DC2085A-A

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The DC2085A-A Evaluation Kit from Analog Devices provides a comprehensive solution for evaluation, testing, and demonstration of sophisticated Digital-to-Analog Converters (DACs). The Evaluation Board (EVAL-DC2085A-A) features the AD5760 Dual, 12-bit, voltage output DAC with advanced power management features and contains all the necessary components to evaluate the device performance in various applications. The board also has an I2C serial interface but can also be used as a stand-alone board with configurable output power and a wide range of adjustable settings. This article explores the application field and working principle of the DC2085A-A Evaluation Kit.

Application Field

The DC2085A-A Evaluation Kit is suitable for typically any application that requires a voltage-output DAC with a high resolution. This kit is especially useful for applications that require precision analog output. It has a wide dynamic range and can provide high-resolution voltage output for any kind of sampling or controlling application.The board is also suitable for use in motor control systems, power conversion systems, medical instrumentation, energy management systems, computer peripheral systems, and high voltage and current control systems. The board can be used as a stand-alone system for data acquisition or control. It is especially useful for voltage control applications like audio production where it can provide high-precision digital to analog conversion.

Working Principle

The DC2085A-A Evaluation Kit converts digital signals to analog signals in two steps. First, the differential input signals from the I2C interface are converted to single ended logic levels. Then, the single ended logic levels are converted to a wide range, precision voltage output.The DC2085A-A Evaluation Kit features two 12-bit, voltage output Digital-to-Analog Converters (DACs), the AD5760, which has a total output range of 0 to 4.096V. The onboard voltage reference can also be adjusted over 0.25V to 4.096V. The voltage reference is needed for setting the range of the DAC and allowing for voltage output regulation.Both DACs can be configured for simultaneous or single ended operation. They feature an adjustable power management output which can be programmed to ensure that the output voltage is appropriate for different application requirements. It can also be set to shutdown to reduce power consumption.The board includes I2C serial connection for communication with the DAC. The I2C interface can be used to configure the DACs, set their voltage range, make a frequency sweep or tuning, or program them to respond to various triggers.The DC2085A-A Evaluation Kit also has an integral SPI port for programming the DACs. The SPI port is suitable for applications where SPI communication is required or preferred.The Evaluation Kit includes a flexible block diagram which makes the design and development process faster and easier. The block diagram can be used to adjust the settings of the board and to test DAC performance.

Conclusion

The DC2085A-A Evaluation Kit from Analog Devices provides a comprehensive solution for evaluation, testing, and demonstration of sophisticated Digital-to-Analog Converters (DACs). The Evaluation Board (EVAL-DC2085A-A) features the AD5760 Dual, 12-bit, voltage output DAC with advanced power management features and contains all the necessary components to evaluate the device performance in various applications. The board is suitable for a wide range of applications, and can be used for data acquisition, voltage control, and various other precision output applications. The board also includes an SPI port for programming the DACs and features an integral constraint block diagram, which makes the design and development process faster and easier.

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