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

Author: Sagar Mom
Country: Dominica
Language: English (Spanish)
Genre: Politics
Published (Last): 17 July 2007
Pages: 261
PDF File Size: 16.88 Mb
ePub File Size: 16.55 Mb
ISBN: 847-8-41997-954-6
Downloads: 68235
Price: Free* [*Free Regsitration Required]
Uploader: Mezijas

Have a look at any textbook on negative feedback or search the web.

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. 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 in volume production 0. Menu Products Explore our product portfolio. Articles Top Articles Search resources. Electro Tech is an online community with overmembers who enjoy talking about and building electronic circuits, projects and gadgets.

Introduction to comparators, their parameters and basic applications. Please excuse my ignorance but I really am a complete newbie on all of this. Please contact our sales support for information on specific devices. Product is under characterization.


LM output Your problem is that the LM has an open loop gain of approx. Product is in volume production only to support customers ongoing production. Distributor Name Region Stock Min.

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

Support Center Complete list and gateway to support services and resource pools. Forums New posts Search forums. What does precision mean for an op amp? No commitment taken to produce Proposal: Marketing proposal for customer feedback.

This site uses cookies to help personalise content, tailor your experience and to keep you logged in if you register. Selectors Simulators and Models.

Computers and Peripherals Data Center. Have hooked it up as follows: Strablan New Member Dec lm3311, Hope this helps Sandyw. Replacing a 4 pin leaded inductor with a 2 pin Started by gkmaia Yesterday at Replacement Transformer Started by ncag Today at 7: Not Recommended for New Design.

Problem with LM311 voltage comparator

By continuing to use this site, you are consenting to our use of cookies. Here are some other links for more info: Applicatjon Analog cards High-performance operational amplifiers and comparators, the best choice for longevity, robustness and performance.

Does the voltage for the reference input pin pin 2 or 3 need to be approximately half that supplied to pin 8? Strablan New Member Dec 16, They are also designed to operate over a wide range noge supply voltages: ST Code of Conduct Blog.


Did you tie a pullup resistor try 10K to VCC on pin 7? Thread starter Strablan Start date Dec 16, Product is in volume production Evaluation: Cant get pin 7 to turn on though. Welcome to our site! Product is in design feasibility stage.

Click here to register now. Product is in design stage Target: This means that the output will swing to one or the other supply rails with a miniscule input level approx. Support Center Video Center.

Strablan New Member Dec 19, IoT for Smart Things. 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. No availability reported, please contact our Sales office.

Pioneer Elite vsxtx water damage no power Alplication by Watin 53 minutes ago Replies: To participate you need to register. Comparator output Like many comparators, the LM has an open collector output. Who We Are Management.

Strablan New Member Dec 24, Note that many of the circuits in the app. You need to reduce the gain of the circuit using Feedback.