LM311N DATASHEET PDF
LMN Datasheet, LMN National Semiconductor Voltage Comparator Datasheet, buy LMN. The LM, LM, LM are voltage comparators that have low input currents. They are also designed to operate over a wide range of. Part, LMN. Category. Description, Voltage Comparators. Company, ST Microelectronics, Inc. Datasheet, Download LMN datasheet. Cross ref.
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Auto-suggest helps you quickly narrow down your search results by suggesting possible matches as you type. You can note that the Output voltage datsaheet high when pin 2 has higher voltage than pin 7 and vice versa.
Message 3 of 5. I expect the output to oscillate between 0 and 1 at the “zero crossing” of the signal. Submitted by admin on 6 March Could the component model be the issue? Most Active Software Boards: Datasheeet 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.
Multisim and Ultiboard
LMN Comparator with Strobe. I tried adding in a transistor with a 1k resistor to ground and a TTL signal at the base as per the datasheet and datasheet doesn’t disable the output either. Message 4 of 5. The problem is that tying the strobe pin to ground should make the output stop changing, and it isn’t.
This pin is connected to the ground of the system Negative voltage can also be used.
LMN STMicroelectronics | Ciiva
The pins 5 and 6 on the Op-amp are used to set the balance voltage if you want to manually adjust the DC-Offset voltage. Message 1 of 5. Dayasheet LM can work on a Single supply voltage or in a dual supply mode. Normally these pins are not used since the Input Offset itself is 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 Llm311n.
I built a simple circuit using the LMN comparator. The problem is that the strobe pin is not working for the model. I just built the circuit in real life and it datasheeet exactly as I thought, putting GND on the strobe pin makes the output a constant state at Vcci.
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. Message 2 of 5. The simplified schematics of the IC is shown below: The output is correct as seen on the scope. 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. Dataasheet transistor can also make the Load to be isolated from the system ground, so if you are looking for a Voltage datasehet to drive loads of these specifications then this IC might be the right lm31n1 for you.
According to the datasheet, if you tie the strobe pin to GND then the output should be disabled. Any help is appreciated. TL — Programmable Reference Voltage.
Why is it not working in Multisim? Message 5 of 5.
The simplified schematics of the IC is shown below:. Attached is a Multisim file with every comparator with a strobe feature datasheeh in Multisim and a picture of the circuit.
When not in use the pins 5 and 6 should be shorted as shown above. A sample circuit is shown below in which the Inverting Terminal is set to 2. You can refer the other possible circuits from the LM datasheet given at bottom.
An Emitter Output Circuit is shown below.