puruparajuli
Newbie level 4
I tried to design an OTA-C oscillator , (in a 1.2um CMOS process.)
The supply voltage are +2.5 -2.5 volts.
the circuit is exactly the same as found in the tutorials of ota-c oscillators.
But when I simulate the output voltage over time all I get is flat dc voltage ,
The circuit is not oscillating no matter what gm i use for ota, or the value of capacitance i use for it. and I've always made sure that the condition of oscillation is met.
Can someone help please.
The supply voltage are +2.5 -2.5 volts.
the circuit is exactly the same as found in the tutorials of ota-c oscillators.
But when I simulate the output voltage over time all I get is flat dc voltage ,
The circuit is not oscillating no matter what gm i use for ota, or the value of capacitance i use for it. and I've always made sure that the condition of oscillation is met.
Can someone help please.