• LT1711 hysteresis


    I use the LT1711 to compare an input signal to a fixed voltage source.

    The fixed voltage source is an opamp output.

    There are few options for hysteresis implementation (some enclosed below):

    Since the device should be symmetrical, I understand it…

  • Comparator stability - AD8561 versus LT1711


    I've been using the ad8561 in the following circuit:

    IN- connected to OUT- via few resistors (hystersis of few tens of mV) around 0V.

    IN+ gets a sine wave signal with frequencies as low as 100Hz. When crossing the 0V point, the output toggles…

  • LT1711 - output rise time versus fall time


    I am testing the LT1711 and connected the following load circuit to its outputs:

    The device is powered by +5V and -5V.

    With the above load, Ioh=10mA.

    OUT+ and OUT- toggle between 0.15V to 4.7V.

    There is no hysteresis in this circuit.

    When measuring…

  • LT1711


    I have a question LT1711.

    · About 10 VTH and VS in the data sheet
    Is VS the potential difference between + IN and - IN of the LT1711?
    (If VS is 3 V, + IN is + 1.5 V and - IN is -1.5 V?)

    Is VTH the voltage actually applied to the input terminal of the…

  • LT1713 input capacitance


    Spice model for the LT1713 suggests input capacitance is 5pF (C5 3 6 5p).

    Can anyone confirm or have another number?

    It seems a big number for this fast comparator.

    On the other hand, the LT1711 has a 0.5pF input capacitance (same Spice models file…

  • RE: ADCMP563

    Hi lshimonovich226,

    I would recommend the LT1711. It has a complementary output like the ADCMP563, it has a typical rise/fall time of 2nS, and lastly it has rail-to-rail input and output.