onsemi

KA393A

KA393A Description

The KA393A is a general-purpose linear comparator designed by onsemi. This device is housed in a through-hole package and is available in an 8DIP configuration. Despite being marked as obsolete, the KA393A remains a reliable choice for applications requiring a robust and versatile comparator. It features a wide supply voltage range of 2V to 36V for single supply and ±1V to ±18V for dual supply configurations. The KA393A also boasts a low quiescent current of up to 2.5mA and an input bias current of no more than 0.25µA at 5V. With a maximum input offset voltage of 2mV at 5V, this comparator ensures high precision in signal comparison tasks. The device operates within a temperature range of 0°C to 70°C, making it suitable for a variety of industrial and consumer applications. The KA393A is REACH unaffected and RoHS3 compliant, ensuring it meets environmental and safety standards.

KA393A Features

• Wide Supply Voltage Range: The KA393A supports a broad supply voltage range, from 2V to 36V for single supply and ±1V to ±18V for dual supply. This flexibility allows it to be used in a wide array of electronic systems with varying power requirements.
• Low Quiescent Current: With a maximum quiescent current of 2.5mA, the KA393A is energy-efficient, making it ideal for battery-powered and low-power applications.
• Low Input Bias Current: The maximum input bias current of 0.25µA at 5V ensures minimal loading on the input signal sources, preserving signal integrity.
• Low Input Offset Voltage: A maximum input offset voltage of 2mV at 5V guarantees high accuracy in signal comparison, making it suitable for precision applications.
• General-Purpose Design: As a general-purpose comparator, the KA393A is versatile and can be used in a variety of applications, from simple threshold detection to complex signal processing circuits.
• Through-Hole Mounting: The through-hole package type ensures reliable mechanical stability and ease of integration into printed circuit boards (PCBs).
• Moisture Sensitivity Level: With an MSL rating of 1 (Unlimited), the KA393A is suitable for use in environments with varying humidity levels without requiring special handling or storage conditions.
• Environmental Compliance: The KA393A is REACH unaffected and RoHS3 compliant, ensuring it meets stringent environmental and safety regulations.

KA393A Applications

The KA393A is well-suited for a variety of applications due to its general-purpose design and robust performance characteristics. Some specific use cases include:

• Threshold Detection: The KA393A can be used to detect when a signal crosses a specific voltage threshold, making it ideal for applications such as battery level indicators, temperature sensors, and voltage monitors.
• Signal Processing: In signal processing circuits, the KA393A can be employed to compare and process analog signals, ensuring accurate and reliable performance.
• Consumer Electronics: Due to its wide operating voltage range and low power consumption, the KA393A is suitable for consumer electronics where power efficiency and reliability are critical.
• Industrial Control Systems: The KA393A's robustness and wide operating temperature range make it a reliable choice for industrial control systems, where it can be used for monitoring and controlling various parameters.
• Automotive Applications: The KA393A's ability to operate within a wide temperature range and its low power consumption make it suitable for automotive applications, such as engine control units and sensor interfaces.

Conclusion of KA393A

The KA393A is a versatile and reliable general-purpose linear comparator that offers a wide range of features and benefits. Its wide supply voltage range, low quiescent current, and low input bias current make it suitable for a variety of applications, from simple threshold detection to complex signal processing circuits. Despite being marked as obsolete, the KA393A remains a robust and reliable choice for designers and engineers looking for a high-performance comparator. Its environmental compliance and mechanical stability further enhance its appeal in the electronics industry.