Title :
Digitally programmable active-R square wave generator
Author :
Abuelma´atti, Muhammad Taher
Author_Institution :
Bahrain Univ., Isa Town
fDate :
6/1/1990 12:00:00 AM
Abstract :
A digitally programmable active-R square-wave generator circuit is discussed. The circuit uses only two operational amplifiers, two operational transconductance amplifiers, and resistors. The main features of the circuit are the following: it uses only resistors without recourse to any external capacitors. Therefore, it is attractive for monolithic implementation. It can be used with any mini/microcomputer or microprocessor-based system. It is possible to obtain a linear relationship between the control voltage and the frequency of oscillation. Experimental results are presented
Keywords :
active networks; monolithic integrated circuits; square-wave generators; control voltage; digitally programmable active-R square-wave generator; frequency of oscillation; linear relationship; monolithic implementation; operational amplifiers; operational transconductance amplifiers; Cities and towns; Equivalent circuits; Frequency; Instruction sets; Operational amplifiers; Oscillators; Rain; Resistors; Temperature; Transconductance;
Journal_Title :
Instrumentation and Measurement, IEEE Transactions on
