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Simulators >> RF Simulators >> How do i give A differential current input in ADS?
https://designers-guide.org/forum/YaBB.pl?num=1268953299

Message started by Turin on Mar 18^th, 2010, 4:01pm

Title: How do i give A differential current input in ADS?
Post by Turin on Mar 18^th, 2010, 4:01pm

How do i give A differential current input in ADS2004?My guess would be to use 2 of the I_AC(freq domain sources) in ads but i'm not sure what to put in I=Polar(x,x) and freq parameters.

Also how can I measure current gain and current in general in the ads. Is there any other way besides I_probes?

Thanks....

Title: Re: How do i give A differential current input in ADS?
Post by pancho_hideboo on Mar 19^th, 2010, 8:29am

Turin wrote on Mar 18^th, 2010, 4:01pm:

How do i give A differential current input in ADS2004?

Have you been able to resolve the followings.
http://www.designers-guide.org/Forum/YaBB.pl?num=1222115512
http://www.designers-guide.org/Forum/YaBB.pl?num=1241539594

Turin wrote on Mar 18^th, 2010, 4:01pm:

My guess would be to use 2 of the I_AC(freq domain sources) in ads

You already implement differential current by using two "I_AC" in the above.

Turin wrote on Mar 18^th, 2010, 4:01pm:

but i'm not sure what to put in IIac=~~Polar~~polar(x,x) and ~~freq~~Freq parameters.

Iac=polar(1, 0) and Iac=polar(1, 180)
or
Iac=1 and Iac=-1

Here you can choose any "units" such as "A", "mA", "uA", "pA" and "fA" as well as "unitless".

"Freq" parameter is used for FCAC(Frequency-Converting AC analysis).
Leave it default value, "freq" for conventional AC analysis like following.
Freq=freq (global analysis frequency)

Read documents of Agilent ADS surely.
The followings are documents of Agilent ADS2009. But these are also valid for ADS2004A.
http://edocs.soco.agilent.com/display/ads2009/I+AC+%28AC+current+source%29
http://edocs.soco.agilent.com/display/ads2009/polar%28%29+Expression
http://edocs.soco.agilent.com/display/ads2009/AC+Simulation+Description
http://edocs.soco.agilent.com/display/ads2009/Performing+an+AC+Simulation

Turin wrote on Mar 18^th, 2010, 4:01pm:

Also how can I measure current gain and current in general in the ads.
Is there any other way besides ~~I_probes~~I_Probe?

We can save pin currents without inserting "I_Probe" in current ADS.
But you have to insert "I_Probe" since you use ADS2004A.

Title: Re: How do i give A differential current input in ADS?
Post by Turin on Mar 23^rd, 2010, 5:25pm

I have completely forgotten about asking these thing again...it been so long ago and i didn't end up using ads back then.

Thanks a lot...