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Ok. I answer to my own question.
I read Gray & Meyer. It's a series-shunt feedback configuration, with a feedback transfer function of 1. So the impedance of my circuit is Rout/(1+gmRout). As a consequence, my circuit acts as a resistance if Rout is very high. And therefore, a telescopic...
Yes, but, in the configuration I am refering to, the voltage gain is not of interest. The circuit is used to emulate a resistor, so what is important is the transconductance gm (=1/R).
What I understand is : the higher Rout, the smaller the current in the feedback branch, and, as a consequence...
Hello.
I am designing a tunable high pass filter : the signal goes through a cap then into a grounded resistor. To make it tunable, the res is actually a differential inputs/single-ended output OTA, fed through the invert input, and with a feedback from the output to the invert input (like...
Thank you all for your answers. I have new paths to investigate now.
My main focus now :
- Murata Ceramic Delay lines
- Coax wire (even though quite bulky)
- LC ladder
Thanks again, I consider my problem solved:thumbsup:
Hello.
I need to build an analog delay line with the following criteria :
- process 50MHz sinusoidal signal (dynamic and DC level not important)
- delay = 20 ns (ie one period)
The point is : I really need a delay and not a phase shift. For instance, if the amplitude of my input signal is...
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