ADS1100A5IDBVRG4

Analog To Digital Converters (ADC) Overview

The ADS1100A5IDBVRG4 is a precision, continuously self-calibrating 16-bit delta-sigma analog-to-digital converter (ADC) from Texas Instruments. It features a fully differential input stage and an integrated programmable gain amplifier (PGA) with selectable gains of 1, 2, 4, or 8. The device operates on a single power supply ranging from 2.7V to 5.5V and utilizes an I²C-compatible serial interface for communication. It supports data rates of 8, 16, 32, or 128 samples per second. The component is housed in a compact SOT-23-6 package and includes an internal system clock, eliminating the need for external oscillators.

Analog To Digital Converters (ADC) Feature Summary

• 16-bit resolution with no missing codes and integral nonlinearity of 0.0125% max
• Continuously self-calibrating architecture compensates for offset and gain errors
• Integrated PGA with gains of 1, 2, 4, or 8 for high-resolution small signal measurement
• Low noise performance of 4 µVp-p and low current consumption of 90 µA active mode

Analog To Digital Converters (ADC) Applications

• Portable instrumentation
• Industrial process control
• Smart transmitters
• Temperature measurement

Analog To Digital Converters (ADC) Procurement Notes

Verify the ordering suffix 'G4' indicates RoHS compliance and green material status as per Texas Instruments standards. Confirm the I²C address corresponds to the 'A5' variant (AD5), which is factory-set to binary 1001101. Ensure the tape and reel packaging quantity matches the required production volume, typically 3000 units for the DBVR package type.

Analog To Digital Converters (ADC) Selection Notes

Select this variant when a specific I²C slave address (AD5) is required to avoid bus conflicts in multi-device systems. The A5 designation fixes the last three bits of the 7-bit address to 101. Consider the input impedance characteristics, which vary with PGA setting, when designing front-end filtering circuits to prevent aliasing and ensure measurement accuracy.

Analog To Digital Converters (ADC) Part Context

This part belongs to the ADS1100 family of self-calibrating ADCs. The 'A5' suffix designates the specific I²C address configuration (AD5). The 'DBVR' indicates the SOT-23-6 surface-mount package with tape and reel shipping. The 'G4' suffix denotes environmental compliance. All variants in the ADS1100 series share identical electrical specifications and pinouts, differing only in their factory-programmed I²C addresses.

Analog To Digital Converters (ADC) Replacement Considerations

Direct functional replacements within the same family include ADS1100A0IDBVR through ADS1100A7IDBVR, provided the I²C address conflict is managed. Other ADS1100 variants are pin-compatible and electrically identical but require verification of the specific I²C address assigned to the replacement part number.