MAX4983EEVB+T

Analog Switches - Special Purpose Overview

The MAX4983EEVB+T is a high ESD-protected analog switch designed for USB 2.0 Hi-Speed applications at 480Mbps. It features a double-pole/double-throw (DPDT) configuration with COM1 and COM2 protected against ±15kV ESD without latchup or damage. The device operates from a single +2.8V to +5.5V power supply and includes overvoltage fault protection up to VCC + 1V on the COM terminals. Key electrical parameters include a typical on-resistance of 5Ω, a -3dB bandwidth of 950MHz, and a quiescent supply current of 0.6µA. In shutdown mode, the supply current drops to 0.1µA. The logic inputs are compatible with I/O voltages down to 1.4V.

Analog Switches - Special Purpose Feature Summary

• Provides ±15kV Human Body Model and ±15kV IEC 61000-4-2 Air Gap ESD protection on common terminals.
• Features overvoltage fault protection that safeguards downstream circuits against shorts to VBUS voltage.
• Supports low-threshold-voltage logic inputs compatible with systems operating down to 1.4V.
• Includes an active-low enable input to reduce quiescent supply current to less than 0.1µA in shutdown mode.

Analog Switches - Special Purpose Applications

• USB 2.0 Hi-Speed data line routing
• Switching between multiple USB hosts
• Video switching

Analog Switches - Special Purpose Procurement Notes

Verify the component authenticity by checking the top marking against the datasheet specifications. The MAX4983E variant utilizes an active-low enable input, whereas the MAX4984E uses an active-high enable input. Ensure the ordering suffix matches the required enable polarity and package type before finalizing procurement.

Analog Switches - Special Purpose Selection Notes

Select the MAX4983E when an active-low enable signal is required for system control. Choose the MAX4984E if the design necessitates an active-high enable input. Both variants share identical electrical characteristics and package dimensions, differing only in the logic polarity of the enable pin functionality.

Analog Switches - Special Purpose Part Context

The MAX4983E/MAX4984E series consists of high-performance analog switches optimized for USB 2.0 compliance. They utilize a charge-pump-assisted n-channel architecture to maintain low on-resistance across the full analog signal range. The devices are housed in a space-saving 10-pin, 1.4mm x 1.8mm UTQFN package suitable for portable electronics.

Analog Switches - Special Purpose Replacement Considerations

The MAX4984EEVB+T is a functional substitute within the same family, distinguished primarily by its active-high enable input compared to the MAX4983E's active-low enable. Verify logic compatibility during replacement.

Analog Switches - Special Purpose FAQ

How does the MAX4983E handle overvoltage conditions on the COM terminals?

The device features overvoltage fault protection that triggers when voltages on COM exceed the fault protection threshold (VFP). This action places COM_, NC_, and NO_ into a high-impedance state to protect downstream circuits.

What is the difference between the MAX4983E and MAX4984E enable inputs?

The MAX4983E has an active-low enable input (EN), where driving EN high puts the device in shutdown mode. The MAX4984E has an active-high enable input (EN), where driving EN low activates shutdown mode.

Can these switches pass analog signals exceeding the VCC supply voltage?

Yes, the charge-pump-assisted n-channel architecture allows the switches to pass analog signals that exceed VCC up to the overvoltage fault protection threshold, ensuring compliance with USB requirements.