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LT1719

Description
COMPARATOR, 3500 uV OFFSET-MAX, 7 ns RESPONSE TIME, PDSO8
Categorysemiconductor    Analog mixed-signal IC   
File Size222KB,16 Pages
ManufacturerLinear ( ADI )
Websitehttp://www.analog.com/cn/index.html
Download Datasheet Parametric Compare View All

LT1719 Overview

COMPARATOR, 3500 uV OFFSET-MAX, 7 ns RESPONSE TIME, PDSO8

LT1719 Parametric

Parameter NameAttribute value
Number of functions1
Number of terminals8
Maximum supply/operating voltage6 V
Maximum operating temperature70 Cel
Minimum operating temperature0.0 Cel
Rated supply voltage5 V
Maximum negative supply voltage-6 V
Rated negative supply voltage-5 V
Rated response time7 ns
Maximum input offset voltage3500 mV
Processing package description0.150 INCH, Plastic, SOP-8
stateACTIVE
CraftsmanshipBIPOLAR
packaging shapeRectangle
Package SizeSMALL OUTLINE
surface mountYes
Terminal formGULL WING
Terminal spacing1.27 mm
terminal coatingtin lead
Terminal locationpair
Packaging MaterialsPlastic/Epoxy
Temperature levelCOMMERCIAL
Output typeO-EMT
Amplifier typeComparators
Maximum input bias current IIB0.0 uA
LT1719
4.5ns Single/Dual Supply
3V/5V Comparator with
Rail-to-Rail Output
FEATURES
s
s
s
s
s
DESCRIPTIO
s
s
UltraFast: 4.5ns at 20mV Overdrive
7ns at 5mV Overdrive
Low Power: 4.2mA at 3V
Separate Input and Output Power Supplies
Output Optimized for 3V and 5V Supplies
Input Voltage Range Extends 100mV
Below Negative Rail
TTL/CMOS Compatible Rail-to-Rail Output
Low Power Shutdown Mode: 0.1µA
APPLICATIO S
s
s
s
s
s
s
s
High Speed Differential Line Receiver
Crystal Oscillator Circuits
Level Translators
Threshold Detectors/Discriminators
Zero-Crossing Detectors
High Speed Sampling Circuits
Delay Lines
The LT
®
1719 is an UltraFast
TM
comparator optimized for low
voltage operation. Separate supplies allow flexible operation
to accomodate separate analog input ranges and output logic
levels. The input voltage range extends from 100mV below
V
EE
to 1.2V below V
CC
. Internal hysteresis makes the LT1719
easy to use even with slow moving input signals. The rail-to-
rail outputs directly interface to TTL and CMOS. Alternatively
the symmetric output drive can be harnessed for analog
applications or for easy translation to other single supply
logic levels.
The LT1719 is available in the 8-pin SO package; a shutdown
control allows for reduced power consumption and extended
battery life in portable applications.
For a dual/quad comparator with similar performance, see
the LT1720/LT1721.
, LTC and LT are registered trademarks of Linear Technology Corporation.
UltraFast is a trademark of Linear Technology Corporation.
TYPICAL APPLICATION
2.7V to 6V Crystal Oscillator with TTL/CMOS Output
2.7V TO 6V
2k
220Ω
1MHz TO 10MHz
CRYSTAL (AT-CUT)
8
7
6
GROUND
CASE
OUTPUT
RISING EDGE
(t
PDLH
)
25°C
V
STEP
= 100mV
V
CC
= 5V
C
LOAD
= 10pF
Propagation Delay vs Overdrive
DELAY (ns)
620Ω
5
4
3
2
FALLING EDGE
(t
PDHL
)
+
C1
LT1719
2k
1719 TA01
1
0
0
10
20
30
OVERDRIVE (mV)
40
50
1719 TA02
0.01µF
1.8k
U
U
U
1

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