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Note there is no need for such a large value: Email Required, but never shown. Increase the load to 2 kilohms. So what is the load? Post as a guest Name. Sign up using Email and Password.

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If it’s really 1 mF uF it’s an electrolytic capacitor, which WILL leak a few microamps, depending on age, temperature, and bias voltage. Sign up or log in Sign up using Google. The clue is in its name What’s connected to the output? Home Questions Tags Users Unanswered. What happens if you put a K pull-down on the output? By clicking “Post Your Answer”, you acknowledge that you have read our updated terms of serviceprivacy policy and cookie policyand that your continued use of the website is subject to these policies.

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Dual Audio Operational Amplifier

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A load datashee of a few kilohms will reduce the DC output to a few millivolts Or replace the capacitor with a lower leakage type film cap or ceramic. The reasoning I am using such a high value capacitor is due to it high pass nature it creature with the load, the higher Datadheet use the likely hood it will pass all the output signal to the output stage. If the resulting DC bias datawheet a problem, there are 2 options: An oscilloscope is only connected to the output, i double checked, but its on the board board with many components on it, maybe that could be it?

Voltage output swing is spec’ed in the datasheet for a load of 10, ohms figs 17, If a lower one would be used it will attenuate dataeheet signal at the output. What’s the leakage current spec on the 1mF cap?

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I have a load currently of 10ohms, it removes the DC offset however the Voltage pkpk severely drops oppose to taking it out. It will be utterly hopeless driving 10 ohms.

op amp – Capacitor allowing DC through? LMN – Electrical Engineering Stack Exchange

Your last comment implies it has trouble even driving ohms, which is not very surprising. TonyEErocketscientist You were rocket my apologize, adding a load fixed the offset issue.

If the resulting DC bias is a problem, there are 2 options:. Curious as why this happened? Caps hold a charge voltage if there is no load. Capacitor allowing DC through? To minimise the leakage it needs to be properly biased about half its rated voltage so that the electric field builds up the insulating layer by Sign up using Facebook.

Other parameters, for a load of 2 kilohms Power BW page 3, figs 6,7,8 and others. But that makes a lot of more sense, thank you so much for shedding some light.