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Data Acquisition - Digital to Analog Converters (DAC)

Digital-to-Analog Converters (DACs) are a fundamental part of many electronic systems. DACs are used to convert digital signals into analog signals, which can then be used to power real-world devices, such as motors, lights and pumps. The Analog Devices ADAU1966AWBSTZ-RL is one such converter.

Application Field

The ADAU1966 converter is a single-channel, 24-bit, Sigma-Delta modulator-based Digital-to-Analog Converter (DAC). It is designed for use in a variety of applications, from automotive to industrial, from commercial to consumer.One of its key advantages is its low power consumption — it requires only 33 μA for a 24-bit conversion. This makes it ideal for battery-powered portable applications, where long battery life is a necessity.

Working Principle

The ADAU1966AWBSTZ-RL uses Sigma-Delta Modulation to convert digital signals into analog signals. This technique employs a bit stream of digital values to represent a range of analog values. By doing this, the converter is able to reduce the amount of power consumed and still maintain a high level of accuracy. In this way, the ADAU1966AWBSTZ-RL is able to offer a high level of performance in a small, low-power package.

The first step of Sigma-Delta Modulation is to convert the digital input into a high frequency digital signal. This signal is then converted into a low frequency analog signal through an integrated filter. The output of the filter is then converted into the analog signal needed for the application. This type of conversion process helps to ensure a high level of accuracy, as well as low power consumption.

Conclusion

The Analog Devices ADAU1966AWBSTZ-RL is a low power Digital-to-Analog Converter (DAC). It is suitable for a range of applications, from automotive to industrial, from commercial to consumer. This converter is a great choice for lower power applications, due to its low power consumption and the high accuracy of its Sigma-Delta Modulation conversion system.

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