Title :
Switched-capacitor frequency-to-voltage and voltage-to-frequency converters based on charge-balancing principle
Author :
Matsumoto, Hiroki ; Watanabe, Kenzo
Author_Institution :
Res. Inst. of Electron., Shizuoka Univ., Hamamatsu, Japan
Abstract :
Switched-capacitor frequency-to-voltage and voltage-to-frequency converters integrable onto a small chip area are developed. The conversion is insensitive to parasitic capacitances, capacitance ratio, offset voltages, and finite open-loop gains of op amps. Therefore, both converters allow accurate conversion over a wide dynamic range. The authors describe the circuit configurations, the principles of operation, and the experimental results obtained by breadboard converters.<>
Keywords :
CMOS integrated circuits; switched capacitor networks; voltage-frequency convertors; F/V convertors; V/F convertors; accurate conversion; breadboard converters; capacitance ratio; charge-balancing; circuit configurations; experimental results; finite open-loop gains; frequency to voltage convertors; insensitive to parasitic capacitances; offset voltages; operation; small chip area; switched capacitor convertors; voltage-to-frequency converters; wide dynamic range; zero sensitivity; CMOS technology; Capacitors; Circuits; Clocks; Frequency conversion; Operational amplifiers; Parasitic capacitance; Switching converters; Timing; Voltage;
Conference_Titel :
Circuits and Systems, 1988., IEEE International Symposium on
Conference_Location :
Espoo, Finland
DOI :
10.1109/ISCAS.1988.15386
