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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No commitment taken to produce Proposal: Please excuse my ignorance but I really am a complete newbie on all of this. Introduction to comparators, their parameters and basic applications. This means that the output nnote swing to one or the other supply rails with a miniscule input level approx. Product is under characterization.

What does precision mean for an op amp? LM output Your problem is that the LM has an open loop gain of approx.

Problem with LM voltage comparator. 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. And that the 47k resistor by led needs to be replaced by one of approx ohms? They are also designed to operate over a wide range of supply voltages: Click here to register now.


Problem with LM voltage comparator | Electronics Forum (Circuits, Projects and Microcontrollers)

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Not Recommended for New Design. To participate applicaion need to register. Key Features Output current: Datasheets, Manuals or Parts. Thanks for your patience. Menu Products Explore our product portfolio. Cant get pin 7 to turn on though. No commitment taken to design or produce NRND: Replacement Transformer Started by ncag Today at 7: Media Subscription Media Contacts.

Product is in design feasibility stage.

Product is in design stage Target: Product is in volume production only to support customers ongoing production. Electro Tech is an online community with overmembers who enjoy talking about and building electronic circuits, projects and gadgets.

Product is in volume production Evaluation: You need to reduce the gain of the circuit using Feedback. Comparator output Like many comparators, the LM has an open collector output. You must log in or register to reply here. This site uses cookies to help personalise content, tailor your experience and to keep you logged nlte if you register. In your case because of the resistor in the line for pin 3 it goes high turning of the LED. Hope this helps Sandyw.


Problem with LM311 voltage comparator

Distributor Name Region Stock Min. Strablan New Member Dec 16, Does the voltage for the reference input pin pin 2 or 3 need to be approximately half that supplied to pin 8? 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. Strablan New Member Dec 24, Marketing proposal for customer feedback. Selectors Simulators and Models. Just checking I applicwtion 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?

Thread starter Strablan Start date Dec 16, Media New media New comments Search media. Replacing a 4 pin leaded inductor with a 2 pin Started by gkmaia Yesterday at Product is in volume production.