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Post as a guest Name. 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.
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? Datashheet it’s really 1 mF uF it’s an electrolytic capacitor, which WILL leak a few microamps, depending on age, temperature, and bias voltage. What’s connected to the output? Sign up using Email and Password.
LMN Datasheet(PDF) – National Semiconductor (TI)
Home Questions Tags Users Unanswered. Your last comment implies it has trouble even driving ohms, which is not very surprising. By using our site, you acknowledge that you have read and understand our Cookie DatashwetLk833n Policyand our Terms of Service. Other parameters, for a load of 2 kilohms Power BW page 3, figs 6,7,8 and others. Sign up using Facebook. What happens if you put a K pull-down on the output?
If the resulting Datasjeet bias is a problem, there are 2 options:. Curious as why this happened? Sign up or log in Sign up using Google.
If a lower one would be used it will attenuate the signal at the output. 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. Capacitor allowing DC through? So what is the load?
But that makes a lot of more sense, thank you so much for shedding some light. Voltage ,m833n swing is spec’ed in the datasheet for a load of 10, ohms figs 17, Email Required, but never shown. I have a load currently of 10ohms, it removes the DC offset however the Voltage pkpk severely drops oppose to taking it out.
Dual Audio Operational Amplifier
Increase the load to 2 kilohms. Caps hold a charge voltage if there is no load. Datashert the leakage current spec on the 1mF cap?
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 It will be utterly hopeless driving 10 ohms.
The clue is in its name If the resulting DC bias is a problem, there are 2 options: And what do you mean by VOM?