Overview

Features and Benefits

  • Very High Toggle Rate: 280MHz
  • Low Propagation Delay: 2.9ns
  • Rail-to-Rail Inputs Extend Beyond Both Rails
  • Output Current Capability: ±22mA
  • Low Quiescent Current: 4.5mA
  • Features within the LTC6752 Family:
    • 2.45V to 5.25V Input Supply and 1.71V to 3.5V Output Supply (Separate Supply Option)
    • 2.45V to 3.5V Supply (Single Supply Option)
    • Shutdown Pin for Reduced Power
    • Output Latch and Adjustable Hysteresis
    • Complementary Outputs
  • Packages: TSOT-23, SC70, MSOP, 3mm × 3mm QFN
  • Direct Replacement for ADCMP60X Family
  • Fully Specified from –55°C to 125°C

Product Details

The LTC6752 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, adjustable 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.

Applications

  • Clock and Data Recovery
  • Level Shifting
  • High Speed Data Acquisition Systems
  • Window Comparators
  • High Speed Line Receivers
  • Fast Crystal Oscillators
  • Time of Flight Measurements
  • Time Domain Reflectometry

Product Lifecycle icon-recommended Production

At least one model within this product family is in production and available for purchase. The product is appropriate for new designs but newer alternatives may exist.

Tools & Simulations

LTspice

LTspice® is a powerful, fast and free simulation software, schematic capture and waveform viewer with enhancements and models for improving the simulation of analog circuits.

To launch ready-to-run LTspice demonstration circuits for this part:

Step 1: Download and install LTspice on your computer.

Step 2: Click on the link in the section below to download a demonstration circuit.

Step 3: If LTspice does not automatically open after clicking the link below, you can instead run the simulation by right clicking on the link and selecting “Save Target As.” After saving the file to your computer, start LTspice and open the demonstration circuit by selecting ‘Open’ from the ‘File’ menu.

LTspice

Models for the following parts are available in LTspice:

LTC6752
LTC6752-2
LTC6752-3

Design Resources

ADI has always placed the highest emphasis on delivering products that meet the maximum levels of quality and reliability. We achieve this by incorporating quality and reliability checks in every scope of product and process design, and in the manufacturing process as well.  "Zero defects" for shipped products is always our goal.

Discussions

LTC6752 Didn't find what you were looking for? Ask the Analog community »

Sample & Buy

Sample & Buy functionality exists in desktop site
Back
Check Inventory


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 Analog Devices, Inc. sales office or authorized distributor. Pricing displayed for Evaluation Boards and Kits is based on 1-piece pricing.


Price Table Help