MAX4907FELA+T

Analog Switches - Special Purpose Overview

The MAX4907FELA+T is a dual single-pole/single-throw (SPST) analog switch designed for high-speed USB 2.0 applications operating at 480Mbps. It features a maximum on-resistance of 7Ω and an on-capacitance of 7pF, with a -3dB bandwidth of 1GHz. The device operates from a single +3.0V to +3.6V supply and includes +5.5V fault protection on COM terminals. Quiescent current is 300µA maximum, reducing to less than 2µA in shutdown mode. It utilizes a 8-pin µDFN package and supports logic levels down to 1.4V.

Analog Switches - Special Purpose Feature Summary

• Dual SPST configuration optimized for USB 2.0 high-speed data routing
• +5.5V fault protection prevents damage from shorts to the USB bus voltage rail
• Ultra-low on-capacitance ensures minimal signal distortion at 480Mbps
• Shutdown input reduces power consumption for battery-operated portable devices

Analog Switches - Special Purpose Applications

• USB 2.0 High-Speed Data Routing
• Switching Between Multiple USB Hosts
• Ethernet Switching for 10/100 Base-T PHYs
• Bus Switches for Redundancy Protection

Analog Switches - Special Purpose Procurement Notes

Verify the component authenticity by checking the top marking against the datasheet selector guide. Confirm the suffix 'F' indicates the presence of overvoltage fault protection and 'L' denotes the specific µDFN package code. Ensure the ordering information matches the exact pin count and thermal pad requirements for the 8-pin layout.

Analog Switches - Special Purpose Selection Notes

Select this part when designing systems requiring switching between different data types sharing the same pins, provided the shared device can enter tri-state mode. Compare against the MAX4907ELA if fault protection is not required. Consider the MAX4906 series if Single-Pole-Double-Throw (SPDT) functionality is needed instead of SPST.

Analog Switches - Special Purpose Part Context

This component belongs to the MAX4906/MAX4907 family of high-speed analog switches manufactured by Analog Devices Inc./Maxim Integrated. The 'F' variant specifically adds overvoltage protection capabilities compared to the standard version. These switches are engineered for low insertion loss and high isolation in compact portable electronics.

Analog Switches - Special Purpose Replacement Considerations

MAX4907ELA is the non-fault-protected equivalent within the same package.

Analog Switches - Special Purpose FAQ

How does the MAX4907FELA+T protect against USB bus faults?

It features +5.5V fault protection on the COM1 and COM2 terminals, preventing damage if these pins are shorted to the USB supply rail.

What is the logic compatibility range for this switch?

The device has a low threshold voltage with a VIH of 1.4V, allowing it to be used with 3.3V, 1.8V, and 1.4V logic levels.

What is the maximum quiescent current during normal operation?

The maximum quiescent supply current is 300µA when the SHDN input is driven low for normal operation.