I wish to design a ring oscillator of 250 Hz (without using inductors and capacitors ) with two differential outputs. But the phase difference between the two outputs should be exactly 180 degrees. Also I need the output DC to be 900mV. I am using 1.8V supply voltage.
250 Hz without capacitors? Means only based on transistor capacitances? 250 MHz would be more realistic, may be a few decades down with very low currents.