We do a pre-lab to see that the relationship between V in and V out. We find that theoretically the relationship would be Vout= -2 Vin approximately.
Plot between Vin and Vout
Circuit
Discussion:
We find that that the output voltage start as a horizontal line when the input voltage is higher than 1.5V or lower than-2V. Ideally the output voltage of the op-amp should be 5V (or -5V); since the op amp is cheap, the realm is -3.45V to 4.22V. The upper range is larger since the offset of the OPAM.
Summary:
Today, we talk about operational amplifiers, and explain the internal of it. Most time, we can treat op amp as ideal op amps so that it is easy to analysis. We also learn how useful the opam is and examine the physical property of opam.
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