LP265 Datasheet, PDF (7/10 Pages) National Semiconductor (TI) – Micropower Programmable Quad Comparator

Typical Applications (Continued)
Slow Op Amp (Inverter)
Slow Op Amp (Unity-Gain Follower)
TL H 5023 – 10
R_B e V^a 20 mA
Unlike most comparators the LP365 can be used as an op amp if suitable
R-C damping networks are used
Chopping Outputs
TL H 5023 – 11
R_B e V^a 20 mA
The LP365 can also be used as a high-input-impedance follower-amplifier
with the damping components shown
Low Battery Detector
TL H 5023 – 13
TL H 5023 – 12
Chopping the outputs by modulating the I_SET current allows data to be trans-
mitted via opto-couplers transformers etc
I_S 6V e 45 mA
I_S 3 8V e 1 mA
f e 3 kHz
Comparator A detects when the supply voltage drops to 4V and enables
comparator B to drive a piezoelectric alarm
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