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LTC1442IS8#PBF

Description
Comparator Dual ±5.5V/11V 8-Pin SOIC N Tube
CategoryThe comparator   
File Size230KB,16 Pages
ManufacturerADI
Websitehttps://www.analog.com
Download Datasheet Parametric View All

LTC1442IS8#PBF Overview

Comparator Dual ±5.5V/11V 8-Pin SOIC N Tube

LTC1442IS8#PBF Parametric

Parameter NameAttribute value
EU restricts the use of certain hazardous substancesCompliant
ECCN (US)EAR99
Part StatusActive
HTS8542.39.00.01
Manufacturer TypeUltra Low Power Comparator
Number of Channels per Chip2
Rail to RailNo
Typical CMRR (dB)80
Typical PSRR (dB)80
Maximum Propagation Delay Time (ns)15000(Typ)
Output TypeCMOS/TTL
Maximum Operating Supply Voltage (V)±5.5|11
Maximum Input Offset Voltage (mV)10@5V@-40C to 85C
Minimum Single Supply Voltage (V)2
Typical Single Supply Voltage (V)3|5|9
Maximum Single Supply Voltage (V)11
Minimum Dual Supply Voltage (V)±1
Typical Dual Supply Voltage (V)±3|±5
Maximum Dual Supply Voltage (V)±5.5
Maximum Supply Current (mA)5.7@5V@-40C to 85C
Typical Output Current (mA)0.02@5V
Maximum Power Dissipation (mW)500
Power Supply TypeSingle|Dual
Minimum Operating Temperature (°C)-40
Maximum Operating Temperature (°C)85
PackagingTube
Standard Package NameSOP
Pin Count8
Supplier PackageSOIC N
MountingSurface Mount
Package Height1.5(Max)
Package Length5(Max)
Package Width3.99(Max)
PCB changed8
Lead ShapeGull-wing
LTC1440/LTC1441/LTC1442
Ultralow Power Single/Dual
Comparator with Reference
FEATURES
DESCRIPTIO
Ultralow Quiescent Current: 2.1
µ
A Typ (LTC1440)
Reference Output Drives 0.01
µ
F Capacitor
Adjustable Hysteresis (LTC1440/LTC1442)
Wide Supply Range:
Single: 2V to 11V
Dual:
±1V
to
±5.5V
Input Voltage Range Includes the Negative Supply
TTL/CMOS Compatible Outputs
12µs Propagation Delay with 10mV Overdrive
No Crowbar Current
40mA Continuous Source Current
Pin Compatible Upgrades for MAX921/922/923
3mm x 3mm x 0.75mm DFN Package (LTC1440)
The LTC
®
1440/LTC1441/LTC1442 are ultralow power
single and dual comparators with built-in references. The
comparators feature less than 3.7µA supply current over
temperature (LTC1440), a 1.182V
±1%
reference, pro-
grammable hysteresis (LTC1440/LTC1442) and TTL/CMOS
outputs that sink and source current. The reference output
can drive a bypass capacitor of up to 0.01µF without
oscillation.
The comparators operate from a single 2V to 11V supply
or a dual
±1V
to
±5.5V
supply (LTC1440). Comparator
hysteresis is easily programmed by using two resistors
and the HYST pin (LTC1440/LTC1442). Each comparator’s
input operates from the negative supply to within 1.3V of
the positive supply. The comparator output stage can
continuously source up to 40mA. By eliminating the
cross-conducting current that normally happens when the
comparator changes logic states, the power supply glitches
are eliminated.
The LTC1440 is available in 8-pin PDIP, SO, MSOP and
DFN packages. The LTC1441/LTC1442 are available in
8-pin PDIP and SO packages.
APPLICATIO S
Battery-Powered System Monitoring
Threshold Detectors
Window Comparators
Oscillator Circuits
, LT, LTC and LTM are registered trademarks of Linear Technology Corporation.
All other trademarks are the property of their respective owners.
TYPICAL APPLICATIO
3.3V
Micropower 2.9V V
CC
Threshold Detector
LTC1440 Supply Current vs Temperature
5.0
V
+
= 5V
V
= GND = 0V
SUPPLY CURRENT (µA)
R1
1.65M
1%
R2
1.13M
1%
7
V
+
3 IN
+
4.5
4.0
3.5
3.0
2.5
2.0
+
8
OUT
4 IN
5 HYST
LTC1440
6 REF
1.5
–40 –20
V
2
GND
1
1440 TA01
U
40
20
60
0
TEMPERATURE (°C)
80
100
1440/1/2 TA02
U
U
144012fd
1
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