DG445DY-T1-E3

Analog Switches, Multiplexers, Demultiplexers Overview

The DG445DY-T1-E3 is a monolithic quad single-pole single-throw (SPST) CMOS analog switch manufactured by Vishay Siliconix. It features four independent switches with normally open logic, designed for high-speed and low-error signal switching. The device operates on single supplies from +5 V to +36 V or dual supplies from ±5 V to ±20 V. Key electrical parameters include a maximum drain-source on-resistance of 85 Ω at room temperature, a typical turn-on time of 120 ns, and a maximum turn-off time of 210 ns. It exhibits low charge injection of -1 pC and minimal power consumption.

Analog Switches, Multiplexers, Demultiplexers Feature Summary

• TTL and CMOS compatible digital inputs simplify interfacing with standard logic families.
• High-voltage silicon-gate process with an epitaxial layer prevents latch-up and supports wide supply ranges.
• Minimized charge injection on the drain terminal reduces pedestal errors in sample-and-hold applications.
• Bilateral switch conduction ensures equal performance for AC or bidirectional signals.

Analog Switches, Multiplexers, Demultiplexers Applications

• Sample-and-hold circuits
• Data acquisition systems
• Audio switching
• Battery powered systems

Analog Switches, Multiplexers, Demultiplexers Procurement Notes

Verify the specific ordering suffix 'E3' confirms lead-free status and RoHS compliance as per Vishay standards. Confirm the 'T1' designation indicates reel packaging suitable for automated surface-mount assembly. Ensure the component matches the SOIC-16 narrow package dimensions required for the target PCB footprint.

Analog Switches, Multiplexers, Demultiplexers Selection Notes

Select this part when a normally open configuration is required, distinguishing it from the DG444 which offers a normally closed function. Verify that the 85 Ω on-resistance meets the signal integrity requirements for the specific application voltage range. Ensure the operating temperature range of -40 °C to +85 °C aligns with the environmental conditions of the final system.

Analog Switches, Multiplexers, Demultiplexers Part Context

The DG445 series serves as a direct upgrade to the legacy DG211 and DG212 devices, offering improved switching speeds and lower power consumption. It belongs to the DG family of monolithic CMOS analog switches, sharing functional similarities with the DG444 but differing in logic polarity. The device utilizes advanced silicon-gate technology for enhanced reliability and performance.

Analog Switches, Multiplexers, Demultiplexers Replacement Considerations

DG444DY-T1-E3: Identical specifications except for normally closed logic instead of normally open.

Analog Switches, Multiplexers, Demultiplexers FAQ

What is the difference between the DG444 and DG445?

The DG444 has a normally closed function, while the DG445 has a normally open function. All other electrical characteristics and pinouts are identical.

Does the DG445 support single-supply operation?

Yes, the DG445 supports single-supply operation ranging from +5 V to +36 V, as well as dual-supply operation from ±5 V to ±20 V.

What is the maximum turn-off time for the DG445?

The maximum turn-off time (tOFF) for the DG445 is 210 ns under specified test conditions.