ADS1112IDGSTG4

Analog To Digital Converters (ADC) Overview

The ADS1112IDGSTG4 is a precision, continuous self-calibrating analog-to-digital converter (ADC) manufactured by Texas Instruments. It features a delta-sigma architecture with 16-bit resolution and supports two differential or three single-ended input channels. The device integrates an onboard 2.048V reference voltage, providing a ±2.048V input range. It operates on a single power supply ranging from 2.7V to 5.5V for both analog and digital domains. The ADS1112IDGSTG4 communicates via an I²C-compatible serial interface with configurable address pins. It offers programmable data rates of 15, 30, 60, or 240 samples per second (SPS). An onboard programmable gain amplifier (PGA) supports gains up to 8x. The component is housed in a 10-VSSOP package and functions within a temperature range of -40°C to +85°C.

Analog To Digital Converters (ADC) Feature Summary

• Integrates a high-precision delta-sigma ADC with onboard self-calibration capabilities to maintain accuracy without external components.
• Features a flexible input multiplexer supporting either two fully differential inputs or three single-ended inputs.
• Includes an internal 2.048V reference voltage source and a programmable gain amplifier to optimize signal measurement ranges.
• Utilizes a standard I²C serial interface with selectable slave addresses to minimize microcontroller pin usage.

Analog To Digital Converters (ADC) Applications

• Portable battery-powered instrumentation
• Industrial process control systems
• Smart transmitters

Analog To Digital Converters (ADC) Procurement Notes

Verify the specific suffix 'G4' against the manufacturer's current datasheet to confirm RoHS compliance status and lead times. Ensure the ordering quantity aligns with the tape-and-reel packaging requirements specified by the distributor. Cross-reference the part number with official Texas Instruments documentation to validate availability and manufacturing lifecycle status before finalizing procurement plans.

Analog To Digital Converters (ADC) Selection Notes

Select this component when high resolution and low power consumption are critical constraints. The integrated PGA and reference simplify circuit design compared to discrete solutions. Verify that the required sampling rate does not exceed 240 SPS and that the input signals fit within the ±2.048V range defined by the internal reference. Confirm compatibility with the host system's I²C bus voltage levels.

Analog To Digital Converters (ADC) Part Context

This part belongs to the ADS111x family of precision ADCs from Texas Instruments. It shares architectural similarities with the ADS1113, ADS1114, and ADS1115 but is distinguished by its specific channel configuration and fixed internal reference. The 'IDGSTG4' designation indicates the industrial temperature grade, VSSOP-10 package, and green/RoHS-compliant termination finish.

Analog To Digital Converters (ADC) Replacement Considerations

The MS1112 is documented as a pin-to-pin compatible alternative offering similar 16-bit resolution and channel configurations. Other members of the ADS111x family may serve as functional substitutes if channel counts or interface requirements differ slightly.