MAX4638ESE+

Analog Switches, Multiplexers, Demultiplexers Overview

The MAX4638ESE+ is a single-channel, 8-to-1 CMOS analog multiplexer manufactured by Analog Devices Inc./Maxim Integrated. It operates from a single +1.8V to +5.5V supply or dual ±2.5V supplies. The device features a typical on-resistance of 3.5Ω at +5V and 6Ω at +3V, with a maximum channel-to-channel match of 0.4Ω. Switching times are specified as 18ns for turn-on and 7ns for turn-off. It provides an -85dB crosstalk level and -75dB off-isolation at 1MHz. The component supports bidirectional signal flow, handles rail-to-rail analog signals, and includes TTL/CMOS-compatible logic inputs with standard BCD decoding.

Analog Switches, Multiplexers, Demultiplexers Feature Summary

• Supports low-voltage operation with single or dual power supply configurations
• Features guaranteed low on-resistance and high channel matching accuracy
• Provides break-before-make switching to prevent signal shorting
• Includes an enable input for simplified cascading and system control

Analog Switches, Multiplexers, Demultiplexers Applications

• Automatic Test Equipment
• Low-Voltage Data-Acquisition Systems
• Audio and Video Signal Routing
• Medical Equipment
• Battery-Powered Equipment

Analog Switches, Multiplexers, Demultiplexers Procurement Notes

Verify the specific package type and temperature range against project requirements before ordering. Confirm that the supplier provides genuine components with traceable documentation. Check for RoHS compliance status if environmental regulations apply to the manufacturing process. Ensure proper handling procedures are followed during storage and assembly to maintain device integrity.

Analog Switches, Multiplexers, Demultiplexers Selection Notes

Select this component when a single 8:1 multiplexing function is required in space-constrained designs. It is suitable for applications demanding low voltage operation and fast switching speeds. Consider the SOIC-16 package dimensions for PCB layout planning. Evaluate the leakage current specifications against the sensitivity requirements of the connected analog signals.

Analog Switches, Multiplexers, Demultiplexers Part Context

This part belongs to the MAX4638/MAX4639 family of low-voltage analog multiplexers. The MAX4638 variant specifically provides a single 8:1 configuration, whereas the MAX4639 offers a dual 4:1 setup. Both share similar electrical characteristics and pinout compatibility within their respective families, allowing for flexible design choices based on channel count needs.

Analog Switches, Multiplexers, Demultiplexers Replacement Considerations

Direct functional substitutes include other Maxim Integrated 8:1 analog multiplexers with comparable on-resistance and voltage ranges. Verify pin compatibility and electrical parameters such as bandwidth and leakage current before substitution. Alternative packages like TQFN or TSSOP may require footprint adjustments.