LP265 Datasheet, PDF (1/10 Pages) National Semiconductor (TI) – Micropower Programmable Quad Comparator

December 1994
LP265 LP365 Micropower Programmable
Quad Comparator
General Description
The LP365 consists of four independent voltage compara-
tors The comparators can be programmed four at the
same time for various supply currents input currents re-
sponse times and output current drives This is accom-
plished by connecting a single resistor between the V_CC
and I_SET pins
These comparators can be operated from split power sup-
plies or from a single power supply over a wide range of
voltages The input can sense signals at ground level even
with single supply operation The unique output NPN tran-
sistor stages are uncommitted to either power supply They
can be connected directly to various logic system supplies
so that they are highly flexible to interface with various logic
families
Application areas include battery power circuits threshold
detectors zero crossing detectors simple serial A D con-
verters VCO multivibrators voltage converters power se-
quencers and high performance V F converters and RTD
linearization
Features
Y _{Single programming resistor to tailor power consump-}
tion input current speed and output current drive
capability
Y _{Wide single supply voltage range or dual supplies (4}
V_DC to 36 V_DC or g2 0 V_DC to g18 V_DC)
Y _{Low supply current drain (10 mA) and low power}
consumption (10 mW comparator)
V_CC e 5_VDC
I_SET e 0 5 mA
Y _{Uncommitted output stage selectable output levels}
Y _{Output directly compatible with DTL TTL CMOS MOS}
or other special logic families
Y _{Input common-mode range includes ground}
Y _{Differential input voltage equal to the power supply}
voltage
Typical Connection
Connection Diagram
Dual-In-Line Package
TL H 5023–1
Programming Equation
(V^a)b(V^b)b1 3V
I_SETe
R_SET
I_SUPPLY 22cI_SET
TL H 5023 – 2
Order Number LP365M LP365AN or LP365N
See NS Package Numbers M16A or N16A
C1995 National Semiconductor Corporation TL H 5023
RRD-B30M115 Printed in U S A