Abstract:

In order to meet the low-cost high-speed, high-accuracy ADC ( Analog-to-Digital Converter)requirements, this paper presents a low number to the number of ADC to achieve a high level approach. The method uses a single chip as a comparator ADC, the signal is superimposed on a disturbance signal, after several analog to digital conversion and accumulating a number of high-precision ADC to achieve results. Experimental results show that the designed circuit is reasonable and correct, to achieve a low cost ADC in high precision measurement.

Key words: analog-to-digital converter(ADC), precision, disturbing signal