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Lab+2+Op+Amp+Circuits

# Lab+2+Op+Amp+Circuits - EECS 70LB Spring 2011 Lab 2...

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EECS 70LB Spring 2011 Lab 2: Operational Amplifier (Op Amp) Circuits Reading from Chapter 7 of Scherz: 7.2: Theory 7.3: How an Op Amp works 7.4: Negative Feedback Summary: There are 2 circuits for this lab. Components Op Amp (741 series). This is one of the most popular op amps. It is based on bipolar transistor technology and a portion of the circuit will be covered in EECS 170C. 2-1 Inverting Amplifier (Fig. 7.11, pp 543, Scherz) V o u t R 1 O U T 1 + 3 - 2 V + 4 V - 1 1 L M 3 2 4 0 V 4 0 R 2 Fig 3-1. Inverting Amplifier R1=10k , R2=100k , RL=10k ; Connect ±Vs to ±12 V. Procedure: (1) Connect the circuit as shown in Fig. 3-1. Use a 10 kHz sinusoidal signal with amplitude of 0.5 V as the source. Display both input and output waveforms on the oscilloscope. Increase the amplitude of input voltage continuously until the output waveform is clamped. When this happens, increase Vs from ±12 V to ±15 V. (2) Use a 10 kHz sinusoidal signal with amplitude of 0.5 V as the source. Change RL from 10 k to 1 k and 1 M .

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Lab+2+Op+Amp+Circuits - EECS 70LB Spring 2011 Lab 2...

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