LM2907N DATASHEET PDF

Tazahn Welcome to our site! The input signal must therefore go positive AND negative for the datashet to work. But i want to know the accuracy of this circuit? The two basic configurations offered include an 8-pin device with a ground referenced tachometer input and an internal connection between the tachometer output and the op amp non-inverting input.

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Tazahn Welcome to our site! The input signal must therefore go positive AND negative for the datashet to work. But i want to know the accuracy of this circuit?

The two basic configurations offered include an 8-pin device with a ground referenced tachometer input and an internal connection between the tachometer output and the op amp non-inverting input. National Semiconductor Thank you a lot. Now I understand the chip gives you a 0volts to Vcc variation for 0 Hz to fmax. Click here to register now. With daasheet version the tachometer input may be floated and the op amp becomes suitable for active filter conditioning of the tachom- eter output.

The more versatile configurations provide differential ta. Replacing a 4 pin leaded inductor with a 2 pin Started by gkmaia Yesterday at Forums New posts Search forums. This site uses cookies to help personalise content, tailor your experience and to keep you logged in if you register.

National Semiconductor Electronic Components Datasheet. As I want to know the attached circuit is correct as what you mention? Why not connect the output to a transistor base. Also, the dataeheet of the output will affect the output range or not? The LM, LM series are monolithic frequency to. Any suggestions on how to implement that? Replacement Transformer Started by ncag 47 minutes ago Replies: Also, I need to be very conservative wrt adding components.

BUT As the circuit will lose some voltage it will stop short of 12v out. Frequency to Voltage Converter. Adding 2 more ics to do the trick is not an option. Thank you for your reply. So, what can I do. So, can you give me any advice about the accuracy of the circuit? The tachom- eter uses a charge pump technique and offers frequency doubling for low ripple, full input protection in two versions LM, LM and lmj output swings to ground for a zero frequency input.

Can any professional give me a design which can achive a higher range of output, e. Sorry, can you give me any advice of which type can do such thing? For a better experience, please enable JavaScript in your browser before proceeding. Datasheets, Manuals or Parts. This version l,n well suited for single speed or frequency switching or fully buffered frequency to voltage conversion applications. 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.

I have made the circuit but seem not work. I have followed the datasheet of LMN to design a frequency to voltage circuit. Potentiometer Questions Started by norbss Yesterday at Electro Tech is an online community with overmembers who enjoy talking about and building electronic circuits, projects and gadgets. Darasheet of these configurations are available with an active.

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LM2907N National Semiconductor, LM2907N Datasheet

Tutaur Or any other methods can achieve the task? The regulator clamps the supply such that stable frequency to voltage and frequency to current operations are possible with any supply voltage and a suitable resistor. To do better requires more info — supply voltage, rest of circuit components? Electro Tech is an online community with overmembers who enjoy talking about and building electronic circuits, projects and gadgets. Click here to register now. You must log in or register to reply here. For a better experience, please enable JavaScript in your browser before proceeding.

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LM2907N National Semiconductor, LM2907N Datasheet

The tachometer 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 fre- quency input. This feature allows either a ground or supply referred load of up to 50 mA. The collector may be taken above V V The two basic configurations offered include an 8-pin device with a ground referenced tachometer input and an internal connection between the tachometer output and the op amp non-inverting input. This version is well suited for single speed or frequency switching or fully buffered frequency to voltage conversion applications.

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LM2907N DATASHEET PDF

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