5M10.95 - Operational Amplifiers - (Op-amps)

Code Number:
Demo Title:
Operational Amplifiers - (Op-amps)
Integrated Circuits and Chips
Area of Study:
Electricity & Magnetism
Operational Amplifier Circuit Demos, Wave Generator (Wavetek), Oscilloscope (Tektronix 2235), Batteries - 9 volt.

There are 4 made up circuit that are designed around the 741 op-amp chip.  They are the 'Voltage Follower', the 'Integrator', the 'Differentiator', and the '1 to 10 Inverting Amplifier'.  In each case the power is supplied by two 9 volt batteries.  All the ground leads from the wave generator and the two channels of the oscilloscope must be connected to the ground post.  The wave generator input and channel 1 (the reference) of the oscilloscope must be in the input post.  Channel 2 of the oscilloscope is then connected to the output post.  The wave generator can be set to the sine wave function for both the 'Voltage Follower' and the '1 to 10 Inverting Amplifier'.  The 'Integrator needs a square wave input.  A square wave and a triangular wave are both used in the 'Differentiator' to show what happens to the waveform.

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