This article introduces how to realize high-precision ADC acquisition and conversion of 0~5V, 0~10V, 0~20ma, and 4~20ma analog signals based on the Zongke Intelligent Control switch quantity analog quantity hybrid module. The acquisition accuracy is up to 24bit, and up to 8 channels can be acquired and converted simultaneously. The module is also equipped with 8-way optocoupler isolation switch quantity input and 8-way optocoupler isolation transistor output. It is powerful and suitable for industrial or Internet of Things occasions with high requirements for accuracy and stability.
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