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Maas-Neilsen FET Model: MNFET

Symbol

Equivalent Circuit

Parameters

Name Description Unit Type Default
ID FET Identification Text F11
*RG Gate resistance Resistance 1 ohm
*RD Drain resistance Resistance 1 ohm
*RDS Drain to source resistance Resistance 300 ohm
*RS Source resistance Resistance 1 ohm
*CGS Gate to source capacitance Capacitance 0.1 pF
*CDG Gate to drain capacitance Capacitance 0.1 pF
*CDS Drain to source resistance Capacitance 0.1 pF
*VT Threshold (pinchoff) voltage Voltage -1 V
*VF Maximum gate voltage Voltage 0.5 V
*A0 Drain current coefficient A0   0.032
*A1 Drain current coefficient A1   0.05
*A2 Drain current coefficient A2   0.05
*A3 Drain current coefficient A3   0.05
*A4 Drain current coefficient A4   0.05
*GAMMA Drain voltage coefficient   1

* indicates a secondary parameter

Implementation Details

I/V Characteristic

For

For

where

Layout

This element does not have an assigned layout cell. You can assign artwork cells to any element. See “Assigning Artwork Cells to Layout of Schematic Elements” for details.

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