MAX4738EBE

Analog Switches, Multiplexers, Demultiplexers Overview

The MAX4738EBE is a quad SPST-NC (normally closed) analog switch manufactured by Analog Devices Inc./Maxim Integrated. It operates on a single supply voltage ranging from 1.8V to 5.5V. The device features a maximum on-resistance of 4.5 Ohms and a channel-to-channel matching of 100 milliohms. Key electrical parameters include a -3dB bandwidth of 300MHz, charge injection of 5pC, and off-leakage current of 500pA. Switching times are specified with a maximum turn-on time of 80ns and turn-off time of 40ns. The component supports an operating temperature range from -40°C to +85°C and is housed in a 14-TSSOP package.

Analog Switches, Multiplexers, Demultiplexers Feature Summary

• Normally closed signal path configuration for fail-safe operation
• High-speed performance with 300MHz bandwidth
• Low on-resistance with tight channel matching
• Single-supply operation compatible with low-voltage logic

Analog Switches, Multiplexers, Demultiplexers Applications

• Signal routing in portable battery-powered instruments
• Data acquisition systems requiring normally closed defaults
• Audio and video signal switching applications
• Industrial process control signal conditioning

Analog Switches, Multiplexers, Demultiplexers Procurement Notes

Verify the specific suffix 'EBE' against official Analog Devices documentation to confirm the exact temperature grade and packaging variant. Ensure the ordering information matches the required 14-TSSOP footprint and lead-free specifications. Cross-reference the manufacturer part number with authorized distributors to confirm current availability status and authenticity before procurement.

Analog Switches, Multiplexers, Demultiplexers Selection Notes

Select this component when a normally closed state is required for signal integrity during power-down or fault conditions. The 4.5 Ohm on-resistance suits applications demanding low signal attenuation. Verify that the 300MHz bandwidth meets the frequency requirements of the target signal path. Confirm that the 1.8V to 5.5V supply range aligns with the system's available power rails.

Analog Switches, Multiplexers, Demultiplexers Part Context

The MAX4738 belongs to the MAX4737-MAX4739 family of low-voltage, high-speed analog switches. This series provides quad SPST configurations optimized for space-constrained designs. The MAX4738 specifically offers normally closed functionality, distinguishing it from the normally open MAX4737. These devices share common characteristics such as low on-resistance and rail-to-rail signal handling capabilities within the single-supply domain.

Analog Switches, Multiplexers, Demultiplexers Replacement Considerations

The MAX4737EUD+ serves as a functional substitute if a normally open configuration is acceptable instead of normally closed. Both devices share similar electrical specifications and pinouts. Verify that the change in switch state does not impact the circuit's default behavior or safety requirements.