Where Can I Find a Model for Dual Supply SPDT Analog Switches for Orcard 16.2?

[jwcannad]

Does anyone have, or know where to find, a model for one of these dual supply, SPDT analog switches?

 

[Bob S]

My LTSpice has a voltage controlled SPST switch. Two of these could easily make a SPDT switch.

 

[berkeman]

Does anyone have, or know where to find, a model for one of these dual supply, SPDT analog switches?

Hmm. I don't see one in the Maxim info page (the "Models" option is greyed out):

http://www.maxim-ic.com/quick_view2.cfm/qv_pk/1504

Is Maxim the only manufacturer?

 

[jwcannad]

Tried Maxim and Intersil, neither has a model available. I am using Orcard 16.2, and it only has user controlled SPST or SPDT switches. I need to be able to switch inputs dynamically at 10kHz.

 

[berkeman]

Tried Maxim and Intersil, neither has a model available. I am using Orcard 16.2, and it only has user controlled SPST or SPDT switches. I need to be able to switch inputs dynamically at 10kHz.

I would use the simplified schematic from the part datasheets, and add components to model the capacitances and other values in the datasheets. That will give you a reasonable starting point, especially for 10kHz.

A good book for tuning up models is "Semiconductor Device Modeling with SPICE", edited by Antognetti and Massobrio. Your school library may have a copy.