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LT1721

Description
4ns, 150MHz Dual Comparator with Independent Input/Output Supplies
File Size246KB,16 Pages
ManufacturerLinear ( ADI )
Websitehttp://www.analog.com/cn/index.html
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LT1721 Overview

4ns, 150MHz Dual Comparator with Independent Input/Output Supplies

LT1715
4ns, 150MHz
Dual Comparator with
Independent Input/Output Supplies
FEATURES
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s
s
s
s
s
s
s
DESCRIPTIO
s
UltraFast: 4ns at 20mV Overdrive
150MHz Toggle Frequency
Separate Input and Output Power Supplies
Low Power: 4.6mA per Comparator at 3V
Pinout Optimized for High Speed Use
Output Optimized for 3V and 5V Supplies
TTL/CMOS Compatible Rail-to-Rail Output
Input Voltage Range Extends 100mV
Below Negative Rail
Internal Hysteresis with Specified Limits
The LT
®
1715 is an UltraFast
TM
dual comparator optimized
for low voltage operation. Separate supplies allow inde-
pendent analog input ranges and output logic levels with
no loss of performance. The input voltage range extends
from 100mV below V
EE
to 1.2V below V
CC
. Internal hyster-
esis makes the LT1715 easy to use even with slow moving
input signals. The rail-to-rail outputs directly interface to
TTL and CMOS. The symmetric output drive results in
similar rise and fall times that can be harnessed for analog
applications or for easy translation to other single supply
logic levels.
The LT1715 is available in the 10-pin MSOP package. The
pinout of the LT1715 minimizes parasitic effects by plac-
ing the most sensitive inputs away from the outputs,
shielded by the power rails.
For a dual/quad single supply comparator with similar
propagation delay, see the LT1720/LT1721. For a single
comparator with similar propagation delay, see the LT1719.
, LTC and LT are registered trademarks of Linear Technology Corporation.
UltraFast is a trademark of Linear Technology Corporation.
APPLICATIO S
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High Speed Differential Line Receivers
Level Translators
Window Comparators
Crystal Oscillator Circuits
Threshold Detectors/Discriminators
High Speed Sampling Circuits
Delay Lines
TYPICAL APPLICATIO
5V
100MHz Dual Differential Line Receiver
3V
Line Receiver Response to 100MHz Clock,
50MHz Data Both with 25mV
P-P
Inputs
3V
+
IN A
OUT A
CLOCK OUT
0V
3V
+
IN B
OUT B
DATA OUT
0V
FET PROBES
5ns/DIV
1715 TA02
–5V
1715 TA01
U
1V/DIV
1V/DIV
U
U
1

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LT1721 LT1720 LT1715 LT1715IMS LT1715CMS LT1714 LT1712 LT1711
Description 4ns, 150MHz Dual Comparator with Independent Input/Output Supplies 4ns, 150MHz Dual Comparator with Independent Input/Output Supplies 4ns, 150MHz Dual Comparator with Independent Input/Output Supplies 4ns, 150MHz Dual Comparator with Independent Input/Output Supplies 4ns, 150MHz Dual Comparator with Independent Input/Output Supplies 4ns, 150MHz Dual Comparator with Independent Input/Output Supplies 4ns, 150MHz Dual Comparator with Independent Input/Output Supplies 4ns, 150MHz Dual Comparator with Independent Input/Output Supplies
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