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Using the 4200A-SCS Parameter Analyzer Built-in FFT Functions to Calculate Spectral Density, 1/F Noise, AC Impedance and Other Parameters


The 4200A-SCS Parameter Analyzer with Clarius+ V1.9 software includes FFT analysis functions that enable the user to automatically make frequency-based calculations on time domain measurements without having to download the data and perform analysis in a separate tool, enabling important test results much faster.  This application note explains these new functions along with some typical use cases for FFT parameter extractions including current spectral density measurements using both an SMU and the PMU, resistor thermal noise measurements, and AC impedance calculations of an RC circuit.