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Linear Technology Electronic Components Datasheet


LM319H

Dual Comparator


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LM319H pdf
LT119A/LT319A
LM119/LM319
Dual Comparator
FEATURES
s Guaranteed Maximum 0.5mV Input Offset Voltage
s Input Protection Diodes
s Operates From Single 5V Supply
s 25mA Drive Capability
s 80ns Response Time
U
APPLICATIONS
s Window Detectors
s High Speed One Shot
s Relay/Lamp Drivers
s Voltage Controlled Oscillators
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.
TYPICAL APPLICATION
Window Detector*
5V
VUT 3 + 10
500
1/2 LT319A 1
TTL OUTPUT
VIN 4
2
VOUT = 5.0V FOR
8+
1/2 LT319A
6
VLT VIN VUT
VOUT = 0V FOR
VIN VLT OR VIN VUT
VLT 9 7
5
LT119/319 TA1
*ALLOWED WINDOW FOR SINGLE +5V SUPPLY IS 1.2V TO 3.8V
Response Time for Various Input Overdrives
6
5
4
3
20mV
2
1
0
100
50
0
2mV
5mV
VS = ±15V
RL = 500
V++ = 5V
TA = 25°C
0 50 100 150 200 250 300 350
TIME (ns)
LT119/319 TA2
1



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LM319H pdf
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 ............................... – 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
PACKAGE/ORDER INFORMATION
TOP VIEW
V+
OUTPUT 1 10 –INPUT 2
19
GND 2
8 +INPUT 2
+INPUT 1 3
4
–INPUT 1
7 GND 2
6
5 OUTPUT 2
V
ORDER PART
NUMBER
LT119AH
LM119H
LT319AH
LM319H
H PACKAGE
10-LEAD TO-5 METAL CAN
TJMAX = 150°C, θJA = 150°C/ W, θJc = 45°C/ W
NC 1
NC 2
GND 3
+INPUT 4
–INPUT 5
V6
OUTPUT 2 7
TOP VIEW
14 NC
13 NC
12 OUTPUT 1
11 V +
10 – INPUT 2
9 +INPUT 2
8 GND 2
LT119AJ
LM119J
LT319AJ
LM319J
LT319AN
LM319N
J PACKAGE
N PACKAGE
14-LEAD CERAMIC DIP 14-LEAD PLASTIC DIP
TJMAX = 150°C, θJA = 100°C/ W (J)
TJMAX = 85°C, θJA = 100°C/ W (N)
Consult factory for Industrial and Military grade parts.
ELECTRICAL CHARACTERISTICS (Note 2)
SYMBOL PARAMETER
CONDITIONS
LT119A
MIN TYP MAX
LT119
MIN TYP MAX
VOS Input Offset Voltage
VOS Input Offset Voltage
VS = ±15V, VCM = 0
(Note 3)
0.3 0.5
0.5 1.0
q 1.2 2.0
4
0.7 4
7
CMRR Common-Mode Rejection Ratio
90 106
IOS Input Offset Current
(Note 3)
20 40
q 75
30 75
100
IB Input Bias Current
(Note 3)
150 500
q 1000
150 500
1000
AV Voltage Gain
Response Time
(Note 4)
20 40
80
10 40
80
VSAT Saturation Voltage
Output Leakage Current
VIN –5mV, IO = 25mA
V+ 4.5V, V= 0V
VIN –6mA, ISINK 3.2mA
TA 0°C
TA 0°C
VIN 5mV, VOUT = 35V
q
0.75 1.5
0.23 0.4
0.6
0.2 2
1 10
0.75 1.5
0.23 0.4
0.6
0.2 2
1 10
Input Voltage Range
VS = ±15V
V+ = 5V, V= 0V
q –12 ±13 12
q1
3
–12 ±13
1
12
3
UNITS
mV
mV
mV
dB
nA
nA
nA
nA
V/mV
ns
V
V
V
µA
µA
V
V
2



Part Number LM319H
Description Dual Comparator
Maker Linear Technology - Linear Technology
Total Page 8 Pages
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