MAX358EWE: High-Performance 8:1 Multiplexer IC in 16-SOIC Package by Analog Devices/Maxim Integrated

The MAX358EWE is a versatile and high-performance 8:1 multiplexer/demultiplexer IC designed by Analog Devices Inc./Maxim Integrated. Although marked as obsolete, this IC remains a popular choice for engineers and designers due to its robust performance, reliability, and wide range of applications. In this comprehensive guide, we ll explore the features, specifications, and applications of the MAX358EWE, along with why it continues to be a preferred solution for signal routing in industrial, communication, and data acquisition systems.

Key Features of the MAX358EWE Multiplexer IC

1. 8:1 Multiplexer/Demultiplexer Configuration

• The MAX358EWE features an 8:1 circuit configuration, allowing it to route up to eight input/output channels to a single line. This makes it ideal for applications requiring efficient signal management, such as data acquisition systems, test equipment, and telecommunication interfaces.

2. Wide Dual Supply Voltage Range (4.5V to 18V)

• The IC operates with dual supply voltages ranging from 4.5V to 18V, ensuring compatibility with both analog and digital systems. This flexibility makes it suitable for diverse applications, including industrial automation and automotive electronics.

3. Low On-State Resistance (1.8k Max)

• With a maximum on-state resistance (Ron) of 1.8k , the MAX358EWE minimizes signal loss and ensures high-fidelity signal transmission. This is critical for maintaining signal integrity in precision applications.

4. Fast Switching Speed (300ns Typical)

• The device offers rapid switching times of 300ns (Ton/Toff), enabling efficient handling of high-speed signals. This feature is essential for real-time data processing and high-frequency communication systems.

5. Low Channel Capacitance (5pF CS(off), 25pF CD(off))

• The low channel capacitance values (5pF CS(off) and 25pF CD(off)) reduce parasitic effects, enhancing performance in high-frequency applications such as RF signal routing and ADC interfacing.

6. Minimal Leakage Current (10nA Max)

• The MAX358EWE exhibits a maximum leakage current (IS(off) of 10nA, ensuring low power consumption and improved energy efficiency. This is particularly beneficial for battery-operated devices and portable electronics.

7. Extended Operating Temperature Range (-40 C to +85 C)

• Designed for harsh environments, the IC operates reliably across a temperature range of -40 C to +85 C, making it suitable for industrial, automotive, and outdoor applications.

8. Compact 16-SOIC Package

• The IC is housed in a 16-SOIC package (7.50mm width), offering a space-saving solution for modern PCB designs. Its surface-mount design simplifies assembly and reduces board footprint.

Applications of the MAX358EWE

The MAX358EWE is widely used in industries requiring precise signal routing and multiplexing. Key applications include:

• Data Acquisition Systems: Efficiently routes multiple analog signals to a single ADC for processing.
• Test & Measurement Equipment: Manages complex signal paths in automated test setups.
• Communication Systems: Multiplexes data streams in telecom and networking hardware.
• Industrial Automation: Handles sensor inputs and control outputs in PLCs and robotics.
• Medical Electronics: Used in diagnostic equipment for signal switching.

Why Choose the MAX358EWE Despite Being Obsolete?

While newer alternatives exist, the MAX358EWE remains a trusted choice due to:

• Proven Reliability: Extensive field-tested performance in critical applications.
• Wide Voltage Compatibility: Works seamlessly with legacy and modern systems.
• Fast Switching: Outperforms many contemporary ICs in high-speed scenarios.
• Easy Integration: The 16-SOIC package is widely supported in existing designs.

Availability and Replacement Options

Although the MAX358EWE is discontinued, it is still available through specialized distributors and surplus inventory. For engineers seeking alternatives, we recommend:

• MAX3580E: A newer variant with enhanced features.
• ADG708: Analog Devices alternative with similar specifications.

Contact us today for availability, datasheets, and technical support to ensure seamless integration of the MAX358EWE into your projects.

Conclusion

The MAX358EWE by Analog Devices/Maxim Integrated is a high-performance multiplexer IC that continues to deliver exceptional functionality in demanding applications. Its combination of fast switching, low power consumption, and robust design makes it a preferred choice for engineers worldwide. Whether you re maintaining legacy systems or designing new solutions, the MAX358EWE offers the reliability and performance you need.

For more information, visit our website or reach out to our technical team for personalized assistance. Let us help you find the perfect component for your next project!