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LTC1042CN8

Description
Window Comparator
CategoryAnalog mixed-signal IC    Amplifier circuit   
File Size111KB,8 Pages
ManufacturerLinear ( ADI )
Websitehttp://www.analog.com/cn/index.html
Download Datasheet Parametric Compare View All

LTC1042CN8 Overview

Window Comparator

LTC1042CN8 Parametric

Parameter NameAttribute value
Brand NameLinear Technology
Is it Rohs certified?incompatible
MakerLinear ( ADI )
Parts packaging codeDIP
package instructionDIP, DIP8,.3
Contacts8
Manufacturer packaging codeN
Reach Compliance Codenot_compliant
ECCN codeEAR99
Samacsys DescriptionAnalog Comparators LTC1042 - Window Comparator
Amplifier typeCOMPARATOR
JESD-30 codeR-PDIP-T8
JESD-609 codee0
Humidity sensitivity level1
Number of functions1
Number of terminals8
Maximum operating temperature85 °C
Minimum operating temperature-40 °C
Package body materialPLASTIC/EPOXY
encapsulated codeDIP
Encapsulate equivalent codeDIP8,.3
Package shapeRECTANGULAR
Package formIN-LINE
Peak Reflow Temperature (Celsius)NOT SPECIFIED
Certification statusNot Qualified
Nominal response time80000 ns
Maximum seat height3.937 mm
Supply voltage upper limit18 V
Nominal supply voltage (Vsup)5 V
surface mountNO
technologyCMOS
Temperature levelINDUSTRIAL
Terminal surfaceTin/Lead (Sn/Pb)
Terminal formTHROUGH-HOLE
Terminal pitch2.54 mm
Terminal locationDUAL
Maximum time at peak reflow temperatureNOT SPECIFIED
width7.62 mm
LTC1042
Window Comparator
FEATURES
DESCRIPTIO
Micropower 1.5µW (1 Sample/Second)
Wide Supply Range — 2.8V to 16V
High Accuracy
Center Error
±1mV
Max
Width Error
±0.15%
Max
Wide Input Voltage Range
V
+
to Ground
TTL Outputs with 5V Supply
Two Independent Ground-Referred Control Inputs
Small Size 8-Pin MiniDIP
The LTC
®
1042 is a monolithic CMOS window comparator
manufactured using Linear Technology’s enhanced
LTCMOS
silicon gate process. Two high impedance
voltage inputs, CENTER and WIDTH/2, define the middle
and width of the comparison window. Whenever the input
voltage, V
IN
, is inside the window the WITHIN WINDOW
output is high. The ABOVE WINDOW output is high
whenever V
IN
is above the window. By interchanging V
IN
and CENTER, the ABOVE WINDOW output becomes
BELOW WINDOW and is high if V
IN
is below the window.
Sampling techniques provide high impedance voltage
inputs that can common mode to both supply rails
(V
+
and GND). An important feature of the inputs is their
non-interaction. Also the device is effectively “chopper
stabilized,” giving it extremely high accuracy over
all conditions of temperature, power supply and input
voltage range.
Another benefit of the sampling techniques used to design
the LTC1042 is the extremely low power consumption.
When the device is strobed, it internally turns on the power
to the comparators, samples the inputs, stores the outputs
in CMOS latches and then turns off power to the compara-
tors. This all happens in about 80µs. Average power can be
made small, almost arbitrarily, by lowering the strobe rate.
The device can be self-strobed using an external RC
network or strobed externally by driving the OSC pin with
a CMOS gate.
APPLICATIO S
Fault Detectors
Go/No-Go Testing
Microprocessor Power Supply Monitor
, LTC and LT are registered trademarks of Linear Technology Corporation.
LTCMOS is a trademark of Linear Technology Corp.
TYPICAL APPLICATIO
V
+
Battery-Powered Remote Freezer Alarm
10000
150k
150k
1
2
3
3V TO 16V
R1*
7.5k
T
4
LTC1042
8
7
6
5
0.05µF
R2*
576Ω
Total Supply Current
vs Sampling Frequency
V
+
= 6V
TOTAL SUPPLY CURRENT, I
T
(µA)
I
T
“HI” = TEMPERATURE
BETWEEN
10M
±5%
26°F AND 31°F
±1°F
“HI” = TEMPERATURE
ABOVE 31°F
±1°F
1000
I
T
100
10
LTC1042 SUPPLY
CURRENT
1
0.1
0.01
FOR THIS APPLICATION
f
S
1HZ
0.1
1
10
100
1000
SAMPLING FREQUENCY, f
S
(Hz)
10000
T = YELLOW SPRINGS INSTRUMENT CO., INC. P/N 44007
ALL RESISTORS
±1%
UNLESS OTHERWISE SPECIFIED
*OTHER TEMPERATURE BANDS MAY BE SELECTED BY CHOOSING APPROPRIATE VALUES FOR R1 AND R2
LTC1042 • A01
U
LTC1042 • TA02
U
U
1042fa
1

LTC1042CN8 Related Products

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Description Window Comparator Window Comparator Window Comparator Window Comparator IC CMOS COMPARATOR WINDOW 8DIP
Brand Name Linear Technology - - Linear Technology Linear Technology
Is it Rohs certified? incompatible - - incompatible conform to
Maker Linear ( ADI ) - - Linear ( ADI ) Linear ( ADI )
Parts packaging code DIP - - DIP DIP
package instruction DIP, DIP8,.3 - - DIP, DIP8,.3 DIP, DIP8,.3
Contacts 8 - - 8 8
Manufacturer packaging code N - - J N
Reach Compliance Code not_compliant - - compliant compliant
ECCN code EAR99 - - EAR99 EAR99
Amplifier type COMPARATOR - - COMPARATOR COMPARATOR
JESD-30 code R-PDIP-T8 - - R-GDIP-T8 R-PDIP-T8
JESD-609 code e0 - - e0 e3
Humidity sensitivity level 1 - - 1 1
Number of functions 1 - - 1 1
Number of terminals 8 - - 8 8
Maximum operating temperature 85 °C - - 125 °C 85 °C
Minimum operating temperature -40 °C - - -55 °C -40 °C
Package body material PLASTIC/EPOXY - - CERAMIC, GLASS-SEALED PLASTIC/EPOXY
encapsulated code DIP - - DIP DIP
Encapsulate equivalent code DIP8,.3 - - DIP8,.3 DIP8,.3
Package shape RECTANGULAR - - RECTANGULAR RECTANGULAR
Package form IN-LINE - - IN-LINE IN-LINE
Peak Reflow Temperature (Celsius) NOT SPECIFIED - - NOT SPECIFIED NOT SPECIFIED
Certification status Not Qualified - - Not Qualified Not Qualified
Nominal response time 80000 ns - - 80000 ns 80000 ns
Maximum seat height 3.937 mm - - 5.08 mm 3.937 mm
Supply voltage upper limit 18 V - - 18 V 18 V
Nominal supply voltage (Vsup) 5 V - - 5 V 5 V
surface mount NO - - NO NO
technology CMOS - - CMOS CMOS
Temperature level INDUSTRIAL - - MILITARY INDUSTRIAL
Terminal surface Tin/Lead (Sn/Pb) - - Tin/Lead (Sn/Pb) Matte Tin (Sn)
Terminal form THROUGH-HOLE - - THROUGH-HOLE THROUGH-HOLE
Terminal pitch 2.54 mm - - 2.54 mm 2.54 mm
Terminal location DUAL - - DUAL DUAL
Maximum time at peak reflow temperature NOT SPECIFIED - - NOT SPECIFIED NOT SPECIFIED
width 7.62 mm - - 7.62 mm 7.62 mm
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