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10kHz to 2MHz , 0.25mW to 150mW amplifier
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dmills:
You sure?

0.5mW in 150mW out, so A = 300 times.
300 times power in dB is  10 log(300) = ~25dB, I have no idea where you got 57dB from.

Yea, current feedback opamp or something of the sort, but notice that the source impedance seems to be quite high, so something fast and voltage feedback may be a better choice. Either way, not hard.   

Regards, Dan.
Zero999:

--- Quote from: dmills on April 19, 2018, 03:33:20 pm ---You sure?

0.5mW in 150mW out, so A = 300 times.
300 times power in dB is  10 log(300) = ~25dB, I have no idea where you got 57dB from.
--- End quote ---
My mistake. I used the wrong log function. I pressed loge, rather than log10.


--- Quote ---Yea, current feedback opamp or something of the sort, but notice that the source impedance seems to be quite high, so something fast and voltage feedback may be a better choice. Either way, not hard.   

--- End quote ---
Yes, a high speed op-amp my do, although it may be a bit more expensive, than a video amp IC, but I haven't looked at this for a long time.
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