MAX4620EUD+

Analog Switches, Multiplexers, Demultiplexers Overview

The MAX4620EUD+ is a low-voltage, quad single-pole/single-throw (SPST) CMOS analog switch in a 14-pin TSSOP package. It operates from a +2V to +12V single supply and features ±15kV ESD protection on NO/NC pins. Key electrical parameters include a maximum on-resistance of 70Ω at 5V and 120Ω at 3V, with typical matching of 0.5Ω and flatness of 2Ω at 5V. Off-leakage current is guaranteed at 0.5nA at +25°C. The device supports TTL/CMOS logic inputs, offers a -3dB bandwidth exceeding 300MHz, and total harmonic distortion of 0.015%. Operating temperature range is -40°C to +85°C.

Analog Switches, Multiplexers, Demultiplexers Feature Summary

• Provides ±15kV electrostatic discharge protection on normally open and normally closed pins without latchup or damage.
• Pin-compatible replacement for industry-standard 74HC4066 analog switches.
• Handles rail-to-rail analog signals while consuming minimal power.
• Features low distortion suitable for audio applications.

Analog Switches, Multiplexers, Demultiplexers Applications

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

Analog Switches, Multiplexers, Demultiplexers Procurement Notes

Verify the component matches the specific MAX4620 variant with four normally open switches, distinct from the MAX4630 (normally closed) and MAX4640 (mixed). Confirm the 'E' suffix indicates the industrial temperature range of -40°C to +85°C and the 'UD' suffix corresponds to the 14-pin TSSOP package. Ensure RoHS compliance documentation aligns with current manufacturing standards.

Analog Switches, Multiplexers, Demultiplexers Selection Notes

Select this component when a quad SPST switch compatible with 74HC4066 pinouts is required. It is suitable for battery-powered designs due to its wide +2V to +12V supply range and low power consumption. Choose this part over mechanical relays for applications requiring high reliability, small board space, and current switching capabilities.

Analog Switches, Multiplexers, Demultiplexers Part Context

The MAX4620 is part of the MAX4620/MAX4630/MAX4640 family of low-voltage, high-ESD-protected CMOS analog switches. These devices are designed as direct replacements for standard 74HC4066 switches but offer superior ESD protection and lower power dissipation. The family includes variations with normally open, normally closed, or mixed switch configurations.

Analog Switches, Multiplexers, Demultiplexers Replacement Considerations

The MAX4620 is a pin-compatible replacement for the 74HC4066, MAX4066, and MAX4610/MAX4611/MAX4612. Designers should verify that the replacement meets the specific ESD protection requirements and on-resistance characteristics needed for the application.

Analog Switches, Multiplexers, Demultiplexers FAQ

How does the MAX4620 handle ESD events?

The device incorporates bidirectional SCRs on-chip between the NC/NO terminals and ground. These SCRs turn on within nanoseconds during an ESD strike, bypassing the surge safely to ground.

What is the holding current requirement for the ESD SCR?

To ensure the SCR turns off after an ESD event, connected sources must be current-limited to below the holding current. The typical holding current is 110mA at room temperature, dropping to 70mA at +85°C.

Can the MAX4620 operate with a +12V supply?

Yes, the device guarantees operation from a +2V to +12V single supply. When operating near the maximum voltage, it is recommended to bypass V+ with a minimum 0.1µF capacitor close to the IC.