ADS1282IPWR

Overview

The ADS1282IPWR is a high-resolution analog-to-digital converter manufactured by Texas Instruments, belonging to the ADS1282 series. It utilizes a delta-sigma architecture and features two differential input channels within a 28-pin TSSOP package. The device offers a resolution of 31 bits and supports a maximum sampling rate of 4 kS/s. It operates with an analog supply voltage ranging from 4.75 V to 5.25 V and a digital supply voltage between 1.65 V and 3.6 V. Key performance metrics include a signal-to-noise ratio of 130 dB, a power dissipation of 25 mW, and a differential nonlinearity of +/- 1 LSB. The component communicates via an SPI interface and includes an integrated programmable gain amplifier.

Feature Summary

• Integrates a programmable gain amplifier for flexible signal conditioning
• Supports differential input configurations for noise rejection
• Utilizes sigma-delta architecture for high-resolution conversion

Applications

• Seismic data acquisition systems
• High-precision industrial measurement equipment
• Medical instrumentation requiring ultra-high resolution

Procurement Notes

Verify the specific suffix against the manufacturer's current documentation to ensure compatibility with required packaging formats. Confirm that the ordering part number matches the intended tape-and-reel configuration versus tube packaging. Cross-reference the date code and lot information to meet project quality standards. Ensure the procurement source provides valid traceability documents for critical applications.

Selection Notes

Select this component when dual-channel, high-resolution data acquisition is required. Compare the 31-bit resolution and 4 kS/s speed against system bandwidth needs. Evaluate the separate analog and digital supply requirements for power management design. Consider the TSSOP-28 footprint for PCB layout constraints relative to alternative packages in the same family.

Part Context

This device is part of the ADS1282 family of ultra-high-resolution delta-sigma ADCs. It shares architectural similarities with the ADS1281 but provides additional channel count. The IPWR suffix indicates a specific surface-mount package variant optimized for automated assembly processes compared to through-hole or tube-only options.

Replacement Considerations

The ADS1282IPW serves as a tube-packaged equivalent within the same functional family. Verify pinout compatibility and electrical specifications before substitution. Check for any differences in moisture sensitivity levels or reflow soldering profiles between the reel and tube variants.