Texas Instruments

SNJ54LS85J  

Linear Comparators

SNJ54LS85J Description

The SNJ54LS85J is a 4-bit magnitude comparator integrated circuit (IC) designed by Texas Instruments. This Linear IC Chip is part of the 54LS series and is housed in a through-hole package, specifically a tube. The SNJ54LS85J is ideal for applications requiring fast and reliable digital comparison operations. It operates within a supply voltage range of 4.5V to 5.5V and features an active-high output function, providing outputs for A<B, A=B, and A>B comparisons. With a maximum propagation delay of 45ns at 5V and a capacitive load of 15pF, the SNJ54LS85J ensures high-speed performance. The IC has a quiescent current of 20 mA and can handle output currents of 400µA in high state and 4mA in low state. The SNJ54LS85J is also ROHS3 compliant, making it suitable for environmentally conscious applications.

SNJ54LS85J Features

• High-Speed Performance: With a maximum propagation delay of 45ns at 5V and 15pF, the SNJ54LS85J ensures rapid comparison operations, making it suitable for high-speed digital systems.
• Low Quiescent Current: The IC operates with a quiescent current of only 20 mA, which is advantageous for applications where power consumption is a critical factor.
• Wide Supply Voltage Range: The SNJ54LS85J operates within a supply voltage range of 4.5V to 5.5V, providing flexibility in power supply requirements.
• Active-High Output: The active-high output function simplifies circuit design and integration with other digital components.
• Through-Hole Mounting: The through-hole package type ensures robust mechanical stability and ease of installation on printed circuit boards (PCBs).
• ROHS3 Compliance: The SNJ54LS85J is ROHS3 compliant, making it suitable for applications where environmental regulations are a consideration.
• Output Current Capability: The IC can handle output currents of 400µA in high state and 4mA in low state, ensuring reliable operation in various load conditions.

SNJ54LS85J Applications

The SNJ54LS85J is ideal for a variety of applications that require efficient and accurate digital comparison operations. Some specific use cases include:

• Digital Systems: Used in digital circuits where fast and accurate comparison of binary numbers is required.
• Microprocessor Systems: Ideal for use in microprocessor-based systems where comparison operations are frequent and speed is critical.
• Data Processing: Suitable for data processing applications where multiple data streams need to be compared and sorted.
• Control Systems: Used in control systems where precise comparison of input signals is necessary for decision-making processes.
• Testing and Measurement Equipment: Ideal for use in test and measurement equipment where accurate and fast comparison of signals is essential.

Conclusion of SNJ54LS85J

The SNJ54LS85J is a versatile and high-performance 4-bit magnitude comparator IC that offers several advantages over similar models. Its low propagation delay, low quiescent current, and wide supply voltage range make it suitable for a wide range of applications. The active-high output function and through-hole mounting type further enhance its usability in various digital systems. With its ROHS3 compliance and robust output current capability, the SNJ54LS85J is an excellent choice for designers looking for a reliable and efficient magnitude comparator.

SNJ54LS85J Documents

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Datasheets :

Datasheet