LTC1843 (4)
The LTC1843 is available from Analog Devices at Xecor. Designed for ultralow power dual comparators with a built-in reference, the LTC1843 offers ultralow quiescent current (3.5µA typ), open-drain outputs, wide supply range (2V to 11V single or ±1V to ±5.5V dual), and adjustable hysteresis. Available in 8-SOIC packaging, it is ideal for battery-powered system monitoring, threshold detectors, window comparators, and oscillator circuits. Whether used in portable electronics, industrial monitoring, or precision measurement systems, this series ensures high efficiency, reliability, and scalability for demanding applications. Xecor is an authorized distributor for Analog Devices. Please view our extensive selection of the LTC1843 series below.
| Part Number | Description | Package | Inventory | Add To Bom |
|---|---|---|---|---|
| LTC1843IS8#TRPBF | LTC1843IS8#TRPBF: Dual Comparator with Wide Voltage Range | SOIC-8 | 7,424 | |
| LTC1843IS8#PBF | Ideal for battery-powered systems requiring low power consumption | SOIC-8 | 7,710 | |
| LTC1843CS8#PBF | Low-power comparator for precise signal compariso | SOIC-8 | 4,652 | |
| LTC1843CS8#TRPBF | Ideal for precision measurement and control systems | SOIC-8 | 5,008 |
Key Featrues
Ultralow Quiescent Current (3.5µA Typ): This feature ensures minimal power consumption, making the comparator ideal for battery-powered systems and energy-efficient applications. It extends battery life and reduces the need for frequent recharging or replacement.
Open-Drain Outputs with High Sink Current (>20mA): The open-drain outputs can sink significant current, enabling direct interfacing with various loads or logic circuits. This enhances flexibility in design and simplifies integration into complex systems.
Wide Supply Range (2V to 11V Single, ±1V to ±5.5V Dual): The comparator supports a broad range of supply voltages, making it versatile for use in both single and dual-supply configurations. This adaptability allows it to be used in diverse applications, from low-voltage to higher-voltage systems.
Integrated 1.182V ±1% Reference: The built-in voltage reference provides a stable and precise voltage source, reducing the need for external components. This improves system accuracy and simplifies circuit design, particularly in threshold detection and monitoring applications.
Adjustable Hysteresis and Fast Propagation Delay (12µs): The adjustable hysteresis feature allows for noise immunity and stable switching, while the fast propagation delay ensures quick response times. These characteristics make the comparator suitable for high-speed and noise-sensitive applications, such as oscillator circuits and real-time monitoring systems.
Open-Drain Outputs with High Sink Current (>20mA): The open-drain outputs can sink significant current, enabling direct interfacing with various loads or logic circuits. This enhances flexibility in design and simplifies integration into complex systems.
Wide Supply Range (2V to 11V Single, ±1V to ±5.5V Dual): The comparator supports a broad range of supply voltages, making it versatile for use in both single and dual-supply configurations. This adaptability allows it to be used in diverse applications, from low-voltage to higher-voltage systems.
Integrated 1.182V ±1% Reference: The built-in voltage reference provides a stable and precise voltage source, reducing the need for external components. This improves system accuracy and simplifies circuit design, particularly in threshold detection and monitoring applications.
Adjustable Hysteresis and Fast Propagation Delay (12µs): The adjustable hysteresis feature allows for noise immunity and stable switching, while the fast propagation delay ensures quick response times. These characteristics make the comparator suitable for high-speed and noise-sensitive applications, such as oscillator circuits and real-time monitoring systems.
Applications
Battery-Powered System Monitoring: The LTC1843 is ideal for monitoring battery voltage levels in portable devices. Its ultralow quiescent current of 3.5µA ensures minimal power consumption, while the open-drain outputs and built-in reference provide precise threshold detection, making it suitable for energy-efficient battery management systems in consumer electronics and IoT devices.
Threshold Detectors: The LTC1843 excels in threshold detection applications, such as overvoltage or undervoltage protection circuits. With its wide supply range (2V to 11V) and adjustable hysteresis, it can reliably detect and respond to voltage thresholds in power supplies, automotive systems, and industrial control systems.
Window Comparators: The LTC1843 is perfect for implementing window comparators in safety-critical systems. Its dual comparator design and open-drain outputs allow for easy configuration of upper and lower voltage limits, ensuring accurate monitoring of signals in applications like motor control, environmental monitoring, and medical devices.
Oscillator Circuits: The LTC1843 is well-suited for oscillator circuits in timing and signal generation applications. Its fast propagation delay (12µs) and low power consumption make it an excellent choice for generating precise clock signals in low-power embedded systems, communication devices, and sensor interfaces.
Threshold Detectors: The LTC1843 excels in threshold detection applications, such as overvoltage or undervoltage protection circuits. With its wide supply range (2V to 11V) and adjustable hysteresis, it can reliably detect and respond to voltage thresholds in power supplies, automotive systems, and industrial control systems.
Window Comparators: The LTC1843 is perfect for implementing window comparators in safety-critical systems. Its dual comparator design and open-drain outputs allow for easy configuration of upper and lower voltage limits, ensuring accurate monitoring of signals in applications like motor control, environmental monitoring, and medical devices.
Oscillator Circuits: The LTC1843 is well-suited for oscillator circuits in timing and signal generation applications. Its fast propagation delay (12µs) and low power consumption make it an excellent choice for generating precise clock signals in low-power embedded systems, communication devices, and sensor interfaces.
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