The LM series are general purpose operational amplifi- ers which feature improved performance over industry stan- dards like the LM They are direct. LMJ datasheet, LMJ pdf, LMJ data sheet, datasheet, data sheet, pdf, National Semiconductor, Operational Amplifier. Order Number LMJ, LMJ/, LMCN. See NS Package Number J08A , M08A or N08E. Ceramic Flatpak. Order Number LMW/
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So I tried creating a basic inverting amplifier using this IC and the oscilloscope showed the same input signal like waveform as the output signal. See the How to Ask page for help clarifying this question. Therefore it seems possible that some or all of your problems could be explained by a faulty lm7411j counterfeit batch of LMCN ICs, since at least 4 of them from your story came from the same source.
Depending where your shop sourced the components, then these are some of the possibilities you should consider. Blogger 1 However I can answer the main question and give a suggestion for a possible cause of your problem: No idea what you are doing.
Then I tried a non inverting amplifier but that didn’t work too. Should have asked ‘What is the difference between letter N and P at the end of LMC’ instead of giving out details of the project to create a background to the question which made people drove outta their minds: Shops can get faulty batches of components, or perhaps counterfeit etc.
I assumed that it’s not possible for 6 chips to be burnt like that Wrong assumption. Home Questions Tags Users Unanswered. Addition to that, the IC seems to be heating up a lot. Just asked this q to get to know what this N and P are! Looking carefully at the sequence of events, there seems a possible cause. Olin Lathrop k 30 But my guess is that they are electrically identical.
Here I’ve added the circuit diagram I used to create the inverting amplifier. They sell only CNs. Yes, post a circuit. Do these last letters N and P mean anything like p type or n type?
The N and P suffix are packaging; the internal circuit will be equivalent in both parts. Some other shop sells CP and they work. Please clarify your specific problem or add additional details to highlight exactly what you need.
Can’t figure out what you are talking about. Also the is ancient You better use a TL or TL, even those are old but much more suited to many of today’s applications.
Accepted answer provided a better insight! Somehow I got the project done perfectly without LMs. The project description was to create a background. That fact that one heats up and the other works suggests the pinouts are different. Don’t use it like an op amp. Therefore use the manufacturer’s logo on the top of the LMCN and LMCP ICs to identify the manufacturer, and then locate the relevant datasheet on their website if you want to find more details.
Was just wondering why CN didn’t work when CP did. LMC ICs sourced from the shop did not work. So the difference could also be described as most? If this question can be reworded to fit the rules in the help centerplease edit the question. Where do you see the difference now?
LMJ Datasheet, PDF – Alldatasheet
Same input signal as the output. Just to let you know, this description of your project doesn’t make sense e. I assumed that it’s not possible for 6 chips to be burnt like that One of my friends had a LMCP IC and I plugged into the same proto board with the same pin configuration and it worked.
It is an audio power amplifier. Is it an analog circuit? Unfortunately some parts of your project are unclear. However I can answer the main question and give a suggestion for a possible cause of your problem:.
What is the RS, then? Other packaging type letters are also used, but these can all vary between manufacturers. I’m having an analog project where I have to amplify a weak signal coming out of a photo transistor. When I google, for both ICs, it’s the same datasheet. In this context, no. Carefully read the datasheet and understand its limitations. I assumed that it’s not possible for 6 chips to be burnt like that. Ebay and similar sources outside the official manufacturer’s supply chain, have a higher chance of counterfeit components.
We can only help when sufficient information is presented; draw a circuit diagram – the small circuit widget in the edit controls will open a schematic editor.