MX7820KCWP+

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Analog-to-digital conversion (ADC) is a process of transforming analog signals into a digital equivalent for storage and processing. The key components of this conversion process are the circuit elements that convert the signal from analog to digital, the clock tone of the converter, the analog-to-digital converter chip, and the power supply. The MX7820KCWP+ is a device optimized for high speed, precision analog-to-digital conversion. It features an 8-bit resolution and 10MHz clock rate, with a sampling rate of 100Ksps.

Features

The MX7820KCWP+ has two input channels, each with a voltage range of -2.5 to +2.5V. Each of the channels has a separate 8-bit digital representation, and the device also features a 4-bit op-amp gain adjustment for each channel. For noise reduction, the signal is first filtered with a fourth-order low-pass filter before it is digitized. Additionally, the MX7820KCWP+ has an integrated static RAM for storing the analog-to-digital conversion results. It also features an adjustable charge-pump filter that can remove any high-frequency noise in the analog signal.

Application Field

The MX7820KCWP+ is widely used in industrial, medical, and consumer applications. It can be used for data acquisition, signal monitoring, and process control. It is particularly well-suited for applications that require accurate, high-speed data collection. These include medical imaging, robotics, robotic navigation, automotive electronics, security systems, and industrial automation.

Working Principle

The MX7820KCWP+ uses a sigma-delta converter to convert analog signals into digital data. First, the analog signal is filtered with a fourth-order low-pass filter. This filter removes any high-frequency noise that may be present in the signal. Then, the filtered signal is sent to the sigma-delta ADC, where it is converted into a digital data stream. This data stream is then stored in the integrated static RAM.

The sigma-delta converter works by comparing the analog signal to an internal clock tone. If the voltage of the signal is lower than the clock tone, then a "1" is output, and if the voltage is higher than the clock tone, a "0" is output. This process is repeated continuously, resulting in a stream of binary data that can be stored, or processed into a digital format.

Conclusion

The MX7820KCWP+ is an optimal solution for high-speed, high-precision analog-to-digital conversion. Its features, such as its 10MHz clock rate and 8-bit resolution, make it suitable for a variety of data acquisition, signal monitoring and process control applications. Additionally, its fourth-order low-pass filter, adjustable charge-pump filter and integrated static RAM provide excellent noise reduction and data storage capabilities.

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