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TL331 comparator threshold definition

Antony Lin
Genius 13480 points

Hi,

Customer will provide a fixed voltage (2.5V) at IN- pin.  Since the Input offset voltage (Vio) is max at 9mV, can I say

  1. If IN+ < 2.5V-9mV=2.491V, then the output will be low?  (Considering IN- and IN+ are both within the common mode range.)
  2. If IN+>2.5V-9mV=2.491V. then the output will be high? (Considering IN- and IN+ are both within the common mode range.)

Thanks!

Antony

  • 0
    TI__Guru**** 164456 points
    Antony,

    If IN+ < 2.5V-9mV=2.491V, then the output will be low (Considering IN- or IN+ are within the common mode range.)
    If IN+>2.5V+9mV=2.509V. then the output will be high (Considering IN- or IN+ are within the common mode range.)

    9mV includes both polarities.