Designer’s Guide Community :: Forum

Welcome, Guest. Please Login or Register. Please follow the Forum guidelines.

Aug 5^th, 2024, 3:11am

	HomeHelpSearchLoginRegisterPM to admin

The Designer's Guide Community Forum › Design › Analog Design › Telescopic Cascode in 65nm Tech.

‹ Previous topic | Next topic ›

Pages: 1

Send Topic

Print

Telescopic Cascode in 65nm Tech. (Read 3434 times)

Analog_Designer New Member Offline Posts: 9 Egypt	Telescopic Cascode in 65nm Tech. Aug 8^th, 2012, 4:23am I have designed a Telescopic Cascode in the 65nm Tech. and I want to ask about something I don't understand in the phase plot attached are both the topology written on it the operating point data and the bode plot (Gain magnitude and phase)
Back to top	telescopic.rar « Last Edit: Aug 09^th, 2012, 3:36am by Analog_Designer » IP Logged

Analog_Designer New Member Offline Posts: 9 Egypt	Re: Telescopic Cascode in 65nm Tech. Reply #1 - Aug 11^th, 2012, 4:05am Please somebody answer me. Does that mean that people don't know the answer ?
Back to top	IP Logged

Ken Kundert Global Moderator Offline Posts: 2386 Silicon Valley	Re: Telescopic Cascode in 65nm Tech. Reply #2 - Aug 11^th, 2012, 6:05pm It could mean that people are simply not bothering to open your rar file. Perhaps you would be better served if you simply posted the figures. -Ken
Back to top	IP Logged

Lex Senior Member Offline Posts: 201 Eindhoven, Holland	Re: Telescopic Cascode in 65nm Tech. Reply #3 - Aug 13^th, 2012, 12:27am So what is it about that you don't understand? The phase jumping 360 degrees? I assume you understand something like cos(a)=cos(a+n*2pi) with n element of Z? Considering your circuit, you might want to increase the NMOS cascode voltage. In this way your CS stage'vds<vdsat.
Back to top	IP Logged

Analog_Designer New Member Offline Posts: 9 Egypt	Re: Telescopic Cascode in 65nm Tech. Reply #4 - Aug 13^th, 2012, 4:42am I want to know why the sudden change in the phase like that? what causes it in the circuit?
Back to top	IP Logged

Lex Senior Member Offline Posts: 201 Eindhoven, Holland	Re: Telescopic Cascode in 65nm Tech. Reply #5 - Aug 13^th, 2012, 5:29am It is not caused in the circuit. It is caused in the way the phase is calculated for the waveform viewer. Try to unwrap it
Back to top	IP Logged

Pages: 1

Send Topic

Print

‹ Previous topic | Next topic ›

The Designer's Guide Community Forum » Powered by YaBB 2.2.2!
YaBB © 2000-2008. All Rights Reserved.