DG212BDY-T1

Analog Switches, Multiplexers, Demultiplexers Overview

The DG212BDY-T1 is a quad single-pole single-throw (SPST) normally open analog switch manufactured by Vishay Siliconix. It features four independent channels in a 16-pin Narrow SOIC package. The device supports dual supply voltages ranging from ±4.5 V to ±22 V, or a single supply from +4.5 V to +25 V. Key electrical parameters include a maximum on-resistance of 85 Ω at room temperature and 100 Ω across the full temperature range (-40 °C to +85 °C). Switching times are specified with a maximum turn-on time of 300 ns and a turn-off time of 200 ns. The component exhibits low leakage currents, typically 0.01 nA off-leakage, and minimal charge injection of 1 pC.

Analog Switches, Multiplexers, Demultiplexers Feature Summary

• Normally open configuration for digital control of analog signal paths
• TTL and CMOS compatible logic interface for simplified integration
• Epitaxial layer construction prevents latchup under stress conditions
• Improved charge injection compensation design minimizes switching transients

Analog Switches, Multiplexers, Demultiplexers Applications

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

Analog Switches, Multiplexers, Demultiplexers Procurement Notes

Verify the specific ordering suffix against the manufacturer's current documentation to confirm package type and lead-free status. The 'BDY' designation indicates a 16-pin Narrow SOIC package, while '-T1' denotes tape and reel packaging. Ensure compatibility with RoHS directives if required by the target assembly process. Cross-reference the datasheet revision date to confirm parameter validity.

Analog Switches, Multiplexers, Demultiplexers Selection Notes

Select this component when a normally open analog switch topology is required for signal routing. The DG212B variant differs from the DG211B primarily in its default state; choose DG212B for applications where the signal path must be open upon power-up or logic low input. Verify that the required on-resistance and leakage specifications align with the system's accuracy requirements.

Analog Switches, Multiplexers, Demultiplexers Part Context

The DG212B is part of the improved Quad CMOS Analog Switch family, serving as an enhanced successor to the legacy DG212. It shares architectural similarities with the DG211B but provides a normally open function instead of normally closed. This series is designed for telecommunications, process control, and computer peripheral applications requiring bi-directional signal handling.

Analog Switches, Multiplexers, Demultiplexers Replacement Considerations

The DG211BDY-T1-E3 is a functional substitute within the same family, differing only in the normally closed switch configuration. Direct pin-compatible alternatives may exist in other manufacturers' portfolios, but verification of on-resistance, voltage ratings, and logic thresholds is mandatory.