MAX4947ETG+

Analog Switches, Multiplexers, Demultiplexers Overview

The MAX4947ETG+ is a triple double-pole/double-throw (DPDT) analog switch manufactured by Analog Devices Inc./Maxim Integrated. It operates from a single +1.8V to +5.5V supply and features a typical on-resistance of 4Ω and low capacitance of 30pF. The device utilizes a 24-pin TQFN package with an exposed paddle. Key electrical parameters include a maximum turn-on/off time of 800ns, a -3dB bandwidth of 300MHz, and off-isolation of -70dB at 1MHz. It supports rail-to-rail signal handling and includes three logic inputs for control.

Analog Switches, Multiplexers, Demultiplexers Feature Summary

• Triple DPDT configuration with dedicated logic inputs for paired switch control
• Low on-resistance and low capacitance optimized for high-speed data switching
• Wide supply voltage range supporting 1.8V to 5.5V operation
• Rail-to-rail signal handling capability

Analog Switches, Multiplexers, Demultiplexers Applications

• Multiplexing SDIO or Memory Stick interfaces
• USB signal switching
• UART signal switching

Analog Switches, Multiplexers, Demultiplexers Procurement Notes

Verify the specific ordering suffix ETG+ corresponds to the 24-pin TQFN-EP package variant. Confirm RoHS compliance status as indicated by the plus sign in the part number. Ensure the component meets the required temperature range specifications for the intended application environment before finalizing procurement.

Analog Switches, Multiplexers, Demultiplexers Selection Notes

Select this component when a triple DPDT switch topology is required within a compact footprint. Consider the 4Ω typical on-resistance and 30pF capacitance for signal integrity requirements. Verify that the 1.8V to 5.5V supply range aligns with the system power architecture and that the 24-pin TQFN package fits the PCB layout constraints.

Analog Switches, Multiplexers, Demultiplexers Part Context

This component belongs to the MAX4947/MAX4948 family of hex SPDT data switches. The MAX4947 variant specifically provides a triple DPDT configuration, whereas the MAX4948 offers a hex SPDT setup with an enable input. Both share similar electrical characteristics and are designed for high-speed data switching applications requiring low insertion loss and minimal signal distortion.

Analog Switches, Multiplexers, Demultiplexers Replacement Considerations

The MAX4948ETG+ is a related part within the same family but offers a hex SPDT configuration instead of triple DPDT. Direct substitution requires verifying if the additional channels and different control logic suit the design. No other cross-model replacements are confirmed in the provided documentation.