DG212BDY

Analog Switches, Multiplexers, Demultiplexers Overview

The DG212BDY is a monolithic quad single-pole single-throw (SPST) CMOS analog switch manufactured by Vishay Siliconix. It features four independent switches in a 16-pin Narrow SOIC package, operating with a supply voltage range of ±4.5 V to ±22 V or a single supply from +4.5 V to +25 V. The device provides a maximum on-resistance of 85 Ω at room temperature and up to 100 Ω across the full industrial temperature range (-40 °C to +85 °C). Key electrical parameters include a turn-on time of 300 ns, a turn-off time of 200 ns, and a charge injection of 1 pC. The component supports continuous current ratings of 30 mA and offers low off-state leakage currents.

Analog Switches, Multiplexers, Demultiplexers Feature Summary

• Normally open configuration where logic high activates the switch path
• TTL and CMOS compatible digital input logic levels
• Epitaxial layer structure designed to prevent latch-up conditions
• True bi-directional signal conduction when activated

Analog Switches, Multiplexers, Demultiplexers Applications

• Industrial instrumentation signal routing
• Test equipment multiplexing
• Sample-and-hold circuits
• Communications systems switching
• Computer peripheral interface control

Analog Switches, Multiplexers, Demultiplexers Procurement Notes

Verify the specific ordering suffix against the manufacturer's official documentation to confirm the exact package type and tape-and-reel specifications. Ensure that the procurement request explicitly identifies the 16-pin Narrow SOIC format to distinguish it from DIP or TSSOP variants within the same product family.

Analog Switches, Multiplexers, Demultiplexers Selection Notes

Select this component for applications requiring normally open SPST switching with TTL-compatible control signals. Verify that the required analog signal swing remains within the specified power supply limits and that the maximum on-resistance meets the circuit's accuracy requirements under the intended operating temperature conditions.

Analog Switches, Multiplexers, Demultiplexers Part Context

This part belongs to the DG211B/DG212B series, which are improved versions of the industry-standard DG211 and DG212 devices. The DG212B variant specifically utilizes normally open logic, contrasting with the DG211B's normally closed configuration. Both share identical pinouts and physical dimensions for drop-in replacement compatibility.

Analog Switches, Multiplexers, Demultiplexers Replacement Considerations

The DG411 series serves as a documented upgrade alternative offering lower on-resistance and faster switching speeds while maintaining pin compatibility.