ADS1271IBPW

Overview

The ADS1271IBPW is a single-channel, 24-bit industrial delta-sigma analog-to-digital converter (ADC) manufactured by Texas Instruments. It operates with a sampling rate of 105 kSPS and supports a signal bandwidth up to 51 kHz. The device features differential input configuration and communicates via an SPI interface. It requires an analog supply voltage between 4.75 V and 5.25 V and a digital supply voltage ranging from 1.65 V to 3.6 V. Key performance metrics include a signal-to-noise ratio (SNR) of 109 dB, differential nonlinearity (DNL) of ±1 LSB, and integral nonlinearity (INL) of ±0.0015% FSR. The component is housed in a 16-pin TSSOP package and functions within a temperature range of -40°C to +105°C.

Feature Summary

• Combines high DC accuracy with wide AC bandwidth for precision measurement applications
• Supports daisy-chainable operation for multi-channel system expansion
• Integrates digital filtering with low passband ripple and high stopband attenuation

Applications

• Test and measurement equipment requiring high-precision data acquisition
• Vibration analysis systems for machinery monitoring
• Medical instrumentation demanding low noise and high resolution

Procurement Notes

Verify the specific ordering suffix to confirm package type and tape-and-reel versus tube packaging options. Ensure compatibility with external reference voltage requirements, as the device utilizes an external reference architecture. Confirm moisture sensitivity level handling procedures during assembly to maintain component integrity.

Selection Notes

Select this component when both high sampling rates and low drift specifications are critical. The ADS1271IBPW is suitable for designs needing a single-channel solution with integrated digital filtering capabilities. Consider the power consumption constraints, as the device dissipates approximately 92 mW under typical operating conditions.

Part Context

The ADS1271 belongs to the ADS1271 series of wide-bandwidth ADCs from Texas Instruments. This series addresses the gap between traditional industrial converters with limited bandwidth and audio-grade converters with poor DC stability. The IBPW variant specifically denotes the industrial temperature range and TSSOP-16 surface-mount package configuration.

Replacement Considerations

Publicly confirmed substitute part numbers include ADS1271IBPWR for reel-packaged versions and ADS1271IBPWG4 for lead-free compliant variants. Verify pinout and electrical specifications against datasheet revisions before substitution.