LTC6702
Tiny Micropower,
Low Voltage
Dual Comparators
FEATURES
DESCRIPTION
The LTC®6702 is an extremely small dual comparator
designed to maximize battery life while providing both
speed and low voltage operation in applications where
board space is a premium.
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Low Supply Operation: 1.7V Minimum
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Low Supply Current: 30μA/Comparator Maximum
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Propagation Delay: 500ns Maximum (–40°C to
125°C)
3.2MHz Toggle Frequency
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Thesecomparatorsoperateonsuppliesbetween1.7Vand
5.5V, and have a maximum guaranteed propagation delay
of 500ns while drawing only 30μA maximum quiescent
current. Internal hysteresis desensitizes the LTC6702 to
input noise and makes it easy to use, even with slow mov-
ing signals. CMOS inputs allow the use of large source
impedances.
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Input Voltage Range Extends 100mV Below Ground
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Internal Hysteresis: 4mV
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High Output Drive: TTL and CMOS Compatible
Specified at 15mA ꢀ(40ꢁC to 125ꢁCꢂ,
Capacitive Load Handling to 10,000pF
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Specified for (40ꢁC to 125ꢁC Temperature Range
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Available in SOT-23 and 2mm × 2mm DFN Package
The LTC6702 is available in the 8-pin SOT-23 and the tiny
2mm × 2mm DFN package.
L, LT, LTC and LTM are registered trademarks of Linear Technology Corporation.
All other trademarks are the property of their respective owners.
APPLICATIONS
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Battery Powered Systems
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Window Comparators
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Threshold Detectors/Discriminators
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Clock Regeneration
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Automotive Sensing and Controls
TYPICAL APPLICATION
Clock Regeneration Circuit
Propagation Delay vs Input Overdrive
+
V
= 3V
600
+
V
V
= 5V
= 100mV
C
A
= 10pF
LOAD
T
= 25°C
STEP
IN
LT6650
OUT
1/2 LTC6702
500
400
V
= 400mV
REFERENCE
FALLING
R
+
–
–
+
C1
0.1MF
RISING
1k
0.1MF
RECOVERED
CLOCK
ꢀUP TO 3.2MHzꢂ
300
200
100
FB
6702 TA01
CLOCK INPUT > 100mV
P-P
40
INPUT OVERDRIVE ꢀmVꢂ
0
10 20 30
50 60 70 80
6702 TA01b
6702f
1