onsemi

KA2903D

KA2903D Description

The KA2903D is an integrated circuit (IC) comparator designed by onsemi, a leading manufacturer in the semiconductor industry. This differential comparator is housed in an 8SOIC package, making it suitable for surface mount applications. Despite its obsolete status, the KA2903D remains a reliable choice for specific applications due to its robust performance and versatile operating conditions.

KA2903D Features

• Differential Comparator Type: The KA2903D is designed as a differential comparator, which allows it to compare two input signals and provide an output based on their difference. This feature is particularly useful in applications where precise signal comparison is required.
• Wide Supply Voltage Range: The comparator operates within a wide supply voltage range of 2V to 36V for single supply and ±1V to ±18V for dual supply. This flexibility makes it suitable for a variety of power supply configurations.
• Low Input Offset Voltage: With a maximum input offset voltage of 7mV at 5V, the KA2903D ensures high accuracy in signal comparison. This low offset voltage is crucial for applications requiring precise measurements.
• Low Input Bias Current: The maximum input bias current is 0.25µA at 5V, which minimizes the loading effect on the input signals, ensuring that the input signals remain largely unaffected by the comparator.
• Low Quiescent Current: The KA2903D has a maximum quiescent current of 2.5mA, which is beneficial for applications where power consumption is a concern.
• High Output Current: The comparator can provide a typical output current of 16mA at 5V, making it capable of driving various loads effectively.
• Surface Mount Compatibility: The surface mount mounting type of the KA2903D allows for easy integration into modern printed circuit boards (PCBs), facilitating compact and efficient designs.
• Moisture Sensitivity Level (MSL) 1: The KA2903D has an MSL rating of 1, indicating that it is not sensitive to moisture and can be stored and handled without special precautions.
• REACH Compliance: The KA2903D is REACH unaffected, ensuring compliance with environmental and safety regulations.

KA2903D Applications

The KA2903D is ideal for a range of applications that require precise signal comparison and low power consumption. Some specific use cases include:

• Signal Processing: The differential comparator can be used in signal processing circuits to compare and process analog signals accurately.
• Level Shifting: The wide supply voltage range makes it suitable for level shifting applications where different voltage levels need to be compared and converted.
• Threshold Detection: The KA2903D can be employed in threshold detection circuits to monitor and respond to specific voltage levels.
• Power Management: The low quiescent current and high output current capabilities make it suitable for power management applications where efficient power usage is critical.
• Industrial Control Systems: The robustness and precision of the KA2903D make it a reliable choice for industrial control systems where accurate signal comparison is essential.

Conclusion of KA2903D

The KA2903D, despite being obsolete, continues to offer significant value in specific applications due to its unique features and performance benefits. Its wide supply voltage range, low input offset voltage, and low quiescent current make it a versatile and efficient choice for various electronic systems. The surface mount compatibility and moisture sensitivity level 1 rating further enhance its usability in modern designs. While newer models may offer additional features, the KA2903D remains a reliable option for applications requiring precise differential signal comparison and low power consumption.