Pole zero analyses in Cadence ADE spectra

basically I connect the amplifier as a unity gain buffer with an ac input source, not sure if this should be the correct setup or if there is a need for ac source,

next I choose the pz analyses from ADE 

here I need your help of how to set up the simulator from the pictures below

after pressing options I get

thanks

As far as I know there's no tutorial on pz analysis; there are a few articles on correct usage of pz analysis on support.cadence.com (search for "pz analysis") which mainly tell you when it's not appropriate to use (e.g. frequency-dependent behavioural models). Typically you only need to specify the input and output of the circuit (using "spectre -h pz" from the command line will tell you some other info; this is also in the cdnshelp documentation). The Component Eval Frequency (which defaults to 1Hz) on the main page is to handle any frequency dependent components - they are simply evaluated at that frequency (note, this does not mean components such as inductors or capacitors, whose impedance changes versus frequencies; it's if the inductance or capacitance changes versus frequency, for example).

On the options page, very little needs to be specified, if anything. The only option you might typically pick is the method (the default is qz which is the most accurate and best suited for small to medium size circuits; you might need to switch to arnoldi for larger circuits which gives better performance but trades accuracy for this).

Regards,

Andrew.

Thank you Andrew for the reply

I tried spectre -h pz in the command interface but giving me this error "undefined function - spectre"

Thank you Andrew for the reply

I tried spectre -h pz in the command interface but giving me this error "undefined function - spectre"

Type it in a terminal window, not the CIW.

It's a UNIX command, not a SKILL command.

Exactly the same information will be in the Spectre Reference manual in cdnshelp.

Andrew.