47 lines
1.5 KiB
ReStructuredText
47 lines
1.5 KiB
ReStructuredText
Bipolar (PNP)
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-------------
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Spice Model Information
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~~~~~~~~~~~~~~~~~~~~~~~
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- Cell Name: :cell:`sky130_fd_pr__pnp_05v5`
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- Model Names: :model:`sky130_fd_pr__pnp_05v5`, :model:`sky130_fd_pr__pnp_05v5`
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Operating regime where SPICE models are valid
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- \|V\ :sub:`CE`\ \| = 0 to 5.0V
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- \|V\ :sub:`BE`\ \| = 0 to 5.0V
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- I\ :sub:`CE` = 0.01 to 10 µA/µm\ :sup:`2`
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Details
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~~~~~~~
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The SKY130 process offer a “free” PNP device, which utilizes the substrate as the collector. This device is not independently optimized, and can be used in forward-active mode. The following sizes of PNP are available:
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- ungated device with emitter 0.68 x 0.68 (A=0.4624 µm\ :sup:`2`)
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- ungated device with emitter 3.4 x 3.4 (A=11.56 µm\ :sup:`2`)
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Using this device must be done in conjunction with the correct guard rings, to avoid potential latchup issues with nearby circuitry. Reverse-active mode operation of the BJT’s are neither modeled nor permitted.
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E-test specs for these devices are shown in the table below:
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.. include:: pnp_05v0-table0.rst
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Symbols for the :model:`sky130_fd_pr__pnp_05v5` is shown below
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|symbol-pnp_05v0-a| |symbol-pnp_05v0-b|
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The cross-section of the :model:`sky130_fd_pr__pnp_05v5` is shown below.
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No deep n-well exists in this device; the collector is the substrate.
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|cross-section-pnp_05v0|
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.. |symbol-pnp_05v0-a| image:: symbol-pnp_05v0-a.svg
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.. |symbol-pnp_05v0-b| image:: symbol-pnp_05v0-b.svg
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.. |cross-section-pnp_05v0| image:: cross-section-pnp_05v0.svg
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