Intersil

ISL84543IHZ-T

ISL84543IHZ-T Description

The ISL84543IHZ-T is a high-performance analog switch designed by Intersil, featuring a single-pole, single-throw (SPST) configuration with normally open (NO) and normally closed (NC) options. This device is housed in a compact SOT23-8 package, making it suitable for space-constrained applications. The ISL84543IHZ-T operates over a wide supply voltage range of 2.7V to 12V, providing flexibility in various power supply environments.

ISL84543IHZ-T Features

• Low Leakage Current: With a maximum leakage current of 100pA, the ISL84543IHZ-T ensures minimal power loss and high efficiency, making it ideal for low-power applications.
• Wide Supply Voltage Range: The device supports a supply voltage range from 2.7V to 12V, offering compatibility with a broad range of power supply systems.
• Low On-State Resistance: The maximum on-state resistance (Ron) is 60Ω, ensuring minimal voltage drop and power dissipation when the switch is closed.
• High Channel-to-Channel Matching: The ΔRon of 800mΩ ensures consistent performance across multiple channels, which is crucial for applications requiring precise signal routing.
• Low Channel Capacitance: Both CS(off) and CD(off) are rated at 8pF, minimizing signal distortion and ensuring high-speed switching capabilities.
• Fast Switching Times: The ISL84543IHZ-T boasts fast turn-on and turn-off times of 100ns and 75ns respectively, enabling rapid signal switching without significant delays.
• Charge Injection: The low charge injection of 1pC helps maintain signal integrity, especially in sensitive analog applications.
• ROHS3 Compliance: The device adheres to stringent environmental standards, ensuring it is free from harmful substances and suitable for eco-friendly designs.
• Surface Mount Packaging: The SOT23-8 package is designed for surface mount technology, facilitating automated assembly processes and enhancing reliability.

ISL84543IHZ-T Applications

The ISL84543IHZ-T is well-suited for a variety of applications due to its versatile performance characteristics. Key applications include:

• Signal Routing in Mixed-Signal Systems: Ideal for routing analog signals in systems where precise control and minimal signal degradation are critical.
• Audio and Video Switching: The low on-state resistance and fast switching times make it suitable for switching audio and video signals without compromising quality.
• Medical Equipment: The device's low leakage current and high reliability make it suitable for medical devices where precision and safety are paramount.
• Telecommunications: The wide supply voltage range and fast switching times are beneficial in telecom applications requiring robust and efficient signal switching.
• Consumer Electronics: The compact size and surface mount packaging make it ideal for consumer electronics where space and ease of assembly are important considerations.

Conclusion of ISL84543IHZ-T

The ISL84543IHZ-T is a robust and versatile analog switch that offers a combination of low leakage current, wide supply voltage range, and fast switching times. Its low on-state resistance and high channel-to-channel matching ensure high performance and reliability in various applications. While the product is now obsolete, its unique features and performance benefits make it a valuable component for existing designs and legacy systems. For new designs, engineers may consider its successor or similar models that build upon the ISL84543IHZ-T's strengths.