MAX338ETE+T

Analog Switches, Multiplexers, Demultiplexers Overview

The MAX338ETE+T is an 8-channel CMOS analog multiplexer in a 16-pin TQFN-EP package. It operates from single supplies of +4.5V to +30V or dual supplies of ±4.5V to ±20V. Key electrical parameters include a maximum on-resistance of 400Ω at +25°C and 500Ω across the full temperature range, with channel matching of 4Ω to 15Ω. Off-leakage current is less than 20pA at +25°C, and charge injection is typically 1.5pC. The device supports transition times up to 500ns and features TTL-compatible logic inputs.

Analog Switches, Multiplexers, Demultiplexers Feature Summary

• Extremely low off-leakage and on-channel leakage currents for high-precision signal routing
• Guaranteed low charge injection to minimize signal distortion during switching
• ESD protection exceeding 2000V per Method 3015.7 for enhanced robustness
• TTL-compatible control inputs ensuring direct interface with standard logic families

Analog Switches, Multiplexers, Demultiplexers Applications

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

Analog Switches, Multiplexers, Demultiplexers Procurement Notes

Verify the specific suffix ETE+ corresponds to the -40°C to +85°C temperature range and the 16-pin TQFN-EP (5mm x 5mm) package configuration. Confirm RoHS compliance status as indicated by the plus sign in the part number. Ensure the exposed pad connection requirements are met during PCB layout to maintain thermal and electrical performance standards.

Analog Switches, Multiplexers, Demultiplexers Selection Notes

Select this component when low leakage and high voltage tolerance are required. The MAX338ETE+T serves as a pin-compatible upgrade for industry-standard DG508A devices. Consider the MAX328 or MAX329 if lower leakage and charge injection are prioritized over higher on-resistance values. Verify supply voltage compatibility with single or bipolar configurations before integration.

Analog Switches, Multiplexers, Demultiplexers Part Context

The MAX338ETE+T belongs to the MAX338/MAX339 family of monolithic CMOS analog multiplexers. This series is designed to connect multiple inputs to a common output using binary address controls. The MAX338 variant specifically provides eight channels, distinguishing it from the dual four-channel MAX339. Both share similar fabrication processes and electrical characteristics within their respective channel counts.

Analog Switches, Multiplexers, Demultiplexers Replacement Considerations

The MAX338ETE+T is documented as a pin-compatible upgrade for the DG508A. Designers replacing legacy parts should verify that the new device's on-resistance and leakage specifications meet the original circuit requirements.