DG445BDY-E3

Analog Switches, Multiplexers, Demultiplexers Overview

The DG445BDY-E3 is a monolithic quad single-pole single-throw (SPST) CMOS analog switch manufactured by Vishay Siliconix. It operates with dual supplies ranging from ±5 V to ±20 V or a single supply up to 36 V. The device features a typical on-resistance of 45 Ω and maximum turn-on/turn-off times of 300 ns and 200 ns, respectively. It draws a maximum supply current of 1 µA and dissipates up to 640 mW in the SOIC-16 package. The logic input threshold is compatible with TTL and CMOS standards.

Analog Switches, Multiplexers, Demultiplexers Feature Summary

• Monolithic quad SPST configuration for multi-channel signal routing
• High-speed switching action suitable for data acquisition systems
• Minimized charge injection optimized for sample-and-hold applications
• TTL and CMOS-compatible logic control interface

Analog Switches, Multiplexers, Demultiplexers Applications

• Data Acquisition Systems
• Sample-and-Hold Circuits
• Communication Systems
• Automatic Test Equipment
• Medical Instrumentation

Analog Switches, Multiplexers, Demultiplexers Procurement Notes

Verify the specific suffix 'E3' indicates lead-free compliance and RoHS adherence as per Vishay documentation. Confirm the 'BDY' designation corresponds to the 16-pin Narrow SOIC package variant. Ensure the operating environment remains within the specified -40 °C to +85 °C temperature range to maintain guaranteed electrical parameters.

Analog Switches, Multiplexers, Demultiplexers Selection Notes

Select this component when a quad SPST topology is required for low-power analog signal switching. The DG445B variant specifically provides an active-high logic state, contrasting with the DG444B which is active-low. Evaluate the 45 Ω typical on-resistance against signal integrity requirements and ensure the 1 µA supply current meets strict power budget constraints.

Analog Switches, Multiplexers, Demultiplexers Part Context

This part belongs to the DG44xB series, representing upgraded versions of the original DG444/DG445 devices. The 'B' suffix denotes improved performance characteristics such as lower on-resistance and faster switching speeds compared to legacy counterparts. The E3 suffix confirms environmental compliance with modern manufacturing standards.

Analog Switches, Multiplexers, Demultiplexers Replacement Considerations

DG444BDY-E3 serves as a functional substitute with inverted logic polarity. DG445DY-T1-E3 offers identical electrical specifications but utilizes tape-and-reel packaging instead of tubes.