and includes an internal 1.2 V reference. It supports analog and digital supply voltages ranging from 2.7 V to 3.6 V. Key performance metrics include a signal-to-noise ratio of up to 101 dB and a spurious-free dynamic range of 103 dB. The component features a programmable gain amplifier with gains from 1 to 128, a gain error of 0.3%, and power dissipation of 21.5 mW. It is housed in a 32-pin TQFP package and functions within a temperature range of -40°C to +125°C.

Analog To Digital Converters (ADC) Feature Summary

• Integrated channel-to-channel phase calibration, offset, and gain calibration registers to eliminate signal chain errors.
• Optional cyclic redundancy check (CRC) for data input, output, and register mapping to ensure communication integrity.
• Low-noise programmable gain amplifier providing gain settings from 1 to 128 for amplifying low-level signals.
• Built-in low-drift 1.2 V reference voltage source to reduce printed circuit board area requirements.

Analog To Digital Converters (ADC) Applications

• Electric energy metering systems
• Power metering applications
• Circuit breaker implementations

Analog To Digital Converters (ADC) Procurement Notes

Verify the specific ordering suffix against official Texas Instruments documentation to confirm package type and tape-and-reel specifications. Ensure compatibility with industrial temperature ratings and humidity sensitivity levels before procurement. Cross-reference the manufacturer part number with authorized distributor catalogs to validate authenticity and current production status.

Analog To Digital Converters (ADC) Selection Notes

Select this component when simultaneous multi-channel acquisition is required for high-precision measurement tasks. The integrated PGA and calibration features simplify design for sensors requiring signal conditioning. Verify that the system's microcontroller supports the required SPI interface speed and that the 32-TQFP package fits the available PCB footprint constraints.

Analog To Digital Converters (ADC) Part Context

This device belongs to the ADS131M series of precision analog front ends designed for metrology applications. It shares architectural similarities with other members like the ADS131M04 and ADS131E08 but offers eight channels for broader data acquisition needs. The IPBS suffix specifically denotes the 32-pin thin quad flatpack package variant suitable for surface-mount assembly.

Analog To Digital Converters (ADC) Replacement Considerations

The ADS131M08IPBSR is a verified substitute offering identical electrical characteristics and functionality but supplied in tape-and-reel packaging instead of trays. Other family members such as the ADS131M04 provide fewer channels, while the ADS131E08 offers different power supply ranges and pin counts.