Title :
Digitally programmable active-R square-wave generator
Author :
Abuelma´atti, Muhammad Taher ; Almansouri, Wafa Abdulrahman ; Alruwaihi, Khaled Muhammad
Author_Institution :
Dept. of Electr. Eng. & Comput. Sci., Bahrain Univ., Bahrain
Abstract :
A novel active-R, electronically tunable, digitally programmable square-wave generator circuit is presented. Using only resistors without recourse to any external capacitors, the circuit is attractive for monolithic implementation. The feasibility of interfacing with any mini/microcomputer- or microprocessor-based system is demonstrated. Experimental results obtained using the operational amplifier 741 and the operational transconductance amplifier 3080 are presented. Although these devices have some imperfections, they are low-cost devices that can be useful in applications where wave-shape and frequency-stability requirements are not very stringent
Keywords :
active networks; function generators; monolithic integrated circuits; operational amplifiers; active-R square-wave generator; digitally programmable signal generator; electronically tunable function generator; monolithic IC; operational amplifier 741; operational transconductance amplifier 3080; Cities and towns; Educational institutions; Equivalent circuits; Frequency; Instruction sets; Operational amplifiers; Oscillators; Resistors; Transconductance; Tunable circuits and devices;
Conference_Titel :
Instrumentation and Measurement Technology Conference, 1989. IMTC-89. Conference Record., 6th IEEE
Conference_Location :
Washington, DC
DOI :
10.1109/IMTC.1989.36862
