AD9741-DPG2-EBZ

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The AD9741-DPG2-EBZ is an evaluation board from the Digital to Analog Converters (DACs) group from Analog Devices. It is an 8-bit, single-channel Digital-to-Analog Converter (DAC) that is useful in many applications. It is designed to provide a good balance of speed, power, and accuracy. The board can output up to 2.5Vpp, provides an extremely low noise floor, and is optimized for low power consumption.

The AD9741-DPG2-EBZ’s primary application field is in the testing and evaluation of digital-to-analog conversion designs. It includes two connectors that provide access to the analog output at the device’s full range of performance, and is designed to allow users to easily connect it to their systems to evaluate the device’s performance. Additionally, the board includes an onboard oscilloscope with a 1.5 MSPS single-shot mode and 16-bit resolution for visualizing the output waveform of the device.

The board is designed to show the complete performance of the AD9741-DPG2-EBZ in all conditions, and includes a complete power supply solution to power the device and accessories. The board operates from a single +5V power supply and provides a variety of output configurations including voltage, current, as well as single ended and differential outputs. The board includes an evaluation mode that can be used to quickly evaluate the DAC’s performance without the need for any external equipment. The evaluation mode provides a short-term transient response, a frequency response, a power supply rejection ratio, and an ac error measurement.

The board’s working principle is simple. It converts the digital data into an analog voltage according to the data present in its registers. An 8-bit digital data word is loaded into the board\'s shift register along with the chip address. The loaded digital data is then serially clocked out of the shift register and into the 8-bit input register of the AD9741-DPG2-EBZ. The 8-bit data is converted from digital form into an 8-bit analog voltage, where the value of the voltage is determined by the digital word.

The board provides both an 8-bit current output and a differential voltage output. The output current is generated by a reference plus the 8-bit digital words, and the differential voltage output is derived from the output current by a pair of resistors. The board also supports an autocalibration feature which is activated by setting the power down output and can be used to optimize the performance of the board.

Overall, the AD9741-DPG2-EBZ provides a convenient solution for testing and evaluating DAC designs. By simplifying the connections and providing an onboard oscilloscope, the board makes it easy to connect and evaluate the device\'s performance without the need for any external equipment. Additionally, the board\'s autocalibration feature and low power consumption make it a good choice for any application where high speed, low noise, and low power consumption are important.

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