LTC6752/LTC6752-1/

LTC6752-2/LTC6752-3/

LTC6752-4

1

6752fc

For more information www.linear.com/LTC6752

Typical applicaTion

FeaTures

DescripTion

280MHz, 2.9ns Comparator

Family with Rail-to-Rail Inputs

and CMOS Outputs

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

input) make the LTC6752 family ideally suited for high

frequency line driver and clock recovery circuits.

applicaTions

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Very High Toggle Rate: 280MHz

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Low Propagation Delay: 2.9ns

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Rail-to-Rail Inputs Extend Beyond Both Rails

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Output Current Capability: ±22mA

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Low Quiescent Current: 4.5mA

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Features within the LTC6752 Family:

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2.45V to 5.25V Input Supply and 1.71V to 3.5V

Output Supply (Separate Supply Option)

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2.45V to 3.5V Supply (Single Supply Option)

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Shutdown Pin for Reduced Power

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Output Latch and Adjustable Hysteresis

n

Complementary Outputs

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Packages: TSOT-23, SC70, MSOP, 3mm × 3mm QFN

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Direct Replacement for ADCMP60X Family

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Fully Specified from –55°C to 125°C

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Clock and Data Recovery

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Level Shifting

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High Speed Data Acquisition Systems

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Window Comparators

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High Speed Line Receivers

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Fast Crystal Oscillators

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Time of Flight Measurements

n

Time Domain Reflectometry

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.

500mV/DIV

–IN +IN

Q

50ns/DIV

6752 T01a

High Speed Differential Line Receiver with Excellent

Common Mode Rejection

–

+

Q

6752 T01a

SMALL DIFFERENTIAL SIGNAL WITH

LARGE COMMON MODE COMPONENT

+IN

–IN

LTC6752-2