LT1017/LT1018
Micropower
Dual Comparator
FEATURES DESCRIPTION
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Maximum Offset Voltage: 1mV
The LT 1017/LT1018 are general purpose micropower
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Maximum Bias Current: 15nA
comparators. The LT1017 is optimized for lowest operat-
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Typical Output Drive: 70mA
ing power while the LT1018 operates at higher power and
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Operates from 1.1V to 40V higher speed. Both devices can operate from a single 1.1V
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Internal Pull-Up Current cell up to 40V. The output stage includes a class B pull-
+
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Output Can Drive Loads Above V up current source, eliminating the need for an external
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resistive pull-up and saving power. The output stage is
30A Supply Current (LT1017)
also designed to allow driving loads connected to a supply
110A Supply Current (LT1018)
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more positive than the device, as can comparators with
Available in 8-Lead PDIP, 8-Lead Plastic S0, and
open-collector output stages.
16-Lead Plastic SO Packages
Input speci cations are also excellent. On-chip trimming
minimizes offset voltage, while high gain and common
APPLICATIONS
mode rejection ratio keep other input referred errors low.
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Power Supply Monitors
Common mode voltage range includes ground. Special
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Relay Driving
circuitry prevents false output states even if the input is
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Oscillators
overdriven.
L, LT, LTC and LTM are registered trademarks of Linear Technology Corporation.
The LT1017/LT1018 are pin compatible with older dual
All other trademarks are the property of their respective owners.
comparators such as 393 type devices.
TYPICAL APPLICATION
1.5V Powered Refrigerator Alarm Supply Current
160
+
V
LT1018
1.5V
OUTPUTS
140
665k
LOW
1%
120
3
8
+
100
1
665k 52.3k OUTPUT HIGH FOR
1/2 LT1017 LT1018
1% 1% 0C T 5C
80
2 OUTPUTS
HIGH
LT1017
60
OUTPUTS
LOW
40
5
LT1017
+
20
OUTPUTS
7
1/2 LT1017 HIGH
YSI 44011
6 0
258.3k AT 5C
12 4 10 20 40 100
4
333.1k AT 0C
TOTAL SUPPLY VOLTAGE (V)
280k
1%
1017/18 TA02
1017/18 TA01
10178ff
1
SUPPLY CURRENT (A)LT1017/LT1018
(Note 1)
ABSOLUTE MAXIMUM RATINGS
Supply Voltage ......................................................... 40V Operating Temperature Range
Differential Input Voltage.......................................... 40V LT1017M/LT1018M ......................... 55C to 125C
Input Voltage ............................................. 0.3V to 40V LT1017C/LT1018C ................................. 0C to 70C
Short-Circuit Duration .................................... Inde nite LT1017I/LT1018I ............................... 40C to 85C
Storage Temperature Range .................. 65C to 150C Lead Temperature (Soldering, 10 sec) ................. 300C
PACKAGE/ORDER INFORMATION
TOP VIEW TOP VIEW
+
OUTPUT A 1 8 V
+IN A 1 8 IN A
IN A 2 7 OUTPUT B
V 2 A 7 OUT A
A
+
+IN A 3 IN B
+IN B V 6
3 6
B
B
+
V 4 5 +IN B
IN B 4 5 OUT B
S8 PACKAGE N8 PACKAGE
8-LEAD PDIP
8-LEAD PLASTIC SO
T = 150C, = 190C/W T = 150C, = 140C/W
JMAX JA
JMAX JA
ORDER PART NUMBER S8 PART MARKING ORDER PART NUMBER PART MARKING
LT1017CS8 1017 LT1017CN8
LT1017IS8 1017I LT1017IN8
LT1018CS8 1018 LT1018CN8
LT1018IS8 1018I
TOP VIEW
TOP VIEW
+
V
NC 1 16 NC
8
NC 2 15 NC
7 OUTPUT B
OUTPUT A 1
+
3
OUT A 14 V
A B
IN A 2 + 6 IN B
+
IN A 4 13 OUT B
A
+IN A 5 12 IN B
+IN A 3 5 +IN B
B
+
4
V 6 11 +IN B
V
NC 7 10 NC
H PACKAGE
8-LEAD TO-5 METAL CAN
NC 8 9 NC
T = 150C, = 150C/W, = 45C/W
JMAX JA JC
SW PACKAGE
OBSOLETE PACKAGE
16-LEAD PLASTIC SO
Consider the 8-Lead Plastic Dip Package For Alternate Source
T = 150C, = 130C/W
JMAX JA
ORDER PART NUMBER PART MARKING ORDER PART NUMBER PART MARKING
LT1017MH LT1017CSW
LT1017CH
LT1018CSW
LT1018MH
LT1018CH
Order Options Tape and Reel: Add #TR
Lead Free: Add #PBF Lead Free Tape and Reel: Add #TRPBF
Lead Free Part Marking: