LT119A/LT319A
LM119/LM319
1
119a319afc
TYPICAL APPLICATION
FEATURES DESCRIPTION
Dual Comparator
The LT
®
119A is an improved version of the LM119 dual
comparator. It features lower input offset voltage and
offset current, higher voltage gain, guaranteed common
mode rejection and input protection diodes.
The LT119A is capable of operation over a supply range
from 5V to ±15V and can drive 25mA loads from each
open collector output. A separate ground pin allows the
LT119A to isolate system grounds.
Linear Technology Corporation’s advanced processing,
design techniques and reliability make the LT119A/LT319A
an ideal choice over previous devices in most comparator
applications.
Window Detector* Response Time For Various Input Overdrives
APPLICATIONS
n Guaranteed Maximum 0.5mV Input Offset Voltage
n Input Protection Diodes
n Operates From Single 5V Supply
n 25mA Drive Capability
n 80ns Response Time
n Window Detectors
n High Speed One Shot
n Relay/Lamp Drivers
n Voltage Controlled Oscillators
L, LT , LT C , LT M , Linear Technology and the Linear logo are registered trademarks of Linear
Technology Corporation. All other trademarks are the property of their respective owners.
–
+
–
+
5V
500Ω
TTL OUTPUT
LT119/319 TA1
1
10
3
4
8
9
5
7
6
2
1/2 LT319A
1/2 LT319A
VUT
VOUT = 5V FOR
VLT ≤ VIN≤ VUT
VOUT = 0V FOR
VIN ≤ VLT OR VIN≤ VUT
VIN
VLT
*ALLOWED WINDOW FOR SINGLE 5V SUPPLY IS 1.2V TO 3.8V
TIME (ns)
0
INPUT
VOLTAGE (mV)
OUTPUT
VOLTAGE (V)
50
0
1
2
4
50 150 200
LT119/319 TA2
100
5
6
3
0 100 250 300 350
20mV
2mV
5mV
VS = ±15V
RL = 500Ω
V++ = 5V
TA = 25°C
LT119A/LT319A
LM119/LM319
2
119a319afc
ABSOLUTE MAXIMUM RATINGS
Supply Voltage ..........................................................36V
Output to Negative Supply Voltage ...........................36V
Ground to Negative Supply Voltage ..........................25V
Ground to Positive Supply Voltage ............................18V
Differential Input Voltage (Note 6) ............................±5V
Differential Input Current (Note 6) .........................±5mA
Input Voltage (Note 2)
(Note 1)
ORDER INFORMATION
LEAD FREE FINISH PART MARKING PACKAGE DESCRIPTION SPECIFIED TEMPERATURE RANGE
LT319AN#PBF LT319AN 14-Lead Plastic DIP 0°C to 70°C
LM319N#PBF LM319N 14-Lead Plastic DIP 0°C to 70°C
OBSOLETE PACKAGES
LT119AH#PBF LT119AH 10-Lead TO-5 Metal Can –55°C to 125°C
LM119H#PBF LM119H 10-Lead TO-5 Metal Can –55°C to 125°C
LT319AH#PBF LT319AH 10-Lead TO-5 Metal Can 0°C to 70°C
LM319H#PBF LM319H 10-Lead TO-5 Metal Can 0°C to 70°C
LT119AJ#PBF LT119AJ 14-Lead Ceramic DIP –55°C to 125°C
LM119J#PBF LM119J 14-Lead Ceramic DIP –55°C to 125°C
LT319AJ#PBF LT319AJ 14-Lead Ceramic DIP 0°C to 70°C
LM319J#PBF LM319J 14-Lead Ceramic DIP 0°C to 70°C
Consult LT C Marketing for parts specified with wider operating temperature ranges.
Consult LT C Marketing for information on nonstandard lead based finish parts.
For more information on lead free part markings, go to: http://www.linear.com/leadfree/
For more information on tape and reel specifications, go to: http://www.linear.com/tapeandreel/
1
2
3
4
5
6
7
TOP VIEW
N PACKAGE
14-LEAD PLASTIC DIP
14
13
12
11
10
9
8
NC
NC
GND
+INPUT 1
–INPUT 1
V–
OUTPUT 2
NC
NC
OUTPUT 1
V+
–INPUT 2
+INPUT 2
GND 2
TJMAX = 150°C, θJA = 100°C/W
TOP VIEW
–INPUT 2
V+
V–
10 9
8
6
4
2
1
5
H PACKAGE
10-LEAD TO-5 METAL CAN
7
3GND 2
OUTPUT 2
+INPUT 1
–INPUT 1
GND
OUTPUT 1
+INPUT 2
TJMAX = 150°C, θJA = 150°C/W, θJC = 45°C/W
OBSOLETE PACKAGE
1
2
3
4
5
6
7
TOP VIEW
J PACKAGE
14-LEAD CERAMIC DIP
14
13
12
11
10
9
8
NC
NC
GND
+INPUT 1
–INPUT 1
V–
OUTPUT 2
NC
NC
OUTPUT 1
V+
–INPUT 2
+INPUT 2
GND 2
TJMAX = 150°C, θJA = 100°C/W
OBSOLETE PACKAGE
PIN CONFIGURATION
Output Short-Circuit Duration ................................... 10s
Operating Temperature Range
LT119A, LM119 OBSOLETE .......... –55°C to 125°C
LT319A, LM319 ........................................ 0°C to 70°C
Storage Temperature Range .................. –65°C to 150°C
Lead Temperature (Soldering, 10 sec) ................... 300°C
LT119A/LT319A
LM119/LM319
3
119a319afc
The l denotes the specifications which apply over the full operating
temperature range, otherwise specifications are at TA = 25°C. (Note 3)
SYMBOL PARAMETER CONDITIONS
LT119A LM119
SYMBOLMIN TYP MAX MIN TYP MAX
VOS Input Offset Voltage VS = ±15V, VCM = 0 0.3 0.5 4 mV
(Note 4)
l
0.5
1.2
1.0
2.0
0.7 4
7
mV
mV
CMRR Common Mode Rejection Ratio 90 106 dB
IOS Input Offset Current (Note 4)
l
20 40
75
30 75
100
nA
nA
IBInput Bias Current (Note 4)
l
150 500
1000
150 500
1000
nA
nA
AVVoltage Gain 20 40 10 40 V/mV
Response Time (Note 5) 80 80 ns
VSAT Saturation Voltage VIN ≤ –5mV, IO = 25mA,
V+ ≥ 4.5V, V– = 0V
0.75 1.5 0.75 1.5 V
VIN ≤ –6mV, ISINK ≤ 3.2mA
TA ≥ 0°C
TA ≤ 0°C
0.23
0.4
0.6
0.23
0.4
0.6
V
V
Output Leakage Current VIN ≥ 5mV, VOUT to V– = 35V
l
0.2
1
2
10
0.2
1
2
10
µA
µA
Input Voltage Range VS = ±15V
V+ = 5V, V– = 0V
l
l
–12
1
±13 12
3
–12
1
±13 12
3
V
V
Differential Input Voltage l±5 ±5 V
ISSupply Current V+ = 5V, V– = 0V 4.3 4.3 mA
Positive Supply Current VS = ±15V 8 11.5 8 11.5 mA
Negative Supply Current VS = ±15V 3 4.5 3 4.5 mA
The l denotes the specifications which apply over the full operating temperature range, otherwise specifications are at TA = 25°C. (Note 3)
SYMBOL PARAMETER CONDITIONS
LT319A LM319
SYMBOLMIN TYP MAX MIN TYP MAX
VOS Input Offset Voltage VS = ±15V, VCM = 0V 0.3 0.5 8 mV
RS ≤ 5k
(Note 4)
l
0.5 1
2
2 8
10
mV
mV
CMRR Common Mode Rejection Ratio 90 106 dB
IOS Input Offset Current (Note 4)
l
30 40
60
80 200
300
nA
nA
IBInput Bias Current (Note 4)
l
150 500
1000
250 1000
1200
nA
nA
AVVoltage Gain 20 40 8 40 V/mV
Response Time (Note 5) 80 80 ns
VSAT Saturation Voltage VIN ≤ –10mV, ISINK = 25mA 0.75 1.5 0.75 1.5 V
V+ ≥ 4.5V, V– = 0V,
VIN ≤ –10mV, ISINK ≤ 3.2mA
l0.3 0.4 0.3 0.4 V
Output Leakage Current VIN ≥ 10mV, VOUT to V– = 35V 0.2 10 0.2 10 µA
Input Voltage Range VS = ±15V
V+ = 5V, V– = 0V
l
l
1
±13
3
1
±13
3
V
V
Differential Input Voltage l±5 ±5 V
ISSupply Current V+ = 5V, V– = 0V 4.3 4.3 mA
Positive Supply Current VS = ±15V 8 12.5 8 12.5 mA
Negative Supply Current VS = ±15V 3 5 3 5 mA
ELECTRICAL CHARACTERISTICS
LT119A/LT319A
LM119/LM319
4
119a319afc
TYPICAL PERFORMANCE CHARACTERISTICS
Transfer Function Input Characteristics Input Currents
Response Time for Various
Input Overdrives
Response Time for Various
Input Overdrives
Response Time for Various
Input Overdrives
ELECTRICAL CHARACTERISTICS
Note 1: Stresses beyond those listed under Absolute Maximum Ratings
may cause permanent damage to the device. Exposure to any Absolute
Maximum Rating condition for extended periods may affect device
reliability and lifetime.
Note 2: For supply voltages less than ±15V, the maximum input voltage is
equal to the supply voltage.
Note 3: Unless otherwise noted, supply voltage equals ±15V and
VCM = 0V, TA = 25°C. The ground pin is grounded. Note that the maximum
voltage allowed between the ground pin and V+ is 18V. Do not tie the
ground pin to V– when the power supply voltage exceeds ±9V. The offset
voltage, offset current and bias current specifications apply for all supply
voltages between ±15V and 5V unless otherwise specified.
Note 4: The offset voltages and currents given are the maximum values
required to drive the output within 1V of either supply with a 1mA load,
thus these parameters define an error band and take into account the
worst case effects of voltage gain and input impedance.
Note 5: Response time specified is for a 100mV input step with 5mV
overdrive.
Note 6: Inputs are protected with back-to-back 5.6V zener diodes. This
limits maximum differential input voltage to ±5V if current is unlimited.
Larger differential input drive is allowed if input current is limited to ±5mA
with external resistance.
DIFFERENTIAL INPUT VOLTAGE (mV)
–1.0
OUTPUT VOLTAGE HIGH (V)
OUTPUT VOLTAGE LOW (V)
30
40
0.6
LT119/319 G1
20
10
0–0.6 –0.2 0.2 1.0
25
35
15
5.0
6
8
4
2
0
5
7
3
1
V++ = 36V
V++ = 5V
VS = ±15V
RL = 1.4k
TA = 25°C
DIFFERENTIAL INPUT VOLTAGE (V)
–10
INPUT BIAS CURRENT (nA)
200
300
400
6
LT119/319 G2
100
0
–100 –6 –2 210
VS = ±15V
TA = 25°C
MAXIMUM
DIFFERENTIAL
INPUT VOLTAGE
TEMPERATURE (°C)
–55
0
INPUT CURRENT (nA)
50
150
200
250
–15 25 45 125
LT119/319 G3
100
–35 5 65 85 105
VS = ±15V
BIAS
OFFSET
TIME (ns)
–100
INPUT
VOLTAGE (mV)
OUTPUT
VOLTAGE (V)
–50
0
1
2
4
50 150 200
LT119/319 G4
0
5
6
3
0 100 250 300 350
2mV
20mV
5mV
VS = ±15V
RL = 500Ω
V++ = 5V
TA = 25°C
TIME (ns)
0
INPUT
VOLTAGE (mV)
OUTPUT
VOLTAGE (V)
50
0
1
2
4
50 150 200
LT119/319 G5
100
5
6
3
0 100 250 300 350
20mV
2mV
5mV
VS = 5V
RL = 500Ω
V++ = 5V
TA = 25°C
TIME (ns)
–100
INPUT
VOLTAGE (mV)
OUTPUT
VOLTAGE (V)
–50
0
1
2
4
50 150 200
LT119/319 G6
0
5
6
3
0 100 250 300 350
20mV
2mV
5mV
VS = 5V
RL = 500Ω
V++ = 5V
TA = 25°C
LT119A/LT319A
LM119/LM319
5
119a319afc
TYPICAL PERFORMANCE CHARACTERISTICS
TYPICAL APPLICATIONS
Common Mode Limits Supply Current
Output Saturation Voltage Supply Current Output Limiting Characteristics
OUTPUT VOLTAGE (V)
0
OUTPUT CURRENT (mA)
15
20
25
0.8
LT119/319 G7
10
5
00.2 0.4 0.6 1.0
VS = ±15V
INPUT OVERDRIVE = 5mV
TJ = 25°C
SUPPLY VOLTAGE (V)
0
0
SUPPLY CURRENT (mA)
2
4
6
8
5 10 15 20
LT119/319 G8
10
12
POSITIVE SUPPLY
NEGATIVE SUPPLY
TJ = 25°C
OUTPUT VOLTAGE (V)
0
0
SHORT-CIRCUIT CURRENT (mA)
20
40
60
80
120
5 10
LT119/319 G9
15
100
0
POWER DISSIPATION (W)
0.2
0.4
0.6
0.8
1.2
1.0
TJ = 25°C
SHORT-CIRCUIT CURRENT
AFTER 3 MINUTES
POWER DISSIPATION
TEMPERATURE (°C)
–55 –35 –15
V–
COMMON-MODE LIMITS (V)
0.4
1.2
–2.0
–1.6
85 105 125
V+
LT119/319 G10
0.8
255 45 65
–1.2
–0.8
–0.4 V+ = 5V, V– = 0V
VS = ±15V
VS = ±15V, V+ = 5V, V– = 0V
REFERRED TO SUPPLY VOLTAGES
0
SUPPLY CURRENT (mA)
2
6
8
10
LT119/319 G11
4
12
TEMPERATURE (°C)
–55 –35 –15 85 105 125
255 45 65
POSITIVE SUPPLY = 15V
POSITIVE SUPPLY = 5V, V– = 0V
NEGATIVE SUPPLY = –15V
Relay Driver High Noise Immunity 60Hz Sync Circuit
11
7
28V
5V
8
6
9
10 –
+
35V
LT119/319 TA3
INPUTS 1/2 LT319A
11 7
5V
8
6
9
10 –
+
LT119/319 TA4
1/2 LT319A OUTPUT
3.3k
10k
20k
0.15µF
10k
68k
1N4148
60Hz
INPUT
10VP-P
(TYP)
LT119A/LT319A
LM119/LM319
6
119a319afc
TYPICAL APPLICATIONS
Voltage Controlled High Speed One Shot
Voltage Controlled Crystal Oscillator
With 100ppm Trim Range
11 5V
12
3
4
5
LT119/319 TA5
1/2 LT319A OUTPUT
39k
1k
20k
20k
2k
–
+
–
+1k
100k 10k
INPUT
0V TO 5V
AT CUT
18pF, 100kHz
1000pF
MV1405*
5V
3k 5V
6
8
7
9
10
1/2 LT319A
1/2 LT319A
–
+
–
+
100pF
100pF
120pF
300pF
5V
680Ω
680Ω
10k
5V
2k
2k
1k
5V
INPUT
PULSE
0V TO 1V
INPUT
LM385-1.2
1/2 LT319A
1/2 LT319A
11
7
8
9
10
4
5
12
3
6
5V
7408
LT119/319 TA6
OUTPUT
0µs TO 1µs
(20ns MINIMUM)
LT119A/LT319A
LM119/LM319
7
119a319afc
TYPICAL APPLICATIONS
5 Microsecond Sample-and-Hold with Zero Hold Step
10-Bit Serial Output A/D Converter
–
+
1/2 LT119A
5
4
–
+
1/2 LT119A
9
8
10
12
3
6
–5V
5V
–5V
5V
LT119/319 TA7
5V
LT1004-1.2
PN4250 PN4250
82k
10k
4.7k
1k
1k
20k*
0.1µF†
1000µF†
2N3904
INPUT
0V TO 3.5V
1N4148
1N4148
1N4148
3.9k CONVERT
COMMAND
INPUT (TTL)
15k
39k
7
1k
10k*
5V
DATA
OUT
74C04
*1% FILM
† POLYSTYRENE, MOUNT
CAPACITORS CLOSE TOGETHER
CONVERSION TIME = 10ms
* = 1%
CAPACITORS ARE POLYSTYRENE MOUNT
IN CLOSE PROXIMITY
11
4
5
–
+
1/2 LT119A
98
10
12
6
15V
–15V
LT119/319 TA8
3k
7
*TRIM FOR ZERO VOLTS OUT
WITH ZERO VOLTS IN
† POLYSTYRENE CAPACITOR
3
11
–
+
+
15V
15V
–15V
5V
10µF 4.7k
12k 10k
3k
2N2907
2N2907
100Ω 240Ω
3k
1N4148
0.003µF†
2N4931
2N2907
2N2222
3.3k 9k
20k
10pF 2pF
TO 8pF*
15V
1k
1k
9k
INPUT
1N4148
SAMPLE
HOLD0V
Q
CLR PRESET
VS
VOUT
CLK D
74C74
1/2 LT119A
LT119A/LT319A
LM119/LM319
8
119a319afc
SCHEMATIC DIAGRAM
R2
4k
R4
3k
R5
3k
R8
2k
R11
13k
R12
13k
R17
3Ω
R10
170Ω
C1
18pF
R6
3k
R7
3k
R3
4k
R1
3.5k
Q4
Q6
Q7
Q8
Q9
Q5
Q21
Q11 Q12
Q13
Q10
Q15
Q17
GNDV–
V+
Q16
Q14
Q20
Q18
Q19
Q22
Q3
Q2
Q1
5.6V
5.6V
R25
600Ω R24
250Ω
R23
4k
R22
60Ω
R20
3.6k
R21
900Ω
R18
1.9k
R9
18k
R19
250Ω
R14
2k
R13
600Ω
R15
300
R16
600Ω
TO OTHER
SIDE
LT119A
OUTPUT
INPUTS
–
+
LT119A/LT319A
LM119/LM319
9
119a319afc
PACKAGE DESCRIPTION
Please refer to http://www.linear.com/designtools/packaging/ for the most recent package drawings.
N14 REV I 0711
.020
(0.508)
MIN
.120
(3.048)
MIN
.130 ±.005
(3.302 ±0.127)
.045 – .065
(1.143 – 1.651)
.065
(1.651)
TYP
.018 ±.003
(0.457 ±0.076)
.005
(0.127)
MIN
.255 ±.015*
(6.477 ±0.381)
.770*
(19.558)
MAX
31 24567
8910
11
1213
14
.008 – .015
(0.203 – 0.381)
.300 – .325
(7.620 – 8.255)
.325 +.035
–.015
+0.889
–0.381
8.255
( )
NOTE:
1. DIMENSIONS ARE INCHES
MILLIMETERS
*THESE DIMENSIONS DO NOT INCLUDE MOLD FLASH OR PROTRUSIONS.
MOLD FLASH OR PROTRUSIONS SHALL NOT EXCEED .010 INCH (0.254mm)
.100
(2.54)
BSC
N Package
14-Lead PDIP (Narrow .300 Inch)
(Reference LTC DWG # 05-08-1510 Rev I)
J14 0801
.045 – .065
(1.143 – 1.651)
.100
(2.54)
BSC
.014 – .026
(0.360 – 0.660)
.200
(5.080)
MAX
.015 – .060
(0.381 – 1.524)
.125
(3.175)
MIN
.300 BSC
(7.62 BSC)
.008 – .018
(0.203 – 0.457) 0° – 15°
12 3 4 567
.220 – .310
(5.588 – 7.874)
.785
(19.939)
MAX
.005
(0.127)
MIN 14 11 891013 12
.025
(0.635)
RAD TYP
NOTE: LEAD DIMENSIONS APPLY TO SOLDER DIP/PLATE
OR TIN PLATE LEADS
J Package
14-Lead CERDIP (Narrow .300 Inch, Hermetic)
(Reference LTC DWG # 05-08-1110)
OBSOLETE PACKAGE
LT119A/LT319A
LM119/LM319
10
119a319afc
PACKAGE DESCRIPTION
Please refer to http://www.linear.com/designtools/packaging/ for the most recent package drawings.
.050
(1.270)
MAX
.016 – .021**
(0.406 – 0.533)
.010 – .045*
(0.254 – 1.143)
SEATING
PLANE
.040
(1.016)
MAX .165 – .185
(4.191 – 4.699)
GAUGE
PLANE
REFERENCE
PLANE
.500 – .750
(12.700 – 19.050)
.305 – .335
(7.747 – 8.509)
.335 – .370
(8.509 – 9.398)
DIA
.230
( 5.842)
TYP
.027 – .045
(0.686 – 1.143)
.028 – .034
(0.711 – 0.864)
.110 – .160
(2.794 – 4.064)
INSULATING
STANDOFF
36°
H10(TO-5) 0204
LEAD DIAMETER IS UNCONTROLLED BETWEEN THE REFERENCE PLANE
AND THE SEATING PLANE
FOR SOLDER DIP LEAD FINISH, LEAD DIAMETER IS .016 – .024
(0.406 – 0.610)
*
**
PIN 1
H Package
10-Lead TO-5 Metal Can
(Reference LTC DWG # 05-08-1322)
OBSOLETE PACKAGE
LT119A/LT319A
LM119/LM319
11
119a319afc
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 representa-
tion that the interconnection of its circuits as described herein will not infringe on existing patent rights.
REVISION HISTORY
REV DATE DESCRIPTION PAGE NUMBER
C 3/12 VSAT Conditions corrected from VIN ≤ 6mA to VIN ≤ 6mV 3
(Revision history begins at Rev C)
LT119A/LT319A
LM119/LM319
12
119a319afc
Linear Technology Corporation
1630 McCarthy Blvd., Milpitas, CA 95035-7417
(408) 432-1900 ● FAX: (408) 434-0507 ● www.linear.com
LINEAR TECHNOLOGY CORPORATION 1994
LT 0412 REV C • PRINTED IN USA
TYPICAL APPLICATION
5kHz to 2MHz V→F Converter
9
10
–
+
1/2 LT119A
4
3
5
7
6
12
8
11
–
+
10k
1/2 LT119A
5V
3.3k
20k
† SET SCALE FACTOR
2k †
0V TO 10V
0.01µF
22pF
–5V
5V
10k
10k
2k
3k
470Ω
470Ω
50pF
POLYSTYRENE
2N2369
330Ω
5V
5V
–5V
LT1004-1.2
1M
0.1µF
TTL OUT
5kHz TO 2MHz
ALL DIODES 1N4148
LT119/319 TA9
220Ω
