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Tuning Gm-C filters: with different OTAs, can we use the same tuning circuit?
Hey guys,
In addition to what I have said in the last post, I have realized that in the papers I've seen so far, all OTAs are indeed tuned together (same Vbias). Some of them mention they use the same OTA blocks. Is...
Once again, thank you all for sharing. I will ask a follow up question which is directly applied to Gm-C filters. So, if you think it should (or deserves to) be placed in a new thread, please tell me.
In Gm-C filter design, the element that is usually tuned to keep the right filter frequency...
Thank you for sharing your experience. I am glad that such level of cooperation exists and thank you for that.
In the attached image in this reply, I tried to illustrate my understanding of the concept of distributing current sources instead of voltages you referred to. Is it right?
You...
Thank you for your replies. As far as I understood, it seems a consensus that one should always keep the current at the blocks as integer multiples of the original current reference. And this is to be achieved by using transistor multipliers (or fingers).
If block A were to be designed by a...
In the design of an analog system (e.g. filter) with multiple blocks (e.g. OTAs), I am in doubt about what is the best bias strategy. If all blocks were equal, one could design the current reference tailored specifically to that block. With multiple blocks, however, should all of them use...
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