DG542DY

Analog Switches - Special Purpose Overview

The DG542DY-T1-E3 is a wideband/video switch IC manufactured by Vishay Siliconix, housed in a 16-pin Narrow SOIC package. It features four SPST channels with a 'T' switch configuration for low crosstalk and high off-isolation. The device operates on a D/CMOS process, supporting TTL and CMOS logic compatibility. Key electrical parameters include a maximum bandwidth of 500 MHz, an on-resistance (RDS(on)) of 30 Ω to 60 Ω, and turn-on times of 55 ns to 100 ns. It supports dual supplies ranging from -3 V to +15 V and functions within a temperature range of -40 °C to +85 °C.

Analog Switches - Special Purpose Feature Summary

• Utilizes a proprietary 'T' switch configuration to achieve exceptionally low crosstalk and high off-isolation.
• Built on a D/CMOS process that ensures fast switching speeds and low channel capacitances.
• Features an on-chip regulator circuit that maintains TTL input compatibility across the entire operating supply voltage range.

Analog Switches - Special Purpose Applications

• RF and Video Switching
• RGB Switching
• Video Routing
• Fast Data Acquisition

Analog Switches - Special Purpose Procurement Notes

Verify the specific ordering suffix against the manufacturer's documentation to confirm the exact package type and temperature rating. The '-T1' suffix indicates tape and reel packaging, while '-E3' denotes RoHS compliance. Confirm availability status as manufacturing lifecycles may change without notice.

Analog Switches - Special Purpose Selection Notes

Select this component when bidirectional switching of high-frequency analog or digital signals is required. The DG542 variant specifically offers complementary switching behavior where switches operate in opposite states relative to each other. Ensure the application can accommodate the specified power dissipation limits and decoupling requirements for optimal performance.

Analog Switches - Special Purpose Part Context

This part belongs to the DG540, DG541, and DG542 family of wideband/video switches. While sharing the same core technology and package options, the DG542 differs functionally by providing complementary switching logic compared to the standard SPST operation of the DG540 and DG541 models.

Analog Switches - Special Purpose Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation.

Analog Switches - Special Purpose FAQ

What is the functional difference between the DG542 and the DG541?

The DG542 provides complementary switching logic where switches operate in opposite states (e.g., if SW1 is ON, SW2 is OFF), whereas the DG541 operates all channels independently as standard SPST switches.

How does the 'T' switch configuration benefit signal integrity?

The 'T' switch configuration achieves exceptionally low crosstalk and high off-isolation, which minimizes signal interference between adjacent channels during switching operations.

Is the DG542 compatible with standard TTL logic levels?

Yes, the device includes an on-chip regulator circuit that maintains TTL input compatibility over the whole operating supply voltage range, simplifying control logic interfacing.