LT1719
4.5ns Single/Dual Supply 3V/5V Comparator with Rail-to-Rail Output
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Features
- 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
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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
Ask a Question
Submit your question below and we will return the best answer from ADI’s knowledge database:
Search
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Support
Analog Devices Support Portal is a one-stop shop to answer all your ADI questions.
Visit the ADI Support Page
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LT1719
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Product Selector Card 1
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. View our quality and reliability program and certifications for more information.
| Part Model | Pin/Package Drawing | Documentation | CAD Symbols, Footprints, and 3D Models |
|---|---|---|---|
| LT1719CS6#TRMPBF |
6-Lead TSOT-23
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| LT1719CS6#TRPBF |
6-Lead TSOT-23
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| LT1719CS8#PBF |
8-Lead SOIC (Narrow 0.15 Inch)
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| LT1719CS8#TRPBF |
8-Lead SOIC (Narrow 0.15 Inch)
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| LT1719IS6#TRMPBF |
6-Lead TSOT-23
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| LT1719IS6#TRPBF |
6-Lead TSOT-23
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| LT1719IS8#PBF |
8-Lead SOIC (Narrow 0.15 Inch)
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| LT1719IS8#TRPBF |
8-Lead SOIC (Narrow 0.15 Inch)
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- LT1719CS6#TRMPBF
- Pin/Package Drawing
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6-Lead TSOT-23
- Documentation
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HTML
Material Declaration
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HTML
Reliablity Data
- CAD Symbols, Footprints, and 3D Models
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Ultra Librarian
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SamacSys
- LT1719CS6#TRPBF
- Pin/Package Drawing
-
6-Lead TSOT-23
- Documentation
-
HTML
Material Declaration
-
HTML
Reliablity Data
- CAD Symbols, Footprints, and 3D Models
-
Ultra Librarian
-
SamacSys
- LT1719CS8#PBF
- Pin/Package Drawing
-
8-Lead SOIC (Narrow 0.15 Inch)
- Documentation
-
HTML
Material Declaration
-
HTML
Reliablity Data
- CAD Symbols, Footprints, and 3D Models
-
Ultra Librarian
-
SamacSys
- LT1719CS8#TRPBF
- Pin/Package Drawing
-
8-Lead SOIC (Narrow 0.15 Inch)
- Documentation
-
HTML
Material Declaration
-
HTML
Reliablity Data
- CAD Symbols, Footprints, and 3D Models
-
Ultra Librarian
-
SamacSys
- LT1719IS6#TRMPBF
- Pin/Package Drawing
-
6-Lead TSOT-23
- Documentation
-
HTML
Material Declaration
-
HTML
Reliablity Data
- CAD Symbols, Footprints, and 3D Models
-
Ultra Librarian
-
SamacSys
- LT1719IS6#TRPBF
- Pin/Package Drawing
-
6-Lead TSOT-23
- Documentation
-
HTML
Material Declaration
-
HTML
Reliablity Data
- CAD Symbols, Footprints, and 3D Models
-
Ultra Librarian
-
SamacSys
- LT1719IS8#PBF
- Pin/Package Drawing
-
8-Lead SOIC (Narrow 0.15 Inch)
- Documentation
-
HTML
Material Declaration
-
HTML
Reliablity Data
- CAD Symbols, Footprints, and 3D Models
-
Ultra Librarian
-
SamacSys
- LT1719IS8#TRPBF
- Pin/Package Drawing
-
8-Lead SOIC (Narrow 0.15 Inch)
- Documentation
-
HTML
Material Declaration
-
HTML
Reliablity Data
- CAD Symbols, Footprints, and 3D Models
-
Ultra Librarian
-
SamacSys
Filter by Model
Part Models
Product Lifecycle
PCN
Nov 14, 2022
- 22_0254
Epoxy Change from Henkel 8290 to 8290A for 8-Lead SOIC Package (PCN part 1 of 2)
LT1719CS8#PBF
PRODUCTION
LT1719CS8#TRPBF
PRODUCTION
LT1719IS8#PBF
PRODUCTION
LT1719IS8#TRPBF
PRODUCTION
Jun 11, 2021
- 21_0060
Laser Top Mark for 8SOICN Assembled in ADPG, UTL and CRM
LT1719CS8#PBF
PRODUCTION
LT1719CS8#TRPBF
PRODUCTION
LT1719IS8#PBF
PRODUCTION
LT1719IS8#TRPBF
PRODUCTION
Filter by Model
Part Models
Product Lifecycle
PCN
Nov 14, 2022
- 22_0254
Epoxy Change from Henkel 8290 to 8290A for 8-Lead SOIC Package (PCN part 1 of 2)
LT1719CS8#PBF
PRODUCTION
LT1719CS8#TRPBF
PRODUCTION
LT1719IS8#PBF
PRODUCTION
LT1719IS8#TRPBF
PRODUCTION
Jun 11, 2021
- 21_0060
Laser Top Mark for 8SOICN Assembled in ADPG, UTL and CRM
LT1719CS8#PBF
PRODUCTION
LT1719CS8#TRPBF
PRODUCTION
LT1719IS8#PBF
PRODUCTION
LT1719IS8#TRPBF
PRODUCTION
Software & Part Ecosystem
| Parts | Product Life Cycle | Description | ||
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High Speed Comparators (<100ns Propagation Delay)1 |
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Low Phase Noise, Dual Output Buffer/Driver/Logic Converter |
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Tools & Simulations 1
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.
Lt Spice
