Overview

Features and Benefits

  • UltraFast:
    • 4.5ns at 20mV Overdrive
    • 7ns at 5mV Overdrive
  • Low Power: 4.2mA at 3V
  • Separate Input and Output Power Supplies (SO-8 Only)
  • Output Optimized for 3V and 5V Supplies
  • TTL/CMOS Compatible Rail-to-Rail Output
  • Low Power Shutdown Mode: 0.1μA
  • Low Profile (1mm) SOT-23 (ThinSOT) Package

Product Details

The LT1719 is an UltraFast comparator optimized for low voltage operation. The input voltage range extends from 100mV below VEE to 1.2V below VCC. Internal hysteresis makes the LT1719 easy to use even with slow moving input signals. The rail-to-rail outputs directly interface to TTL and CMOS. Alternatively the symmetric output drive can be harnessed for analog applications or for easy translation to other single supply logic levels. A shutdown control allows for reduced power consumption and extended battery life in portable applications.

The LT1719 is available in the SO-8 and 6-lead SOT-23 package. The SO-8 package has separate supplies which allow flexible operation, accomodating separate analog input ranges and output logic levels.

For a dual/quad comparator with similar performance, see the LT1720/LT1721.

Applications

  • High Speed Differential Line Receiver
  • Crystal Oscillator Circuits
  • Level Translators
  • Threshold Detectors/Discriminators
  • Zero-Crossing Detectors
  • High Speed Sampling Circuits
  • Delay Lines

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.

LTspice

Models for the following parts are available in LTspice:

LT1719

Product Recommendations

LT1719 Companion Parts

Recommended Related Parts

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

LT1719 Discussions

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


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