LT1715 - 4ns, 150MHz Dual Comparator with Independent Input/Output Supplies


  • UltraFast: 4ns at 20mV Overdrive
  • 150MHz Toggle Frequency
  • Separate Input and Output Power Supplies
  • Low Power: 4.6mA per Comparator at 3V
  • Pinout Optimized for High Speed Use
  • Output Optimized for 3V and 5V Supplies
  • TTL/CMOS Compatible Rail-to-Rail Output
  • Input Voltage Range Extends 100mV Below Negative Rail
  • Internal Hysteresis with Specified Limits
  • Specified for –40°C to 125°C Temperature Range
  • Available in the 10-pin MSOP Package

Typical Application

LT1715 Typical Application
LT1715 Typical Application


The LT®1715 is an UltraFast™ dual comparator optimized for low voltage operation. Separate supplies allow independent analog input ranges and output logic levels with no loss of performance. The input voltage range extends from 100mV below VEE to 1.2V below VCC.Internal hysteresis makes the LT1715 easy to use even with slow moving input signals. The rail-to-rail outputs directly interface to TTL and CMOS. The symmetric output drive results in similar rise and fall times that can be harnessed for analog applications or for easy translation to other single supply logic levels.

The LT1715 is available in the 10-pin MSOP package. The pinout of the LT1715 minimizes parasitic effects by placing the most sensitive inputs away from the outputs, shielded by the power rails.

For a dual/quad single supply comparator with similar propagation delay, see the LT1720/LT1721. For a single comparator with similar propagation delay,see the LT1719.


CAD Symbols and Footprints: The downloadable Zip file below contains the schematic symbol and PCB footprints.

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

Part Number Package Code Temp Package
LT1715CMS#PBF MS-10 MS C 05-08-1661 Yes
LT1715CMS#TRPBF MS-10 MS C 05-08-1661 Yes
LT1715HMS#PBF MS-10 MS H 05-08-1661 Yes
LT1715HMS#TRPBF MS-10 MS H 05-08-1661 Yes
LT1715IMS#PBF MS-10 MS I 05-08-1661 Yes
LT1715IMS#TRPBF MS-10 MS I 05-08-1661 Yes

LT1715 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
LT1715CMS#PBF MS-10 C $4.00 $3.35 Yes
LT1715CMS#TRPBF MS-10 C $3.41 Yes
LT1715HMS#PBF MS-10 H $5.69 $4.07 Yes
LT1715HMS#TRPBF MS-10 H $5.75 $4.13 Yes
LT1715IMS#PBF MS-10 I $4.50 $3.75 Yes
LT1715IMS#TRPBF MS-10 I $3.81 Yes
Buy NowRequest Samples
* 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


  • High Speed Differential Line Receivers
  • Level Translators
  • Window Comparators
  • Crystal Oscillator Circuits
  • Threshold Detectors/Discriminators
  • High Speed Sampling Circuits
  • Delay Lines

Product Notifications

Please login to your MyLinear account for notifications of datasheet updates, new document releases and LTspice model announcements for your favorite products. If you do not have a MyLinear account you may Sign Up Now.

Forgot your password? Click here.
Need help? Email with questions and comments.

Design Tools


LTspice® software is a powerful, fast and free simulation tool, schematic capture and waveform viewer with enhancements and models for improving the simulation of switching regulators. Click here to download LTspice

To launch a ready to run LTspice demonstration circuit for this part:

  • Step 1: If you have not installed LTspice on this computer, download and install LTspice
  • Step 2: Once LTspice is installed, click on the link(s) below to launch the simulation
  • Step 3: If LTspice does not automatically open after clicking the link above, 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

To explore other ready to run LTspice demonstration circuits, please visit our Demo Circuits Collection.

Models for the following parts are available in LTspice:

Technical Support