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Features
- Ultralow Quiescent Current: 3.5µA Typ
- Reference Output Drives 0.01µF Capacitor
- Adjustable Hysteresis
- Wide Supply Range:
- Single: 2V to 11V
- Dual: ±1V to ±5.5V
- Input Voltage Range Includes the Negative Supply
- TTL/CMOS Compatible Outputs
- 12µs Propagation Delay with 10mV Overdrive
- No Crowbar Current
- 40mA Continuous Source Current
- Pin Compatible Upgrades for MAX923/933
- 8-Pin DIP and SO-8 Package
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The LTC1442 is an ultralow power dual comparator with a built-in voltage reference. The comparators feature less than 5.7µA supply current over temperature, a 1.182V ±1% reference, programmable hysteresis and TTL/CMOS outputs that sink and source current. The voltage reference output can drive a bypass capacitor of up to 0.01µF without oscillation.
The comparators operate from a single 2V to 11V supply or a dual ±1V to ±5.5V supply. Comparator hysteresis is easily programmed by using two resistors and the HYST pin. Each comparator’s input operates from the negative supply to within 1.3V of the positive supply. The comparator output stage can continuously source up to 40mA. By eliminating the cross-conducting current that normally happens when the comparator changes logic states, the power supply glitches are eliminated.
The LTC1442 is available in an 8-pin PDIP and SO package.
Applications
- Battery-Powered System Monitoring
- Threshold Detectors
- Window Comparators
- Oscillator Circuits
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LTC1442
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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 |
|---|---|---|---|
| LTC1442CN8#PBF |
8-Lead PDIP (Narrow 0.3 Inch)
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| LTC1442CS8#PBF |
8-Lead SOIC (Narrow 0.15 Inch)
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| LTC1442CS8#TRPBF |
8-Lead SOIC (Narrow 0.15 Inch)
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| LTC1442DICE | CHIPS OR DIE |
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| LTC1442IN8#PBF |
8-Lead PDIP (Narrow 0.3 Inch)
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| LTC1442IS8#PBF |
8-Lead SOIC (Narrow 0.15 Inch)
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| LTC1442IS8#TRPBF |
8-Lead SOIC (Narrow 0.15 Inch)
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- LTC1442CN8#PBF
- Pin/Package Drawing
-
8-Lead PDIP (Narrow 0.3 Inch)
- Documentation
-
HTML
Material Declaration
-
HTML
Reliablity Data
- CAD Symbols, Footprints, and 3D Models
-
Ultra Librarian
-
SamacSys
- LTC1442CS8#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
- LTC1442CS8#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
- LTC1442DICE
- Pin/Package Drawing
- CHIPS OR DIE
- Documentation
-
HTML
Material Declaration
-
HTML
Reliablity Data
- CAD Symbols, Footprints, and 3D Models
-
Ultra Librarian
-
SamacSys
- LTC1442IN8#PBF
- Pin/Package Drawing
-
8-Lead PDIP (Narrow 0.3 Inch)
- Documentation
-
HTML
Material Declaration
-
HTML
Reliablity Data
- CAD Symbols, Footprints, and 3D Models
-
Ultra Librarian
-
SamacSys
- LTC1442IS8#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
- LTC1442IS8#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
Oct 11, 2022
- 22_0241
Epoxy Change from Henkel 8290 to 8290A for PDIP Package
LTC1442CN8#PBF
PRODUCTION
LTC1442IN8#PBF
PRODUCTION
Aug 6, 2022
- 22_0172
Laser Top Mark Conversion for PDIP Packages Assembled in ADPG [PNG]
LTC1442CN8#PBF
PRODUCTION
LTC1442IN8#PBF
PRODUCTION
Dec 14, 2023
- 22_0255
Epoxy Change from Henkel 8290 to 8290A for 8-Lead SOIC Package (PCN part 2 of 2)
LTC1442CS8#PBF
PRODUCTION
LTC1442CS8#TRPBF
PRODUCTION
LTC1442IS8#PBF
PRODUCTION
LTC1442IS8#TRPBF
PRODUCTION
Jun 16, 2021
- 21_0026
Laser Top Mark for 8SOICN Assembled in ADPG, UTL and CRM
LTC1442CS8#PBF
PRODUCTION
LTC1442CS8#TRPBF
PRODUCTION
LTC1442IS8#PBF
PRODUCTION
LTC1442IS8#TRPBF
PRODUCTION
Filter by Model
Part Models
Product Lifecycle
PCN
Oct 11, 2022
- 22_0241
Epoxy Change from Henkel 8290 to 8290A for PDIP Package
LTC1442CN8#PBF
PRODUCTION
LTC1442IN8#PBF
PRODUCTION
Aug 6, 2022
- 22_0172
Laser Top Mark Conversion for PDIP Packages Assembled in ADPG [PNG]
LTC1442CN8#PBF
PRODUCTION
LTC1442IN8#PBF
PRODUCTION
Dec 14, 2023
- 22_0255
Epoxy Change from Henkel 8290 to 8290A for 8-Lead SOIC Package (PCN part 2 of 2)
LTC1442CS8#PBF
PRODUCTION
LTC1442CS8#TRPBF
PRODUCTION
LTC1442IS8#PBF
PRODUCTION
LTC1442IS8#TRPBF
PRODUCTION
Jun 16, 2021
- 21_0026
Laser Top Mark for 8SOICN Assembled in ADPG, UTL and CRM
LTC1442CS8#PBF
PRODUCTION
LTC1442CS8#TRPBF
PRODUCTION
LTC1442IS8#PBF
PRODUCTION
LTC1442IS8#TRPBF
PRODUCTION
Software & Part Ecosystem
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
