Title :
Design of frequency-to-voltage converter using successive-approximation technique
Author :
Lin, Chin E. ; Hou, An Sang
Author_Institution :
Dept. of Electr. Eng., National Changhua Univ. of Educ., Taiwan
Abstract :
In this paper, the current conveyors, up-down counter, and ultra high-speed D/A converter are employed to achieve the fast frequency-to-voltage converter (FVC). Based on the successive-approximation technique, the proposed FVC has short overall response time and does not require any matched components. The transient variations of input signal frequency can be detected. The output voltage is inversely proportional to the input signal frequency. The input signal frequency range from 50 Hz to 2 MHz is tested. The output ripple voltage is verified so little that no low-pass filter is needed. The experimental results demonstrate the static and dynamic characteristics of proposed FVC.
Keywords :
approximation theory; counting circuits; current conveyors; digital-analogue conversion; transient analysis; voltage-frequency convertors; 50 Hz to 2E6 Hz; current conveyors; frequency-to-voltage converter; high-speed D/A converter; input signal frequency; low-pass filter; short overall response time; successive-approximation technique; transient variations; up-down counter; Analog circuits; Delay; Detectors; Filtering; Frequency conversion; Instrumentation and measurement; Integrated circuit measurements; Low pass filters; Testing; Voltage measurement;
Conference_Titel :
Instrumentation and Measurement Technology Conference, 2003. IMTC '03. Proceedings of the 20th IEEE
Print_ISBN :
0-7803-7705-2
DOI :
10.1109/IMTC.2003.1207988
