ADS1112IDGSRG4

Analog To Digital Converters (ADC) Overview

The ADS1112IDGSRG4 is a precision, continuous self-calibrating analog-to-digital converter (ADC) from Texas Instruments. It features a sigma-delta architecture with 16-bit resolution and supports two differential or three single-ended input channels. The device operates on a single supply voltage ranging from 2.7V to 5.5V for both analog and digital domains. It offers programmable data rates of 15, 30, 60, or 240 samples per second (SPS). An onboard 2.048V reference provides an input range of ±2.048V, while the integrated programmable gain amplifier (PGA) supports gains up to 8x. Communication is handled via an I²C-compatible serial interface with selectable slave addresses.

Analog To Digital Converters (ADC) Feature Summary

• Continuous self-calibration mechanism ensures high measurement accuracy without external calibration procedures.
• Integrated programmable gain amplifier allows for flexible signal conditioning and high-resolution measurement of small signals.
• Onboard 2.048V voltage reference establishes a fixed input range for consistent performance across operating conditions.
• I²C-compatible serial interface with configurable address pins enables efficient system integration and multi-device addressing.

Analog To Digital Converters (ADC) Applications

• Portable instrumentation devices requiring low power consumption and high resolution
• Industrial process control systems utilizing smart transmitters
• Battery-powered measurement applications where space and energy efficiency are critical

Analog To Digital Converters (ADC) Procurement Notes

Verify the complete part number including the RG4 suffix to ensure compliance with RoHS3 standards and lead-free specifications. Confirm the package type corresponds to the 10-VSSOP variant as indicated by the DGSR designation. Cross-reference the manufacturer datasheet to validate the specific revision level and ensure compatibility with existing design constraints before finalizing procurement orders.

Analog To Digital Converters (ADC) Selection Notes

Select this component when a 16-bit resolution ADC is required with minimal external circuitry. The internal reference and PGA reduce bill of materials complexity compared to discrete solutions. Ensure the application utilizes an I²C bus and that the maximum sampling rate of 240 SPS meets the bandwidth requirements. Verify that the supply voltage range aligns with the system's available power rails.

Analog To Digital Converters (ADC) Part Context

This device belongs to the ADS1112 family of precision ADCs. It shares architectural similarities with other members in the series but is distinguished by its specific pinout and packaging configuration. The IDGSRG4 designation indicates the industrial temperature range, VSSOP package, and tape-and-reel delivery format. It serves as a direct replacement for previous iterations lacking the G4 suffix regarding environmental compliance.

Analog To Digital Converters (ADC) Replacement Considerations

The ADS1112IDGSR is the non-RoHS3 predecessor with identical electrical characteristics. The ADS1112IDGST offers the same functionality in a TSSOP-10 package, requiring footprint adaptation. No alternative functional substitutes exist within the immediate TI portfolio that match these exact specifications and interface protocols.