DG407DW-E3

Overview

The DG407DW-E3 is a dual 8-channel high-performance CMOS analog multiplexer manufactured by Vishay Siliconix. It selects one of eight differential input pairs to a common differential output using a 4-bit binary address. The device operates with supply voltages ranging from ±5 V to ±20 V or a single 12 V supply, featuring an absolute maximum rating of 44 V. Key electrical parameters include a typical on-resistance of 50 Ω, a transition time of 200 ns, and charge injection of 15 pC. It utilizes a 28-pin widebody SOIC package and supports TTL-compatible control inputs.

Feature Summary

• Break-before-make switching action prevents momentary shorting of inputs during channel transitions.
• An enable (EN) function allows the user to reset all switches to the off state for stacking multiple devices.
• Bilateral channels conduct current equally in both directions and block voltages up to the power supply rails in the off state.

Applications

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

Procurement Notes

Verify component authenticity through authorized distributors or direct manufacturer channels. Confirm RoHS compliance status via official documentation as specifications may vary. Ensure proper handling procedures are followed due to CMOS sensitivity. Validate package markings against datasheet identifiers to prevent counterfeit substitution.

Selection Notes

Select this part for applications requiring differential signal routing with low distortion. Verify that the required supply voltage range fits within the ±5 V to ±20 V limits. Ensure the 28-pin widebody SOIC footprint matches the PCB layout. Consider thermal dissipation requirements if operating near maximum temperature ratings.

Part Context

This component belongs to the DG406/DG407 series of monolithic CMOS analog multiplexers. It serves as a drop-in replacement for older DG506A and DG507A series devices. The series offers improved performance characteristics including lower on-resistance and faster transition times compared to its predecessors.

Replacement Considerations

DG506A and DG507A are confirmed functional equivalents mentioned in official documentation. Verify pin compatibility and electrical parameter alignment before substitution.

FAQ

What is the purpose of the break-before-make switching action?

It protects against momentary shorting of inputs when switching between channels.

How does the Enable (EN) function operate?

It allows the user to reset the multiplexer to all switches off, facilitating the stacking of several devices.

Is the device compatible with TTL logic levels?

Yes, all control inputs, address lines, and the enable input are TTL compatible over the full specified operating temperature range.