30µA Supply Current (LT1017)
110µA Supply Current (LT1018)
U
APPLICATIO S
■
Power Supply Monitors
■
Relay Driving
■
Oscillators
The LT®1017/LT1018 are general purpose micropower
comparators. The LT1017 is optimized for lowest operating power while the LT1018 operates at higher power and
higher speed. Both devices can operate from a single 1.1V
cell up to 40V. The output stage includes a class “B” pull-
+
up current source, eliminating the need for an external
resistive pull-up and saving power. The output stage is
also designed to allow driving loads connected to a supply
more positive than the device, as can comparators with
open-collector output stages.
Input specifications are also excellent. On-chip trimming
minimizes offset voltage, while high gain and common
mode rejection ratio keep other input referred errors low.
Common mode voltage range includes ground. Special
circuitry prevents false output states even if the input is
overdriven.
The LT1017/LT1018 are pin compatible with older dual
comparators such as 393 type devices.
, LTC and LT are registered trademarks of Linear Technology Corporation.
TYPICAL APPLICATIO
1.5V Powered Refrigerator Alarm
+
V
1.5V
665k
1%
3
+
1/2 LT1017
2
–
5
+
1/2 LT1017
6
–
YSI 44011
258.3k AT 5°C
333.1k AT 0°C
665k
1%
52.3k
1%
280k
1%
U
8
4
1017/18 TA01
1
7
OUTPUT HIGH FOR
0°C ≤ T ≤ 5°C
160
140
120
100
80
60
SUPPLY CURRENT (µA)
40
20
0
124
Supply Current
LT1018
OUTPUTS
LOW
LT1018
OUTPUTS
LT1017
OUTPUTS
LOW
TOTAL SUPPLY VOLTAGE (V)
HIGH
LT1017
OUTPUTS
HIGH
102040100
1017/18 TA02
10178fc
1
LT1017/LT1018
TOP VIEW
OUTPUT B
V
+
OUTPUT A
–IN A
–IN B
+IN B
+IN A
V
–
8
7
6
5
3
2
1
4
H PACKAGE
8-LEAD TO-5 METAL CAN
+
B
–
+
A
–
1
2
3
4
8
7
6
5
TOP VIEW
OUTPUT A
–IN A
+IN A
V
–
V
+
OUTPUT B
–IN B
+IN B
N8 PACKAGE
8-LEAD PDIP
+
B
–
+
–
A
TOP VIEW
SW PACKAGE
16-LEAD PLASTIC SO
1
2
3
4
5
6
7
8
16
15
14
13
12
11
10
9
NC
NC
OUT A
–IN A
+IN A
V
–
NC
NC
NC
NC
V
+
OUT B
–IN B
+IN B
NC
NC
A
W
O
LUTEXI TIS
S
A
WUW
U
(Note 1)
ARB
G
Supply Voltage ....................................................... 40V
Differential Input Voltage ........................................ 40V
Input Voltage ............................................ –0.3V to 40V
L1: RL1123-4.7-RENCO, INC
80% EFFICIENCY AT 2mA OUTPUT
1%
FILM
120k
FILM
2
3
1%
8
–
LT1018
+
40.01µF
V
IN
6.00V
5.25V
5.00V
4.75V
6
5
56.2k
1%
FILM
1
LED
OFF
FLASH AT 1Hz
FLASH AT 3Hz
FLASH AT 5Hz
–
1/2 LT1018
+
1% FILM
120k
1017/18 TA12
8
4
365k
1N4148
22µF
+
L1
4.7mH
7
HP5082-2810
OUTPUT
5V
+
47µF
1017/18 TA13
8
10178fc
LT1017/LT1018
U
O
PPLICATITYPICAL
SA
Regulated Step-Up Converter
5V
INPUT
0V TO 1V
LT1004
5
+
1/2 LT1018
6
–
FULL-SCALE
TRIM
100k
1.2V
100k
200k
7
*V
**DALE TE-5/Q3/400mH
Low Power* V-to-F Converter
910K
1%
2N3904
1N4148
2
0.1µF
3
1 +
= 1.2
OUT
()
1N4148
1N4148
0.1µF
–
1/2 LT1018
+
R1
R2
47k
2
–
1/2 LT1018
3
+
8
1
4
2000pF
0.001µF
POLYSTYRENE
8
4
1N4148
3M
1
400mH**
R1*
910k
R2*
120k
1N4148
+
1017/18 TA14
OUTPUT
10V
2mA
100µF
220k
1N4148
OUTPUT
0kHz TO 1kHz
9V
2.2µF
+
*I
100k
Q
1N4148
≅ 350µA
1M
10k330k
7
220pF
1/2 LT1018
6
–
0.1µF
5
+
LT1034
1.2V
1017/18 TA15
10178fc
9
LT1017/LT1018
PACKAGEDESCRIPTI
0.335 – 0.370
(8.509 – 9.398)
DIA
0.305 – 0.335
(7.747 – 8.509)
0.016 – 0.021**
(0.406 – 0.533)
SEATING
PLANE
0.010 – 0.045*
(0.254 – 1.143)
0.040
(1.016)
MAX
U
O
H Package
8-Lead TO-5 Metal Can (.200 Inch PCD)
(Reference LTC DWG # 05-08-1320)
0.050
(1.270)
MAX
*
LEAD DIAMETER IS UNCONTROLLED BETWEEN THE REFERENCE PLANE
AND 0.045" BELOW THE REFERENCE PLANE
**
FOR SOLDER DIP LEAD FINISH, LEAD DIAMETER IS
0.165 – 0.185
GAUGE
PLANE
(4.191 – 4.699)
0.500 – 0.750
(12.700 – 19.050)
REFERENCE
PLANE
(0.406 – 0.610)
0.016 – 0.024
OBSOLETE PACKAGE
45°TYP
0.027 – 0.034
(0.711 – 0.864)
0.110 – 0.160
(2.794 – 4.064)
INSULATING
STANDOFF
0.027 – 0.045
(0.686 – 1.143)
PIN 1
H8(TO-5) 0.200 PCD 1197
0.200
(5.080)
TYP
N8 Package
8-Lead PDIP (Narrow .300 Inch)
(Reference LTC DWG # 05-08-1510)
876
0.255 ± 0.015*
(6.477 ± 0.381)
12
0.300 – 0.325
(7.620 – 8.255)
0.065
(1.651)
0.009 – 0.015
(0.229 – 0.381)
+0.035
0.325
–0.015
+0.889
8.255
()
–0.381
*THESE DIMENSIONS DO NOT INCLUDE MOLD FLASH OR PROTRUSIONS.
MOLD FLASH OR PROTRUSIONS SHALL NOT EXCEED 0.010 INCH (0.254mm)
TYP
0.045 – 0.065
(1.143 – 1.651)
0.100
(2.54)
BSC
0.400*
(10.160)
MAX
3
5
4
0.130 ± 0.005
(3.302 ± 0.127)
0.125
(3.175)
MIN
0.018 ± 0.003
(0.457 ± 0.076)
0.020
(0.508)
MIN
N8 1098
10
10178fc
PACKAGEDESCRIPTI
U
O
S8 Package
8-Lead Plastic Small Outline (Narrow .150 Inch)
(Reference LTC DWG # 05-08-1610)
0.189 – 0.197*
(4.801 – 5.004)
7
8
LT1017/LT1018
5
6
0.228 – 0.244
(5.791 – 6.197)
0.010 – 0.020
(0.254 – 0.508)
0.008 – 0.010
(0.203 – 0.254)
*
DIMENSION DOES NOT INCLUDE MOLD FLASH. MOLD FLASH
SHALL NOT EXCEED 0.006" (0.152mm) PER SIDE
**
DIMENSION DOES NOT INCLUDE INTERLEAD FLASH. INTERLEAD
FLASH SHALL NOT EXCEED 0.010" (0.254mm) PER SIDE
×
°
45
0.016 – 0.050
(0.406 – 1.270)
0°– 8° TYP
SW Package
16-Lead Plastic Small Outline (Wide .300 Inch)
(Reference LTC DWG # 05-08-1620)
0.053 – 0.069
(1.346 – 1.752)
0.014 – 0.019
(0.355 – 0.483)
TYP
1
16
3
2
0.398 – 0.413*
(10.109 – 10.490)
15 1413121110 9
4
0.150 – 0.157**
(3.810 – 3.988)
0.004 – 0.010
(0.101 – 0.254)
0.050
(1.270)
BSC
SO8 1298
NOTE 1
2345
0.050
(1.270)
BSC
1
0.014 – 0.019
(0.356 – 0.482)
TYP
0.291 – 0.299**
(7.391 – 7.595)
0.010 – 0.029
(0.254 – 0.737)
0.009 – 0.013
(0.229 – 0.330)
NOTE:
1. PIN 1 IDENT, NOTCH ON TOP AND CAVITIES ON THE BOTTOM OF PACKAGES ARE THE MANUFACTURING OPTIONS.
THE PART MAY BE SUPPLIED WITH OR WITHOUT ANY OF THE OPTIONS
DIMENSION DOES NOT INCLUDE MOLD FLASH. MOLD FLASH SHALL NOT EXCEED 0.006" (0.152mm) PER SIDE
*
DIMENSION DOES NOT INCLUDE INTERLEAD FLASH. INTERLEAD FLASH SHALL NOT EXCEED 0.010" (0.254mm) PER SIDE
**
NOTE 1
Information furnished by Linear Technology Corporation is believed to be accurate and reliable.
However, no responsibility is assumed for its use. Linear Technology Corporation makes no represen-
× 45°
0.016 – 0.050
(0.406 – 1.270)
° – 8° TYP
0
0.093 – 0.104
(2.362 – 2.642)
6
tation that the interconnection of its circuits as described herein will not infringe on existing patent rights.
78
0.037 – 0.045
(0.940 – 1.143)
0.394 – 0.419
(10.007 – 10.643)
0.004 – 0.012
(0.102 – 0.305)
S16 (WIDE) 1098
10178fc
11
LT1017/LT1018
TYPICAL APPLICATION
INTERROGATE
PULSE
500µs
INPUT
300k
TRIP
ADJUST
2
3
–
1/2 LT1018
+
LT1004
1.2V
8
1
4
100k100Ω
3k
+
100µF
U
Fully Isolated Limit Comparator
5V
1k
2N3906
1µF
+
2N3906
10k
2N3904
TRW
PC-550-32
4.7k
ALL GATES 74C02
INTERROGATE PULSE
OUTPUT PULSE
NO OUTPUT PULSE FOR V
20k
200pF
> V
V
IN
TRIP
< V
IN
TRIP
OUTPUT
RELATED PARTS
PART NUMBERDESCRIPTIONCOMMENTS
LT1011/LT1011AVoltage ComparatorsImproved LT111A, 0.5mV V
LT1020Micropower Regulator and Comparator40µA I
SUPPLY
, 125mA I
OUT
LTC1040Dual Micropower Comparator1.5µW (1Sample/Second), 0.5mV V
LT1120/LT1120AMicropower Regulator with Comparator20µA I
SUPPLY
, 125mA I
OUT
and Shutdown
LT319ADual Comparators0.5mV V
LT1671Single Supply Ground Sensing Comparator450µA I
, 25mA I
OS(MAX)
, 60ns tPD, 0.8mV V
SUPPLY
OUT
LT1716Micropower, 44V, SOT-23Input Common Mode Range Extends from –5V to 44V from Negative Supply
Ground Sensing Comparator
OS(MAX)
, 25nA I
B(MAX)
, 3nA I
, 2.5V Reference Voltage
, Rail-to-Rail Input
OS(MAX)
, 2.5V Reference Voltage
, 80ns t
PD
OS
OS(MAX)
, 250ns t
PD(MAX)
12
Linear Technology Corporation
1630 McCarthy Blvd., Milpitas, CA 95035-7417
(408) 432-1900 ● FAX: (408) 434-0507
●
www.linear.com
10178fc
LT/TP 1002 1K REV C • PRINTED IN USA
LINEAR TECHNOLOGY CORPORATION 1989
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