LTC6754 -High Speed Rail-to-Rail Input Comparator with LVDS Compatible Outputs

Features

    • Low Propagation Delay: 1.8ns Typ.
    • Low Overdrive Dispersion: 1ns Typ.
      (10mV to 125mV Overdrive)
    • High Toggle Rate: 890Mbps Typ.
    • LVDS Compatible Output Stage
    • Rail-to-Rail Inputs Extend Beyond Both Rails
    • Low Quiescent Current: 13.4mA
    • Supply Range: 2.4V to 5.25V
    • Features within the LTC6754 Family:
      Separate Input and Output Supplies
      Shutdown Pin for Reduced Power
      Output Latch and Adjustable Hysteresis
      SC70 and 3mm × 3mm QFN Packages

Typical Application

LTC6754 Typical Application
LTC6754 Typical Application

Description

The LTC®6754 is a high speed rail-to-rail comparator with LVDS compatible outputs. The LTC6754 exhibits 1.8ns of propagation delay, only 1ns of dispersion (10mV to 125mV overdrive) and a toggle rate up to 890Mbps.

The LTC6754 has rail-to-rail inputs, and will operate from a 2.4V to 5.25V supply. For the QFN package, the LVDS output is operated with a separate supply, providing isolation between input and output circuitry, and allowing for logic level translation.

In shutdown mode, power is reduced from 13.4mA to under 1.1mA, and the comparator can wake up in 120ns.

The LTC6754 includes 4.5mV of hysteresis to minimize instability. For the QFN package, a separate pin is available to set the hysteresis from 0mV (off) up to 40mV. The QFN version also features output latching to provide the ability to quickly capture the state of the comparator.

The dispersion of only 1ns combined with excellent propagation delay of 1.8ns makes the device an excellent choice for timing critical applications. Similarly, the 890Mbps toggle rate and low jitter of 1.5psRMS (200mVP–P, 245.76MHz input) make the LTC6754 ideally suited for high frequency line driver and clock recovery circuits.

Packaging

For complete and up to date package information and drawings, please refer to our packaging page

Part Number Package Code Temp Package
Drawing
RoHS
LTC6754HSC6#PBF SC-70 SC6 H 05-08-1638 Yes
LTC6754HSC6#TRMPBF SC-70 SC6 H 05-08-1638 Yes
LTC6754HSC6#TRPBF SC-70 SC6 H 05-08-1638 Yes
LTC6754HUD#PBF 3x3 QFN-12 UD H 05-08-1855 Yes
LTC6754HUD#TRPBF 3x3 QFN-12 UD H 05-08-1855 Yes
LTC6754ISC6#PBF SC-70 SC6 I 05-08-1638 Yes
LTC6754ISC6#TRMPBF SC-70 SC6 I 05-08-1638 Yes
LTC6754ISC6#TRPBF SC-70 SC6 I 05-08-1638 Yes
LTC6754IUD#PBF 3x3 QFN-12 UD I 05-08-1855 Yes
LTC6754IUD#TRPBF 3x3 QFN-12 UD I 05-08-1855 Yes


LTC6754 Package Drawing
LTC6754 Package Drawing

Order Info

  • Part numbers ending in PBF are lead free. Solder plated terminal finish (SnPb) versions are non-standard and special terms and conditions and pricing applies if available. Please contact LTC marketing for information.
  • Part numbers containing TR or TRM are shipped in tape and reel or 500 unit mini tape and reel, respectively
  • Please refer to our general ordering information or the product datasheet for more details

Package Variations and Pricing

Part Number Package Temp Price
(1-99)
Price
(1k)*
RoHS
LTC6754HSC6#PBF SC-70 H $3.17 Yes
LTC6754HSC6#TRMPBF SC-70 H $3.17 $2.32 Yes
LTC6754HSC6#TRPBF SC-70 H $3.17 $2.27 Yes
LTC6754HUD#PBF 3x3 QFN-12 H $3.43 $2.44 Yes
LTC6754HUD#TRPBF 3x3 QFN-12 H $3.49 $2.50 Yes
LTC6754ISC6#PBF SC-70 I $2.75 Yes
LTC6754ISC6#TRMPBF SC-70 I $2.75 $2.03 Yes
LTC6754ISC6#TRPBF SC-70 I $2.75 $1.98 Yes
LTC6754IUD#PBF 3x3 QFN-12 I $2.97 $2.12 Yes
LTC6754IUD#TRPBF 3x3 QFN-12 I $3.03 $2.18 Yes
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* The USA list pricing shown is for BUDGETARY USE ONLY, shown in United States dollars (FOB USA per unit for the stated volume), and is subject to change. International prices may differ due to local duties, taxes, fees and exchange rates. For volume-specific price or delivery quotes, please contact your local Linear Technology sales office or authorized distributor.

Demo Boards

Linear Technology offers many demo boards free of charge to qualified customers. Contact your local sales office or distributor to inquire about a demo board. Certain demo boards are also available for sale via credit card on this website. Demo boards are for evaluation purposes only. It remains the customer’s responsibility to verify proper and reliable operation in the actual end application.

Click here to view our complete list of demo boards

Applications

  • Clock and Data Recovery
  • Level Translation
  • High Speed Data Acquisition Systems
  • Window Comparators
  • High Speed Line Receivers
  • Time Domain Reflectometry
  • Time of Flight Measurements
  • Cable Drivers

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Design Tools

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Models for the following parts are available in LTspice:
LTC6754

Technical Support