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Newbie to ADS transitioning from LTSpice

Question asked by ren_zokuken01 on Feb 16, 2016
Latest reply on Feb 20, 2016 by alexi
So I just got started on ADS and previously using LTSpice. I'm just doing some test run just to make sure I know how to use the software and I set it up just right. For now, I'm only concerned with Transient analysis, so need to concern myself with Harmonic Balance or S-parameters analysis and all the other ones.

I seem to be having trouble getting NMOS components to work. If you would take a look at the attached screenshot, I have a simple NMOS Common Drain configuration from an input of common-mode sine-wave VIN. As you can see, the M1 is acting like a constant resistor close to the value of R, making the amplifier just a voltage divider.

Why is this? Do I have the wrong M1 component or maybe I need to fill in more it's parameters?
I got this component from:

Analog_Parts/AP NMOS Devices (No Layout),

whose library is located at:

$HPEEOFS_DIR\oalibs\componentLib\Analog_Parts_vendor_kit,

which was decompressed from:
$HPEEOFS_DIR\oalibs\componentLib\Analog_Parts_vendor_kit.7z


Also, from mentioned library above, why are NMOS and PMOS, Enchancement and Depletion all have the same symbol?

Edited by: ren_zokuken01 on Feb 16, 2016 3:50 AM  

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