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LTC1440CDD

Description
Ultralow Power Single/Dual Comparator with Reference
CategoryAnalog mixed-signal IC    Amplifier circuit   
File Size230KB,16 Pages
ManufacturerLinear ( ADI )
Websitehttp://www.analog.com/cn/index.html
Download Datasheet Parametric Compare View All

LTC1440CDD Overview

Ultralow Power Single/Dual Comparator with Reference

LTC1440CDD Parametric

Parameter NameAttribute value
Brand NameLinear Technology
Is it Rohs certified?incompatible
MakerLinear ( ADI )
Parts packaging codeDFN
package instructionHVSON, SOLCC8,.11,20
Contacts8
Manufacturer packaging codeDD
Reach Compliance Code_compli
ECCN codeEAR99
Amplifier typeCOMPARATOR
Maximum input offset voltage10000 µV
JESD-30 codeS-PDSO-N8
JESD-609 codee0
length3 mm
Humidity sensitivity level1
Negative supply voltage upper limit-0.3 V
Nominal Negative Supply Voltage (Vsup)
Number of functions1
Number of terminals8
Maximum operating temperature70 °C
Minimum operating temperature
Package body materialPLASTIC/EPOXY
encapsulated codeHVSON
Encapsulate equivalent codeSOLCC8,.11,20
Package shapeSQUARE
Package formSMALL OUTLINE, HEAT SINK/SLUG, VERY THIN PROFILE
Peak Reflow Temperature (Celsius)235
power supply+-1/+-5.5/2/11 V
Certification statusNot Qualified
Nominal response time14000 ns
Maximum seat height0.8 mm
Maximum slew rate0.004 mA
Supply voltage upper limit12 V
Nominal supply voltage (Vsup)3 V
surface mountYES
technologyCMOS
Temperature levelCOMMERCIAL
Terminal surfaceTin/Lead (Sn/Pb)
Terminal formNO LEAD
Terminal pitch0.5 mm
Terminal locationDUAL
Maximum time at peak reflow temperature20
width3 mm
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
, LTC and LT 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
144012fc
1

LTC1440CDD Related Products

LTC1440CDD LTC1440IDD LTC1440IMS8
Description Ultralow Power Single/Dual Comparator with Reference Ultralow Power Single/Dual Comparator with Reference Ultralow Power Single/Dual Comparator with Reference
Brand Name Linear Technology Linear Technology Linear Technology
Is it Rohs certified? incompatible incompatible incompatible
Maker Linear ( ADI ) Linear ( ADI ) Linear ( ADI )
Parts packaging code DFN DFN MSOP
package instruction HVSON, SOLCC8,.11,20 3 X 3 MM, 0.75 MM HEIGHT, PLASTIC, MO-229WEED-1, DFN-8 TSSOP, TSSOP8,.19
Contacts 8 8 8
Manufacturer packaging code DD DD MS8
Reach Compliance Code _compli _compli _compli
ECCN code EAR99 EAR99 EAR99
Amplifier type COMPARATOR COMPARATOR COMPARATOR
Maximum input offset voltage 10000 µV 10000 µV 10000 µV
JESD-30 code S-PDSO-N8 S-PDSO-N8 S-PDSO-G8
JESD-609 code e0 e0 e0
length 3 mm 3 mm 3 mm
Humidity sensitivity level 1 1 1
Negative supply voltage upper limit -0.3 V -0.3 V -0.3 V
Number of functions 1 1 1
Number of terminals 8 8 8
Maximum operating temperature 70 °C 85 °C 85 °C
Minimum operating temperature - -40 °C -40 °C
Package body material PLASTIC/EPOXY PLASTIC/EPOXY PLASTIC/EPOXY
encapsulated code HVSON HVSON TSSOP
Encapsulate equivalent code SOLCC8,.11,20 SOLCC8,.11,20 TSSOP8,.19
Package shape SQUARE SQUARE SQUARE
Package form SMALL OUTLINE, HEAT SINK/SLUG, VERY THIN PROFILE SMALL OUTLINE, HEAT SINK/SLUG, VERY THIN PROFILE SMALL OUTLINE, THIN PROFILE, SHRINK PITCH
Peak Reflow Temperature (Celsius) 235 235 235
power supply +-1/+-5.5/2/11 V +-1/+-5.5/2/11 V +-1/+-5.5/2/11 V
Certification status Not Qualified Not Qualified Not Qualified
Nominal response time 14000 ns 14000 ns 14000 ns
Maximum seat height 0.8 mm 0.8 mm 1.1 mm
Maximum slew rate 0.004 mA 0.0044 mA 0.0044 mA
Supply voltage upper limit 12 V 12 V 12 V
Nominal supply voltage (Vsup) 3 V 3 V 3 V
surface mount YES YES YES
technology CMOS CMOS CMOS
Temperature level COMMERCIAL INDUSTRIAL INDUSTRIAL
Terminal surface Tin/Lead (Sn/Pb) Tin/Lead (Sn/Pb) Tin/Lead (Sn/Pb)
Terminal form NO LEAD NO LEAD GULL WING
Terminal pitch 0.5 mm 0.5 mm 0.65 mm
Terminal location DUAL DUAL DUAL
Maximum time at peak reflow temperature 20 20 20
width 3 mm 3 mm 3 mm
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