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Features
- Ultralow Quiescent Current: 3.5µA Typ
- Open-Drain Outputs Typically Sink Greater Than 20mA
- Wide Supply Range: (LTC1841)
- Single: 2V to 11V
- Dual: ±1V to ±5.5V
- Input Voltage Range Includes the Negative Supply
- Reference Output Drives 0.01µF Capacitor
- Adjustable Hysteresis
- 12µs Propagation Delay with 10mV Overdrive
- No Current Spike When Switching
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The LTC1843 is an ultralow power dual comparator with a built-in reference. The comparators feature less than 5.7µA supply current over temperature, a 1.182V ±1% reference, programmable hysteresis and open-drain outputs that sink current. The reference output can drive a bypass capacitor of up to 0.01µF without oscillation.
The LTC1843 operate from a single 2.5V to 11V supply or a dual ±1.25V to ±5.5V supply. Hysteresis is easily programmed by using two resistors and the HYST pin. The comparator inputs operate from the negative supply to within 1.3V of the positive supply. The comparator outputs can typically sink greater than 20mA. By eliminating the cross-conduction current that normally happens when the comparators change logic states, power supply glitches are eliminated.
The LTC1843 is available in an SO-8 package.
Applications
- Battery-Powered System Monitoring
- Threshold Detectors
- Window Comparators
- Oscillator Circuits
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LTC1843
Documentation
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Documentation
Data Sheet 1
Reliability Data 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 |
|---|---|---|---|
| LTC1843CS8#PBF |
8-Lead SOIC (Narrow 0.15 Inch)
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| LTC1843CS8#TRPBF |
8-Lead SOIC (Narrow 0.15 Inch)
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| LTC1843IS8#PBF |
8-Lead SOIC (Narrow 0.15 Inch)
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| LTC1843IS8#TRPBF |
8-Lead SOIC (Narrow 0.15 Inch)
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- LTC1843CS8#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
- LTC1843CS8#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
- LTC1843IS8#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
- LTC1843IS8#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
Dec 14, 2023
- 22_0255
Epoxy Change from Henkel 8290 to 8290A for 8-Lead SOIC Package (PCN part 2 of 2)
LTC1843CS8#PBF
PRODUCTION
LTC1843CS8#TRPBF
PRODUCTION
LTC1843IS8#PBF
PRODUCTION
LTC1843IS8#TRPBF
PRODUCTION
Jun 16, 2021
- 21_0026
Laser Top Mark for 8SOICN Assembled in ADPG, UTL and CRM
LTC1843CS8#PBF
PRODUCTION
LTC1843CS8#TRPBF
PRODUCTION
LTC1843IS8#PBF
PRODUCTION
LTC1843IS8#TRPBF
PRODUCTION
Filter by Model
Part Models
Product Lifecycle
PCN
Dec 14, 2023
- 22_0255
Epoxy Change from Henkel 8290 to 8290A for 8-Lead SOIC Package (PCN part 2 of 2)
LTC1843CS8#PBF
PRODUCTION
LTC1843CS8#TRPBF
PRODUCTION
LTC1843IS8#PBF
PRODUCTION
LTC1843IS8#TRPBF
PRODUCTION
Jun 16, 2021
- 21_0026
Laser Top Mark for 8SOICN Assembled in ADPG, UTL and CRM
LTC1843CS8#PBF
PRODUCTION
LTC1843CS8#TRPBF
PRODUCTION
LTC1843IS8#PBF
PRODUCTION
LTC1843IS8#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
