1
LT119A/LT319A
LM119/LM319
119a319afb
■
Guaranteed
Maximum 0.5mV Input Offset Voltage
■
Input Protection Diodes
■
Operates From Single 5V Supply
■
25mA Drive Capability
■
80ns Response Time
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.
Dual Comparator
■
Window Detectors
■
High Speed One Shot
■
Relay/Lamp Drivers
■
Voltage Controlled Oscillators
–
+
–
+
5V
500Ω
TTL OUTPUT
LT119/319 TA1
1
10
3
4
8
9
5
7
6
2
1/2 LT319A
1/2 LT319A
V
UT
V
OUT
= 5V FOR
V
LT
≤ V
IN
≤ V
UT
V
OUT
= 0V FOR
V
IN
≤ V
LT
OR V
IN
≤ V
UT
V
IN
V
LT
*
ALLOWED WINDOW FOR SINGLE 5V SUPPLY IS 1.2V TO 3.8V
Window Detector*
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
V
S
= ±15V
R
L
= 500Ω
V
++
= 5V
T
A
= 25°C
Response Time for Various Input Overdrives
FEATURES
DESCRIPTIO
U
APPLICATIO S
U
TYPICAL APPLICATIO
U
, LTC and LT are registered trademarks of Linear Technology Corporation.
2
LT119A/LT319A
LM119/LM319
119a319afb
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)
ABSOLUTE AXI U RATI GS
WWWU
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
T
JMAX
= 150°C, θ
JA
= 150°C/W, θ
Jc
= 45°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
LT119AH
LM119H
LT319AH
LM319H
ORDER PART
NUMBER
PACKAGE/ORDER I FOR ATIO
UU
W
(Note 1)
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
–INPUT
V
–
OUTPUT 2
NC
NC
OUTPUT 1
V
+
–INPUT 2
+INPUT 2
GND 2
J PACKAGE 14-LEAD CERAMIC DIP
T
JMAX
= 150°C, θ
JA
= 100°C/W
LT319AN
LM319N
ORDER PART
NUMBER
T
JMAX
= 150°C, θ
JA
= 100°C/W
LT119AJ
LM119J
LT319AJ
LM319J
OBSOLETE PACKAGEOBSOLETE PACKAGE
The ● denotes the specifications which apply over the full operating
temperature range, otherwise specifications are at TA = 25°C. (Note 3)
Consult LTC Marketing for parts specified with wider operating temperature ranges.
ELECTRICAL CHARACTERISTICS
LT119A LM119
SYMBOL PARAMETER CONDITIONS MIN TYP MAX MIN TYP MAX UNITS
V
OS
Input Offset Voltage V
S
= ±15V, V
CM
= 0 0.3 0.5 4 mV
(Note 4) 0.5 1.0 0.7 4 mV
●1.2 2.0 7 mV
CMRR Common Mode Rejection Ratio 90 106 dB
I
OS
Input Offset Current (Note 4) 20 40 30 75 nA
●75 100 nA
I
B
Input Bias Current (Note 4) 150 500 150 500 nA
●1000 1000 nA
A
V
Voltage Gain 20 40 10 40 V/mV
Response Time (Note 5) 80 80 ns
3
LT119A/LT319A
LM119/LM319
119a319afb
LT119A LM119
SYMBOL PARAMETER CONDITIONS MIN TYP MAX MIN TYP MAX UNITS
V
SAT
Saturation Voltage V
IN
≤ –5mV, I
O
= 25mA, 0.75 1.5 0.75 1.5 V
V
+
≥ 4.5V, V
–
= 0V
V
IN
≤ –6mA, I
SINK
≤ 3.2mA
T
A
≥ 0°C 0.23 0.4 0.23 0.4 V
T
A
≤ 0°C 0.6 0.6 V
Output Leakage Current V
IN
≥ 5mV, V
OUT
to V
–
= 35V 0.2 2 0.2 2 µA
●110 110 µA
Input Voltage Range V
S
= ±15V ●–12 ±13 12 –12 ±13 12 V
V
+
= 5V, V
–
= 0V ●131 3V
Differential Input Voltage ●±5±5V
I
S
Supply Current V
+
= 5V, V
–
= 0V 4.3 4.3 mA
Positive Supply Current V
S
= ±15V 8 11.5 8 11.5 mA
Negative Supply Current V
S
= ±15V 3 4.5 3 4.5 mA
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
V
CM
= 0V, T
A
= 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.
LT319A LM319
SYMBOL PARAMETER CONDITIONS MIN TYP MAX MIN TYP MAX UNITS
V
OS
Input Offset Voltage V
S
= ±15V, V
CM
= 0V 0.3 0.5 8 mV
R
S
≤ 5k 0.5 1 2 8 mV
(Note 4) ●210mV
CMRR Common Mode Rejection Ratio 90 106 dB
I
OS
Input Offset Current (Note 4) 30 40 80 200 nA
●60 300 nA
I
B
Input Bias Current (Note 4) 150 500 250 1000 nA
●1000 1200 nA
A
V
Voltage Gain 20 40 8 40 V/mV
Response Time (Note 5) 80 80 ns
V
SAT
Saturation Voltage V
IN
≤ –10mV, I
SINK
= 25mA 0.75 1.5 0.75 1.5 V
V
+
≥ 4.5V, V
–
= 0V, ●0.3 0.4 0.3 0.4 V
V
IN
≤ –10mV, I
SINK
≤ 3.2mA
Output Leakage Current V
IN
≥ 10mV, V
OUT
to V
–
= 35V 0.2 10 0.2 10 µA
Input Voltage Range V
S
= ±15V ●±13 ±13 V
V
+
= 5V, V
–
= 0V ●131 3V
Differential Input Voltage ●±5±5V
I
S
Supply Current V
+
= 5V, V
–
= 0V 4.3 4.3 mA
Positive Supply Current V
S
= ±15V 8 12.5 8 12.5 mA
Negative Supply Current V
S
= ±15V 35 35 mA
The ● denotes the specifications which apply over the full operating
temperature range, otherwise specifications are at TA = 25°C. (Note 3)
ELECTRICAL CHARACTERISTICS
The ● denotes the specifications which apply over the full operating temperature range, otherwise specifications are at TA = 25°C. (Note 3)
4
LT119A/LT319A
LM119/LM319
119a319afb
Input CurrentsTransfer Function
Response Time for Various
Input Overdrives
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
V
S
= ±15V
R
L
= 500Ω
V
++
= 5V
T
A
= 25°C
Response Time for Various
Input Overdrives
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
V
S
= 5V
R
L
= 500Ω
V
++
= 5V
T
A
= 25°C
Output Saturation Voltage
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
V
S
= ±15V
INPUT OVERDRIVE = 5mV
T
J
= 25°C
OUTPUT VOLTAGE (V)
0
0
SHORT-CIRCUIT CURRENT (mA)
20
40
60
80
120
510
LT119/319 G9
15
100
0
POWER DISSIPATION (W)
0.2
0.4
0.6
0.8
1.2
1.0
T
J
= 25°C
SHORT-CIRCUIT CURRENT
AFTER 3 MINUTES
POWER DISSIPATION
Supply Current
Response Time for Various
Input Overdrives
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
V
S
= 5V
R
L
= 500Ω
V
++
= 5V
T
A
= 25°C
DIFFERENTIAL INPUT VOLTAGE (V)
–10
INPUT BIAS CURRENT (nA)
200
300
400
6
LT119/319 G2
100
0
–100 –6 –2 210
V
S
= ±15V
T
A
= 25°C
MAXIMUM
DIFFERENTIAL
INPUT VOLTAGE
Input Characteristics
SUPPLY VOLTAGE (V)
0
0
SUPPLY CURRENT (mA)
2
4
6
8
51015 20
LT119/319 G8
10
12
POSITIVE SUPPLY
NEGATIVE SUPPLY
T
J
= 25°C
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
V
S
= ±15V
R
L
= 1.4k
T
A
= 25°C
TEMPERATURE (°C)
–55
0
INPUT CURRENT (nA)
50
150
200
250
–15 25 45 125
LT119/319 G3
100
–35 5 65 85 105
V
S
= ±15V
BIAS
OFFSET
Output Limiting Characteristics
TYPICAL PERFOR A CE CHARACTERISTICS
UW
5
LT119A/LT319A
LM119/LM319
119a319afb
TYPICAL PERFORMANCE CHARACTERISTICS
UW
Common Mode Limits Supply Current
Relay Driver
High Noise Immunity 60Hz Sync Circuit
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
10V
P-P
(TYP)
11
7
28V
5V
8
6
9
10
–
+
35V
LT119/319 TA3
INPUTS 1/2 LT319A
0
SUPPLY CURRENT (mA)
2
6
8
10
LT119/319 G11
4
12
TEMPERATURE (°C)
–55 – 35 –15 85 105 125
2554565
POSITIVE SUPPLY = 15V
POSITIVE SUPPLY = 5V, V
–
= 0V
NEGATIVE SUPPLY = –15V
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
2554565
–1.2
–0.8
–0.4 V
+
= 5V, V
–
= 0V
V
S
= ±15V
V
S
= ±15V, V
+
= 5V, V
–
= 0V
REFERRED TO SUPPLY VOLTAGES
TYPICAL APPLICATIO S
U
6
LT119A/LT319A
LM119/LM319
119a319afb
–
+
–
+
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)
Voltage Controlled High Speed One Shot
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
Voltage Controlled Crystal Oscillator
With 100ppm Trim Range
TYPICAL APPLICATIO S
U
7
LT119A/LT319A
LM119/LM319
119a319afb
TYPICAL APPLICATIO S
U
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
10µF4.7k
12k 10k
3k
2N2907
2N2907
100Ω240Ω3k
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
V
S
V
OUT
CLK D
74C74
1/2 LT119A
5 Microsecond Sample-and-Hold with Zero Hold Step
–
+
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
10-Bit Serial Output A/D Converter
8
LT119A/LT319A
LM119/LM319
119a319afb
SCHEMATIC DIAGRAM
WW
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
600ΩR24
250Ω
R23
4k R22
60ΩR20
3.6k
R21
900Ω
R18
1.9k
R9
18k
R19
250ΩR14
2k
R13
600Ω
R15
300
R16
600Ω
TO OTHER
SIDE
LT119A
OUTPUT
INPUTS
–
+
9
LT119A/LT319A
LM119/LM319
119a319afb
U
PACKAGE DESCRIPTIO
H Package
10-Lead TO-5 Metal Can
(Reference LTC DWG # 05-08-1322)
.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°BSC
H10(TO-5) 0801
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
OBSOLETE PACKAGE
10
LT119A/LT319A
LM119/LM319
119a319afb
U
PACKAGE DESCRIPTIO
OBSOLETE PACKAGE
J Package
14-Lead CERDIP (Narrow .300 Inch, Hermetic)
(Reference LTC DWG # 05-08-1110)
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°
1234567
.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
11
LT119A/LT319A
LM119/LM319
119a319afb
U
PACKAGE DESCRIPTIO
N Package
14-Lead PDIP (Narrow .300 Inch)
(Reference LTC DWG # 05-08-1510)
N14 1002
.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
(0.125)
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
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-
tation that the interconnection of its circuits as described herein will not infringe on existing patent rights.
12
LT119A/LT319A
LM119/LM319
119a319afb
LT/TP 1102 1K REV B • PRINTED IN USA
LINEAR TECHNOLOGY CORPORATION 1994
Linear Technology Corporation
1630 McCarthy Blvd., Milpitas, CA 95035-7417
(408) 432-1900
●
FAX: (408) 434-0507
●
www.linear.com
5kHz to 2MHz V→F Converter
9
10
–
+
1/2 LT119A
43
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
TYPICAL APPLICATIO
U