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20V isolated NMOS FET
---------------------
Spice Model Information
~~~~~~~~~~~~~~~~~~~~~~~
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- Cell Name: :cell: `sky130_fd_pr__nfet_extenddrain`
- Model Name: :model: `sky130_fd_pr__nfet_20v0_iso`
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Operating Voltages where SPICE models are valid, subject to SOA limitations:
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- :math: `V_{DS} = 0` to +22V
- :math: `V_{GS} = 0` to 5.5V
- :math: `V_{BS} = 0` to -2.0V
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Details
~~~~~~~
The 20V isolated NMOS FET has the same construction as the 20V NMOS FET, but is built over a Deep N-well. This permits the p-well to be isolated from the substrate and permit “high-side” usage (where the PW body is held above ground).
Major model output parameters are shown below and compared against the EDR (e-test) specs
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.. include :: nfet_20v0_iso-table0.rst
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The symbol of the :model: `sky130_fd_pr__nfet_20v0_iso` (20V isolated NMOS FET) is shown below.
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|symbol-nfet_20v0_iso|
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The cross-section of the 20V isolated NMOS FET is shown below.
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|cross-section-nfet_20v0_iso|
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.. |symbol-nfet_20v0_iso| image :: symbol-nfet_20v0_iso.svg
.. |cross-section-nfet_20v0_iso| image :: cross-section-nfet_20v0_iso.svg
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