LTC6752/LTC6752-1/
LTC6752-2/LTC6752-3/
LTC6752-4
280MHz, 2.9ns Comparator
Family with Rail-to-Rail Inputs
and CMOS Outputs
Fea T Descrip T
n
Very High Toggle Rate: 280MHz The LTC 6752 is a family of very high speed comparators
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Low Propagation Delay: 2.9ns capable of supporting toggle rates up to 280MHz. These
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Rail-to-Rail Inputs Extend Beyond Both Rails comparators exhibit low propagation delays of 2.9ns, and
n
Output Current Capability: 22mA fast rise/fall times of 1.2ns. There are a total of 5 members
n
Low Quiescent Current: 4.5mA in the LTC6752 family, with different options for separate
n
Features within the LTC6752 Family: input and output supplies, shutdown, output latch, adjust-
n
2.45V to 5.25V Input Supply and 1.71V to 3.5V able hysteresis, complementary outputs, and package.
Output Supply (Separate Supply Option)
The LTC6752 comparators have rail-to-rail inputs that
n
2.45V to 3.5V Supply (Single Supply Option)
operate from 2.45V, up to 3.5V or 5.25V, depending on
n
Shutdown Pin for Reduced Power
the option. The outputs are CMOS and the separate supply
n
Output Latch and Adjustable Hysteresis
options can operate down to 1.71V, allowing for directly
n
Complementary Outputs
interfacing to 1.8V logic devices.
n
Packages: TSOT-23, SC70, MSOP, 3mm 3mm QFN
n The low propagation delay of only 2.9ns combined with
Direct Replacement for ADCMP60X Family
n low dispersion of only 1.8ns (10mV to 125mV overdrive
Fully Specified from 55C to 125C
variation) makes these comparators an excellent choice
for critical timing applications. Similarly, the fast toggle
a T
rate and the low jitter of 4.5ps RMS (100mV , 100MHz
P-P
input) make the LTC6752 family ideally suited for high
n
Clock and Data Recovery
frequency line driver and clock recovery circuits.
n
Level Shifting
n L, LT, LTC, LTM, Linear Technology and the Linear logo are registered trademarks of Analog
High Speed Data Acquisition Systems
Devices, Inc. All other trademarks are the property of their respective owners.
n
Window Comparators
n
High Speed Line Receivers
n
Fast Crystal Oscillators
n
Time of Flight Measurements
n
Time Domain Reflectometry
Typical a T
Q IN +IN
High Speed Differential Line Receiver with Excellent
Common Mode Rejection
SMALL DIFFERENTIAL SIGNAL WITH
500mV/DIV
LARGE COMMON MODE COMPONENT
V = 5V
CC
+IN
+ V = 2.7V
DD
Q
LTC6752-2
IN
V 6752 T01a
EE
50ns/DIV
6752 T01a
6752fc
1
For more information www.linear.com/LTC6752
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ion uresLTC6752/LTC6752-1/
LTC6752-2/LTC6752-3/
LTC6752-4
a Te Maxi Mu M r a T
(Note 1)
Total Supply Voltage (V to V ) Specified Temperature Range (Note 4)
CC EE
(LTC6752-2/LTC6752-3/LTC6752-4) ....................5.5V LTC6752I .............................................40C to 85C
(LTC6752/LTC6752-1) ..........................................3.6V LTC6752H .......................................... 40C to 125C
Total Supply Voltage (V to V ) ............................3.6V LTC6752MP ....................................... 55C to 125C
DD EE
Input Current (+IN, IN, SHDN, LE/HYST) Storage Temperature Range .................. 65C to 125C
(Note 2) ................................................................ 10mA Maximum Junction Temperature (Note 3)............. 150C
Output Current (Q, Q) (Note 3) ............................ 50mA Lead Temperature Soldering (10s) ........................300C
p in c F T
LTC6752 LTC6752-1 LTC6752-2
TOP VIEW
TOP VIEW
TOP VIEW
Q 1 6 V
CC
Q 1 5 V V 1 8 V
CC DD
CC
V 2 5 LE/HYST +IN 2 7 Q
EE
V 2
EE
IN 3 6 V
EE
+IN 3 4 IN
+IN 3 4 IN SHDN 4 5 LE/HYST
SC6 PACKAGE MS8 PACKAGE
S5 PACKAGE
6-LEAD PLASTIC SC70 8-LEAD PLASTIC MSOP
5-LEAD PLASTIC TSOT-23
WITH LATCHING/ADJUSTABLE HYSTERESIS
T = 150C, = 163C/W (NOTE 3)
JMAX JA
T = 150C, = 215C/W (NOTE 3)
JMAX JA
T = 150C, = 270C/W (NOTE 3)
JMAX JA
LTC6752-3 LTC6752-4
TOP VIEW
12 11 10
TOP VIEW
V 1 9 V Q 1 6 V
DD EE
CC
13
V 2 8 LE/HYST
CC V 2 5 V
EE DD
V
EE
V 3 7 SHDN
EE +IN 3 4 IN
4 5 6
SC6 PACKAGE
6-LEAD PLASTIC SC70
WITH SEPARATE INPUT/OUTPUT SUPPLIES
T = 150C, = 270C/W (NOTE 3)
UD PACKAGE JMAX JA
12-LEAD (3mm 3mm) PLASTIC QFN
T = 150C, = 68C/W (NOTE 3)
JMAX JA
EXPOSED PAD (PIN 13) IS V , MUST BE SOLDERED TO PCB
EE
Table 1. Features and Part Numbers
LATCHING/ADJUSTABLE SEPARATE INPUT/ COMPLEMENTARY
PART# HYSTERESIS OUTPUT SUPPLIES SHUTDOWN OUTPUTS PACKAGE OFFERING
LTC6752 TSOT-23-5
LTC6752-1 l SC70-6
l l l
LTC6752-2 MS8
LTC6752-3 l l l l 3mm 3mm QFN
LTC6752-4 l SC70-6
6752fc
2
For more information www.linear.com/LTC6752
+IN Q
NC NC
IN Q
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