LM311 APPLICATION NOTE PDF

The LM, LM, and LM devices are single high-speed voltage comparators. High-Reliability Automotive Applications; Configuration Control and Print. NOTE: Page numbers for previous revisions may differ from page numbers in .. A typical LMMIL application compares a single signal to a. Circuit Description. FIGURE 1. Simplified Schematic of the Comparator. National Semiconductor. Application Note Robert J. Widlar. October

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In your case because of the resistor in the line for pin applkcation it goes high turning of the LED. Selectors Simulators and Models. Problem with LM voltage comparator.

LM – Voltage comparator with strobe – STMicroelectronics

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Product is in volume production only to support customers ongoing production. Appliication Transformer Started by ncag Today at 7: This means that the output will swing to one or the other supply rails with a miniscule input level approx. Product is in design feasibility stage. Cant get pin 7 to turn on though. Buy Direct Add to cart. Menu Products Explore our product portfolio.

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Strablan New Member Dec 24, This site uses cookies to help personalise content, tailor your experience and to keep you logged in if you register. And that the 47k resistor by led needs to be paplication by one of approx ohms? What does precision mean for an op amp? No commitment taken to produce Proposal: Does the voltage for the reference input pin pin 2 or 3 need to be approximately half that supplied to pin 8?

Product is in design stage Target: ST Code of Conduct Blog. I have attached a diagram of what I am trying to do, hopefully you will be able to see where I am going wrong Again, many thanks.

Media Subscription Media Contacts. No commitment taken to design or produce NRND: Articles Top Articles Search resources. Hope this helps Sandyw.

Media New media New comments Search media. Strablan New Member Dec 16, Please excuse my ignorance but I really am a complete newbie on all of this. Electro Tech is an online community with overmembers who enjoy talking about and building electronic circuits, projects and gadgets. Is there something lk311 about this chip that I am not aware of that would be the problem?

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Problem with LM311 voltage comparator

Product is in volume production. Strablan New Member Dec 18, Key Features Output current: Just checking I understand your comments correctly, Does the voltage for the reference input pin pin 2 or 3 need to be approximately half that supplied to pin 8?

Product is under characterization. Did you tie a pullup resistor try 10K to VCC on pin 7? Pm311 must log in or register to reply here. Introduction to comparators, lm3111 parameters and basic applications.

Comparator output Like many comparators, the LM has an open collector output. By continuing to use this site, you are consenting to our use of cookies.

Have hooked it up as follows: They are also designed to operate over a wide range applivation supply voltages: Not Recommended for New Design. Datasheets, Manuals or Parts. Dear all Can’t get an LM comparator to work as it appears it should – probably something obvious but due to ignorance on my part but I cant see it.

General terms and conditions. Product is in volume production 0.