Higher Physics

Electricity and Electronics - Activity 18 

Saturation

Aim - To determine the saturation voltage of the Op-Amp     Instructions
V1   is shown on the left voltmeter and V0 is shown on the right voltmeter.
The input voltage is set by clicking on the potentiometer.
Clicking on the left decreases the voltage in 0.3 V steps
Clicking on the right increases the voltage in 0.3 V steps.
   

  • Set the value of the input voltage V1 to the values shown in the tables and record the corresponding value of the output voltage V0
V1  (V) V0  (V)
0.0  
0.3  
0.6  
0.9  
1.2  
1.5  
1.8  
2.1  
2.4  
V1  (V) V0  (V)
0.0  
-0.3  
-0.6  
-0.9  
-1.2  
-1.5  
-1.8  
-2.1  
-2.4  
  • Graph the results of both tables.
  • State the gain setting of the inverting amplifier.
  • Describe what happens to the value of the output voltage V0 as the input voltage  V1  is increased
  • State the maximum output voltages available from the amplifier.
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