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AC & DC Analysis
1) How to Simulate a Schmitt Buffer using HSPICE (◄CLICK HERE) DC analysis is useful when generating I-V curves for an IO driver; measuring DC voltage levels; Static currents; gate trip points. Click the above link to see example for measurement of hysteresis levels on a Schmitt Trigger input buffer.
2) How to Measure Input Capacitance using AC Analysis (◄CLICK HERE) AC analysis is useful for all frequency-domain measurements. Click above link to see an example showing how AC analysis can be used to measure the input capacitance for an inverter. This method is also what I use to measure a buffer's "C_comp" value for my IBIS models.
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