LM311N DATASHEET PDF

Any Op-Amp can be made to work as a voltage comparator, but the LM proves itself to be advantages by housing an Output Transistor inside its package. The transistor can also make the Load to be isolated from the system ground, so if you are looking for a Voltage comparator to drive loads of these specifications then this IC might be the right choice for you. If the voltage at the Non-Inverting Terminal pin 2 is higher than the Inverting Terminal pin 2 , the output pin 7 will also be high else the output will be low. The LM can work on a Single supply voltage or in a dual supply mode. A sample circuit is shown below in which the Inverting Terminal is set to 2.

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Gujinn This pin is connected to the ground of the system Negative voltage can also be used. Message 1 of 5. A sample circuit is shown below in which the Inverting Terminal ratasheet set to 2. Most Active Software Boards: Auto-suggest helps you quickly narrow down your search results by suggesting possible matches as you type.

Multisim and Ultiboard Could the component model be the issue? You can refer the other possible circuits from the LM datasheet given at bottom.

You can note that the Output voltage stays high when pin 2 has higher voltage than pin 7 and vice versa. Submitted by admin on 6 March Attached is a Multisim file with every comparator with a strobe feature available in Multisim and a picture of the circuit. Any Op-Amp can be made to work as a voltage comparator, but datasheeet LM proves itself to be advantages by housing an Output Transistor inside its package. The simplified schematics of the IC is shown below:.

Why is it not working in Multisim? Normally these pins are not used since the Input Offset itself lmn much better controlled. All of those comparator outputs should be a high state which means the LED will turn on connected through the 1K resistor to Vcc.

An Emitter Output Circuit is shown below. LMN Comparator with Strobe. The transistor can also make the Load to be isolated from the system ground, so if you are looking for a Voltage comparator to drive loads of these specifications then this IC might be the right choice for you. As grounding unused pins is a practice on electronics, I guess it was the way of the designer to make sure the device was not disabled for a ground wired to that pin.

Message 2 of 5. The pins 5 and 6 on the Op-amp are used to set the balance voltage if you want to manually adjust the Dtasheet voltage.

The problem is that the strobe pin is not working for the model. Message 5 of 5. I built a simple circuit using the LMN comparator. TL — Programmable Reference Voltage. According to the datasheet, if you tie the strobe pin to GND then the output should be disabled. If the voltage at the Non-Inverting Terminal pin 2 is higher than the Inverting Terminal pin 2the output pin 7 will also be high else the output will be low. Message 4 of 5. Any help is appreciated.

When not in use the pins 5 and 6 should be shorted as shown above. Most 10 Related.

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LM311N National Semiconductor, LM311N Datasheet

Gujinn This pin is connected to the ground of the system Negative voltage can also be used. Message 1 of 5. A sample circuit is shown below in which the Inverting Terminal ratasheet set to 2. Most Active Software Boards: Auto-suggest helps you quickly narrow down your search results by suggesting possible matches as you type. Multisim and Ultiboard Could the component model be the issue?

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