Specs for CD4007

  • Thread starter KeithLucas
  • Start date
  • #1

Main Question or Discussion Point

I'm looking for the threshold voltage Vtn, the MOSFET transconductance parameter kn and the channel length modulation parameter for MOSFET 6 on the CD4007. Where can I look these values up?
 

Answers and Replies

  • #2
davenn
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did you try the datasheet ?
would be the obvious starting place :wink:

cheers
Dave
 
  • #3
meBigGuy
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did you try the datasheet ?
would be the obvious starting place :wink:

cheers
Dave
Did YOU try the data sheet? Not such an obvious place for what was being asked.

Moving on:

OP, Which FET do you consider to be #6?

The answer would be foundry and process dependent and I doubt it is available on any data sheet. Maybe you can look for a spice model and either read the model (if it is readable), or use spice to extract the data.

Here is a lab example
http://www.ece.ucsb.edu/Faculty/rodwell/Classes/ece2c/labs/Lab_2_2C_2007.pdf

EDIT

Here is the spice model
CD4007 NMOS and PMOS transistor SPICE models

* Typical - Typical Condition



.model MbreakND NMOS
+ Level=1 Gamma= 0 Xj=0
+ Tox=1200n Phi=.6 Rs=0 Kp=111u Vto=2.0 Lambda=0.01
+ Rd=0 Cbd=2.0p Cbs=2.0p Pb=.8 Cgso=0.1p
+ Cgdo=0.1p Is=16.64p N=1

*The default W and L is 30 and 10 um respectively and AD and AS
*should not be included.


.model MbreakPD PMOS
+ Level=1 Gamma= 0 Xj=0
+ Tox=1200n Phi=.6 Rs=0 Kp=55u Vto=-1.5 Lambda=0.04
+ Rd=0 Cbd=4.0p Cbs=4.0p Pb=.8 Cgso=0.2p
+ Cgdo=0.2p Is=16.64p N=1

*The default W and L is 60 and 10 um respectively and AD and AS
*should not be included.
 
Last edited:
  • #4
Thanks, I'll run a SPICE model to get it!
 

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