AD7796BRUZ

The AD7796BRUZ from Analog Devices is a 16-bit Sigma-Delta Analog-to-Digital Converter (ADC) specifically engineered for high-precision applications, particularly those involving bridge sensors like weigh scales and strain gauges. This device integrates a Σ-Δ ADC with an on-chip instrumentation amplifier that provides a fixed gain of 128, enabling direct interfacing with small amplitude signals.

The AD7796BRUZ operates with a supply voltage ranging from 2.7V to 5.25V and maintains functionality across an industrial temperature range of -40°C to +85°C. It supports a flexible data interface compatible with SPI, QSPI, MICROWIRE, and DSP protocols, with a maximum sampling rate of 123 Hz. Key features include low power consumption, typically 250 µA, and a power-down current of just 1 µA.

This ADC includes an internal temperature sensor that can be utilized for temperature compensation, enhancing measurement accuracy. It also offers simultaneous 50 Hz/60 Hz rejection, crucial for industrial process control applications. The device is housed in a compact 16-lead TSSOP package, suitable for surface mounting.

Applications for the AD7796BRUZ include weigh scales, strain gage measurements, industrial process control systems, and portable instrumentation where high accuracy and low power are essential.