NAU8402WG

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The NAU8402WG is a special purpose AD/DA converter that is often used for power meter applications. This high performance device is specifically designed to measure peak and RMS values in power systems and is compatible with a wide range of industry standard power systems. The NAU8402WG has a high dynamic range and can accurately capture both small and large changes in the voltage or current.

The NAU8402WG is a differential input-to-output 16-bit AD/DA converter that utilizes 4-wire SPI for control and serial port for data exchange. It is powered by a single +3V to +5.5V supply and provides a low power operation mode to reduce power consumption.

The NAU8402WG provides a high accuracy voltage or current sensing capability with a 12-bit resolution and a 16-bit signed offset capability. A high precision ADC is integrated into the device, allowing for simultaneous measurement of multiple signals with a wide dynamic range. The NAU8402WG also features a full-scale range setting for gain selection, allowing for higher accuracy measurement when higher input voltages are present.

The NAU8402WG has a low noise floor of 2.1uVrms and a reference bandwidth of 2.2MHz. It has built-in filtering to minimize interference from external sources and built-in temperature compensation to minimize temperature errors. The NAU8402WG also offers a wide variety of digital functions such as programmable scaling and digital integration.

The NAU8402WG application field is wide and varied. It can be used in a variety of power related applications such as monitoring power consumption in residential and commercial buildings, power grid usage and power factor correction, monitoring electric motors and automotive electronics, metering of transformers and measuring the range of voltage change in electrical equipment. The NAU8402WG can also be used for general purpose applications such as thermocouple and strain gauge measurements, pH and refractometer measurements and even level detection.

The working principle of the NAU8402WG is straightforward. The device has two power rails, one for input and one for output. The device continuously monitors the input voltage and converts it to a digital signal. The output voltage is then compared to the reference voltage to determine the power and other current measurements. The NAU8402WG can also be configured to measure multiple signals simultaneously, providing a large amount of data to work with.

The NAU8402WG is optimized for power related applications, providing an ideal combination of low noise, wide dynamic range and low power consumption. It is a high performance, cost-effective solution for applications requiring accurate measurements of voltage, power and other current related measurements.

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