ADS112U04IRTER

Analog To Digital Converters (ADC) Overview

The ADS112U04IRTER is a low-power, 16-bit analog-to-digital converter (ADC) from Texas Instruments, featuring four differential or single-ended input channels. It utilizes a sigma-delta architecture with an integrated programmable gain amplifier (PGA) and operates on a single supply voltage ranging from 2.3 V to 5.5 V for both analog and digital domains. The device supports a maximum sampling rate of 2 kSPS and communicates via a UART interface. Housed in a compact 16-pin WQFN package, it includes built-in features such as excitation current sources, a temperature sensor, and an internal oscillator. Designed for industrial applications, it functions reliably within a temperature range of -40°C to +125°C while consuming only 1.4 mW of power.

Analog To Digital Converters (ADC) Feature Summary

• Integrates a 16-bit sigma-delta ADC with a programmable gain amplifier and multiplexer for flexible signal conditioning.
• Provides four configurable input channels supporting both differential and single-ended measurement modes.
• Includes integrated excitation current sources suitable for driving resistive sensors like RTDs.
• Features a dedicated internal temperature sensor and oscillator for system monitoring and timing.

Analog To Digital Converters (ADC) Applications

• Industrial process control systems requiring high-precision temperature monitoring.
• Portable instrumentation utilizing battery-powered operation due to low power consumption.
• Data acquisition modules interfacing with resistive sensors using excitation current sources.
• Medical equipment requiring accurate signal conversion in compact form factors.

Analog To Digital Converters (ADC) Procurement Notes

Verify the specific suffix 'TER' indicates the reel packaging format when ordering. Confirm that the UART interface requirement aligns with the host microcontroller capabilities, as this variant differs from SPI-based counterparts in the same family. Ensure the WQFN-16 thermal pad soldering requirements are met during assembly to maintain reliability across the specified operating temperature range.

Analog To Digital Converters (ADC) Selection Notes

Select the ADS112U04IRTER when a UART interface is preferred over SPI for communication overhead reduction. Choose this model for applications requiring four input channels with integrated excitation currents. Consider alternative variants if higher sampling rates or different package types are necessary. Verify that the 2.3 V to 5.5 V supply range matches the system power design constraints.

Analog To Digital Converters (ADC) Part Context

This component belongs to the ADS112U04 series, which focuses on low-power, small-size solutions for precision data acquisition. It shares architectural similarities with other devices in the ADS112 family but distinguishes itself through its UART interface and specific channel configuration. The series targets cost-sensitive industrial and portable applications where space and power efficiency are critical design parameters.

Analog To Digital Converters (ADC) Replacement Considerations

Direct substitutes include ADS112U04IRTET for cut-tape packaging. For SPI interface requirements, consider ADS112C04 or ADS112S14 variants, noting differences in communication protocols and potentially power specifications.