MAX384EWN

Overview

The MAX384EWN is a dual 4-channel analog multiplexer manufactured by Analog Devices Inc./Maxim Integrated. It operates on a single supply from +2.7V to +16.5V or dual supplies from ±3V to ±8V. The device features latchable digital inputs and low on-resistance of 100Ω max, matched within 4Ω between channels. It offers off-leakage less than 2.5nA at +85°C and guaranteed charge injection of 10pC max. ESD protection exceeds 2000V per Method 3015.7. It is housed in an 18-SOIC package.

Feature Summary

• Pin-compatible with industry-standard DG428/DG429, DG528/DG529, and MAX368/MAX369
• Supports both single-supply (+2.7V to +16.5V) and bipolar supply (±3V to ±8V) operation
• Features latchable digital inputs for simplified microprocessor bus interfacing
• TTL/CMOS-logic compatible with low power consumption

Applications

• Battery-operated systems
• Audio signal routing
• Low-voltage data-acquisition systems
• Sample-and-hold circuits
• Automatic test equipment

Procurement Notes

Verify the component status as discontinued before procurement planning. Confirm that the 18-SOIC package matches your PCB footprint requirements. Ensure compatibility with existing system voltage rails, specifically checking if single or dual supply configurations are needed. Review absolute maximum ratings to prevent damage during power sequencing. Check for available replacement components if long-term availability is required.

Selection Notes

Select this component when pin compatibility with legacy DG428/DG429 designs is necessary. Choose it for applications requiring latchable inputs to reduce microprocessor overhead. Consider its low on-resistance and matching characteristics for precision signal switching. Evaluate its low leakage and charge injection specs for sensitive analog paths. Verify that the operating temperature range meets environmental constraints.

Part Context

The MAX384EWN belongs to the MAX382/MAX384 family of low-voltage CMOS multiplexers. It serves as the dual 4-channel variant of the MAX382 8-channel mux. Designed for general-purpose analog signal switching, it bridges older industry standards with modern low-voltage requirements. Its latchable architecture simplifies control logic in embedded systems.

Replacement Considerations

Direct pin-compatible substitutes include the DG428, DG429, DG528, DG529, MAX368, and MAX369. Verify electrical specifications such as on-resistance and leakage against these alternatives to ensure functional equivalence in the specific application.