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AD7799BRUZ

AD7799BRUZ

Analog Devices
Analog to Digital Converters - ADC 3 Channel, 24-Bit SD ADC, PGA & REF IC
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Overview

The AD7799BRUZ is a high-precision, ultra-low noise 24-bit sigma-delta analog-to-digital converter designed for high-resolution measurement applications. It features an integrated low-noise instrumentation amplifier with programmable gain, allowing it to interface directly with low-level signals from bridges or pressure sensors.

Why Choose This Part

This ADC offers exceptionally low noise performance (27 nV at 4.17 Hz) and consumes very little power, making it ideal for battery-operated portable instruments. The internal programmable gain amplifier (PGA) and flexible clocking options reduce external component count and simplify the analog front-end design.

Applications

Weigh Scales
High-resolution measurement for industrial and consumer digital scales using load cell sensors.
Pressure Measurement
Direct interface to bridge-based pressure transducers in industrial process control.
Strain Gauge Analyzers
Precise monitoring of structural deformation in aerospace and civil engineering applications.
Gas Chromatography
Detecting minute voltage changes in chemical analysis instrumentation.

Getting Started

Engineers should evaluate this part using the EVAL-AD7799EBZ board, which allows for quick prototyping of sensor interfaces. Communication is handled via a standard 3-wire SPI-compatible interface, and the device requires a stable reference voltage such as the ADR3425 for maximum precision.