[SOLVED] how to do a THD analysis for a diffirential amplifier

[antaryami.mt.er09]

Hi....
can anyone help me doing the THD analysis for a diffirential amplifier
thanks ...

 

[Blackuni]

Hi,

I presume that u wnt 2 simulate THD!! If so,
Either u can try using distrortion analysis function in SPICE tools, In hspice its ".disto" , this will give better results only if there are no time varying signals. if you hve time varying signals thn do a transient simulation with appropriate inputs and take FFT.

 

[antaryami.mt.er09]

Hi,

I presume that u wnt 2 simulate THD!! If so,
Either u can try using distrortion analysis function in SPICE tools, In hspice its ".disto" , this will give better results only if there are no time varying signals. if you hve time varying signals thn do a transient simulation with appropriate inputs and take FFT.

yes, i want to do the THD in cadene in ADE

 

[Blackuni]

I think there is command called "pdisto"

 

[antaryami.mt.er09]

I think there is command called "pdisto"

In the analysis window it is having PSS which i know is used for THD ,
but how to do it ,say for an diffirential amp how to proceed ?
THANKS

 

[Blackuni]

Hope the document in below link helps..I would suggest to go thru it fully b4

https://www.edaboard.com/threads/67434/

 

[antaryami.mt.er09]

Hope the document in below link helps..I would suggest to go thru it fully b4

https://www.edaboard.com/threads/67434/

Thank you...
It's now solved .....