Todd Bailey wrote:

>>> Recently I started designing a discrete BJT op-amp (my first time) for
>>> an audio circuit, and in doing so have been studying the
>>> manufacturers' schematics of different monolithic op-amps.  
> 
>> I'm not sure what you are trying to do, but it seems to me that the
>> techniques to use when building an amplifier from discrete components
>> are quite different from the ones to use when creating an integrated
>> circuit.
> 
> I'm afraid I don't know very much about the intricacies of integrated
> circuit design, but it seemed to me that, generally speaking, the
> manufacturers' datasheets were a lot more exact about the specs and
> theory of operation involved with their devices than audio
> experimenters.  

Yes, probably so :)  But even though they publish their "circuits"
sometimes, they don't publish the components in those circuits :)  So those
data sheets don't help a whole lot.

> I'd really like to learn the theory behind what I'm doing, especially
> since the components involved in discrete design can be so pricey and
> there are so many opinions on the subject floating around. That having
> been said, what you say seems believable.  Could you recommend a good
> book or reference on the technical issues of discrete op-amp design?
> I've found a few web sites, but that's it. 

I'm sorry, but I'm not really a discrete analog whiz :) and can't help you
out here. Hopefully some of the others here with more analog design
experience can jump in here and recommend something.

Just out of curiosity: why do you insist on discrete? Just out of
curiosity? :)

Gerhard

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