For example, a question asked to design an op-amp circuit to amplify the signal 10 times. Let say that I'm using a non-inverting amplifier to do this, now how do I amplify the signal 10 times? Steps might be useful.
Thank you :)
Thank you :)
-
Since you want a non-inverting amplification of 10.
Connect R2 between the output and the input (-) terminal.
Connect R1 from (-) terminal to ground.
Your input source is connect between the ground and the (+)
terminal.
The gain of this configuration is
Vout/Vin = 1 + R2/R1
since you want a gain of 10
10 = 1 + R2/R1
R2 needs to be 9 times larger than R1
left R2 be 9K and R1 be 1K
Connect R2 between the output and the input (-) terminal.
Connect R1 from (-) terminal to ground.
Your input source is connect between the ground and the (+)
terminal.
The gain of this configuration is
Vout/Vin = 1 + R2/R1
since you want a gain of 10
10 = 1 + R2/R1
R2 needs to be 9 times larger than R1
left R2 be 9K and R1 be 1K
-
Ten stages? I've never seen an opamp circuit with 10 stages, presumably each stage with an opamp. Opamps have so much gain that 10 stages are never need.
Reference has a non-inverting opamp, and the math needed to calculate the resistor values.
.
Reference has a non-inverting opamp, and the math needed to calculate the resistor values.
.
-
I really doubt the question meant 10 stages. I'm sure it meant a gain of 10, which is a standard negative feedback/virtual ground circuit with R1 = 10,000R and R2 = 100,000R or something.
-
Do you mean ten stages of amplification, or are you talking about amplifying the signal amplitude by a factor of ten?