FSA66P5X

Analog Switches, Multiplexers, Demultiplexers Overview

The FSA66P5X is a low-voltage ultra high-speed (UHS) single-pole/single-throw (SPST) normally open analog switch manufactured by onsemi. It operates within a supply voltage range of 1.65V to 5.5V and features rail-to-rail signal handling capabilities. The device utilizes a 5-lead SC70 package with a maximum power dissipation of 150mW at 85°C. Key electrical parameters include a maximum on-resistance of 7Ω, a maximum propagation delay of 4.5ns, and an output enable time of up to 5ns. It supports a -3dB bandwidth exceeding 250MHz and maintains a quiescent supply current of no more than 10μA across the operating temperature range of -40°C to +85°C.

Analog Switches, Multiplexers, Demultiplexers Feature Summary

• Ultra high-speed CMOS compatible SPST analog switch architecture
• Rail-to-rail signal handling capability
• Zero bounce operation in flow-through mode
• Control input compatibility with standard CMOS logic levels

Analog Switches, Multiplexers, Demultiplexers Applications

• High-speed data line switching
• Portable electronic devices requiring space-saving packages
• Low voltage signal routing applications

Analog Switches, Multiplexers, Demultiplexers Procurement Notes

Verify the specific ordering suffix against the manufacturer's official documentation to ensure correct packaging and lead-free status. Confirm that the component meets RoHS compliance requirements for your target market. Check for any recent product change notices or obsolescence announcements from onsemi regarding this part number before finalizing procurement plans.

Analog Switches, Multiplexers, Demultiplexers Selection Notes

Select this component when a single-channel analog switch with minimal propagation delay is required. Ensure the application voltage stays within the 1.65V to 5.5V range. Consider the SC70-5 package dimensions if board space is constrained. Verify that the control logic levels match the CMOS input specifications for reliable switching operation.

Analog Switches, Multiplexers, Demultiplexers Part Context

The FSA66P5X belongs to the FSA66 series of low-voltage UHS analog switches originally developed by Fairchild Semiconductor. Following the integration of Fairchild into onsemi, this part number represents the SC70-5 package variant of the family. It serves as a compact solution for signal routing in portable electronics where low power consumption and high speed are critical design constraints.

Analog Switches, Multiplexers, Demultiplexers Replacement Considerations

The FSA66M5X offers identical electrical characteristics but utilizes a SOT23-5 package instead of SC70-5. The FSA66L6X provides similar performance in a MicroPak package. Verify pinout compatibility and physical footprint differences before substituting these variants in existing designs.