Current-controllable saw-tooth waveform generators using current-tunable Schmitt trigger
Won-Sup Chung, Myungho Lee · Journal of the Institute of Electronics Engineers of Korea · 2007
A saw-tooth waveform generator whose frequency can be controlled with a do bias current is proposed. The generator utilizes operational transconductance amplifiers (OTA's) as switching element. It features simple and wide sweep capability The circuit built with commercially avaliable components exhibits good linearity of current-to-frequency transfer characteristics and relatively low temperature sensitivity.