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A load resistance 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. Caps hold a charge voltage if there is no lm833m. TonyEErocketscientist You were rocket my apologize, adding a load fixed the offset issue.
LMN Datasheet(PDF) – STMicroelectronics
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 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.
So what is the load? The reasoning I am using such a high value capacitor is due to it high pass nature it creature with the load, the higher I use the likely hood it will pass all the output signal to the output stage. What happens if you put a K pull-down on the output?
Dual Audio Operational Amplifier
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.
Note there is no need for such a large value: Email Required, but never shown. And what do you mean by VOM?
Sign up using Email and Password. What’s the leakage current spec on the 1mF cap? Your last comment implies it has trouble even driving ohms, which is not very ddatasheet.
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? Home Questions Tags Users Unanswered.
Voltage output swing is spec’ed in the datasheet for a load of 10, ohms figs 17, The clue is in its name Sign up using Facebook.
LMN Datasheet pdf – DUAL OPERATIONAL AMPLIFIER – Motorola
Curious as why this happened? What’s connected to the output?
If the resulting DC bias is a problem, there are 2 options:. Increase the load to 2 kilohms. Capacitor allowing DC through?