AW: Capacitive loading of op-amps

Haible Juergen Juergen.Haible at nbgm.siemens.de
Mon Dec 21 12:36:37 CET 1998



	>While inventorying some Analog Devices ICs today, I came 
	>across AD688 precision references.  The data sheet addresses
	>capacitive loading of the part's on-board op-amps. The technique
	>described is readily applicable to output-bypassed applications
	>such as that in Joachim's schematic.
	>
	>FWIW, see page 8 of 8 in the .pdf file at:
> http://www.analog.com/pdf/ad688.pdf
> 
Fig. 14b - yes, that's the way to drive cap values that
are inside the "forbidden" range. Overkill for buffering
an auxilliary voltage like in Joachim's oscillator, but
very helpful for audio outputs. (Where most people just
add a series resistor.)

JH.




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