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You can't use the OTA based inductors in real RF circuits.though the OTA based inductor show very high Q and occupy very little areas,its noise characteristci is so badly that it will ruin the whole circuit.you can get more explainations in Tom.Lee's book"CMOS RF Integrated circuit"
If you find...
It can not directly judged frpm the graph that it is a PNP or NPN,because of the unkown doping type.but you can judge the structure.the Y is poly emmiter ,X is the base contact,the Z is collector,it is a vertical one.
If you fing this helps,plz press the 'help' button!
Thank you very much for you help.It is a good reference.
but It's about opa,not a ota.In OTA the feedback network is capacitor,so the dc op point can not be decided.so we usually add a big resistor parrelell to the cap to give out a dc op point.but the resitor inevitaly load the output of the...
ota testbench
I design a fully differential OTA but have some problems with the simulation config.Can somebody provide suggestions and materials about the OTA testbench.Thank you!
It depend on your what technology and process you use .
The thickness of 300mm wafer is about 650-780um.
the conductivity is different for Bipolar and cMOS TECHNOLOGY.
for cmos tech it mostly use high resistance p- substrate .
for bipolar tech it mostly use low resistance substrate(heavily doped...
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