onsemi

FSA859UCX

FSA859UCX Description

The FSA859UCX is an obsolete IC switch featuring a single-pole double-throw (SPDT) configuration, designed for high-performance analog signal routing applications. Manufactured by onsemi, this device offers a robust combination of low on-state resistance, fast switching times, and excellent signal integrity. The FSA859UCX is housed in an 8WLCSP package, making it suitable for surface-mount applications where space is a premium. With a supply voltage range of 1.65V to 5.5V, it provides flexibility in various power supply configurations. The device also boasts a low leakage current of 10nA, ensuring minimal power consumption when in the off state. Its channel capacitance of 50pF and -3dB bandwidth of 60MHz make it ideal for high-frequency applications, while the charge injection of 70pC ensures minimal signal distortion during switching.

FSA859UCX Features

• Low On-State Resistance: With a maximum on-state resistance of 750mOhm, the FSA859UCX ensures minimal voltage drop across the switch, leading to efficient signal transmission.
• Fast Switching Times: The device offers a maximum turn-on time of 25ns and turn-off time of 20ns, making it suitable for high-speed signal switching applications.
• Wide Supply Voltage Range: The FSA859UCX operates within a supply voltage range of 1.65V to 5.5V, providing flexibility for various power supply configurations.
• Low Leakage Current: A maximum leakage current of 10nA ensures minimal power consumption when the switch is in the off state, making it ideal for low-power applications.
• High Signal Integrity: The device features a channel capacitance of 50pF and a -3dB bandwidth of 60MHz, ensuring minimal signal degradation and high-frequency performance.
• Minimal Signal Distortion: With a charge injection of 70pC, the FSA859UCX minimizes signal distortion during switching, ensuring high signal integrity.
• Moisture Sensitivity Level: The FSA859UCX has a moisture sensitivity level (MSL) of 1, making it suitable for unlimited exposure to moisture, enhancing its reliability in various environmental conditions.
• Compliance: The device is REACH unaffected and classified under ECCN EAR99, ensuring compliance with international regulatory standards.

FSA859UCX Applications

The FSA859UCX is ideal for a variety of applications requiring high-performance analog signal routing. Its low on-state resistance and fast switching times make it suitable for:

• Audio Signal Routing: Efficiently routing audio signals in consumer electronics, ensuring minimal signal loss and distortion.
• High-Speed Data Communication: Switching high-speed data signals in communication systems, maintaining signal integrity and minimizing latency.
• Medical Equipment: Routing signals in medical devices where high reliability and minimal signal distortion are critical.
• Industrial Control Systems: Managing signal routing in industrial automation systems, ensuring robust and reliable operation.
• Consumer Electronics: Enabling efficient signal switching in devices such as smartphones, tablets, and other portable electronics.

Conclusion of FSA859UCX

The FSA859UCX, despite being an obsolete model, remains a reliable choice for applications requiring high-performance analog signal routing. Its low on-state resistance, fast switching times, and high signal integrity make it a standout option in the market. The device’s wide supply voltage range, low leakage current, and minimal signal distortion further enhance its appeal. While newer models may offer additional features, the FSA859UCX continues to deliver exceptional performance in its intended applications, making it a valuable component for engineers and designers in the electronics industry.