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LT119A/LT319A LM119/LM319 Dual Comparator
FEATURES
s s s s s
DESCRIPTION
The LT119A 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.
Guaranteed Maximum 0.5mV Input Offset Voltage Input Protection Diodes Operates From Single 5V Supply 25mA Drive Capability 80ns Response Time
APPLICATIONS
s s s s
Window Detectors High Speed One Shot Relay/Lamp Drivers Voltage Controlled Oscillators
TYPICAL APPLICATION
Window Detector*
5V VUT OUTPUT VOLTAGE (V) 3
Response Time for Various Input Overdrives
6 5 500
+ -
10 1
4 3 2 1 20mV
1/2 LT319A
TTL OUTPUT
VIN
4
2 VOUT = 5.0V FOR VLT VIN VUT VOUT = 0V FOR VIN VLT OR VIN VUT
8
INPUT VOLTAGE (mV)
0 100 50 0 0 50
+
1/2 LT319A
6 7
VLT
9
-
5
LT119/319 TA1
*ALLOWED WINDOW FOR SINGLE +5V SUPPLY IS 1.2V TO 3.8V
U
U
U
2mV 5mV
VS = 15V RL = 500 V ++ = 5V TA = 25C
100 150 200 250 300 350 TIME (ns)
LT119/319 TA2
1
LT119A/LT319A LM119/LM319
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 5) .......................... 5V Differential Input Current (Note 5) ........................ 5mA Input Voltage (Note 1) Output Short-Circuit Duration ................................... 10s Operating Temperature Range LT119A, LM119 ............................... - 55C to 125C LT319A, LM319 ...................................... 0C to 70C Storage Temperature Range ................. - 65C to 150C Lead Temperature (Soldering, 10 sec).................. 300C
PACKAGE/ORDER INFORMATION
TOP VIEW V+ -INPUT 2 OUTPUT 1 10 1 9 GND 2 +INPUT 1 3 -INPUT 1 4 5 V- 6 OUTPUT 2 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
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
LT119AJ LM119J LT319AJ LM319J LT319AN LM319N
J PACKAGE 14-LEAD CERAMIC DIP
N PACKAGE 14-LEAD PLASTIC DIP
TJMAX = 150C, JA = 100C/ W (J) TJMAX = 85C, JA = 100C/ W (N)
Consult factory for Industrial and Military grade parts.
ELECTRICAL CHARACTERISTICS
SYMBOL PARAMETER VOS Input Offset Voltage VOS Input Offset Voltage CMRR IOS IB AV VSAT Common-Mode Rejection Ratio Input Offset Current Input Bias Current Voltage Gain Response Time Saturation Voltage CONDITIONS VS = 15V, VCM = 0 (Note 3)
(Note 2)
MIN LT119A TYP MAX 0.3 0.5 0.5 1.0 1.2 2.0 106 20 40 75 150 500 1000 40 80 0.75 1.5 MIN LT119 TYP 0.7 MAX 4 4 7 75 100 500 1000 UNITS mV mV mV dB nA nA nA nA V/mV ns V
q
90 (Note 3)
q
30 150 10 40 80 0.75
(Note 3)
q
20 (Note 4) VIN -5mV, IO = 25mA V+ 4.5V, V - = 0V VIN -6mA, ISINK 3.2mA TA 0C TA 0C VIN 5mV, VOUT = 35V
q
1.5
0.23 0.2 1 13
Output Leakage Current Input Voltage Range
VS = 15V V+ = 5V, V - = 0V
q q
-12 1
0.4 0.6 2 10 12 3
0.23 0.2 1 13
-12 1
0.4 0.6 2 10 12 3
2
U
W
U
U
WW
W
V V A A V V
LT119A/LT319A LM119/LM319
ELECTRICAL CHARACTERISTICS
SYMBOL PARAMETER Differential Input Voltage IS Supply Current IS Positive Supply Current IS Negative Supply Current VOS Input Offset Voltage VOS Input Offset Voltage CMRR IOS IB AV VSAT Common-Mode Rejection Ratio Input Offset Current Input Bias Current Voltage Gain Response Time Saturation Voltage CONDITIONS
(Note 2)
MIN
q
V + = 5V, V - = 0V VS = 15V VS = 15V VS = 15V, VCM = 0V RS 5k (Note 3) (Note 3)
q
90
q
(Note 3)
q
20 (Note 4) VIN -10mV, ISINK = 25mA TA = 25C V+ 4.5V, V- = 0V VIN -10mV, ISINK 3.2mA VIN 10mV, VOUT = 35V VS = 15V V+ = 5V, V - = 0V V+ = 5V, V - = 0V VS = 15V VS = 15V
LT119A TYP MAX 5 4.3 8 11.5 3 4.5 0.3 0.5 0.5 1 2 106 30 40 60 150 500 1000 40 80 0.75 1.5 0.4 10 3 5 4.3 8 3 12.5 5
MIN
LT119 TYP 4.3 8 3 2
MAX 5 11.5 4.5 8 8 10 200 300 1000 1200
80 250 8 40 80 0.75 0.3 0.2 13 1 4.3 8 3
UNITS V mA mA mA mV mV mV dB nA nA nA nA V/mV ns V V A V V V mA mA mA
1.5 0.4 10 3 5 12.5 5
q q q q
Output Leakage Current Input Voltage Range Differential Input Voltage Supply Current Positive Supply Current Negative Supply Current
0.3 0.2 13 1
IS IS IS
The q denotes specifications which apply over the full operating temperature range. Note 1: For supply voltages less than 15V, the maximum input voltage is equal to the supply voltage. Note 2: Unless otherwise noted, supply voltage equals 15V and 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 3: 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 4: Response time specified is for a 100mV input step with 5mV overdrive. Note 5: 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.
3
LT119A/LT319A LM119/LM319 TYPICAL PERFORMANCE 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
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
VS = 15V RL = 500 V ++ = 5V TA = 25C
INPUT VOLTAGE (mV)
0 -50 -100 0 50 100 150 200 250 300 350 TIME (ns)
LT119/319 G4
INPUT VOLTAGE (mV)
100 50 0 0 50
INPUT VOLTAGE (mV)
0
Output Saturation Voltage
25 TJ = 25C 20
SHORT-CIRCUIT CURRENT (mA)
OUTPUT CURRENT (mA)
SUPPLY 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 LT119/319 G7
Input Characteristics
400 VS = 15V TA = 25C 300
250
Input Currents
VS = 15V 200 BIAS 150
OUTPUT VOLTAGE LOW (V)
12 10 8 6 4 2 0
200
100
100
0
-100 -10
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
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
TJ = 25C
Output Limiting Characteristics
1.2 TJ = 25C 100 80 60 40 POWER DISSIPATION 20 0 0.2 0 SHORT-CIRCUIT CURRENT AFTER 3 MINUTES 1.0
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)
15
LT119/319 G9
LT119A/LT319A LM119/LM319 TYPICAL PERFORMANCE CHARACTERISTICS
Common-Mode Limits
V+ -0.4
COMMON-MODE LIMITS (V)
VS = 15V
SUPPLY CURRENT (mA)
-0.8 -1.2 -1.6
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 APPLICATIONS
Relay Driver
5V 9 INPUTS 8 10 6 7 5 35V
60Hz INPUT 10VP-P (TYP) 1N4148 20k 0.15F 3.3k 9
- +
1/2 LT319A
INPUT 0V TO 5V
100k
MV1405* 4 1000pF 3 10 5V 1k 1 8 1k 6 7 5 OUTPUT
U
UW
-
Supply Current
12
V + = 5V, V - = 0V
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
High Noise Immunity 60Hz Sync Circuit
5V
28V
68k
- +
5
10 6 OUTPUT
1/2 LT319A
8
7 10k
LT119/319 TA3
Voltage Controlled Crystal Oscillator With 100PPM Trim Range
AT CUT 18pF, 100kHz 5V 10k
10k
LT119/319 TA4
-
1/2 LT319A
+
1/2 LT319A
+
2 39k 20k 9
-
3k 20k 2k
5V
LT119/319 TA5
5
LT119A/LT319A LM119/LM319
TYPICAL APPLICATIONS
Voltage Controlled High Speed One Shot
5V 100pF 9 2k 5V INPUT PULSE 100pF 1k 2k 0V TO 1V INPUT LM385-1.2
5V
INPUT 0V TO 3.5V 20k*
LT1004-1.2 10k PN4250 PN4250 3 4
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 1 2N2907 3k 20k
2N2222
*TRIM FOR ZERO VOLTS OUT WITH ZERO VOLTS IN POLYSTYRENE CAPACITOR
6
U
- +
10 6
680 7408
1/2 LT319A
8
2 5V 10k OUTPUT 0s TO 1s (20ns MINIMUM) 680 1 7 5 300pF
LT119/319 TA6
3
+
1/2 LT319A
120pF
4
-
5V
10-Bit Serial Output A/D Converter
5V 10k*
4.7k 5V
- +
5 -5V
10 1 2
1N4148 1000F
1/2 LT119A
8
74C04
+
1/2 LT119A
1k 6 DATA OUT 39k
9 1N4148
-
7
CONVERT COMMAND INPUT (TTL)
5V
5 Microsecond Sample-and-Hold with Zero Hold Step
1N4148 3k 15V 2N4931 15V 10 VOUT
240
2N2907
-
1/2 LT119A
3
3.3k -15V
9k
10pF
2pF TO 8pF*
9
-
1/2 LT119A
2
+
5
4
1k
6 7
1k 9k
8
+
15V
INPUT -15V 1N4148
3k
Q VS CLK D 74C74 CLR PRESET 5V 0V SAMPLE HOLD
LT119/319 TA8
LT119A/LT319A LM119/LM319
TYPICAL APPLICATIONS
5kHz to 2MHz VF Converter
5V 3.3k 50pF POLYSTYRENE 5V 470 10k 2k 0V TO 10V 20k 4 0.01F 3 2N2369 5V 330 TTL OUT 5kHz TO 2MHz
ALL DIODES 1N4148 SET SCALE FACTOR
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
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
-
1/2 LT119A
1
470 22pF 5V 1M
+
2
10k
220
10k LT1004-1.2 -5V 6 10
2k
-
1/2 LT119A
9 0.1F
7
+
5
8
3k -5V
LT119/319 TA9
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
W
7
LT119A/LT319A LM119/LM319
PACKAGE DESCRIPTION
0.335 - 0.370 (8.509 - 9.398) DIA 0.305 - 0.335 (7.747 - 8.509) 0.040 (1.016) MAX 0.050 (1.270) MAX GAUGE PLANE 0.010 - 0.045 (0.254 - 1.143) 0.165 - 0.185 (4.191 - 4.699) REFERENCE PLANE 0.500 - 0.750 (12.700 - 19.050) 0.110 - 0.160 (2.794 - 4.064) INSULATING STANDOFF
SEATING PLANE
CORNER LEADS OPTION (4 PLCS)
0.023 - 0.045 (0.584 - 1.143) HALF LEAD OPTION 0.045 - 0.068 (1.143 - 1.727) FULL LEAD OPTION 0.300 BSC (0.762 BSC)
0.008 - 0.018 (0.203 - 0.457) 0.385 0.025 (9.779 0.635)
NOTE: LEAD DIMENSIONS APPLY TO SOLDER DIP OR TIN PLATE LEADS.
0.300 - 0.325 (7.620 - 8.255)
0.130 0.005 (3.302 0.127) 0.015 (0.380) MIN
0.009 - 0.015 (0.229 - 0.381) +0.025 0.325 -0.015 +0.635 8.255 -0.381
(
)
0.125 (3.175) MIN
*THESE DIMENSIONS DO NOT INCLUDE MOLD FLASH OR PROTRUSIONS. MOLD FLASH OR PROTRUSIONS SHALL NOT EXCEED 0.010 INCH (0.254mm).
8
Linear Technology Corporation
1630 McCarthy Blvd., Milpitas, CA 95035-7487
(408) 432-1900 q FAX: (408) 434-0507 q TELEX: 499-3977
U
Dimension in inches (millimeters) unless otherwise noted. H Package 10-Lead T0-5 Metal Can
0.016 - 0.021 (0.406 - 0.533)
36BSC 0.027 - 0.034 (0.686 - 0.864)
0.027 - 0.045 (0.686 - 1.143)
0.230 ( 5.842) BSC
H10(5) 0592
NOTE: LEAD DIAMETER IS UNCONTROLLED BETWEEN THE REFERENCE PLANE AND SEATING PLANE.
J Package 14-Lead Ceramic DIP
0.005 (0.127) MIN 0.785 (19.939) MAX 14 13 12 11 10 9 8
0.025 (0.635) RAD TYP
0.220 - 0.310 (5.588 - 7.874)
1
2
3
4
5
6
7 0.200 (5.080) MAX 0.015 - 0.060 (0.381 - 1.524)
0 - 15
0.045 - 0.068 (1.143 - 1.727) 0.014 - 0.026 (0.360 - 0.660)
0.100 0.010 (2.540 0.254)
0.125 (3.175) MIN
J14 0594
N Package 14-Lead Plastic DIP
0.045 - 0.065 (1.143 - 1.651) 14 13 12
0.770* (19.558) MAX 11 10 9 8
0.260 0.010* 0.065 (6.604 0.254) (1.651) TYP 0.075 0.015 (1.905 0.381) 0.100 0.010 (2.540 0.254) 1 0.018 0.003 (0.457 0.076) 2 3 4 5 6 7
N14 0594
LT/GP 0694 5K REV A * PRINTED IN USA
(c) LINEAR TECHNOLOGY CORPORATION 1994

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