DG271BDY

Analog Switches, Multiplexers, Demultiplexers Overview

The DG271BDY is a high-speed quad monolithic SPST CMOS analog switch manufactured by Vishay Siliconix. It features four independent single-pole single-throw switches in a 16-pin narrow SOIC package. The device operates with dual supply voltages ranging from ±4 V to ±20 V, supporting an analog signal range of ±15 V. Key electrical parameters include a maximum on-resistance of 50 Ω at room temperature and 75 Ω across the full industrial temperature range (-40 °C to +85 °C). Turn-on time is specified at a maximum of 65 ns, with turn-off time also capped at 65 ns. Power dissipation for the package is rated at 600 mW.

Analog Switches, Multiplexers, Demultiplexers Feature Summary

• High switching speed with low charge injection for reduced glitches
• TTL and CMOS logic compatible control inputs
• Low leakage currents and low on-resistance for high precision
• Epitaxial layer design prevents latchup

Analog Switches, Multiplexers, Demultiplexers Applications

• Sample/hold circuits
• Digital filters
• Op amp gain switching
• Automatic test equipment
• Flight control systems

Analog Switches, Multiplexers, Demultiplexers Procurement Notes

Verify component authenticity through authorized distributors or direct manufacturer channels. Confirm RoHS compliance status and lead-free termination specifications against current datasheet revisions. Validate that the specific ordering suffix matches the required package type and temperature range before finalizing procurement orders.

Analog Switches, Multiplexers, Demultiplexers Selection Notes

Select this component when fast settling times and low charge injection are critical requirements. Ensure the application voltage does not exceed the ±20 V absolute maximum rating. Verify that the logic input levels align with the TTL/CMOS compatibility thresholds defined in the functional block diagram.

Analog Switches, Multiplexers, Demultiplexers Part Context

This part belongs to the DG271B series of high-speed analog switches. It utilizes Vishay Siliconix's proprietary high-voltage silicon gate process. The device includes a redesigned internal regulator compared to earlier iterations to improve start-up performance.

Analog Switches, Multiplexers, Demultiplexers Replacement Considerations

DG271BCJ-E3 (Plastic DIP variant)

Analog Switches, Multiplexers, Demultiplexers FAQ

What is the maximum power dissipation for the DG271BDY?

The maximum power dissipation for the 16-Pin Plastic Narrow SOIC package is 600 mW.

How does the DG271B handle signals exceeding the supply rails?

Signals on SX, DX, or INX exceeding V+ or V- will be clamped by internal diodes. Forward diode current must be limited to maximum current ratings.

What is the typical charge injection value?

The typical charge injection is 5 pC, measured with CL = 1 nF, VS = 0 V, Vgen = 0 V, and Rgen = 0 Ω.