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Hello, so lets say i'm amplifying a 0.5Vpp 50kHz signal to a 25Vpp so the gain is 50. And my op-amp is closed loop inverting with 2 resistors, the feedback resistor and the resistor at Vin. What should my resistor values be? I know its ratio has to be 50:1 but what exactly should the values be? |
July 12, 2020 |
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You can choose anything you want within limits. The limits are overloading the opamp with too low resistance and getting the current so low that the offset is significant if the resistance is too high. You might try, say 10k input and 500k feedback but this depends very much on the opamp you're using |
July 12, 2020 |
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