DG409LDY-E3

Analog Switches, Multiplexers, Demultiplexers Overview

The DG409LDY-E3 is a dual 4-channel differential analog multiplexer manufactured by Vishay Siliconix. It operates on single supplies from 2.7 V to 12 V or dual supplies of ±3 V to ±6 V. The device connects one of four differential inputs to a common dual output via a 2-bit binary address (A0, A1). Key electrical parameters include a typical on-resistance of 17 Ω, enable turn-on time of 38 ns, and enable turn-off time of 18 ns. Leakage current is limited to 1 nA maximum at room temperature. It features break-before-make switching, 2000 V ESD protection, and operates within a -40 °C to +85 °C temperature range in a 16-pin SOIC package.

Analog Switches, Multiplexers, Demultiplexers Feature Summary

• Pin-for-pin compatible with industry standard DG408 and DG409 devices
• Guaranteed break-before-make switching action prevents momentary crosstalk between adjacent channels
• Low charge injection of 1 pC minimizes signal distortion during switching events
• Supports TTL, CMOS, and LV logic interfaces for simplified control integration

Analog Switches, Multiplexers, Demultiplexers Applications

• Data acquisition systems
• Battery operated equipment
• Portable test equipment
• Sample and hold circuits
• Audio and video signal routing

Analog Switches, Multiplexers, Demultiplexers Procurement Notes

Verify the specific suffix 'E3' confirms RoHS compliance when sourcing this component. Confirm that the 'DY' designation matches the required 16-pin narrow SOIC package dimensions for your PCB layout. Ensure the operating voltage requirements align with the specified 2.7 V to 12 V single supply range.

Analog Switches, Multiplexers, Demultiplexers Selection Notes

Select the DG409LDY-E3 when differential signal routing is required within a compact surface-mount footprint. This part is suitable for low-voltage applications where power consumption must be minimized due to its microampere-level supply current. Verify that the 17 Ω typical on-resistance meets the signal integrity requirements of your specific circuit design.

Analog Switches, Multiplexers, Demultiplexers Part Context

This component belongs to the DG408L/DG409L series, which are low-voltage improvements over the legacy DG408/DG409 parts. While the DG408L provides an 8-channel single-ended configuration, the DG409L specifically offers dual 4-channel differential multiplexing capabilities. Both share identical pinouts and BiCMOS fabrication technology.

Analog Switches, Multiplexers, Demultiplexers Replacement Considerations

DG409LDY-T1-E3

Analog Switches, Multiplexers, Demultiplexers FAQ

What is the maximum analog signal range for the DG409LDY-E3?

The analog signal range extends from V- to V+, allowing it to handle signals across the entire supply voltage span.

How does the DG409LDY-E3 prevent crosstalk between channels?

It utilizes guaranteed break-before-make switching action, which ensures that the previous channel disconnects before the new channel connects.

What logic levels are compatible with the digital control inputs?

The device supports TTL, CMOS, and LV logic (3 V) compatibility, with defined thresholds for logic high and low states relative to the positive supply voltage.