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LTC1440IMS8

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

LTC1440IMS8 Overview

Ultralow Power Single/Dual Comparator with Reference

LTC1440IMS8 Parametric

Parameter NameAttribute value
Brand NameLinear Technology
Is it Rohs certified?incompatible
MakerLinear ( ADI )
Parts packaging codeMSOP
package instructionTSSOP, TSSOP8,.19
Contacts8
Manufacturer packaging codeMS8
Reach Compliance Code_compli
ECCN codeEAR99
Amplifier typeCOMPARATOR
Maximum input offset voltage10000 µV
JESD-30 codeS-PDSO-G8
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 temperature85 °C
Minimum operating temperature-40 °C
Package body materialPLASTIC/EPOXY
encapsulated codeTSSOP
Encapsulate equivalent codeTSSOP8,.19
Package shapeSQUARE
Package formSMALL OUTLINE, THIN PROFILE, SHRINK PITCH
Peak Reflow Temperature (Celsius)235
power supply+-1/+-5.5/2/11 V
Certification statusNot Qualified
Nominal response time14000 ns
Maximum seat height1.1 mm
Maximum slew rate0.0044 mA
Supply voltage upper limit12 V
Nominal supply voltage (Vsup)3 V
surface mountYES
technologyCMOS
Temperature levelINDUSTRIAL
Terminal surfaceTin/Lead (Sn/Pb)
Terminal formGULL WING
Terminal pitch0.65 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

LTC1440IMS8 Related Products

LTC1440IMS8 LTC1440CDD LTC1440IDD
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 MSOP DFN DFN
package instruction TSSOP, TSSOP8,.19 HVSON, SOLCC8,.11,20 3 X 3 MM, 0.75 MM HEIGHT, PLASTIC, MO-229WEED-1, DFN-8
Contacts 8 8 8
Manufacturer packaging code MS8 DD DD
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-G8 S-PDSO-N8 S-PDSO-N8
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 85 °C 70 °C 85 °C
Minimum operating temperature -40 °C - -40 °C
Package body material PLASTIC/EPOXY PLASTIC/EPOXY PLASTIC/EPOXY
encapsulated code TSSOP HVSON HVSON
Encapsulate equivalent code TSSOP8,.19 SOLCC8,.11,20 SOLCC8,.11,20
Package shape SQUARE SQUARE SQUARE
Package form SMALL OUTLINE, THIN PROFILE, SHRINK PITCH SMALL OUTLINE, HEAT SINK/SLUG, VERY THIN PROFILE SMALL OUTLINE, HEAT SINK/SLUG, VERY THIN PROFILE
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 1.1 mm 0.8 mm 0.8 mm
Maximum slew rate 0.0044 mA 0.004 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 INDUSTRIAL COMMERCIAL INDUSTRIAL
Terminal surface Tin/Lead (Sn/Pb) Tin/Lead (Sn/Pb) Tin/Lead (Sn/Pb)
Terminal form GULL WING NO LEAD NO LEAD
Terminal pitch 0.65 mm 0.5 mm 0.5 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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