AD7399BR

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The AD7399BR is a high-performance, 10-bit serial input digital-to-analog converter (DAC) that offers versatile performance capabilities. It is housed in a small 4-lead SOT-23 package and is designed for use in a wide range of applications. The AD7399BR controlled analog output can be used to drive signals for analog control, monitoring systems and precision measurements.

The AD7399BR offers excellent resolution and linearity performance, with a voltage span of 2.5 V and an output of 10 bits (1/1024 of the span). This combined with the 12 µV resolution makes the AD7399BR ideal for applications such as digital-to-analog conversion, professional audio, machine control, and industrial applications. The AD7399BR also features a versatile settling time, ranging from 8 µs to 1 ms. This allows for a faster response time than traditional DACs, making it suitable for high-speed applications.

The AD7399BR has a robust power supply range of 2.7 to 5.5 V, making it ideal for portable and low-power applications. It also has a low power consumption of 250 µA, and can operate typically over the full temperature range (-40°C to 85°C).

Given its superior performance, the AD7399BR applications range from loudspeaker actuation, audio mixing and equalizing, to video signal processing, temperature measurements and actuations, sensor calibration, and advanced industrial automation.

The AD7399BR’s working principle is based on a 10-bit resistor-string DAC architecture. The converter consists of a string of resistor elements, a switch matrix, and a 10-bit control logic. The 10-bit control logic determines which switches to close based on the input digital codes. The corresponding resistors are then connected in series or in parallel with the internal reference voltage, creating a voltage output which is representative of the digital input.

The AD7399BR can operate in either unipolar or bipolar modes. In unipolar mode, the output voltage is dependent on the digital input and the voltage reference, while in bipolar mode, the output voltage is dependent on the digital input, the negative reference voltage, and the positive reference voltage.

The AD7399BR is a high accuracy, low power 10-bit DAC, specifically designed for applications requiring superior resolution and linearity performance. It’s suitable for multiple applications, ranging from loudspeaker actuation, audio mixing and equalizing, to video signal processing, temperature measurements and actuations, sensor calibration, and advanced industrial automation.

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