Title :
A square-rooting voltage-to-frequency converter
Author :
Trofimenkoff, F.N. ; Sabouri, Farmarz ; Qin, Jichang ; Haslett, J.W.
Author_Institution :
Dept. of Electr. & Comput. Eng., Calgary Univ., Alta., Canada
fDate :
10/1/1997 12:00:00 AM
Abstract :
A clock-controlled voltage-to-frequency converter in which the output frequency is proportional to the square root of the input voltage is described and a detailed error analysis is presented. Accuracies of about 0.02% of full-scale for the voltage input range from 1 mV to 10 V have been achieved using commercially-available CMOS components in good agreement with theoretical expectations
Keywords :
CMOS integrated circuits; analogue-digital conversion; error analysis; flow measurement; measurement errors; 1 mV to 10 V; ADC; clock-controlled voltage-to-frequency converter; commercially-available CMOS components; error analysis; square-rooting voltage-to-frequency converter; venturi flow measurement; Bridge circuits; Capacitive sensors; Circuit stability; Clocks; Fluid flow measurement; Frequency conversion; Frequency measurement; Temperature measurement; Transducers; Voltage;
Journal_Title :
Instrumentation and Measurement, IEEE Transactions on
