Journal of the Korean Institute of Telematics and Electronics (대한전자공학회논문지)
- Volume 27 Issue 8
- /
- Pages.1255-1259
- /
- 1990
- /
- 1016-135X(pISSN)
A New Ripple Analog-to-Digital Converter
새로운 리플 아날로그-디지털 변환기
Abstract
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.
Keywords