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High Speed Comparator

Felicia Uhl
Prodigy 50 points


Hey there,

I was wondering if it is possible to generate a square signal from a sine signal with 5V amplitude, 54 MHz and +/- 5V Offset?

Are there any suitable comparators? Or do i need a lower amplitude?

Thanks in regard.

  • 0
    TI__Mastermind 22825 points

    Hello,

    I imagine the conversion should work, if you ensure the there is enough hysteresis to avoid chatter. I have not personally implemented one before though.

    Here are a couple some fast Comparators for your review:

    http://www.ti.com/paramsearch/docs/parametricsearch.tsp?family=analog&familyId=81&uiTemplateId=NODE_STRY_PGE_T

    TLV3501 - 4.5ns Rail-to-Rail, High Speed Comparator in Microsized Packages
    TLV3502 - 4.5ns Rail-to-Rail Comparator
    LMH7220 - High Speed Comparator with LVDS Output
    LMH7322 - Dual 700 ps High Speed Comparator with RSPECL Outputs
    LMH7324 - Quad 700 ps High Speed Comparator with RSPECL Outputs
    TLV3501A-Q1 - Automotive Catalog 4.5ns Rail-to-Rail, High Speed Comparator in Microsized Packages
    TLV3502-Q1 - Automotive Catalog 4.5ns Rail-to-Rail Comparator

    Regards,

    Hooman