MAX4909ETD+

Overview

The MAX4909ETD+ is a dual 3-to-1 multiplexer manufactured by Analog Devices Inc. under the Maxim Integrated brand. It operates within a single supply voltage range of 2.7 V to 5.5 V and supports a dual supply configuration of ±2.7 V to ±5.5 V. The device features a low on-resistance of 12 ohms typical at 5 V, with a maximum channel-to-channel matching of 0.2 ohms. It offers a bandwidth of 200 MHz and a charge injection of 0.6 pC. The component functions reliably across an extended temperature range from -40°C to +85°C and is housed in a compact 14-pin TDFN package.

Feature Summary

• Dual independent 3-to-1 multiplexer architecture for signal routing
• Low on-resistance with tight channel-to-channel matching
• High bandwidth supporting fast signal transitions
• Low charge injection for minimal signal distortion

Applications

• Data acquisition systems requiring signal multiplexing
• Industrial process control applications
• Medical instrumentation signal routing

Procurement Notes

Verify the exact suffix against official documentation, as packaging variations exist. Confirm RoHS compliance status through manufacturer declarations. Check current availability as distribution channels may report limited stock or discontinuation. Ensure the specific orderable part matches the required pinout and electrical specifications for your design.

Selection Notes

Select this component when dual independent multiplexing paths are required in a small footprint. The low on-resistance and high bandwidth make it suitable for precision analog signals. Consider the operating voltage range to ensure compatibility with system power rails. Evaluate thermal performance within the specified ambient temperature limits.

Part Context

This device belongs to the MAX4909 family of CMOS analog switches. It is designed for general-purpose signal switching applications. The TDFN package provides thermal efficiency and space savings compared to larger packages. It complements other Maxim Integrated analog switch solutions for complex signal routing needs.

Replacement Considerations

Check for direct pin-compatible alternatives within the same product family. Verify that substitute parts meet the same voltage, resistance, and bandwidth requirements. Consult official cross-reference guides for validated replacements.