Order Number LMM-8 or LMN See NS Package Number M08A or N08E. Order Number LMM-8 or LMN See NS Package. versions (LM, LM) and its output swings. Solenoids Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet. 2All trademarks are Product Folder Links: LMN LMN. LMN-8 Datasheet, LMN-8 National Semiconductor Frequency to Voltage Converter Datasheet, buy LMN

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Most Active Software Boards: The rest would be relatively easy with ideal components. Electronics Assistant includes all these calculators and more lm2917n8 a stand-alone Windows application.

Trying to find a component? Please let me know if you have such a model.

I had the idea to use an LMN-8 frequency to voltage converter and after reading through the data knocked up a circuit. Kittmaster’s Component Database http: The charge pump would be problematic without more detail about it’s internal construction. Is there any way of applying a positive offset of say 0. Thanks for the info. I installed it all on a diesel shunting locomotive yesterday and it now has a working tacho for the first time in many years.

Only problem is that you don’t get a linear response near 0V. Message Edited by lacy on A simple footprint is easy to make, however, the simulation file s are much more complicated and I do not have to know how to do this. Not sure where to start? If you find these calculators useful then why not download Electronics Assistant?


Datassheet to the formulas I should be good up to 30K Hz input it previously stopped increasing at 3Khz not 30 as I had written previously. I don’t even know if your version has this chip or not.

I chose the zener version because it offers output stability with supply rail fluctuations which I will have off an alternator, but I think I will try datasheett limit those with a regulator on the supply instead now.

There is another version of the same chip LMN-8 which doesn’t have this zener so I will try one of those first I think, Vcc will be 24v to the chip so higher output voltage should be possible. Connectors RJxx RJ45 lm9217n-8.

National Semiconductor – datasheet pdf

You might have to use a lower voltage regulator, a low drop-out type or an LM or similar adjustable regulator set to around 20V or so. Do I need a transistor amplifier? Message Edited by noth on You km2917n-8 look to see if you have it and whether or not it would be suitable for your apllication. Banana Used on test leads etc. I was wondering if anyone had a model of this component. Message 1 of 3.

Multisim and Ultiboard

Just waiting for my new chip and I’ll report on the results. Thanks for any help. I’ve hooked up an LM now to supply 20v as you suggested. Other than this, you are left with the only option of creating your own and I don’t know how that could be accomplished with the information contained in the datasheet.


The datasheet for this indicates that it is only good for 50hz to 1Khz so I don’t know if this would help any depending on the frequency your working with. Remember that the drop-out voltage of a standard 78x regulator is V, so a probably won’t work. Simon Carter Electronics http: Auto-suggest helps you quickly narrow down your search results by suggesting possible matches as you type.

You need to experiment to see if this would work though – it’s not something I’ve had the need to try.

I have not been able to find a model of this anywhere. I am designing a circuit in MultiSim and I am utilizing a LMN pin frequency to voltage converter as part of the circuit. Want to suggest a link to add here, exchange datashwet with us or get a banner for your website?

Message 2 of 3. The NS datasheet is poor at explaining this difference but at least one of the example circuits using the has a v output with a 15v supply.

Op-amps such as the LM are intended for single-supply operation LM is quad, not sure if there is a single version. If it is just the output voltage that is low you might be OK with an op-amp on a single supply – after all the output doesn’t need to swing negative. Post any general technical questions here.