National Semiconductor Tariff Inquiry

LMC6772AIN

LMC6772AIN Description

The LMC6772AIN is a general-purpose comparator IC designed by National Semiconductor, featuring dual comparators in an 8-DIP through-hole package. This device is engineered to provide robust performance in a variety of applications where precise voltage comparison is required. The LMC6772AIN operates over a wide supply voltage range, from 2.7V to 15V for single supply and ±1.35V to ±7.5V for dual supply configurations, making it versatile for different power requirements.

LMC6772AIN Features

• High Common-Mode Rejection Ratio (CMRR) and Power Supply Rejection Ratio (PSRR): The LMC6772AIN boasts a typical CMRR of 75dB and PSRR of 80dB, ensuring high accuracy and stability in voltage comparison even in the presence of noise and supply voltage variations.
• Low Propagation Delay: With a maximum propagation delay of 10µs, the LMC6772AIN offers fast response times, making it suitable for applications requiring quick decision-making based on voltage levels.
• Low Input Offset Voltage: The maximum input offset voltage of 5mV at 5V supply ensures precise comparisons, minimizing errors in voltage level detection.
• Low Input Bias Current: The maximum input bias current of 0.04pA at 5V supply voltage highlights the device's high input impedance, which is crucial for applications where minimal loading of the input signal is desired.
• Low Quiescent Current: The maximum quiescent current of 20µA ensures efficient power usage, making the LMC6772AIN suitable for battery-powered and low-power applications.
• High Output Current: The typical output current of 30mA allows the LMC6772AIN to drive various loads directly, reducing the need for additional buffering components.
• Through-Hole Mounting: The through-hole package type facilitates easy integration into PCB designs, ensuring mechanical stability and ease of soldering.

LMC6772AIN Applications

The LMC6772AIN is ideal for a range of applications due to its general-purpose design and robust performance characteristics. Some specific use cases include:

• Signal Processing: The low input offset voltage and high CMRR make it suitable for applications where accurate signal comparison is critical, such as in analog-to-digital converters or signal conditioning circuits.
• Power Management: The wide supply voltage range and low quiescent current make it a good fit for power management systems, where precise voltage monitoring and control are required.
• Battery Monitoring: The low quiescent current and high input impedance are beneficial for battery monitoring applications, where minimal power draw and accurate voltage detection are essential.
• Automotive Electronics: The device's ability to operate over a wide voltage range and its robust performance characteristics make it suitable for automotive applications, where voltage levels can vary significantly.
• Industrial Control Systems: The LMC6772AIN's general-purpose nature and high performance make it a versatile choice for industrial control systems, where reliable voltage comparison is necessary for process control and monitoring.

Conclusion of LMC6772AIN

The LMC6772AIN from National Semiconductor is a versatile and high-performance dual comparator IC that offers significant advantages over similar models. Its wide supply voltage range, low input offset voltage, high CMRR, and low quiescent current make it suitable for a variety of applications, from signal processing to power management. Despite being marked as obsolete, the LMC6772AIN remains a reliable choice for engineers seeking a robust and efficient comparator solution. Its through-hole package and general-purpose design ensure ease of integration and adaptability to different circuit requirements.