AD7225KRZ-REEL

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Data acquisition is the process of digitally converting and storing signals from the physical world for further analysis and interpretation. Digital to analog converters (DACs) are devices that can convert digital information into analog electrical signals, enabling digital-based devices to communicate with analog-enabled systems. AD7225KRZ-REEL is one such device, specifically designed to provide high-resolution output data conversion and conditioning. This paper will discuss the AD7225KRZ-REEL’s application field and working principle.

AD7225KRZ-REEL is a single-supply, 14-bit digital to analog converter featuring a 1.2V internal reference and a –08 to +1V output voltage range. The device is optimized for low power, wide input dynamic range, and low cost. It is ideal for applications including medical instrumentation, communications systems, power scaling, and general-purpose DAC, making it suited for both analog and digital systems with strict power requirements. The device is available in both 8-pin SOIC and VFBGA packages, with a total power dissipation of only 2.2 mW. The device features programmable output gain, offset, attenuation, and excitation pads to provide flexibility in applications that require low-power and accuracy.

The AD7225KRZ-REEL’s working principle is relatively straightforward. This device contains an integrated resistor string composed of 14-bits, each of which has a value of either high or low. When a voltage is applied to the VIN pin, the device will take the digital input, convert it to an analog output, and condition it according to the programmed gain and offset. This analog signal is then converted to a binary-weighted digital signal, which is output from the DAC and can be read in digital form. Additionally, the AD7225KRZ-REEL comes with digital calibration to automatically calibrate for vanishing offsets and gain errors.

In summary, the AD7225KRZ-REEL is a single-supply, 14-bit digital to analog converter featuring a 1.2V internal reference and a –08 to +1V output voltage range. It is optimized for low power, wide input dynamic range, and low cost, and is suitable for a variety of applications, including medical instrumentation, communications systems, power scaling, and general-purpose DAC. The AD7225KRZ-REEL is controlled by setting a voltage at the VIN pin and uses an integrated resistor string composed of 14-bits to convert digital input to analog output, condition it according to programmed gain and offset, and output it through the DAC. The device also features digital calibration to automatically calibrate for vanishing offsets and gain errors.

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