ADS1112IDRCTG4

Analog To Digital Converters (ADC) Overview

The ADS1112IDRCTG4 is a precision, continuous self-calibrating analog-to-digital converter (ADC) from Texas Instruments. It features a 16-bit resolution and supports two differential or three single-ended input channels within a compact VSON-10 package. The device integrates an on-chip 2.048V reference voltage, providing a ±2.048V input range. It utilizes an I2C-compatible serial interface with configurable address pins for multi-device systems. Powered by a single supply ranging from 2.7V to 5.5V, 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 x8, enabling high-resolution measurement of small signals.

Analog To Digital Converters (ADC) Feature Summary

• Continuous self-calibration mechanism ensures long-term accuracy without external calibration routines.
• Integrated PGA allows amplification of low-level signals for enhanced measurement resolution.
• I2C serial interface with selectable addresses simplifies system integration and wiring.
• Automatic power-down after conversion minimizes current consumption in idle states.

Analog To Digital Converters (ADC) Applications

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

Analog To Digital Converters (ADC) Procurement Notes

Verify the specific suffix 'DGSR' versus 'DRCR' when sourcing, as these denote different physical packages (MSOP vs. VSON). Confirm RoHS compliance status and lead times directly with authorized distributors. Ensure the ordering part number matches the required package type for your PCB footprint design.

Analog To Digital Converters (ADC) Selection Notes

Select this component when high resolution and low power are critical constraints. The ADS1112 is suitable for applications requiring fewer channels than the ADS1114 or ADS1115 but needing similar precision. Consider the VSON package size if board space is limited compared to the MSOP variant.

Analog To Digital Converters (ADC) Part Context

This part belongs to the ADS111x family of precision ADCs. It shares architectural similarities with the ADS1113, ADS1114, and ADS1115, differing primarily in channel count and package options. The IDRCTG4 designation indicates the industrial temperature range and specific packaging configuration within the broader product line.

Analog To Digital Converters (ADC) Replacement Considerations

The ADS1113 serves as a single-channel alternative. For more channels, consider the ADS1114 (4-channel) or ADS1115 (4-channel). Cross-package equivalents include the ADS1112IDGSRG4 (MSOP-10). Verify pin compatibility and software register settings before substitution.

Analog To Digital Converters (ADC) FAQ

What is the maximum sampling rate of the ADS1112?

The maximum sampling rate is 240 samples per second (SPS).

Does the ADS1112 require an external reference voltage?

No, it includes an internal 2.048V reference voltage.

How many I2C addresses can be configured?

Two address pins allow for eight unique I2C slave addresses.