AD7714ARSZ-3

Overview

The AD7714ARSZ-3 is a 24-bit, low-noise analog-to-digital converter (ADC) from Analog Devices. It features a five-channel programmable gain front end with gains ranging from 1 to 128 and supports both fully differential and pseudo-differential input configurations. The device operates on a single +3 V supply and utilizes a sigma-delta conversion technique to achieve high precision. It includes an on-chip digital filter with programmable cutoff frequencies and a three-wire serial interface compatible with SPI, QSPI, Microwire, and DSP systems.

Feature Summary

• Integrates a five-channel programmable gain amplifier for direct transducer interfacing
• Features a sigma-delta architecture providing 24-bit resolution without missing codes
• Includes an on-chip digital filter with selectable notch frequencies for noise rejection
• Supports flexible serial communication via a three-wire interface

Applications

• Portable industrial instruments
• Portable weigh scales
• Loop-powered measurement systems
• Pressure transducers

Procurement Notes

Verify the specific ordering suffix against the manufacturer's current documentation to confirm package type and temperature range. Ensure that the component matches the required voltage specifications and pinout configuration before integration into the design.

Selection Notes

Select this model when a single +3 V supply is required for the analog section. Confirm compatibility with the system's microcontroller interface protocols. Evaluate the available gain settings against the expected signal amplitude to ensure optimal dynamic range usage.

Part Context

This component belongs to the AD7714 family of signal conditioning ADCs. Variants within the series differ primarily in operating voltage requirements, temperature ranges, and physical package styles. The ARSZ designation indicates a surface-mount thin shrink small outline package variant designed for space-constrained applications.

Replacement Considerations

Direct replacements include other members of the AD7714 family such as the AD7714AR-3 or AD7714YRUZ-3, provided they match the required supply voltage and package dimensions.