LT1719 - 4.5ns Single/Dual Supply 3V/5V Comparator with Rail-to-Rail Output
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 Profi le (1mm) SOT-23 (ThinSOT™) Package
Typical Application
Description
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.
Packaging
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 Drawing |
RoHS |
|---|---|---|---|---|---|
| LT1719CS6#PBF | SOT-23 | S6 | C | 05-08-1636 | Yes |
| LT1719CS6#TRMPBF | SOT-23 | S6 | C | 05-08-1636 | Yes |
| LT1719CS6#TRPBF | SOT-23 | S6 | C | 05-08-1636 | Yes |
| LT1719CS8#PBF | SO-8 | S8 | C | 05-08-1610 (S8) | Yes |
| LT1719CS8#TRPBF | SO-8 | S8 | C | 05-08-1610 (S8) | Yes |
| LT1719IS6#PBF | SOT-23 | S6 | I | 05-08-1636 | Yes |
| LT1719IS6#TRMPBF | SOT-23 | S6 | I | 05-08-1636 | Yes |
| LT1719IS6#TRPBF | SOT-23 | S6 | I | 05-08-1636 | Yes |
| LT1719IS8#PBF | SO-8 | S8 | I | 05-08-1610 (S8) | Yes |
| LT1719IS8#TRPBF | SO-8 | S8 | I | 05-08-1610 (S8) | Yes |
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 | |
|---|---|---|---|---|---|---|
| LT1719CS6#PBF | SOT-23 | C | $1.77 | Yes | ||
| LT1719CS6#TRMPBF | SOT-23 | C | $1.77 | $1.42 | Yes | |
| LT1719CS6#TRPBF | SOT-23 | C | $1.77 | $1.40 | Yes | |
| LT1719CS8#PBF | SO-8 | C | $2.30 | $1.95 | Yes | |
| LT1719CS8#TRPBF | SO-8 | C | $2.01 | Yes | ||
| LT1719IS6#PBF | SOT-23 | I | $1.92 | Yes | ||
| LT1719IS6#TRMPBF | SOT-23 | I | $1.92 | $1.63 | Yes | |
| LT1719IS6#TRPBF | SOT-23 | I | $1.92 | $1.61 | Yes | |
| LT1719IS8#PBF | SO-8 | I | $2.55 | $2.15 | Yes | |
| LT1719IS8#TRPBF | SO-8 | I | $2.21 | Yes | ||
| Buy Now • Request Samples | ||||||
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
- High Speed Differential Line Receiver
- Crystal Oscillator Circuits
- Level Translators
- Threshold Detectors/Discriminators
- Zero-Crossing Detectors
- High Speed Sampling Circuits
- Delay Lines
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- LT1720 - Dual, 4.5ns, Single Supply 3V/5V Comparators with Rail-to-Rail Outputs
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- LT1716 - SOT-23, 44V, Over-The-Top, Micropower, Precision Rail-to-Rail Comparator
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Design Tools
LTspice
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
Models for the following parts are available in LTspice:
LT1719
Technical Support
- For immediate technical assistance, contact your local sales office or distributor or call 1-800-4-LINEAR (US customers only) or 408-432-1900.
- For less urgent requests, please complete our Technical Support Request Form. Please allow 2-3 business days for reply.
