DG418DY-E3

Overview

The DG418DY-E3 is a precision monolithic CMOS analog switch manufactured by Vishay Siliconix, housed in an 8-lead narrow SOIC package. It features a single SPST configuration with normally open logic. The device operates on dual supplies ranging from ±5 V to ±20 V or a single supply up to 40 V. Key electrical parameters include a maximum on-resistance of 35 Ω, a turn-on time of 175 ns, and a turn-off time of 145 ns. It supports an analog signal range of ±15 V and maintains low power consumption with a maximum supply current of 1 μA.

Feature Summary

• Built on high voltage silicon gate process for superior switching performance
• TTL and CMOS compatible digital control logic
• Epitaxial layer prevents latchup under stress conditions
• Low leakage currents and ultra-low power requirements

Applications

• Precision test equipment
• Battery powered systems
• Sample-and-hold circuits
• Military radios

Procurement Notes

Verify the specific suffix 'E3' confirms RoHS compliance during procurement. Confirm the 'DY' designation matches the required 8-pin narrow SOIC surface-mount package. Ensure the component status remains active as manufacturing locations may vary across qualified sites.

Selection Notes

Select the DG418DY-E3 when a normally open SPST configuration is required. This part responds to opposite control logic levels compared to the DG417. Verify that the 35 Ω maximum on-resistance meets the application's signal integrity requirements.

Part Context

This component belongs to the DG417/DG418/DG419 series of precision analog switches. While sharing similar electrical characteristics and packaging options, the DG418 is distinguished by its normally open (NO) configuration, contrasting with the DG417's normally closed (NC) setup.

Replacement Considerations

DG417DY-E3 shares identical specifications but utilizes normally closed logic. DG419DY-E3 offers an SPDT configuration with break-before-make timing.