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  • LM311: Equation for MFB Bandpass Filter in Active Filter Design Techniques

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    Part Number: LM311 Tool/software: Hello, This document: Chapter 16 Active Filter Design Techniques Literature Number SLOA088 Excerpted from Op Amps for Everyone Literature Number: SLOD006A On page 16-31 the equation for a MFB Bandpass filter is given. It…
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  • LM311: Not matched low to high and high to low response time, high to low is 10 times longer than specification

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    Part Number: LM311 Other Parts Discussed in Thread: TLV1871 Tool/software: I'm using LM311 to make a zero crossing detector. The low to high response time is 112ns, however the high to low response time is 1.35us, much longer than excpected. I replaced…
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  • RE: LM311: Enquiry for part LM311H/NOPB failed DIP test (270112)

    Hi Ron, The 3pcs are with Mouser and is in the process of filling the Return request in TI Portal. Still waiting for customer's reply on your questions and end customer info. Thanks Regards
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  • LM311: LM311 New quad comparator device suggestion

    Resolved
    Part Number: LM311 Other Parts Discussed in Thread: TLV1872 Tool/software: Hi Chi, Just wanted to check if there's any news about the new dual variant of the LM311 we talked about some time ago in the below thread? https://e2e.ti.com/support/amplifiers…
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  • RE: LM311: Enquiry for part LM311H/NOPB failed DIP test (270112)

    Hi Paul, Thanks and will inform customer accordingly. Regards
    • Answered

  • LM311: Output voltage when VCC is OFF

    Resolved
    Part Number: LM311 Hello team, On the datasheet, Abs max value of EMIT OUT and COL OUT is not related to VCC. Is this mean that, even during VCC=0V, those pins can withstand up to 30V and 40V respectively? Best Regards, Kei Kuwahara
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  • LM311: New quad comparator device suggestion

    Resolved
    Part Number: LM311 Hi I will like to suggest a new quad comparator device (sorry if this isn’t the right place for this). The LM311 comparator has been around for many years, but still seems very popular because of some unique features, like ±15V…
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  • LM311: LM311 with hysteresis not working in LTspice simulations

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    Part Number: LM311 Hi Experts, Our customer is trying to simulate the following LM311 circuit with hysteresis in LTspice: The circuit is supposed to be a comparator with hysteresis centered around 2.5V, with high threshold 3.1V and low threshold 1.9V. …
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  • LM311: problem with recognize where pin number 1 is

    TI Thinks Resolved
    Part Number: LM311 Hello, We bought from you LM311 and how can I recognize where pin number 1 is? In datasheet there is a dot or notch in the housing, but on these on picture there is not. Best regards, Marcin Cichomski
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  • LM311: a hysteresis in LM311

    Resolved
    Part Number: LM311 Other Parts Discussed in Thread: TINA-TI Dear sir, please answer I need to set a hysteresis in LM311. Please, report, should I connect the feedback resistor between pins “COL” and “+IN” or between pins “COL” and “-IN” ?…
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