Op Amp built with discret components and having GBP over 30 MHz.

AI Thread Summary
A user seeks a schematic for a discrete operational amplifier (op-amp) with a gain bandwidth product (GBP) over 30 MHz, citing issues with ESD sensitivity in monolithic ICs. The discussion highlights that discrete component construction may not be preferable, as monolithic op-amps are generally more efficient. Suggestions include using external diodes for ESD protection, which are simpler than designing a discrete op-amp. The conversation emphasizes that while discrete designs are possible, they are more complex and less practical for high-frequency applications. Ultimately, the focus remains on the challenges and considerations of using discrete components versus monolithic solutions.
Ravaner
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Hello, for technical reasons I'm looking for a schematic of an Op Amp built with discret components and having GBP over 30 MHz.
 
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Is this a class assignment? Otherwise, I can think of no reasons why discreet component construction is preferable to a monolithic op-amp.
 
Hello, thanks for your reply. In fact I previously used an monolithic IC existing only in smd packaging, and as these IC's are very sensitive to Esd, it was necessary to replace them very often, and moving an smd off ... That the reason for which I had rather to use discrete components easy to replace.
 
Most IC packages will have the schematic included in the datasheet. Though the finer details of the channel widths and such are probably omitted.
 
You can easily protect a chip from ESD with external diodes. Making a discrete op-amp for that bandwidth would be far more difficult than just adding those diodes. If you've some problem with just using diodes, we can discuss fancier protection circuits--which would still be orders of magnitude simpler than designing a discrete op amp.
 

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