I noticed that it has an output impedance of about 990 ohms and I would like to reduce it.
for example adapt the output resistance to a load in the order of tens of ohms (for example to an 8 ohm resistive load, a talking car...), therefore to an audio frequency for example... Thank you so much!!"Typical" Zout of a OpAmp, leads to question
View attachment 192010
So reduce to what value and at what frequency @ what Gclosed_loop?
Regards, Dana.
Perfect! so for example if I want to see the consumption of the differential stage I just need to see the consumption of each MOS in question and do the sum..Pressing control key with the mouse over will change the icon for power and then click, and you can display watts for any component, including the power supply
A thousand thanks!! I tried but I lose a lot of gain... more than the differential stage alone offered mePossibility :
Using Cascade Topologies to Beat the Miller Effect in Semiconductor Switches
Resistors, capacitors and inductors will continue to be challenged because of, well, the law of physics. There’s nothing we can do about the challenges, so electronics designers have, since the days of thermionic valves, learned to work around these factors by developing clever circuit...www.qorvo.com
Regards, Dana.
I did it, the MOS results in polarization from .OP ,but the cascode common source doesn't amplify me. remains more or less the same amplification of the differential about 43dB, in the output from the cascode stage I have 42dB. Also attenuates..Use your understanding of Kirchoff and MPT to bias for maximum voltage gain or power gain with impedances.
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