MAX4621CSE+T

Analog Switches, Multiplexers, Demultiplexers Overview

The MAX4621CSE+T is a dual, high-speed analog switch in a 16-pin Narrow SO package. It features two single-pole/single-throw (SPST) normally open channels with a maximum on-resistance of 5Ω and guaranteed channel matching within 0.5Ω. The device operates from a single supply (+4.5V to +36V) or bipolar supplies (±4.5V to ±18V). Key electrical parameters include turn-on time under 250ns, turn-off time under 200ns, and off-leakage current less than 5nA at +85°C. It supports continuous currents up to 100mA and maintains CMOS logic input compatibility.

Analog Switches, Multiplexers, Demultiplexers Feature Summary

• Guaranteed low on-resistance of 5Ω maximum with tight channel-to-channel matching.
• Fast switching performance with sub-250ns turn-on and sub-200ns turn-off times.
• Low leakage characteristics ensuring minimal signal loss when switched off.
• Compatible with standard TTL and CMOS logic levels for easy interface.

Analog Switches, Multiplexers, Demultiplexers Applications

• Reed relay replacement
• Automatic test equipment
• Audio-signal routing

Analog Switches, Multiplexers, Demultiplexers Procurement Notes

Verify the specific suffix 'C' indicates the commercial temperature range (0°C to +70°C) and '+T' denotes tape-and-reel packaging. Confirm that the narrow SOIC footprint matches the target PCB layout. Ensure the design accounts for the absolute maximum ratings regarding voltage sequencing and power dissipation limits during integration.

Analog Switches, Multiplexers, Demultiplexers Selection Notes

Select this component for applications requiring precise analog signal switching with low distortion. The guaranteed on-resistance flatness makes it suitable for maintaining signal integrity across varying voltage levels. Consider the bipolar supply capability if negative signal handling is required. Verify that the 100mA continuous current rating meets the load requirements of the specific circuit application.

Analog Switches, Multiplexers, Demultiplexers Part Context

This part belongs to the MAX4621/MAX4622/MAX4623 family of precision dual analog switches. It serves as a pin-compatible replacement for legacy parts like the DG401. The family shares similar core specifications but varies in configuration, such as SPDT or DPST arrangements, allowing designers to choose the appropriate topology while maintaining consistent performance characteristics.

Analog Switches, Multiplexers, Demultiplexers Replacement Considerations

The datasheet identifies the DG401 as a pin-compatible predecessor offering comparable functionality. Designers should verify that the improved performance metrics of the MAX4621 series meet the specific requirements of the existing design without necessitating layout changes.

Analog Switches, Multiplexers, Demultiplexers FAQ

What is the maximum on-resistance match between channels?

The on-resistance match between channels is guaranteed to be within 0.5Ω maximum.

Does the MAX4621 support break-before-make operation?

No, break-before-make operation is a guaranteed feature only for the MAX4622 variant. The MAX4621 does not specify this characteristic.

What is the logic supply voltage requirement?

The device is compatible with TTL/CMOS logic inputs, typically operating with a logic supply voltage (VL) of +5V, though it functions within the broader supply range constraints.