DG201BDY

Analog Switches, Multiplexers, Demultiplexers Overview

The DG201BDY is a quad single-pole single-throw (SPST) analog switch manufactured by Vishay Siliconix in a 16-pin narrow SOIC package. It operates with dual supplies ranging from ±4.5 V to ±22 V or a single supply from +4.5 V to +25 V. The device features a maximum on-resistance of 85 Ω at room temperature and up to 200 Ω across the full operating range (-40 °C to +85 °C). Switching times are specified as a maximum turn-on time of 300 ns and turn-off time of 200 ns within the commercial temperature range. The component supports continuous current ratings of 30 mA and includes an epitaxial layer to prevent latchup.

Analog Switches, Multiplexers, Demultiplexers Feature Summary

• Normally closed SPST configuration for signal path control
• TTL and CMOS compatible logic interface
• Epitaxial layer design prevents latchup

Analog Switches, Multiplexers, Demultiplexers Applications

• Sample-and-hold circuits
• Industrial instrumentation
• Test equipment
• Communications systems

Analog Switches, Multiplexers, Demultiplexers Procurement Notes

Verify the specific ordering suffix against the manufacturer's documentation to confirm compliance status and packaging type. The base model DG201BDY corresponds to the standard plastic DIP or SOIC variants depending on the exact suffix provided. Confirm that the required temperature range and RoHS compliance align with project specifications before finalizing procurement.

Analog Switches, Multiplexers, Demultiplexers Selection Notes

Select this component when a normally closed analog switch topology is required for signal routing. Ensure the application voltage does not exceed the ±22 V dual supply limit. Verify that the 85 Ω on-resistance meets the signal integrity requirements, noting that resistance increases at higher temperatures. Consider the 300 ns switching speed for timing-sensitive designs.

Analog Switches, Multiplexers, Demultiplexers Part Context

The DG201B series represents an improved version of the industry-standard DG201A, offering lower on-resistance, reduced leakage, and faster switching speeds. It belongs to the DG20x family of quad CMOS analog switches designed for telecommunications and process control applications. The 'D' suffix indicates the -40 °C to +85 °C temperature range, while 'Y' denotes the narrow SOIC package.

Analog Switches, Multiplexers, Demultiplexers Replacement Considerations

DG201BDJ-E3: Same electrical characteristics in a PDIP package.

Analog Switches, Multiplexers, Demultiplexers FAQ

What is the default state of the DG201BDY switch?

The DG201B is a normally closed switch, meaning the channel is ON when the logic input is low.

Does the DG201BDY support single-supply operation?

Yes, it can operate with a single supply voltage ranging from +4.5 V to +25 V.

What is the maximum power dissipation for the SOIC package?

The maximum power dissipation for the 16-pin narrow SOIC package is 640 mW.