LP339 Datasheet, PDF (4/14 Pages) National Semiconductor (TI) – Ultra-Low Power Quad Comparator

Electrical Characteristics (Continued)
Note 9: Positive excursions of input voltage may exceed the power supply level. As long as the other voltage remains within the common-mode range, the compara-
tor will provide a proper output state. The low input voltage state must not be less than −0.3 V_DC (or 0.3 V_DC below the magnitude of the negative power supply, if
used) at T_A=25˚C.
Note 10: At output switch point, V_O=1.4V, R_S=0Ω with V⁺ from 5 V_DC; and over the full input common-mode range (0 V_DC to V⁺−1.5 V_DC).
Note 11: For input signals that exceed V⁺, only the overdriven comparator is affected. With a 5V supply, V_IN should be limited to 25V maximum, and a limiting resistor
should be used on all inputs that might exceed the positive supply.
Note 12: The output sink current is a function of the output voltage. The LP339 has a bi-modal output section which allows it to sink large currents via a Darlington
connection at output voltages greater than approximately 1.5 V_DC and sink lower currents below this point. (See typical characteristics section and applications sec-
tion).
Typical Performance Characteristics
Supply Current
Input Current
Output Sink Current
Output Sink Current
DS005226-35
Response Times for
Various Input
Overdrives —
Negative Transition
DS005226-36
DS005226-37
Response Times for
Various Input
Overdrives —
Positive Transition
DS005226-38
DS005226-39
DS005226-40
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