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Lab 7 Requirements 1. FET Characteristics diagram (circuit or breadboard) I_DSS, V_P for a few samples are they within quoted range plot I_D curve log plot I_D curve linear, confirm quadratic 2. FET Current Sources a. diagram (circuit or breadboard) VDS, Iout vs RLoad VDS when constant current breaks down compare to Vgs-Vt 3. Source Follower a. diagram (circuit or breadboard) measure gain why not unity infer gm compare to data sheets how doe compare to BJT? b. diagram (circuit or breadboard) measure gain measure input R measure offset swap FET, R to determine reason for offset 4. FET as Variable Resistor a. diagram (circuit or breadboard) distortion with triangle wave explain how you would predict explain how circuit treats larger input waveform b. diagram (circuit or breadboard) show improvement explain why improvement happens c. diagram (circuit or breadboard) show modulation
