AD7391ARZ-REEL

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The AD7391ARZ-REEL is an 8-bit digital-to-analog converter (DAC) designed to provide a wide range of conversion applications in consumer, industrial, and medical products. The device provides an 8-bit output with a VDD supply voltage ranging from 3V to 5V. It includes a low-power, single op-amp multiplier (preamp) and internal clock oscillator. It has a single-ended current output and operates at a maximum clock rate of 17 MHz.

The AD7391ARZ-REEL is ideal for applications where high resolution and low distortion are required, such as audio/video/test equipment, voice recognition systems, medical instrumentation and imaging systems, or any application in which an analog output is required. Additionally, the device can be used in automotive, industrial, and communication systems.

The device is operated with an SPI-compatible serial interface, meaning that it is easily interfaceable with micro-controllers and DSPs. The protocol contained on the serial data bus provides the user with the control of the device, eliminating the need for external control logic.

The AD7391ARZ-REEL provides a high performance 8-bit digital-to-analog conversion. Its performance characteristics include a maximum 8-bit linearity error of 0.5LSB, a high resolution of 0.5LSB and a low power dissipation of 1.5mW. It also features low offset voltage and low distortion. In addition, the device is designed for low power consumption and low noise operation, affording high accuracy and repeatability of output voltage.

The working principle of the AD7391ARZ-REEL is based on a relaxation oscillator topology. The internal clock oscillator is driven by the input signal and generates a voltage controlled clock with a frequency proportional to the input code. The voltage-controlled clock then drives the analog-controlled preamp and the subsequent analog output. The multiplying preamp circuit is used to amplify the input signal such that the analog output voltage is directly proportional to the input code.

The AD7391ARZ-REEL is a highly integrated, easy to use and cost-effective 8-bit DAC. It is suitable for a wide range of applications requiring low-distortion, high-speed and high accuracy analog output signals and features a small package making it suitable for use in a variety of space-constrained systems. Its wide operating range and integrated features make it an ideal choice for systems requiring good performance and low power consumption, making it a highly versatile solution for a wide range of data acquisition applications.

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