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In a summing amplifier, how is the output voltage calculated?

Practice Questions

Q1
In a summing amplifier, how is the output voltage calculated?
  1. Vout = Rf * (V1 + V2)
  2. Vout = (V1 + V2)/Rf
  3. Vout = Rf * (V1 - V2)
  4. Vout = (V1 - V2)/Rf

Questions & Step-by-Step Solutions

In a summing amplifier, how is the output voltage calculated?
  • Step 1: Identify the input voltages (V1, V2) that you want to sum.
  • Step 2: Determine the feedback resistor value (Rf) used in the summing amplifier circuit.
  • Step 3: Add the input voltages together (V1 + V2).
  • Step 4: Multiply the sum of the input voltages by the feedback resistor (Rf) to get the output voltage (Vout = Rf * (V1 + V2)).
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