MAX338CPE

Analog Switches, Multiplexers, Demultiplexers Overview

The MAX338CPE is a monolithic CMOS analog multiplexer featuring eight channels configured as a single 8:1 switch. It connects one of eight inputs to a common output via a 3-bit binary address. The device operates from a single supply voltage ranging from +4.5V to +30V or dual supplies of ±4.5V to ±20V. Key electrical specifications include a maximum on-resistance of 400Ω, typical charge injection of 1.5pC, and off-leakage current below 20pA at +25°C. It provides electrostatic discharge protection exceeding 2000V per method 3015.7. Control inputs are TTL compatible across the full temperature range.

Analog Switches, Multiplexers, Demultiplexers Feature Summary

• Supports bidirectional signal conduction with low on-channel leakage
• Features extremely low off-state leakage currents for high isolation
• Includes enhanced electrostatic discharge protection capabilities
• Maintains TTL-compatible control input levels over wide supply ranges

Analog Switches, Multiplexers, Demultiplexers Applications

• Data acquisition systems requiring multi-channel signal routing
• Process control instrumentation involving sensor switching
• Industrial automation equipment utilizing analog signal multiplexing

Analog Switches, Multiplexers, Demultiplexers Procurement Notes

Verify the specific suffix 'C' indicates the commercial temperature grade (0°C to +70°C) against the official datasheet. Confirm the package type matches the required PCB layout, typically PDIP-16 for this part number. Ensure compatibility with existing design constraints regarding supply voltage and pinout before ordering.

Analog Switches, Multiplexers, Demultiplexers Selection Notes

Select the MAX338CPE when an 8-channel multiplexer with low leakage and robust ESD protection is required. Compare on-resistance values against application needs, as higher performance variants like the MAX328 exist with different trade-offs. Verify that the TTL-compatible logic levels align with the system's control interface requirements.

Analog Switches, Multiplexers, Demultiplexers Part Context

The MAX338 belongs to the Maxim Integrated analog multiplexer family, designed as a pin-compatible upgrade for industry-standard devices like the DG508A. It utilizes a 44V silicon-gate process for reliability. The component serves as a fundamental building block for routing multiple analog signals in electronic systems.

Analog Switches, Multiplexers, Demultiplexers Replacement Considerations

The MAX339CPE is a dual 4-channel variant within the same series. For lower leakage applications, consider the MAX328. Verify pin compatibility and electrical specifications before substituting any alternative components.