Intersil

ISL84523IB

ISL84523IB Description

The ISL84523IB is a high-performance analog switch designed by Intersil, featuring four single-pole single-throw (SPST) switches with both normally open (NO) and normally closed (NC) configurations. This device is housed in a 16-pin SOIC package and is designed for surface-mount applications. Despite its obsolescence, the ISL84523IB remains a notable choice for various electronic circuits due to its robust performance and specific technical attributes.

ISL84523IB Features

• Low Leakage Current: The ISL84523IB boasts a maximum leakage current of only 1nA, ensuring minimal power loss and high efficiency in low-power applications.
• Wide Supply Voltage Range: It operates with a dual supply voltage range of ±2V to ±6V and a single supply voltage range of 2V to 12V, providing flexibility in power supply requirements.
• Low On-State Resistance: With a maximum on-state resistance of 100Ω, this switch ensures minimal voltage drop across the device when in the on-state, enhancing overall system efficiency.
• High Channel-to-Channel Matching: The device offers a channel-to-channel matching of 1Ω, ensuring consistent performance across multiple channels, which is critical in applications requiring uniform signal handling.
• Low Channel Capacitance: Both the source-to-drain (CS(off)) and drain-to-source (CD(off)) capacitances are rated at 2pF, minimizing signal distortion and ensuring fast switching times.
• Fast Switching Times: The ISL84523IB provides a turn-on time (Ton) of 80ns and a turn-off time (Toff) of 30ns, enabling rapid signal switching and high-speed operation.
• Minimal Charge Injection: With a charge injection of only 1pC, the ISL84523IB minimizes transient disturbances, making it suitable for sensitive analog signal processing applications.
• Multiplexer/Demultiplexer Circuit: The 1:1 multiplexer/demultiplexer circuit design allows for efficient signal routing and control.

ISL84523IB Applications

The ISL84523IB is ideal for a variety of applications where high performance and reliability are paramount. Its low leakage current and wide supply voltage range make it suitable for battery-operated devices and portable electronics. The low on-state resistance and fast switching times are beneficial in high-speed data acquisition systems and signal processing circuits. Additionally, its low channel capacitance and minimal charge injection ensure minimal signal degradation, making it ideal for precision analog signal routing in medical equipment, instrumentation, and communication systems.

Conclusion of ISL84523IB

Despite being marked as obsolete, the ISL84523IB remains a valuable component in the electronics industry due to its superior performance characteristics. Its low leakage current, wide supply voltage range, and low on-state resistance make it a reliable choice for applications requiring high efficiency and minimal power loss. The fast switching times and minimal charge injection ensure high-speed operation and signal integrity, making it suitable for demanding analog signal processing tasks. While newer alternatives may be available, the ISL84523IB continues to offer unique advantages that make it a preferred choice in specific use cases, particularly where its specific technical attributes are critical to system performance.