Mos3P
Level 3 MOSfet (a derived level 1 model)
Library
Analog/Basic
Description
This is a MOS Level 3 and the formulations are derived from the model 1 and take into account a set of physical limitations in a semi-empirical way.
The model introduces the saturation voltage
The characteristics described below apply for a NMOS (see Mos3N). For a PMOS, the Ids and Vds axis have a negative sign.
Parameters
| Name | Label | Description | Data Type | Valid Values |
|---|---|---|---|---|
sp_mname | Model Name | Name of the MOS model | String | |
sp_m | Multiplier | Multiplier for setting m mosfets in parallel | Scalar | |
sp_l | Length | Channel length (meter) | Scalar | |
sp_w | Width | Channel width (meter) | Scalar | |
sp_ad | Drain area | Drain area (square meter) | Scalar | |
sp_as | Source area | Source area (square meter) | Scalar | |
sp_pd | Drain perimeter | Drain perimeter (meter) | Scalar | |
sp_ps | Source perimeter | Source perimeter (meter) | Scalar | |
sp_nrd | Drain squares | Equivalent number of squares of the drain diffusion | Scalar | |
sp_nrs | Source squares | Equivalent number of squares of the source diffusion | Scalar | |
sp_icvds | Initial D-S voltage | Initial drain source voltage (volts) | Scalar | |
sp_icvgs | Initial G-S voltage | Initial gate source voltage (volts) | Scalar | |
sp_icvbs | Initial B-S voltage | Initial bulk source voltage (volts) | Scalar | |
sp_temp | Instance operating temperature | The temperature at which the mosfet is operating (degrees Celsius) | Scalar | |
sp_dtemp | Instance temperature difference | Temperature variation relative to the simulation temperature (Degress Celsius) | Scalar | |
sp_js | Bulk jct. sat. current density | Bulk junction saturation current density | Scalar | |
sp_delvto | Threshold voltage Adjust | The threshold voltage is defined as the gate voltage above which the transistor becomes conductive due to an inversion of a thin layer (volts) | Scalar | |
sp_tnom | Parameter measurement temperature | This parameter describes the process of measuring a current local temperature | Scalar | |
sp_Spice | Additional Spice Parameters | For more details, see Additional Spice Parameters. | String |
Ports
| Name | Type | Description | IO Type | Number |
|---|---|---|---|---|
Drain | implicit | Drain node | 1 | |
Gate | implicit | Gate node | 2 | |
Source | implicit | Source node | 3 | |
Bulk | implicit | Bulk node | 4 |