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[SOLVED] How much gain can you get with an LM318 op amp?

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obrien135

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Hello,

I've been examining the data sheets for the LM318 op amp. I am trying to figure out how much gain you can get at 10MHz with a single stage of an LM318, and still have it be stable. Does anyone know this? I thought the data sheet would give a gain/bandwidth product figure, but it doesn't.

George
 

In my opinion, the datasheet gives all necessary information. You would want to apply feedforward compensation for optimal phase margin and highest gain at high frequencies. According to the bode diagram, you can expect about 10 dB at 10 MHz. You should consider that the achievable large signal amplitude is very limited due to slew rate restriction. Also the basic idea of OP circuits is to have some loop gain to achieve stable operation and linearity, so I doubt if operation of this antique OP at 10 MHz is reasonable.
 
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