ADS1112IDRCR

Analog To Digital Converters (ADC) Overview

The ADS1112IDRCR 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 differential input range of ±2.048V. It operates on a single power supply ranging from 2.7V to 5.5V for both analog and digital domains. Data conversion rates are selectable at 15, 30, 60, or 240 samples per second (SPS). An onboard programmable gain amplifier (PGA) offers gains up to 8x to accommodate small signal measurements. Communication is handled via an I2C-compatible serial interface with configurable address pins.

Analog To Digital Converters (ADC) Feature Summary

• Integrates a high-precision 16-bit delta-sigma ADC with an onboard 2.048V reference source
• Features a multiplexer supporting two differential or three single-ended input channels
• Includes a programmable gain amplifier (PGA) with selectable gain settings up to 8x
• Utilizes an I2C-compatible serial interface with dual address pins for multi-device systems

Analog To Digital Converters (ADC) Applications

• Portable battery-powered instruments requiring low power consumption
• Industrial process control systems and smart transmitters
• High-resolution measurement applications in space-constrained designs

Analog To Digital Converters (ADC) Procurement Notes

Verify the package type carefully, as the IDGSR suffix denotes VSSOP while IDRCR typically indicates a VSON package. Confirm the specific datasheet revision matches the required performance characteristics. Ensure the I2C address configuration aligns with the system design. Check for RoHS compliance status if environmental regulations apply to the target market.

Analog To Digital Converters (ADC) Selection Notes

Select this component when 16-bit resolution and low data rates are sufficient for the application. The internal reference eliminates the need for external components, reducing board space. Consider the PGA functionality if measuring signals smaller than the reference voltage. Verify that the I2C bus speed compatibility exists with the host microcontroller.

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 ADS1110 and ADS1114 but differs in channel count and interface capabilities. The IDRCR variant specifically utilizes a 10-VSON package, distinguishing it from the MSOP/VSSOP packages found in other suffixes like IDGSR or IDGST within the same product line.

Analog To Digital Converters (ADC) Replacement Considerations

ADS1112IDGSR: Pin-compatible alternative in a VSSOP package.

Analog To Digital Converters (ADC) FAQ

What is the maximum sampling rate of the ADS1112IDRCR?

The device supports sampling rates of 15, 30, 60, and 240 samples per second (SPS).

How many input channels does the ADS1112 support?

It provides two differential input channels or three single-ended input channels through its internal multiplexer.

Does the ADS1112 require an external voltage reference?

No, it includes an onboard 2.048V reference voltage generator.