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

fYear

1988

fDate

7-9 June 1988

Firstpage

2221

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;

fLanguage

English

Publisher

ieee

Conference_Titel

Circuits and Systems, 1988., IEEE International Symposium on

Conference_Location

Espoo, Finland

Type

conf

DOI

10.1109/ISCAS.1988.15386

Filename

15386