ADS1110A2IDBVR

Analog To Digital Converters (ADC) Overview

The ADS1110A2IDBVR is a precision, continuous self-calibrating analog-to-digital converter (ADC) featuring a sigma-delta architecture and a 16-bit resolution. It operates on a single supply voltage ranging from 2.7 V to 5.5 V for both analog and digital domains. The device incorporates an internal 2.048 V reference, enabling a differential input range of ±2.048 V. It supports I2C-compatible serial interfaces and includes a programmable gain amplifier (PGA) with gains up to 8. The component offers selectable data rates of 15, 30, 60, or 240 samples per second and functions within a temperature range of -40°C to +125°C in a compact SOT-23-6 package.

Analog To Digital Converters (ADC) Feature Summary

• Continuous self-calibration mechanism ensures high accuracy without external calibration routines.
• Integrated programmable gain amplifier allows measurement of small signals with high resolution.
• Internal oscillator and voltage reference eliminate the need for external components.
• Automatic power-down in single-shot mode significantly reduces current consumption during idle periods.

Analog To Digital Converters (ADC) Applications

• Portable battery-powered instruments requiring low power consumption
• Industrial process control systems with I2C connectivity
• Smart transmitters for sensor signal conditioning

Analog To Digital Converters (ADC) Procurement Notes

Verify the specific suffix 'A2' against the manufacturer datasheet to confirm the fixed address configuration. Ensure the ordering part number matches the required tape-and-reel packaging format. Confirm RoHS compliance status through official documentation before procurement.

Analog To Digital Converters (ADC) Selection Notes

Select this model when a fixed I2C slave address is acceptable for the system design. Compare the 16-bit resolution and PGA capabilities against lower-resolution alternatives if signal integrity is critical. Verify that the SOT-23-6 package dimensions fit the available PCB space constraints.

Analog To Digital Converters (ADC) Part Context

This component belongs to the Texas Instruments ADS1110 family of 16-bit delta-sigma ADCs. Variants within the series differ primarily by their I2C slave address configurations, indicated by the middle letter in the part number. The ADS1110 series is designed for applications prioritizing precision and miniaturization over high-speed sampling.

Analog To Digital Converters (ADC) Replacement Considerations

ADS1110A0IDBVR: Offers identical electrical specifications but utilizes a different fixed I2C slave address. Verify address conflicts in the target system before substitution.

Analog To Digital Converters (ADC) FAQ

What is the function of the internal oscillator?

The integrated oscillator provides the clock source for the sigma-delta modulator, removing the requirement for an external clock generator and simplifying the circuit design.

How does the PGA affect the input range?

The programmable gain amplifier scales the input signal before conversion. With a maximum gain of 8, it allows the device to resolve smaller differential voltages while maintaining the full-scale range defined by the internal 2.048 V reference.

What is the purpose of the self-calibration feature?

Self-calibration automatically corrects for offset and gain errors within the ADC, ensuring high linearity and accuracy across the operating temperature range without user intervention.