ADS1120IPWR

Analog To Digital Converters (ADC) Overview

The ADS1120IPWR is a low-power, low-noise, 16-bit analog-to-digital converter (ADC) designed for small-signal sensor applications. It features a sigma-delta architecture with an integrated programmable gain amplifier (PGA), internal reference, and temperature sensor. The device supports four differential or eight single-ended inputs via an onboard multiplexer. It operates on a single supply voltage ranging from 2.3 V to 5.5 V for both analog and digital domains. The ADC delivers a maximum data rate of 2 kSPS and communicates through a standard SPI interface. It is housed in a 16-pin TSSOP package suitable for surface-mount assembly.

Analog To Digital Converters (ADC) Feature Summary

• Integrated excitation current sources (iDACs) for direct sensor excitation
• Built-in 50 Hz and 60 Hz rejection filters for noise suppression
• Onboard oscillator eliminates the need for external clock components
• Configurable PGA allows signal conditioning prior to conversion

Analog To Digital Converters (ADC) Applications

• Industrial process control systems requiring precise measurement
• Portable battery-powered instrumentation devices
• Medical equipment utilizing strain gauges or thermocouples
• Weigh scales and load cell interfaces

Analog To Digital Converters (ADC) Procurement Notes

Verify the specific suffix against official Texas Instruments documentation to confirm pinout compatibility and electrical specifications. Ensure the procurement channel provides valid traceability for the component. Confirm that the delivered units match the requested package type and quality grade. Check for any specific handling requirements related to moisture sensitivity levels before storage.

Analog To Digital Converters (ADC) Selection Notes

Select this component when high resolution and low power consumption are critical for small-signal sensing tasks. Consider the integrated PGA and reference if board space is limited. Evaluate the input configuration needs to determine if the four-channel capability suffices. Compare performance metrics against higher-resolution alternatives if greater precision is required for the application.

Analog To Digital Converters (ADC) Part Context

This part belongs to the ADS1120 family of precision ADCs from Texas Instruments. It shares architectural similarities with other members like the ADS1118 but offers distinct channel counts and feature sets. The IPWR suffix indicates a tape-and-reel packaging format intended for automated surface-mount production lines.

Analog To Digital Converters (ADC) Replacement Considerations

ADS1120IPW serves as the tube-packaged equivalent within the same series. For automotive-grade requirements, the ADS1120QPWRQ1 is the qualified alternative. Verify pin compatibility and software register mapping before substituting these parts.