NAU8402WG TR

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NAU8402WG TR is a low power, high accuracy analog to digital converter, targeted mainly for data acquisition applications. The 4-channel, 8-bit ADC includes a self-calibration feature that enables it to automatically adjust the internal parameters to ensure maximum accuracy performance. With the embedded variable low-pass filter and variable clock rate, it allows various data types to be acquired and digitized efficiently. The multi-channel architecture also enhances the sampling accuracy, thus reducing the complexity of the application circuitry.

The main benefits of using NAU8402WG TR in data acquisition applications include:

• High resolution analog-to-digital conversion – The 8-bit ADC delivers 0.5℃ accurate temperature measurements.
• Low power consumption – With its low-power always-active mode and a wide operating temperature range between -40℃ and +105℃, the device is power-efficient and suited for battery powered applications.
• Built-in self-calibration – The device’s feature set includes built-in calibration to ensure maximum accuracy.
• Multi-channel architecture – Four channels of simultaneous sampling provide greater accuracy and reduce the complexity of the application circuitry.
• Wide operating voltage range of 1.8V to 5.75V – The device is designed to operate with a wide range of input voltages, enabling it to be used for applications that may require a different supply voltage.
• Dynamic power-saving mode – When not in use or during non-capture operations, the device goes into a low-power mode, reducing power consumption.

The working principle of NAU8402WG TR is based on an internal analog to digital conversion circuit that converts an analog voltage into a digital output. The integrated automatic calibration circuit utilizes the device’s self-calibration feature to ensure maximum accuracy. The ADC also incorporates a variable low-pass filter and variable clock rate to allow various data types to be sampled and digitized efficiently. The architecture of the device also allows simultaneous sampling of multiple channels, thereby reducing the complexity of the application circuitry. The analog input voltage is compared to an internal reference voltage, and the difference is used to generate an 8-bit digital output code.

In conclusion, NAU8402WG TR is a low power, high accuracy ADC designed for data acquisition applications. It features a multi-channel architecture, built-in self-calibration, a wide operating voltage range and a dynamic power-save mode. This makes it ideal for applications where accuracy, power efficiency and flexibility are key requirements.

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