Analog Electronics with LabVIEW®

P2.3. Amplifier with Signal and Gain Measurement

Programming Exercise 2.3 follows below. (Advanced-Optional) Procedure Move the bottom of RG2 from ground to Chan1_out. The VI will send out a sine-wave signal via this channel with peak Vs. Set Chan0_out (VDD) as in the circuit for P2.2 above (for VDS ≈ VDD/2). Run AmpP2.3.vi (Project02.llb) for various values of Vs. Re-set for a Vo peak of about 1V (VDS/3). Note the gains, which are Vo/Vs and Vo/Vg. Verify that the gain from the source is about two-thirds of the gain the gate, based on the selection (ratio) of the gate bias resistors. Default and save the Front Panel for the Mathcad evaluation. ...