CML ring oscillator not working

Thread Starter


Joined Jul 13, 2017
_20210318095512.pngThis my CML, I build four-stage of it, and my oscillator oscillates perfectly. But when I connect my load to the output (either drain or gate), my circuit stops oscillating. I know it is an RC problem however my load needs a large voltage swing so I series large resistance with my load.
So how can I make it oscillate with a low impedance load?