AD7938BCPZ-REEL7

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Data Acquisition – Analog to Digital Converters (ADC) is an important part of many modern systems. With the development of technology, more and more advanced types of ADCs are available including the popular AD7938BCPZ-REEL7 ADC. This ADC has a wide range of applications and has a unique working principle.The AD7938BCPZ-REEL7 ADC\'s main application is in the fields of medical electronics, communications, air pressure, process control, and audio power. It can be used in medical systems, such as cardiac monitors, where it is required to measure and process a large amount of data. It can also be used in process control applications, such as in the petroleum industry, to measure and process the pressure data worth of oil, gas and steam. In addition, it can be used in audio power systems, where it needs to measure and control the audio power.The working principle of the AD7938BCPZ-REEL7 ADC is based on the Sigma-Delta Modulator (SDM). SDM is an advanced type of ADC that is used for digital processing of analog signals. The SDM is composed of two main parts, the Δ-integrator and the Σ-quantizer. In the Δ-integrator, the analog input signal is converted into a digital signal. Subsequently, the Σ-quantizer processes the digital signal and converts it into a digital output.The Δ-integrator contains a comparator, which is used to compare the analog input signal with a reference voltage generated by the internal oscillator of the AD7938BCPZ-REEL7 ADC. The comparator will generate a digital output, which will be integrated and sampled by the Σ-quantizer. Subsequently, the Σ-quantizer calculates the difference between the input and output and uses it to generate the digital output.In order to set up the AD7938BCPZ-REEL7 ADC, it requires a voltage reference, which is used to compare the analog input signal with. This voltage reference can be configured by the user, thus enabling the user to control the ADC\'s resolution and gain. Additionally, it is necessary to configure the internal oscillator of the ADC, so that the ADC can independently generate the reference voltage.To sum up, the AD7938BCPZ-REEL7 ADC is a popular ADC, which is widely used in the medical, communications, air pressure, process control and audio power fields. It features a unique working principle based on the Sigma-Delta Modulator and requires the user to configure the voltage reference and the internal oscillator for setting up.

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