MAX4621ESE+T

Analog Switches, Multiplexers, Demultiplexers Overview

The MAX4621ESE+T is a precision, dual, high-speed analog switch in a 16-pin Narrow SO package. It features two single-pole/single-throw (SPST) channels with a maximum on-resistance of 5Ω and guaranteed matching within 0.5Ω. The device supports single-supply operation from +4.5V to +36V or bipolar supplies from ±4.5V to ±18V. Key electrical parameters include turn-on time under 250ns, turn-off time under 200ns, and off-leakage current below 5nA at +85°C. It operates within an extended temperature range of -40°C to +85°C.

Analog Switches, Multiplexers, Demultiplexers Feature Summary

• Low on-resistance with guaranteed channel matching for low-distortion signal switching
• Rail-to-rail analog signal handling capability across wide supply ranges
• CMOS-logic input compatibility for direct interface with standard digital logic

Analog Switches, Multiplexers, Demultiplexers Applications

• Reed relay replacement in industrial systems
• Automatic test equipment requiring reliable current switching
• Audio-signal routing in communication systems
• Data-acquisition systems and avionics

Analog Switches, Multiplexers, Demultiplexers Procurement Notes

Verify the component authenticity by checking the manufacturer marking against official documentation. Confirm the suffix indicates the specific package type and temperature grade. Ensure the ordering information matches the required electrical specifications for the intended application environment.

Analog Switches, Multiplexers, Demultiplexers Selection Notes

Select this component when low distortion and precise resistance matching are critical. Verify that the supply voltage range aligns with the system design. Consider the package size constraints and thermal dissipation requirements for the specific PCB layout.

Analog Switches, Multiplexers, Demultiplexers Part Context

This part belongs to the MAX4621/MAX4622/MAX4623 family of dual analog switches. It serves as a pin-compatible replacement for legacy parts like the DG401, offering improved performance metrics while maintaining the same footprint for board upgrades.

Analog Switches, Multiplexers, Demultiplexers Replacement Considerations

The MAX4621 is a pin-compatible replacement for the DG401. Verify that the substitute meets the required on-resistance and leakage specifications for the specific circuit application.

Analog Switches, Multiplexers, Demultiplexers FAQ

What is the maximum on-resistance flatness over the analog signal range?

The on-resistance flatness is guaranteed to remain within a maximum variation of 0.5Ω over the full analog signal range.

How does the MAX4621 handle overvoltage conditions?

Signals exceeding V+ or V- are clamped by internal diodes. External blocking diodes can be added if proper power-supply sequencing cannot be maintained.

Is the MAX4621 compatible with TTL logic levels?

Yes, the device features CMOS-logic input compatibility, which includes support for TTL logic levels.