MX7821KN

Due to market price fluctuations, if you need to purchase or consult the price. You can contact us or emial to us:   sales@allicdata.com

Data Acquisition comprises of different devices that are used along with computer systems to measure, transfer and store electrical signals, in order to carry out an analysis. A prime example of a data acquisition device is a Analog to Digital Converter (ADC). One of the most commonly used ADCs is the MX7821KN, and this article will cover its application field and working principle.

The MX7821KN is an ultra-low power, low-cost, low-noise 12-bit successive approximation type ADC. It is primarily designed for incorporation in data logging systems used for monitoring temperature, humidity, light and other environmental conditions. It can also be used in battery powered systems and systems with high EMI (electromagnetic interference).

When it comes to performance, the MX7821KN can provide up to 95dB signal-to-noise ratio (SNR). It features an on-board 10kHz low-pass filter, making it ideal for filtering out noise in applications that require high-accuracy data. Moreover, the device is capable of withstanding temperatures ranging from -40ºC to +125ºC, thereby making it suitable for a wide range of environmental measurements.

In terms of operation, MX7821KN can operate from both an internal clock and an external clock. When using the internal clock, it can operate over a frequency range of 1KHz to 65KHz, while when using the external clock, it can operate over a frequency range of 0.5KHz to 80KHz. The MX7821KN also offers an auto-calibration feature that helps improve its accuracy.

The working principle of the MX7821KN is relatively simple. When an analog signal is applied to the device, it is converted into a digital signal. This is done by passing the analog signal through an amplifier, a low-pass filter, and an analog-to-digital converter. The amplifier boosts weak signals, while the low-pass filter eliminates noise. The analog-to-digital converter then converts the filtered analog signal into a digital one.

Once the analog signal is converted into a digital signal, it is sent to a microcontroller. The microcontroller then processes the digital signal, and stores the results in its on-board memory. This is done using a combination of software algorithms, which perform various operations such as calibration, filtering and scaling, in order to generate meaningful data.

To conclude, the MX7821KN is a great data acquisition device due to its low-power consumption, low-noise, and wide temperature range. It offers a high degree of accuracy and precision, making it ideal for applications that need to monitor temperature, humidity, light and other environmental conditions. The device is also quite easy to use, since its working principle is quite simple and straightforward.

The specific data is subject to PDF, and the above content is for reference