대한전자공학회논문지 (Journal of the Korean Institute of Telematics and Electronics)
- 제27권8호
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- Pages.1255-1259
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- 1990
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- 1016-135X(pISSN)
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A New Ripple Analog-to-Digital Converter
초록
A new ripple analog-to-digital converter (ADC) has been developed. It consists of two parallel ADCs and a switching network. The circuit operates on the analog input signal in two serial steps. First, a coarse conversion is made to determine the most significant bits by the first parallel ADC. The resultant bits control the switching network to connect a series resistor segment, within which the analog signal is contained, to the second parallel ADC. At second step, a fine conversion is made to determine the least significant bits by the second parallel ADC. The circuit requires 2(2\ulcorner\ulcorner1) comparators, 2(2\ulcorner\ulcorner resistors, and 2(2\ulcorner\ulcorner swithches for N-bit resolution.
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