FSA1256L8X_F113

Analog Switches, Multiplexers, Demultiplexers Overview

The FSA1256L8X_F113 is a dual Single-Pole Single-Throw (SPST) analog switch in an 8-Lead MicroPak package. It features two Normally Open switches with a maximum on resistance of 1.15 Ω at 4.5 V and 0.4 Ω flatness. The device operates within a supply voltage range of 1.65 V to 5.5 V, supporting a continuous switch current of 200 mA. Switching times are characterized by a maximum turn-on time of 35 ns and a turn-off time of 15 ns at 4.5 V. The control input is TTL-compatible, and the component functions across a temperature range of -40°C to +85°C.

Analog Switches, Multiplexers, Demultiplexers Feature Summary

• Dual SPST configuration with two Normally Open channels
• Ultra-low on resistance for minimal signal loss
• TTL-compatible control input logic levels
• Space-saving lead-free MicroPak packaging

Analog Switches, Multiplexers, Demultiplexers Applications

• Cell phones and PDAs
• Digital cameras and notebook computers
• LCD monitors and set-top boxes

Analog Switches, Multiplexers, Demultiplexers Procurement Notes

Verify the part number against ON Semiconductor's updated nomenclature, as Fairchild underscore suffixes may be replaced with dashes during system integration. Confirm the specific ordering code matches the required tape and reel packing method. Ensure the selected variant aligns with the intended operating voltage range before finalizing procurement.

Analog Switches, Multiplexers, Demultiplexers Selection Notes

Select this component when low on resistance and fast switching speeds are required for portable electronics. Verify that the application voltage falls within the 1.65 V to 5.5 V range. Consider the 8-Lead MicroPak package dimensions for PCB layout constraints. Ensure thermal dissipation requirements are met within the specified ambient temperature limits.

Analog Switches, Multiplexers, Demultiplexers Part Context

This device belongs to the FSA1256(A), FSA1257(A), and FSA1258(A) family of low-voltage analog switches. It shares core specifications with the FSA1256A but differs in its extended lower voltage capability starting at 1.65 V. The 'F113' suffix indicates a specific Fairchild ordering designation now managed under ON Semiconductor systems.

Analog Switches, Multiplexers, Demultiplexers Replacement Considerations

The FSA1256AL8X serves as a functional substitute within the same series, though it operates from a higher minimum voltage of 2.7 V. Other family members like the FSA1257L8X offer Normally Closed configurations instead of Normally Open.