DAC902E

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Data Acquisition - Digital to Analog Converters (DAC) play an important role in a variety of industrial, automotive and consumer applications. The DAC902E is a monolithic integrated circuit designed for data acquisition applications that require high accuracy and good linearity. It can convert digital signals into analog signals with a resolution of up to 16 bits, and is able to maintain a highly accurate output over a wide range of input signals.

The chip features a built-in low-pass filter which eliminates any high-frequency noise present in the input digital signals. This ensures that the output analog signal is accurate and free of any unwanted artifacts. The chip is also able to generate multiple outputs, thus allowing for greater flexibility in the design of data acquisition systems. For example, two separate outputs can be created, each with a different output range.

The DAC902E’s working principle is based on the sigma-delta modulator (SDM) technique. SDM is a circuit design technique which is used to convert digital signals into analog signals with high precision. The principle behind SDM is to sample the input digital signal, process it and convert the digital samples into pulse-width modulated (PWM) signals. These PWM signals are then converted into analog signals by a low-pass filter.

The DAC902E uses a combination of a low-resolution, wide-range input and a high-resolution, narrow-range output to achieve accurate analog output signals. The chip’s input is typically 10-12 significant bits, with an output resolution of up to 16 bits. The chip is also able to provide accurately regulated output voltages with low drift and jitter.

The DAC902E can be used in a wide range of data acquisition applications ranging from automotive to consumer electronics. In automotive applications, it can be used to convert digital signals generated by sensors and other sources into analog signals which can then be used as inputs for control systems. In consumer electronics, the DAC902E can be used to generate accurate analog signals for a variety of applications such as audio and video processing.

Overall, the DAC902E is a versatile and robust digital to analog converter which is well-suited for a variety of data acquisition applications. The chip’s built-in low-pass filter ensures that the output analog signals are free of any unwanted artifacts, and its combination of low-resolution, wide-range input and high-resolution, narrow-range output allows for highly accurate analog output signals.

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