Tweakers' Asylum

Shouldn't hurt but may not help either...

24.17.167.105

In Reply to: RE: "you can run just about any (non-inverting) opamp single ended mode" posted by 1973shovel on June 10, 2008 at 09:23:20

One more question, if you don't mind. Would it still be wise to use a bypass cap on pin #8 to ground? I read a lot about the 2604 (and other op-amps) here at TA, and many talked of bypassing pins 4 and 8. In this circuit, it would seem I would just do pin #8. Correct, or would this do something to the voltage divider the circuit uses?

It is standard practice to place bypass caps at the power supply pins on IC's. These caps are usually placed as physically close to the IC as possible. This is done in larger designs to keep noise generated internally by the IC's from getting on the power supply rails and effecting other IC's and circuits.

But before you or anyone reading this goes nuts adding bypass caps to every IC in their receiver. This must be done with caution specially when dealing with digital IC's as too much capacitance on the power supply rails can cause ringing on the rail it's self.

If this is a one IC circuit a bypass cap wont do much but it may help remove any high frequency oscillations caused by the power supply being far away from the circuit.

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RE: Shouldn't hurt but may not help either... - 1973shovel 20:19:58 06/10/08 (0)

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