LT319A LINER [Linear Technology], LT319A Datasheet

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LT319A

Manufacturer Part Number
LT319A
Description
Dual Comparator
Manufacturer
LINER [Linear Technology]
Datasheet

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

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LT319A Summary of contents

Page 1

... 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. Response Time for Various Input Overdrives ...

Page 2

... 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 ............................... – 125 C LT319A, LM319 ...................................... Storage Temperature Range ................. – 150 C Lead Temperature (Soldering, 10 sec).................. 300 C ELECTRICAL CHARACTERISTICS SYMBOL PARAMETER CONDITIONS ...

Page 3

... 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 current is unlimited. Larger differential input drive is allowed if input current is limited to 5mA with external resistance. LT119A/LT319A LM119/LM319 LT119A LT119 TYP MAX ...

Page 4

... LT119A/LT319A LM119/LM319 W U TYPICAL PERFORMANCE CHARACTERISTICS Transfer Function ±15V V = 36V 1. 25° 5.0 0 –1.0 –0.6 –0.2 0.2 0.6 1.0 DIFFERENTIAL INPUT VOLTAGE (mV) LT119/319 G1 Response Time for Various Input Overdrives ±15V 500 L 2mV 25°C 5mV ...

Page 5

... TEMPERATURE (°C) LT119/319 G11 High Noise Immunity 60Hz Sync Circuit 5V 68k 20k 9 – LT319A 0.15µ 10k 10k LT319A LT319A OUTPUT – LT119/319 TA5 3.3k OUTPUT LT119/319 TA4 5 ...

Page 6

... WITH ZERO VOLTS IN † POLYSTYRENE CAPACITOR 6 Voltage Controlled High Speed One Shot 5V 100pF 9 10 – LT319A 10k LT319A 2k 2 120pF 4 7 – 5 INPUT LM385-1.2 5V 10-Bit Serial Output A/D Converter 5V 4. – 1N4148 LT119A 1000µF ...

Page 7

... 18k R23 R22 R20 R18 4k 60 3.6k 1.9k Q21 R19 Q20 250 TO OTHER Q19 SIDE LT119A Q18 R24 R21 250 900 LT119A/LT319A LM119/LM319 5V 330 TTL OUT 5kHz TO 2MHz 2N2369 5V 1M 10k – LT119A 2 0.1µ LT119/319 TA9 –5V ...

Page 8

... 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 SEATING PLANE 0.010 – 0.045 (0.254 – 1.143) CORNER LEADS OPTION (4 PLCS) 0.023 – 0.045 (0.584 – 1.143) HALF LEAD OPTION 0.045 – ...

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