Changed layout of National Data Sheet to TI format. LevelC-UNLIM. to LMM. LMN. ACTIVE. PDIP. NFF. TBD. Call TI. Call TI. LMN Datasheet, LMN National Semiconductor Frequency to Voltage Converter Datasheet, buy LMN. LMN LM – Frequency to Voltage Converter, Package: Soic Narrow, Pin Nb= The LM Details, datasheet, quote on part number: LMN.

Author: Samular Goltishicage
Country: Russian Federation
Language: English (Spanish)
Genre: Politics
Published (Last): 4 August 2013
Pages: 462
PDF File Size: 16.65 Mb
ePub File Size: 7.70 Mb
ISBN: 352-8-11796-239-5
Downloads: 31030
Price: Free* [*Free Regsitration Required]
Uploader: Doushakar

This site uses cookies to help personalise content, tailor datashedt experience and to keep you logged in if you register. Stick with the LM I’m sure the LM is capable of doing what you want, it just needs some component changes to set the range. So, what can I do. Why not connect the output to a transistor base.

LMN Datasheet(PDF) – TI store

That range can give me a larger range to have a more accuracy signal to do speed control. You can then drive the transistor to give you an output of up to Vcc. The more versatile configurations provide differential ta. With this version the tachometer input may be floated and the op amp becomes suitable for active filter conditioning of the tachom- eter output. The 8 pin package has the op-amp input stage’s inverting input connected to ground via pin 8the non-inverting input is on pin 1.


Sebi Active Member Jul 2, Frequency to Voltage Converter. Both of these configurations are available with an active shunt regulator connected across the power leads.

Also, the ripple of the output will affect the output range or not? Electro Tech is an online dtaasheet with overmembers who enjoy talking about and building electronic circuits, projects and gadgets. It only can be varying within V output for 40Hz input. LM – 8 pin package As you show the 8 pin package circuit, I assume this is what you have – there is a 14 pin version as well.

So, can you give me any advice about the accuracy of the circuit? BUT As the lm2970n will lose some voltage it will stop short of 12v out.

Datasheets search archive of electronic components datasheets

To participate you need to register. This feature allows either a ground or supply referred load of up to 50 mA. To do better requires more info – supply voltage, rest of circuit components?

Now I understand the chip gives you a 0volts to Vcc variation for datassheet Hz to fmax. But I need 10khz to 40khz give me a 0 volt – Vcc variation.

National Semiconductor – datasheet pdf

The IC has three basic sections, a trip fatasheet, a charge pump and an op amp, if the charge pump and following integrator can’t be set to the desired time constant then the op amp can give lots of gain.


Media New media New darasheet Search media. The more versatile configurations provide differential ta- chometer input and uncommitted op amp inputs. Forums New posts Search forums. This version is well suited for single.

This version is well suited for single speed or frequency switching or fully buffered frequency to voltage conversion applications. I have made the circuit but seem not work. Sorry, can anybody give me advice or the circuit is correct or any incorrect place? But i want to know the accuracy of this circuit?

I don’t know why. As i read from d’sheet it can’t do this. Also, I need to be very conservative wrt adding components. The tachom- eter uses a charge pump technique and offers frequency doubling for low ripple, full input protection in two versions LM, LM and its output swings to ground for a zero frequency input.

I’m trying to sense the freq of a square wave from 10KHz – 40KHz range. Thank you very much. Or any other methods can achieve the task? By continuing to use this site, you are consenting to our use of cookies.

National Semiconductor Electronic Components Datasheet. Don’t worry about calculating the R1,C1,C2 values.