MAX338MSE/PR3+

Analog Switches, Multiplexers, Demultiplexers Overview

The MAX338MSE/PR3+ is a monolithic CMOS analog multiplexer featuring eight channels. It connects one of eight inputs to a common output via a 3-bit binary address. The device operates from single supplies of +4.5V to +30V or dual supplies of ±4.5V to ±20V. On-resistance is 400Ω max at +25°C and 500Ω across the temperature range. Off-leakage is less than 20pA at +25°C, with charge injection typically 1.5pC. Control inputs are TTL compatible (+0.8V to +2.4V). It functions in an industrial military temperature range of -55°C to +125°C within a 16-pin Narrow SO package.

Analog Switches, Multiplexers, Demultiplexers Feature Summary

• Provides extremely low off-leakage currents and guaranteed low charge injection for high-fidelity signal routing.
• Features robust electrostatic discharge protection exceeding 2000V per method 3015.7.
• Supports bidirectional current flow with on-resistance matching between channels.

Analog Switches, Multiplexers, Demultiplexers Applications

• Data-acquisition systems
• Test equipment
• Military radios
• Guidance and control systems

Analog Switches, Multiplexers, Demultiplexers Procurement Notes

Verify the specific ordering suffix PR3+ against official documentation to confirm tape-and-reel packaging specifications. Ensure the component meets lead-free and RoHS compliance requirements as indicated by the plus sign. Cross-reference the manufacturer's latest datasheet revision history to validate current production status and any potential pinout or electrical characteristic updates before finalizing procurement orders.

Analog Switches, Multiplexers, Demultiplexers Selection Notes

Select this component when an 8-channel multiplexer with wide supply voltage ranges and extended temperature capabilities is required. The narrow SO package offers space efficiency for surface-mount designs. Verify that the 400Ω on-resistance and 500ns switching times align with system bandwidth and latency constraints. Consider the TTL-compatible logic levels for direct interfacing with standard microcontrollers without additional level shifting circuitry.

Analog Switches, Multiplexers, Demultiplexers Part Context

This part belongs to the MAX338/MAX339 family of low-leakage CMOS analog multiplexers manufactured by Analog Devices Inc./Maxim Integrated. The MAX338 variant specifically provides an 8-channel configuration, whereas the MAX339 offers a dual 4-channel setup. Both share identical fabrication processes and core electrical characteristics, differing primarily in channel count and address input requirements.

Analog Switches, Multiplexers, Demultiplexers Replacement Considerations

The MAX338MSE/PR3+ serves as a pin-compatible upgrade for the industry-standard DG508A. Designers replacing legacy components should verify that the new device's leakage and charge injection parameters meet the original design specifications. Alternative Maxim devices like the MAX328 offer lower leakage but higher on-resistance.