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LTC6752-3 Datasheet

2.9ns Comparator

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LTC6752/LTC6752-1/
LTC6752-2/LTC6752-3/
LTC6752-4
Features
280MHz, 2.9ns Comparator
Family with Rail-to-Rail Inputs
and CMOS Outputs
Description
nn Very High Toggle Rate: 280MHz
nn Low Propagation Delay: 2.9ns
nn Rail-to-Rail Inputs Extend Beyond Both Rails
nn Output Current Capability: ±22mA
nn Low Quiescent Current: 4.5mA
nn Features within the LTC6752 Family:
nn 2.45V to 5.25V Input Supply and 1.71V to 3.5V
Output Supply (Separate Supply Option)
nn 2.45V to 3.5V Supply (Single Supply Option)
nn Shutdown Pin for Reduced Power
nn Output Latch and Adjustable Hysteresis
nn Complementary Outputs
nn Packages: TSOT-23, SC70, MSOP, 3mm × 3mm QFN
nn Direct Replacement for ADCMP60X Family
nn Fully Specified from –55°C to 125°C
Applications
nn Clock and Data Recovery
nn Level Shifting
nn High Speed Data Acquisition Systems
nn Window Comparators
nn High Speed Line Receivers
nn Fast Crystal Oscillators
nn Time of Flight Measurements
nn Time Domain Reflectometry
The LTC®6752 is a family of very high speed comparators
capable of supporting toggle rates up to 280MHz. These
comparators exhibit low propagation delays of 2.9ns, and
fast rise/fall times of 1.2ns. There are a total of 5 members
in the LTC6752 family, with different options for separate
input and output supplies, shutdown, output latch, adjust-
able hysteresis, complementary outputs, and package.
The LTC6752 comparators have rail-to-rail inputs that
operate from 2.45V, up to 3.5V or 5.25V, depending on
the option. The outputs are CMOS and the separate supply
options can operate down to 1.71V, allowing for directly
interfacing to 1.8V logic devices.
The low propagation delay of only 2.9ns combined with
low dispersion of only 1.8ns (10mV to 125mV overdrive
variation) makes these comparators an excellent choice
for critical timing applications. Similarly, the fast toggle
rate and the low jitter of 4.5ps RMS (100mVP-P, 100MHz
input) make the LTC6752 family ideally suited for high
frequency line driver and clock recovery circuits.
L, LT, LTC, LTM, Linear Technology and the Linear logo are registered trademarks of Analog
Devices, Inc. All other trademarks are the property of their respective owners.
Typical Application
High Speed Differential Line Receiver with Excellent
Common Mode Rejection
SMALL DIFFERENTIAL SIGNAL WITH
LARGE COMMON MODE COMPONENT
VCC = 5V
+IN +
VDD = 2.7V
LTC6752-2
Q
–IN
VEE
6752 T01a
500mV/DIV
For more information www.linear.com/LTC6752
Q –IN +IN
50ns/DIV
6752 T01a
6752fc
1


Analog Devices Semiconductor Electronic Components Datasheet

LTC6752-3 Datasheet

2.9ns Comparator

No Preview Available !

LTC6752/LTC6752-1/
LTC6752-2/LTC6752-3/
LTC6752-4
Absolute Maximum Ratings
(Note 1)
Total Supply Voltage (VCC to VEE)
(LTC6752-2/LTC6752-3/LTC6752-4).....................5.5V
(LTC6752/LTC6752-1)...........................................3.6V
Total Supply Voltage (VDD to VEE).............................3.6V
Input Current (+IN, –IN, SHDN, LE/HYST)
(Note 2)................................................................. ±10mA
Output Current (Q, Q) (Note 3)............................. ±50mA
Specified Temperature Range (Note 4)
LTC6752I..............................................–40°C to 85°C
LTC6752H........................................... –40°C to 125°C
LTC6752MP........................................ –55°C to 125°C
Storage Temperature Range................... –65°C to 125°C
Maximum Junction Temperature (Note 3)............. 150°C
Lead Temperature Soldering (10s)......................... 300°C
Pin Configuration
LTC6752
TOP VIEW
Q1
VEE 2
+IN 3
5 VCC
4 –IN
S5 PACKAGE
5-LEAD PLASTIC TSOT-23
TJMAX = 150°C, JA = 215°C/W (NOTE 3)
LTC6752-3
TOP VIEW
LTC6752-1
TOP VIEW
Q1
VEE 2
+IN 3
6 VCC
5 LE/HYST
4 –IN
SC6 PACKAGE
6-LEAD PLASTIC SC70
WITH LATCHING/ADJUSTABLE HYSTERESIS
TJMAX = 150°C, θJA = 270°C/W (NOTE 3)
LTC6752-4
LTC6752-2
VCC 1
+IN 2
–IN 3
SHDN 4
TOP VIEW
8 VDD
7Q
6 VEE
5 LE/HYST
MS8 PACKAGE
8-LEAD PLASTIC MSOP
TJMAX = 150°C, θJA = 163°C/W (NOTE 3)
VDD 1
VCC 2
VEE 3
12 11 10
13
VEE
456
9 VEE
8 LE/HYST
7 SHDN
UD PACKAGE
12-LEAD (3mm × 3mm) PLASTIC QFN
TJMAX = 150°C, θJA = 68°C/W (NOTE 3)
EXPOSED PAD (PIN 13) IS VEE, MUST BE SOLDERED TO PCB
TOP VIEW
Q1
VEE 2
+IN 3
6 VCC
5 VDD
4 –IN
SC6 PACKAGE
6-LEAD PLASTIC SC70
WITH SEPARATE INPUT/OUTPUT SUPPLIES
TJMAX = 150°C, θJA = 270°C/W (NOTE 3)
Table 1. Features and Part Numbers
PART#
LATCHING/ADJUSTABLE
HYSTERESIS
LTC6752
LTC6752-1
l
LTC6752-2
l
LTC6752-3
l
LTC6752-4
SEPARATE INPUT/
OUTPUT SUPPLIES
l
l
l
SHUTDOWN
l
l
COMPLEMENTARY
OUTPUTS
l
PACKAGE OFFERING
TSOT-23-5
SC70-6
MS8
3mm × 3mm QFN
SC70-6
6752fc
2 For more information www.linear.com/LTC6752


Part Number LTC6752-3
Description 2.9ns Comparator
Maker Analog Devices
Total Page 30 Pages
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