[sdiy] Re: 4007 Voltage Controlled State Variable Filter (off list)

[ASSI]

On Sunday 15 February 2004 19:26, Scott Gravenhorst wrote:
> OK, I get this, but is the gate effect any different on the D-S
> conductivity (or dynamic resistance) when the D-S bias is reveresed?

If the substrate connection is not tied to either terminal the 
individual MOSFET in a CMOS technology really doesn't care what you 
call its drain or source. Things are different for high-voltage and 
power MOSFET which have asymmetrical doping and/or diffused channels 
(DMOS).


Achim.
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