Signal amplifier

173

02:40:59

Let's say the sinus generator is the signal received by the antenna. The opamp has a gain of 30001. And the signal becomes strong enough to be used in a circuit. Vary the two lower resistors to change the gain. Remember that the gain is equal to: 1+[ (resistor in feedback) /(resistor on the inverting input) ]

published 9 years ago

hurz

9 years ago

At least for low gain settings dont forget to add 1 in your formula.

Ross

9 years ago

@hurz yep you're right

lucagessi

9 years ago

This would have a very limitated bandwith. Think about gain bandwith product

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