AKD4420ET

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AKD4420ET is an evaluation board for digital to analog converters (DACs) used to provide accurate voltage and current signals. The board is designed to be integrated into existing or new systems to enable further evaluation and testing of DAC design and performance. This evaluation board is equipped with an AD4402ET DAC, allowing users to explore a wide range of voltage levels and currents with its 25-bit resolution resolution.

The AKD4420ET DAC board has several features that make it suitable for DAC evaluation, including its high accuracy and small size. It also features adjustable output stages and low-noise FIGs that allow for fine adjustments of the output voltage level and current. Additionally, it has on-board Galvanically Isolated amplification and enables efficient prototype testing.

The AKD4420ET also offers easy to use interface that is designed to take the guesswork out of the process. Its low clock to output jitter makes it ideal for test setups that require a short settling time. It also includes a full graphical user interface (GUI) that allows users to quickly set accuracy levels without any coding or configuration knowledge. The dashboard provides graphical data as well as control, monitoring, and automation functions, facilitating rapid development of DAC systems.

The working principle of the AKD4420ET is to convert a digital input signal into a filtered analog signal by means of a standard DAC architecture. The digital signal sent by the user is received by a digital input stage, consisting of a clock system, a phase-locked loop, a fast Fourier transform filter, and a digital code generator. This stage then increases the signal frequency by digitally converting it into a quantified frequency, typically expressed in cycles per second (Hz). The digital code generator then encodes this frequency into a digital value corresponding to the desired output, which is then fed to the DAC chip.

The latter then converts the digital signal into an analog one, modulating the output voltage according to the digital signal. The analog output is then passed on to an output stage, such as an amplifier, providing the necessary current to power up the system. Often, this output stage also features a filtering stage, to ensure that the output signal is free from any potential noise or vibrations. The AKD4420ET DAC board offers a high accuracy level and eliminates any problems caused by DC offset, drift or noise.

To sum up, the AKD4420ET is a digital to analog converter (DAC) evaluation board designed to offer rapid testing and evaluation of DACs. It provides a wide selection of voltage levels and currents with its 25-bit resolution resolution, adjustable output stages, and low-noise FIGs. Additionally, it offers an easy to use interface, low clock to output jitter, and a full graphical user interface (GUI) with graphical indicators and automation functions. Finally, the board features a standard DAC architecture, which converts a digital signal into a filtered analog one, and is equipped with a filtering stage to minimize noise pollution.

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