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The ADC0808CCN is an 8 bit analog to digital converter IC with eight input analog channels, i.e., it can take eight different analog inputs. The input which is to be converted to digital form can be selected by using three address lines. The voltage reference can be set using the Vref+ and Vref- Pins.
1Pc * ADC0808CCN 8-bit A/D Converter IC The ADC0808CCN is an 8 bit analog to digital converter IC with eight input analog channels, i.e., it can take eight different analog inputs. The input which is to be converted to digital form can be selected by using three address lines. The voltage reference can be set using the Vref+ and Vref- Pins. The step size is decided based on the set reference value. Step size is the change in analog input to cause a unit change in the output of ADC.
The default step size is 19.53mV corresponding to 5V reference voltage. ADC0808 needs an external clock to operate, unlike ADC0804 which has an internal clock. The ADC needs some specific control signals for its operations like start conversion and brings data to output pins. When the conversion is complete the EOC pins go low to indicate the end of conversion and data ready to be picked up.
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