Inverting Voltage Amplifier
Here we are understanding operational amplifiers (op amps). Op Amps perform multiplications by a negative constant. Here is an example of a circuit diagram that includes the OP 27 and its representation in the circuit.
This is our experimental data for the feedback resistance and the input resistor. The ratio is very close to the theoretical value.
Below is the circuit of the above circuit diagram using an OP Amp. We connected the OP Amp across the bridge of the breadboard which makes designing a circuit on the breadboard very convenient.
Here we measured and plotted the Vin vs Vout. The graph of the data demonstrates the properties of the Op Amp because we see the amp saturates when approaching the supply rail voltages. It is also inverted from the input voltages.
Op Amps are a new concept introduced to us in class. They behave differently depending on the circuit built around them.
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