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I design the fully differential telescopic amplifier like above, and normally when I do DC simulation, I try first to use input CM = 1.3V to satisfy all the transistors in saturation, but when I do the DC sweeping from 0 to 2, then I check the DC gain of the amplifier, I got a sharp spike for...
Lets say, a fully differential nmos-input telescopic amplifier, and I assume the supply is 3V, and the overdrive voltage of the M9, and M1, M3, M5, M7 is 0.5V, 0.2V,0.2V, 0.3V, 0.3V. that means the ouput swing is 1.5V for one side. and the threshold voltage for P/NMOS is 0.7V.
I want to...
Since I am such a beginner about designing amplifier, so I will gladly get some suggestion for my design.
I want to design a high DC gain ( 120dB ~ 140dB ), and for sensor application amplifier OTA, with the supply is 3.3V. It is for humidity sensor, and sampling frequency is 1MS/s, so not...
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