| 4.0 Resistor Models |
| =================== |
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| .. csv-table:: |
| :file: tables_clear/25_Resistor_Models.csv |
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| 4.1 Model Features |
| ------------------ |
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| The NGSPICE and XYCE resistor models include: |
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| - Multiple lumped element R-C sub-circuit. |
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| - Separate body and end resistance temperature coefficients. |
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| - Parasitic capacitance between the resistor and substrate is accounted for. |
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| - Device temperature difference with respect to circuit temperature (dtemp). |
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| - Resistors connected in series cannot represented using instance parameter “s” |
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| 4.2 Model Limitations and Restrictions |
| -------------------------------------- |
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| Known limitations of the NGSPICE and XYCE resistor models: |
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| **To be added** |
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| 4.3 Model Syntax for Resistors |
| ------------------------------ |
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| **Input Parameters:** |
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| - w: resistor design width (m) |
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| - l: resistor design length (m) |
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| - s: Number of resistors in series |
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| **General Syntax:** |
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| Xxx IN OUT SUB resistor_model_name w= l= s= |
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| **Examples:** |
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| XR1 1 2 3 nwell w=10um l=10um s=2 |
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| 4.4 How to Use the Models |
| ------------------------- |
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| 4.4.1 For NGSPICE Users |
| ....................... |
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| **To be added** |
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| 4.4.2 For XYCE Users |
| .................... |
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| **To be added** |
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