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AD7876CRZ Application Field and Working Principle

Data acquisition is the process of sampling signals that measure real physical conditions and converting the resulting samples into digital numeric values that can be manipulated by acomputer. The conversion process is done by Analog to Digital Converter (ADC). AD7876CRZ is one of the well-known and popular ADC devices used in this process.

Application Field

AD7876CRZ can be used in a wide range of applications, including industrial, commercial and consumer applications. In the industry, it can be used in a large range of products, such as industrial automation, process monitoring, machine control and motor control. In the commercial sector, it can be used to measure temperature, humidity and pressure. In the consumer market, it can be used for medical and fitness applications, such as blood pressure and pulse rate monitors. In addition, it can also be used in automotive, aerospace, military and space exploration applications.

Working Principle

The working principle of AD7876CRZ is based on the principle of analog to digital conversion. The analog signal is first converted to a digital code, which is then processed and converted back to the original analog signal. AD7876CRZ uses a delta-sigma-based successively-cascaded converter, which converts analog signals to digital codes, while maintaining the accuracy and stability of the input signal. The device has an on-chip Digital Filter, which eliminates noise in the signal and eliminates the need for any external filtering.

AD7876CRZ also uses two offset cancellation circuits to ensure the accurate conversion of the analog signal to digital code. The first offset cancellation circuit is used to cancel out the offset errors between the converted digital code and the analog signal. The second offset cancellation circuit is used to cancel out any differences between the various converting stages. As a result, the device provides high accuracy and reliable signal conversion.

Advantages

AD7876CRZ has several advantages over other ADC devices. Firstly, it provides high accuracy with no need for external filtering. It also provides high stability due to its on-chip Digital Filter, and can be used in a variety of applications. Lastly, it has a low power consumption and a low noise floor, ensuring reliable and accurate operation of the device.

Conclusion

AD7876CRZ is an ADC device that is used for analog to digital signal conversion. It uses a delta-sigma based successively-cascaded converter, which maintains the accuracy and stability of the input signal. It also has two offset cancellation circuits, which ensure the accurate conversion of analog signals to digital codes. AD7876CRZ can be used in a wide range of applications, including industrial, commercial and consumer applications. Its advantages include high accuracy, high stability, low power consumption, and low noise floor.

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