AD7243AR-REEL

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Data Acquisition - Digital to Analog Converters (DAC) have a wide range of applications, and one such device is the AD7243AR-REEL. This a fully-integrated, low-power CMOS 10-bit resolution digital-to-analog (DAC) converter with a wide range of operating temperature and flexible voltage supply ranges. It has a variable power management feature that makes it suitable for battery-powered applications, as it allows for reduced active current consumption to provide increased battery life for portable products.

The AD7243AR-REEL is optimized for applications that include video and graphics displays such as pixel-mapped displays and LCDs, audio systems, personal communications and offices, display systems, graphics processors, programmable logic controllers, and automotive audio systems. One of the main advantages of this DAC is its fast settling time, which can be less than 1μs, which makes it ideal for noise-sensitive applications.

The AD7243AR-REEL is designed to convert 10-bit digital codes directly into 10-bit parallel current outputs. The DAC has an on-chip reference voltage, which helps to reduce the number of external components required by the application. The AD7243AR-REEL also features a low-power shutdown mode and power-down logic that can be used to reduce current consumption when the device is not being used.

The working principle of the AD7243AR-REEL is relatively simple. It takes in a 10-bit digital code, which is then decoded by the on-chip logic and converted into the corresponding analog output. This output is then connected to the output buffer circuit, which is responsible for driving the analog output.

For applications such as LCD displays, the AD7243AR-REEL can be used to directly drive the backplane of the display. This eliminates the need for external components such as switches and current-level shifters. To ensure that the desired current output is produced, the on-chip reference voltage can be adjusted to match the voltage of the backplane.

The AD7243AR-REEL also features a fully-integrated compensation circuit that helps to reduce power consumption and voltage noise. This is especially useful for applications where the output voltage is expected to vary over time. Additionally, the device also features a write protect feature that ensures that data written to the DAC is accurate and not corrupted.

In summary, the AD7243AR-REEL is an ideal solution for applications where a fast, precise and low-power digital-to-analog (DAC) converter is needed. It has wide range of operating temperature and flexible voltage supply ranges, and it also features a variable power management feature, on-chip reference voltage, low-power shutdown mode, power-down logic, integrated compensation circuit and a write protect feature.

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