ADS1271IPWG4

Analog To Digital Converters (ADC) Overview

The ADS1271IPWG4 is a single-channel, 24-bit delta-sigma analog-to-digital converter (ADC) manufactured by Texas Instruments. It operates with a sampling rate of 105 kSPS and features a signal bandwidth of 51 kHz. The device achieves a signal-to-noise ratio (SNR) of 109 dB and exhibits low offset drift of 1.8 µV/°C. It utilizes an external reference and communicates via an SPI interface. Power requirements include an analog supply of 4.75 V to 5.25 V and a digital supply of 1.65 V to 3.6 V. The component is housed in a 16-pin TSSOP package and supports operation within a temperature range of -40°C to +105°C.

Analog To Digital Converters (ADC) Feature Summary

• Combines high DC accuracy with wide AC bandwidth for precision measurement applications.
• Features daisy-chainable architecture for multi-channel system expansion.
• Integrates digital filters with passband ripple of ±0.005 dB and stopband attenuation of 100 dB.

Analog To Digital Converters (ADC) Applications

• Industrial process control systems requiring high-precision data acquisition.
• Medical equipment utilizing accurate physiological signal monitoring.
• Automotive sensor interfaces demanding robust performance across wide temperature ranges.

Analog To Digital Converters (ADC) Procurement Notes

Verify the specific suffix G4 indicates lead-free composition and RoHS compliance when sourcing. Confirm the TSSOP-16 package dimensions match the target PCB footprint. Ensure the external voltage reference meets the required noise and stability specifications to maintain the ADC's specified SNR performance. Validate that the host microcontroller SPI timing aligns with the device's clock requirements.

Analog To Digital Converters (ADC) Selection Notes

Select this component when a single channel requires both high resolution and wide bandwidth simultaneously. Consider the ADS1274 or ADS1278 if multiple channels are needed while maintaining similar performance characteristics. Evaluate power consumption constraints as the device dissipates approximately 92 mW under typical operating conditions. Ensure the application can accommodate the necessary external passive components and reference voltage source.

Analog To Digital Converters (ADC) Part Context

This part belongs to the ADS1271 family of high-performance industrial ADCs from Texas Instruments. It serves as the foundational single-channel design upon which multi-channel variants like the ADS1274 and ADS1278 are based. The IPWG4 designation specifies the industrial temperature grade, tube packaging, and lead-free finish, distinguishing it from other commercial or tape-and-reel variants within the same functional family.

Analog To Digital Converters (ADC) Replacement Considerations

The ADS1271IBPW is a functionally equivalent alternative within the same series. Verify pin compatibility and electrical parameter alignment before substitution. Ensure the replacement variant meets the specific temperature and packaging requirements of the existing design.