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Old 12th September 2006, 04:14 PM   #1
Khron is offline Khron  Finland
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Default Opamp decoupling

I'm in the process of building myself an active 2-way crossover (Nuuk's discrete buffer for the input, TI TLE2072s as active devices and OPA627 on the outputs).

Does each opamp need a 0.1uF cap

1) between each of the supply rails and GND
2) between the two supply rails (V+ to V-)
3) both of the above ?
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Old 12th September 2006, 04:36 PM   #2
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Default #3 = for best results

... but one for each rail driving both op-amps would probably do the trick.

I would build it first, check it out, before adding any more caps than necessary other than prudent practice.

(You might look / see TI's app. notes = http://focus.ti.com/docs/prod/folder...plicationnotes & http://focus.ti.com/docs/prod/folder...plicationnotes )

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