AD736AQ

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The AD736AQ is a precision, low power, wide dynamic range, simultaneous voltage and current readout, true root mean square (RMS) to direct current (DC) converter. It is designed to operate over a wide range of input and output ranges and offers users a high level of system accuracy and efficiency. The AD736AQ is suitable for a range of applications, including portable data acquisition systems, industrial process control, smart home energy and lighting systems, medical instrumentation, and energy monitoring/metering applications.

In terms of its physical characteristics, the AD736AQ offers a small, 100 pin TQFP package along with an integrated capacitor for flexible DC offset adjustment. Other features include a wide supply voltage range (3.3V to 408V), high resolving power (0.33V/% of full-scale input), and low power consumption (5mW typical). It also includes embedded temperature sensors, programmable voltage and current detection thresholds, a low-noise variable gain amplifier, and additional features optimized for low noise and high performance.

Now let’s take a closer look at the AD736AQ’s working principle. The device begins by converting an AC input to a DC output through a root mean square (RMS) measurement technique. The AD736AQ then utilizes a low-noise variable gain amplifier to accurately measure the RMS of the input in both the voltage and current channels. This is followed by a differential input stage that amplifies the difference between the two inputs, thus providing a reliable measurement of the differential voltage and current signals. The device then converts the RMS measurement back to DC level and delivers the result in a low-noise digital output.

The outputs of the AD736AQ can be set to either a voltage-mode or a current-mode output. In current-mode, the AD736AQ can provide 0 to 900 Amps of simultaneous output. In voltage-mode, the device is capable of both 0 to -400V or 0 to +600V of combined output. The AD736AQ also offers two separate voltage output registers designed for monitoring both the input and the output signals.

The combination of its wide dynamic range, low power consumption and high resolving accuracy make the AD736AQ an ideal choice for numerous applications. By accurately converting the RMS voltages and currents of an AC input signal to a DC output, the device can be used for a range of power management, industrial process control, medical instrumentation, and home energy monitoring/metering applications. The AD736AQ is also an excellent choice for portable data acquisition systems, as its combination of low power consumption and high accuracy makes it well-suited for battery-powered systems.

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