DG444DY-T1

Analog Switches, Multiplexers, Demultiplexers Overview

The DG444DY-T1 is a high-speed quad single-pole single-throw (SPST) analog switch manufactured by Vishay Siliconix. It integrates four independent channels in a 16-pin SOIC package, designed for applications requiring fast switching and low power consumption. The device operates on a single supply voltage ranging from 5 V to 36 V or dual supplies of ±2.5 V to ±20 V. Key electrical specifications include a maximum on-resistance of 85 Ohms, a maximum power dissipation of 640 mW, and a maximum supply current of 1 uA. Switching times are characterized by a maximum turn-on time of 250 ns and a maximum turn-off time of 140 ns. The component supports a continuous DC switch current of 30 mA and functions within an operating temperature range of -40°C to +85°C.

Analog Switches, Multiplexers, Demultiplexers Feature Summary

• Integrates four independent SPST analog switches in a compact surface-mount package
• Supports wide single-supply and dual-supply voltage operation ranges
• Features low static power consumption with minimal supply current draw
• Provides high-speed switching capabilities suitable for signal routing

Analog Switches, Multiplexers, Demultiplexers Applications

• Data acquisition systems requiring multi-channel signal selection
• Audio and video signal routing and switching matrices
• Instrumentation front-end multiplexing
• Industrial control systems for sensor signal conditioning

Analog Switches, Multiplexers, Demultiplexers Procurement Notes

Verify the specific suffix T1 indicates reel packaging when sourcing. Confirm RoHS compliance status through official datasheets as environmental declarations may vary by production batch. Check current lifecycle status as this component may be discontinued or subject to last-time buy restrictions. Ensure the SOIC-16 package footprint matches the target PCB design constraints before procurement.

Analog Switches, Multiplexers, Demultiplexers Selection Notes

Select this component when four independent analog switches are required in a single package. Compare on-resistance values against system signal integrity requirements. Verify that the 85 Ohm maximum on-resistance meets the voltage drop limits for the intended load. Ensure the 30 mA continuous current rating exceeds the maximum expected signal current. Consider thermal dissipation limits given the 640 mW power rating in the SOIC-16 package.

Analog Switches, Multiplexers, Demultiplexers Part Context

This part belongs to the DG series of CMOS analog switches from Vishay Siliconix. The DG444 variant specifically offers quad SPST configuration. It is functionally related to other parts in the DG family such as the DG444BDN-T1-E4 which uses a QFN-16 package. The DG444DY-T1 serves as a legacy option compared to newer enhanced versions with lower resistance or different packaging options.

Analog Switches, Multiplexers, Demultiplexers Replacement Considerations

The DG444BDN-T1-E4 is a confirmed alternative offering similar quad SPST functionality in a QFN-16 package. Verify pinout compatibility between SOIC-16 and QFN-16 packages during substitution. Check if the E4 suffix indicates updated RoHS compliance compared to the original T1 version.