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LT119A/LT319A LM119/LM319 Dual Comparator
FEATURES
s s s s s
DESCRIPTIO
Guaranteed Maximum 0.5mV Input Offset Voltage Input Protection Diodes Operates From Single 5V Supply 25mA Drive Capability 80ns Response Time
The LT(R)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.
, LTC and LT are registered trademarks of Linear Technology Corporation.
APPLICATIO S
s s s s
Window Detectors High Speed One Shot Relay/Lamp Drivers Voltage Controlled Oscillators
TYPICAL APPLICATIO
Window Detector*
5V
Response Time for Various Input Overdrives
6 5
OUTPUT VOLTAGE (V)
VUT
3
+ -
10 1
500 TTL OUTPUT
4 3 2 1 20mV
1/2 LT319A VIN 4 2
8
INPUT VOLTAGE (mV)
+
1/2 LT319A 6 7 5
VOUT = 5V FOR VLT VIN VUT VOUT = 0V FOR VIN VLT OR VIN VUT
0 100 50 0 0 50
VLT
9
-
LT119/319 TA1
*ALLOWED WINDOW FOR SINGLE 5V SUPPLY IS 1.2V TO 3.8V
U
2mV 5mV VS = 15V RL = 500 V + + = 5V TA = 25C 100 150 200 250 300 350 TIME (ns)
LT119/319 TA2
U
U
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LT119A/LT319A LM119/LM319
ABSOLUTE
AXI U
RATI GS
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)
PACKAGE/ORDER I FOR ATIO
TOP VIEW V+ OUTPUT 1 1 GND 2 +INPUT 1 3 -INPUT 1 4 5 V- 6 OUTPUT 2 10 -INPUT 2 9 8 +INPUT 2 7 GND 2
ORDER PART NUMBER LT119AH LM119H LT319AH LM319H
H PACKAGE 10-LEAD TO-5 METAL CAN TJMAX = 150C, JA = 150C/ W, Jc = 45C/ W
OBSOLETE PACKAGE
Consult LTC Marketing for parts specified with wider operating temperature ranges.
ELECTRICAL CHARACTERISTICS
SYMBOL PARAMETER VOS Input Offset Voltage CONDITIONS
The q denotes the specifications which apply over the full operating temperature range, otherwise specifications are at TA = 25C. (Note 3)
MIN LT119A TYP MAX 0.3
q
VS = 15V, VCM = 0 (Note 4)
CMRR IOS IB AV
Common Mode Rejection Ratio Input Offset Current Input Bias Current Voltage Gain Response Time (Note 5) (Note 4)
q
(Note 4)
q
2
U
U
W
WW U
W
(Note 1)
Output Short-Circuit Duration ................................... 10s Operating Temperature Range LT119A, LM119 OBSOLETE ........ - 55C to 125C LT319A, LM319...................................... 0C to 70C Storage Temperature Range ................. - 65C to 150C Lead Temperature (Soldering, 10 sec).................. 300C
TOP VIEW NC NC GND +INPUT -INPUT V- OUTPUT 2 1 2 3 4 5 6 7 14 NC 13 NC 12 OUTPUT 1 11 V + 10 - INPUT 2 9 8 +INPUT 2 GND 2
ORDER PART NUMBER LT319AN LM319N
N PACKAGE 14-LEAD PLASTIC DIP TJMAX = 150C, JA = 100C/ W
J PACKAGE 14-LEAD CERAMIC DIP TJMAX = 150C, JA = 100C/ W
LT119AJ LM119J LT319AJ LM319J
OBSOLETE PACKAGE
MIN
LM119 TYP 0.7
MAX 4 4 7 75 100 500 1000
UNITS mV mV mV dB nA nA nA nA V/mV ns
0.5 1.0 2.0 40 75 500 1000 10
0.5 1.2 90 106 20 150 20 40 80
30 150 40 80
119a319afb
LT119A/LT319A LM119/LM319
ELECTRICAL CHARACTERISTICS
SYMBOL PARAMETER VSAT Saturation Voltage CONDITIONS
The q denotes the specifications which apply over the full operating temperature range, otherwise specifications are at TA = 25C. (Note 3)
MIN LT119A TYP MAX 0.75 1.5 MIN LM119 TYP 0.75 MAX 1.5 UNITS V
VIN -5mV, IO = 25mA, V+ 4.5V, V- = 0V VIN -6mA, ISINK 3.2mA TA 0C TA 0C
0.23 0.2 1 -12 1 13
0.4 0.6 2 10 12 3 5 -12 1
0.23 0.2 1 13
0.4 0.6 2 10 12 3 5
V V A A V V V mA mA mA
Output Leakage Current Input Voltage Range Differential Input Voltage IS Supply Current Positive Supply Current Negative Supply Current
VIN 5mV, VOUT to V- = 35V
q
VS = 15V V + = 5V, V - = 0V V + = 5V, V - = 0V VS = 15V VS = 15V
q q q
4.3 8 3 11.5 4.5
4.3 8 3 11.5 4.5
The q denotes the specifications which apply over the full operating temperature range, otherwise specifications are at TA = 25C. (Note 3)
SYMBOL PARAMETER VOS Input Offset Voltage CONDITIONS VS = 15V, VCM = 0V RS 5k (Note 4) CMRR IOS IB AV VSAT Common Mode Rejection Ratio Input Offset Current Input Bias Current Voltage Gain Response Time Saturation Voltage (Note 5) VIN -10mV, ISINK = 25mA V + 4.5V, V- = 0V, VIN -10mV, ISINK 3.2mA Output Leakage Current Input Voltage Range Differential Input Voltage IS Supply Current Positive Supply Current Negative Supply Current V + = 5V, V - = 0V VS = 15V VS = 15V VIN 10mV, VOUT to V- = 35V VS = 15V V+ = 5V, V - = 0V
q q q q q
MIN
LT319A TYP MAX 0.3 0.5 0.5 1 2 40 60 500 1000
MIN
LM319 TYP 2
MAX 8 8 10 200 300 1000 1200
UNITS mV mV mV dB nA nA nA nA V/mV ns
90 (Note 4)
q
106 30 150 80 250 8 1.5 0.4 10 3 5 4.3 8 3 12.5 5 4.3 8 3 12.5 5 1 40 80 0.75 0.3 0.2 13 3 5 1.5 0.4 10
(Note 4)
q
20
40 80 0.75 0.3 0.2 13
V V A V V V mA mA mA
1
Note 1: Absolute Maximum Ratings are those values beyond which the life of a device may be impaired. 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 = 25C. 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.
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LT119A/LT319A LM119/LM319 TYPICAL PERFOR A CE CHARACTERISTICS
Transfer Function
40 35 VS = 15V RL = 1.4k TA = 25C V + + = 36V 8 7 6 V + + = 5V 5 4 3 2 1 -0.6 0.2 0.6 -0.2 DIFFERENTIAL INPUT VOLTAGE (mV) 0 1.0 -100 -10 400 VS = 15V TA = 25C
OUTPUT VOLTAGE HIGH (V)
INPUT CURRENT (nA)
30 25 20 15 10 5.0
INPUT BIAS CURRENT (nA)
0 -1.0
Response Time for Various Input Overdrives
6 5
OUTPUT VOLTAGE (V)
OUTPUT VOLTAGE (V)
4 3 2 1 20mV 5mV
4 3 2 1
2mV 5mV 20mV VS = 5V RL = 500 V + + = 5V TA = 25C
OUTPUT VOLTAGE (V)
2mV
INPUT VOLTAGE (mV)
INPUT VOLTAGE (mV)
0 0 -50 -100 0 50 100 150 200 250 300 350 TIME (ns)
LT119/319 G4
100 50 0 0 50
INPUT VOLTAGE (mV)
Output Saturation Voltage
25 TJ = 25C 20
OUTPUT CURRENT (mA)
SUPPLY CURRENT (mA)
SHORT-CIRCUIT CURRENT (mA)
15
10
5 VS = 15V INPUT OVERDRIVE = 5mV 0 0 0.2 0.6 0.8 0.4 OUTPUT VOLTAGE (V) 1.0
4
UW
LT119/319 G1
Input Characteristics
250
Input Currents
VS = 15V 200 BIAS 150
300
OUTPUT VOLTAGE LOW (V)
12 10 8 6 4 2 0
200
100
100
0
MAXIMUM DIFFERENTIAL INPUT VOLTAGE -6 2 6 -2 DIFFERENTIAL INPUT VOLTAGE (V) 10
50 OFFSET 0 - 55 -35 -15 5 25 45 65 85 105 125 TEMPERATURE (C)
LT119/319 G3
LT119/319 G2
Response Time for Various Input Overdrives
6 5 6 5 4 3 2 1 0 0 -50 -100
Response Time for Various Input Overdrives
VS = 5V RL = 500 V + + = 5V TA = 25C 20mV 5mV 2mV
VS = 15V RL = 500 V ++ = 5V TA = 25C
0
100 150 200 250 300 350 TIME (ns)
LT119/319 G5
0
50
100 150 200 250 300 350 TIME (ns)
LT119/319 G6
Supply Current
120
Output Limiting Characteristics
1.2 TJ = 25C 100 80 60 40 POWER DISSIPATION 20 0 0.2 0 15
LT119/319 G9
TJ = 25C
1.0 SHORT-CIRCUIT CURRENT AFTER 3 MINUTES
POWER DISSIPATION (W)
0.8 0.6 0.4
POSITIVE SUPPLY
NEGATIVE SUPPLY
0
15 5 10 SUPPLY VOLTAGE (V)
20
LT119/319 G8
0
5 10 OUTPUT VOLTAGE (V)
LT119/319 G7
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LT119A/LT319A LM119/LM319 TYPICAL PERFORMANCE CHARACTERISTICS
Common Mode Limits
V+ -0.4 V + = 5V, V - = 0V
SUPPLY CURRENT (mA)
COMMON-MODE LIMITS (V)
-0.8 -1.2 -1.6
VS = 15V
REFERRED TO SUPPLY VOLTAGES -2.0 1.2 0.8 0.4 V- - 55 - 35 -15 5 25 45 65 85 105 125 TEMPERATURE (C)
LT119/319 G10
VS = 15V, V + = 5V, V - = 0V
TYPICAL APPLICATIO S
Relay Driver
5V 10 11 7 8 6 28V
60Hz INPUT 10VP-P (TYP)
U
UW
Supply Current
12 10 POSITIVE SUPPLY = 15V 8 6 4 2 NEGATIVE SUPPLY = -15V
POSITIVE SUPPLY = 5V, V - = 0V
0 - 55 - 35 -15
5 25 45 65 85 105 125 TEMPERATURE (C)
LT119/319 G11
- +
INPUTS
9
1/2 LT319A
35V
LT119/319 TA3
High Noise Immunity 60Hz Sync Circuit
5V 68k 1N4148 3.3k 10 0.15F
20k
- +
6
11 7 OUTPUT
1/2 LT319A 9 8
10k
10k
LT119/319 TA4
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LT119A/LT319A LM119/LM319
TYPICAL APPLICATIO S
Voltage Controlled Crystal Oscillator With 100ppm Trim Range
AT CUT 18pF, 100kHz 5V
INPUT 0V TO 5V
100k
MV1405* 5 1000pF 4 11 5V 1k 12 9 1k 7 8 6 OUTPUT
100pF 10 2k 5V INPUT PULSE 100pF 1k 2k 0V TO 1V INPUT LM385-1.2
6
U
10k
-
1/2 LT319A
+
1/2 1/2 LT319A
+
3 39k 20k 10
-
3k 20k 2k
5V
LT119/319 TA5
Voltage Controlled High Speed One Shot
5V
- +
11 7
680 7408
1/2 LT319A 9 8
5V 10k 4 680 12 3 6 5V 300pF
LT119/319 TA6
OUTPUT 0s TO 1s (20ns MINIMUM)
+
1/2 LT319A
120pF
5
-
119a319afb
LT119A/LT319A LM119/LM319
TYPICAL APPLICATIO S
10-Bit Serial Output A/D Converter
5V
INPUT 0V TO 3.5V 20k*
LT1004-1.2 10k PN4250 PN4250 4 5
82k 0.1F 2N3904 1k 3.9k *1% FILM -5V POLYSTYRENE, MOUNT CAPACITORS CLOSE TOGETHER 1N4148 1k 15k CONVERSION TIME = 10ms * = 1% CAPACITORS ARE POLYSTYRENE MOUNT IN CLOSE PROXIMITY
LT119/319 TA7
15V
+
10F
4.7k
100 2N2907
12k 0.003F 10k 12 2N2907 3k 20k
2N2222
*TRIM FOR ZERO VOLTS OUT WITH ZERO VOLTS IN POLYSTYRENE CAPACITOR
U
5V
10k*
4.7k 5V
- +
6 -5V
11 12 3
1N4148 1000F
1/2 LT119A
9
74C04
+
1/2 LT119A 7
1k
10 1N4148
-
8 39k
DATA OUT
CONVERT COMMAND INPUT (TTL)
5V
5 Microsecond Sample-and-Hold with Zero Hold Step
1N4148 3k 15V 2N4931 15V 11 VOUT
240
2N2907
-
1/2 LT119A 3
5
3.3k -15V
9k
10pF
2pF TO 8pF* 10
-
1/2 LT119A 7 8 15V
+
6
4
1k
1k 9k
9
+
INPUT -15V 1N4148
3k
Q VS CLK D 74C74 CLR PRESET 5V 0V SAMPLE HOLD
LT119/319 TA8
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LT119A/LT319A LM119/LM319
SCHEMATIC DIAGRAM
R1 3.5k R2 4k R3 4k
Q3
-
5.6V INPUTS 5.6V Q1
Q2 R4 3k R5 3k
+
Q22 R23 4k Q21 TO OTHER SIDE LT119A R25 600 R24 250 Q20 Q19 R21 Q18 900 R19 250 R14 2k R22 60 R20 3.6k R18 1.9k Q11 R13 600 Q12
8
W
V+ R6 3k Q4 Q7 Q6 R11 13k R8 2k R9 18k Q13 Q10 Q14 Q16 R16 600 R7 3k Q9 Q8 C1 18pF R10 170 R12 13k Q15 R15 300 OUTPUT Q5 Q17 R17 3 V- GND
119a319afb
W
LT119A/LT319A LM119/LM319
PACKAGE DESCRIPTIO
SEATING PLANE .010 - .045* (0.254 - 1.143) .016 - .021** (0.406 - 0.533)
36BSC .028 - .034 (0.711 - 0.864)
*LEAD DIAMETER IS UNCONTROLLED BETWEEN THE REFERENCE PLANE AND THE SEATING PLANE .016 - .024 **FOR SOLDER DIP LEAD FINISH, LEAD DIAMETER IS (0.406 - 0.610) H10(TO-5) 0801
U
H Package 10-Lead TO-5 Metal Can
(Reference LTC DWG # 05-08-1322)
.335 - .370 (8.509 - 9.398) DIA .305 - .335 (7.747 - 8.509) .040 (1.016) MAX .050 (1.270) MAX GAUGE PLANE .165 - .185 (4.191 - 4.699) REFERENCE PLANE .500 - .750 (12.700 - 19.050) .027 - .045 (0.686 - 1.143) PIN 1 .230 ( 5.842) TYP .110 - .160 (2.794 - 4.064) INSULATING STANDOFF
OBSOLETE PACKAGE
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LT119A/LT319A LM119/LM319
PACKAGE DESCRIPTIO
.300 BSC (7.62 BSC)
.008 - .018 (0.203 - 0.457)
NOTE: LEAD DIMENSIONS APPLY TO SOLDER DIP/PLATE OR TIN PLATE LEADS
10
U
J Package 14-Lead CERDIP (Narrow .300 Inch, Hermetic)
(Reference LTC DWG # 05-08-1110)
.005 (0.127) MIN .785 (19.939) MAX 14 13 12 11 10 9 8 .025 (0.635) RAD TYP .220 - .310 (5.588 - 7.874) 1 2 3 4 5 6 7 .200 (5.080) MAX .015 - .060 (0.381 - 1.524) 0 - 15 .045 - .065 (1.143 - 1.651) .014 - .026 (0.360 - 0.660) .100 (2.54) BSC .125 (3.175) MIN
J14 0801
OBSOLETE PACKAGE
119a319afb
LT119A/LT319A LM119/LM319
PACKAGE DESCRIPTIO
.300 - .325 (7.620 - 8.255)
.008 - .015 (0.203 - 0.381) +.035 .325 -.015 .005 (0.125) .100 MIN (2.54) BSC
(
+0.889 8.255 -0.381
)
INCHES MILLIMETERS *THESE DIMENSIONS DO NOT INCLUDE MOLD FLASH OR PROTRUSIONS. MOLD FLASH OR PROTRUSIONS SHALL NOT EXCEED .010 INCH (0.254mm)
NOTE: 1. DIMENSIONS ARE
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 representation that the interconnection of its circuits as described herein will not infringe on existing patent rights.
U
N Package 14-Lead PDIP (Narrow .300 Inch)
(Reference LTC DWG # 05-08-1510)
.770* (19.558) MAX 14 13 12 11 10 9 8 .255 .015* (6.477 0.381) 1 .130 .005 (3.302 0.127) .020 (0.508) MIN 2 3 4 5 6 7 .045 - .065 (1.143 - 1.651) .065 (1.651) TYP .120 (3.048) MIN .018 .003 (0.457 0.076)
N14 1002
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LT119A/LT319A LM119/LM319
TYPICAL APPLICATIO
5V 3.3k 50pF POLYSTYRENE 5V 470 10k 2k 0V TO 10V 20k 5 2N2369 5V 330 TTL OUT 5kHz TO 2MHz
ALL DIODES 1N4148 SET SCALE FACTOR
12
Linear Technology Corporation
1630 McCarthy Blvd., Milpitas, CA 95035-7417
(408) 432-1900 q FAX: (408) 434-0507
q
U
5kHz to 2MHz VF Converter
-
12 470 22pF 5V 1M 0.01F 1/2 LT119A 4 + 3 10k 220 10k LT1004-1.2 -5V 7 11 2k
-
1/2 LT119A 8
10 0.1F
+
6
9
3k -5V
LT119/319 TA9
119a319afb LT/TP 1102 1K REV B * PRINTED IN USA
www.linear.com
(c) LINEAR TECHNOLOGY CORPORATION 1994

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