DG409DQ-T1-E3

Analog Switches, Multiplexers, Demultiplexers Overview

The DG409DQ-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, controlled by a 2-bit binary address (A0, A1). The device operates on a single supply 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 charge injection of 20 pC. It features TTL-compatible logic inputs and an enable function for stacking multiple devices. The component is housed in a 16-pin TSSOP package with a specified operating temperature range of -40 °C to +85 °C.

Analog Switches, Multiplexers, Demultiplexers Feature Summary

• Break-before-make switching action prevents momentary crosstalk between adjacent channels.
• TTL-compatible control inputs ensure compatibility across the full operating temperature range.
• Enable pin allows resetting all switches to the off state for stacking multiple devices.

Analog Switches, Multiplexers, Demultiplexers Applications

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

Analog Switches, Multiplexers, Demultiplexers Procurement Notes

Verify that the ordering suffix matches the required specifications. The -T1 suffix indicates tape and reel packaging, while the -E3 suffix confirms lead-free and RoHS compliance. Confirm the package type corresponds to the design requirements before procurement.

Analog Switches, Multiplexers, Demultiplexers Selection Notes

Select this part for applications requiring differential signal multiplexing with low power dissipation. Ensure the supply voltage remains within the 5 V to 36 V single supply or ±5 V to ±20 V dual supply limits. Verify that the 100 Ω maximum on-resistance meets the system's signal integrity requirements.

Analog Switches, Multiplexers, Demultiplexers 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-channel differential configuration instead of an 8-channel single-ended setup. Both utilize a 44 V silicon-gate CMOS process.

Analog Switches, Multiplexers, Demultiplexers Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided documentation. Cross-referencing should be performed using official manufacturer resources to identify compatible alternatives.

Analog Switches, Multiplexers, Demultiplexers FAQ

What is the purpose of the Enable (EN) pin?

The Enable pin allows the user to reset the multiplexer to all switches off, which facilitates stacking several devices to increase the number of input signals in an application.

How does the DG409 handle channel switching?

It utilizes break-before-make switching action, which protects against momentary crosstalk between adjacent channels during transitions.

Is the logic interface compatible with standard digital logic levels?

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