DG403BDY-T1

Analog Switches, Multiplexers, Demultiplexers Overview

The DG403BDY-T1 is a low-power, high-speed CMOS analog switch manufactured by Vishay Siliconix. It features four independent SPST switches in NO/NC combinations within a 16-pin narrow SOIC package. The device supports single or dual power supplies with a maximum rating of 44 V and an analog signal range up to ±15 V. Key electrical parameters include a maximum on-resistance of 45 Ω, turn-on time of 150 ns, and turn-off time of 100 ns. Operating temperature ranges from -40 °C to +85 °C.

Analog Switches, Multiplexers, Demultiplexers Feature Summary

• Four independent SPST switches configured in normally open/normally closed pairs
• TTL and CMOS logic compatible for simple interfacing
• Low leakage current and flat on-resistance over the full analog voltage range
• Single supply capability with wide dynamic range

Analog Switches, Multiplexers, Demultiplexers Applications

• Audio and video switching
• Sample-and-hold circuits
• Test equipment
• PBX and PABX 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. Review datasheet revision history for any updates to absolute maximum ratings or thermal derating requirements before finalizing procurement orders.

Analog Switches, Multiplexers, Demultiplexers Selection Notes

Select this component when four independent analog switching paths are required in a compact surface-mount package. Ensure the application voltage does not exceed the 44 V absolute maximum rating. Verify that the 150 ns switching speed meets system timing constraints and that the 45 Ω on-resistance is acceptable for the load current requirements.

Analog Switches, Multiplexers, Demultiplexers Part Context

This part belongs to the DG401B/DG403B/DG405B series of low-power analog switches. It serves as a modern replacement for legacy DG401/403/405 devices, offering improved performance characteristics such as faster switching speeds and lower power consumption while maintaining compatibility with existing pinouts and applications.

Analog Switches, Multiplexers, Demultiplexers Replacement Considerations

DG403BDY-E3: Lead-free version with identical electrical specifications and pinout configuration.

Analog Switches, Multiplexers, Demultiplexers FAQ

What is the break-before-make behavior of the DG403B?

The DG403B guarantees break-before-make switching action due to its specific NO/NC switch pair configuration, preventing momentary short circuits during state transitions.

How does the DG403B handle input signals exceeding supply rails?

Signals on source (S) or drain (D) terminals exceeding V+ or V- will be clamped by internal diodes. Designers must limit forward diode current to maximum ratings to prevent damage.

What is the typical charge injection value for this device?

The typical charge injection is 60 pC under test conditions of CL = 10,000 pF and Rgen = 0 Ω at room temperature.