MAX4630ESD+

Analog Switches, Multiplexers, Demultiplexers Overview

The MAX4630ESD+ is a quad, single-pole/single-throw (SPST) analog switch featuring normally closed (NC) contacts. It operates on a single supply voltage ranging from +2V to +12V and provides ±15kV ESD protection on the NO/NC pins. The device offers an on-resistance of 70Ω max at +5V and 120Ω max at +3V, with typical matching of 0.5Ω and flatness of 2Ω at +5V. It supports rail-to-rail signal ranges, has a -3dB bandwidth exceeding 300MHz, and draws only 0.5µW in power-off mode.

Analog Switches, Multiplexers, Demultiplexers Feature Summary

• Normally closed (NC) configuration for four independent SPST channels
• ±15kV ESD protection on NC/NO terminals without latchup
• Rail-to-Rail signal handling capability
• TTL/CMOS logic compatible control inputs

Analog Switches, Multiplexers, Demultiplexers Applications

• Battery-powered systems
• Audio and video signal routing
• Low-voltage data-acquisition systems
• Sample-and-hold circuits
• Relay replacement

Analog Switches, Multiplexers, Demultiplexers Procurement Notes

Verify the component marking against the official datasheet pinout diagram to confirm the specific MAX4630 variant. Ensure the package matches the SOIC-14 specification. Check for physical damage to the leads and verify that the device meets the required temperature range specifications before integration into the circuit design.

Analog Switches, Multiplexers, Demultiplexers Selection Notes

Select this part when a normally closed state is required upon power-up or reset. Compare the on-resistance values at your specific operating voltage against other switches if low distortion is critical. Consider the ESD protection requirements of your application to determine if additional external protection components are necessary beyond the integrated SCR mechanisms.

Analog Switches, Multiplexers, Demultiplexers Part Context

This component belongs to the MAX4620/MAX4630/MAX4640 family of low-voltage CMOS analog switches. The MAX4630 specifically features four normally closed switches, whereas the MAX4620 has four normally open switches, and the MAX4640 combines two of each. All three share identical pinouts and electrical characteristics except for the switch contact states.

Analog Switches, Multiplexers, Demultiplexers Replacement Considerations

The datasheet identifies the industry-standard 74HC4066 as a functional predecessor. Pin-compatible replacements include the MAX4066 and the MAX4610/MAX4611/MAX4612 series. Verify that any substitute maintains the required ESD protection levels and on-resistance specifications for your specific application.