AD676JN

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Data acquisition, also known as data conversion or signal conditioning, is a field of applied engineering which involves the capture, transportation, manipulation, and storage of signals. A primary component of such systems is the Analog-to-digital converter (ADC), which translates analog signals into digital signals for use in computer-based systems. The AD676JN is an example of an ADC which can be used in a wide range of applications.

Features and Specifications of the AD676JN

The AD676JN is an 8-bit ADC which operates from a 5V power supply. It has a maximum conversion rate of 200ksps and an input range of 0V to 5V. It provides on-chip digital output latches for each of the eight outputs, allowing direct interface with a microcontroller or other digital-output devices. The AD676JN requires very few external components, making it ideal for applications where power is at a premium.

Applications of the AD676JN

The AD676JN is an ideal ADC for applications requiring an 8-bit resolution, such as host-controlled displays, data logging, or medical instrumentation. The chip is also an excellent choice for systems requiring high accuracy, as it has a differential unipolar input range of 0V to 5V and a maximum conversion rate of 200ksps. Additionally, the AD676JN is available in a wide range of packages, from 64-lead PQFP to 28-lead SSOP, DIP, and VQFN packages.

Working Principle of the AD676JN

The AD676JN operates using sigma-delta conversion, a popular analog-to-digital conversion technique which relies on oversampling and noise shaping. In sigma-delta conversion, the input signal is sampled frequently and converted to digital form. The analog signal is then subjected to a noise shaping filter which shapes any noise present in the signal. Once the signal has been filtered, the digital data is output as an 8-bit code. This allows the signal to be accurately represented in the digital domain.

Conclusion

The AD676JN is an 8-bit analog-to-digital converter which is ideal for applications requiring low power, high accuracy, and low noise. It operates using sigma-delta conversion, which relies on oversampling and noise shaping to achieve high accuracy, and it is available in a wide range of packages. As such, it is an excellent choice for a variety of data acquisition applications.

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