DG409DY-T1-E3

Overview

The DG409DY-T1-E3 is a dual 4-channel differential analog multiplexer manufactured by Vishay Siliconix. It connects one of four differential inputs to a common dual output via a 2-bit binary address (A0, A1). The device operates on single supplies from +5 V to +36 V or dual supplies from ±5 V to ±20 V. Key electrical parameters include a maximum on-resistance of 100 Ω, a transition time of 160 ns, and a charge injection of 20 pC. It features TTL-compatible logic, an enable function for stacking, and break-before-make switching. The component is housed in a 16-pin SOIC package with an operating temperature range of -40 °C to +85 °C.

Feature Summary

• Break-before-make switching action prevents momentary crosstalk between adjacent channels.
• TTL-compatible control inputs allow direct interfacing with standard digital logic across the full operating temperature range.
• An enable function allows resetting all switches to the off state, facilitating the stacking of multiple devices.

Applications

• High-speed data acquisition systems
• Audio signal switching and routing
• Automated test equipment (ATE) systems

Procurement Notes

Verify that the ordering suffix matches the required configuration. The '-T1' suffix indicates tape and reel packaging, while '-E3' confirms lead-free and RoHS compliance. Confirm the specific package type and temperature rating align with the design requirements before finalizing procurement.

Selection Notes

Select this part when a dual differential multiplexer is required for applications needing low power dissipation and high performance. Ensure the supply voltage range and channel count meet the system specifications. Verify that the SOIC-16 surface mount package fits the available PCB footprint constraints.

Part Context

This component belongs to the DG4xx series of high-performance CMOS analog multiplexers. It shares functional similarities with the DG408 but provides a dual 4:1 differential configuration instead of an 8:1 single-ended setup. Both are designed using a 44 V silicon-gate CMOS process.

Replacement Considerations

DG409DY-E3

FAQ

What does the 'T1' suffix indicate in the part number?

The 'T1' suffix indicates that the component is supplied in tape and reel packaging.

How does the DG409 handle overvoltage conditions?

Signals on source/drain pins exceeding the supply rails are clamped by internal diodes. External blocking diodes can be added for additional protection.

Is the DG409DY-T1-E3 suitable for battery-operated systems?

Yes, its low power dissipation makes it ideal for battery-operated and remote instrumentation applications.