DG445BDY-T1-E3

Analog Switches, Multiplexers, Demultiplexers Overview

The DG445BDY-T1-E3 is a monolithic quad SPST CMOS analog switch manufactured by Vishay Siliconix. It operates within a temperature range of -40 °C to +85 °C and utilizes a 16-pin Narrow SOIC package. Key electrical specifications include a typical drain-source on-resistance (RDS(on)) of 45 Ω, with a maximum of 95 Ω across the full temperature range. The device features a turn-on time (tON) of 300 ns and a turn-off time (tOFF) of 200 ns under dual supply conditions (+/- 15 V). Power consumption is low at 1 mW, with input currents limited to 1 µA. The logic supply voltage (VL) is compatible with TTL/CMOS standards.

Analog Switches, Multiplexers, Demultiplexers Feature Summary

• Low on-resistance for minimal signal error and distortion
• Fast switching action suitable for high-speed data acquisition
• Minimized charge injection for improved sample-and-hold performance
• TTL/CMOS-compatible logic interface for simple system integration

Analog Switches, Multiplexers, Demultiplexers Applications

• Data Acquisition Systems
• Communication Systems
• Automatic Test Equipment
• Medical Instrumentation
• Audio Switching

Analog Switches, Multiplexers, Demultiplexers Procurement Notes

Verify the component authenticity against the official Vishay datasheet document number 72626. Confirm that the ordering suffix matches the specific package and tape/reel configuration required for the assembly process. 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 low power consumption and fast switching speeds are critical requirements. The DG445B variant provides an inverted logic function compared to the DG444B; verify the truth table alignment with the control circuitry. Consider the 16-pin SOIC package dimensions and thermal derating characteristics if the application involves high ambient temperatures or continuous operation near the maximum power dissipation limits.

Analog Switches, Multiplexers, Demultiplexers Part Context

This part belongs to the DG444B/DG445B family of improved quad SPST CMOS analog switches. It serves as an upgrade to the original DG444 and DG445 models, offering enhanced performance through minimized charge injection and lower on-resistance. The device is built using a high-voltage silicon-gate process with an epitaxial layer to prevent latchup, ensuring reliability in various industrial and commercial applications.

Analog Switches, Multiplexers, Demultiplexers Replacement Considerations

The DG444BDY-T1-E3 is a direct functional substitute with non-inverted logic. Other variants in the series include the DG445BDJ-E3 (DIP package) and DG445BDN-T1-E4 (QFN package). Verify pinout compatibility and logic inversion differences before substituting.