DG221BDJ-E3

Analog Switches, Multiplexers, Demultiplexers Overview

The DG221BDJ-E3 is a quad single-pole, single-throw (SPST) CMOS analog switch with integrated latches. It operates on dual supplies ranging from ±5 V to ±15 V and supports a single supply of 0 V to 30 V. The device features a typical on-resistance of 60 Ω and handles continuous currents up to 20 mA. Key electrical parameters include a maximum turn-on time of 550 ns and a maximum turn-off time of 340 ns. It includes an onboard 5 V regulator for logic compatibility and accepts write pulses as narrow as 150 ns.

Analog Switches, Multiplexers, Demultiplexers Feature Summary

• Integrates independent input latches per channel controlled by a common write pin for memory mapping
• Includes an onboard 5 V regulator to maintain TTL compatibility across wide power supply ranges
• Provides true bidirectional signal switching with low on-resistance and high off-isolation

Analog Switches, Multiplexers, Demultiplexers Applications

• Microprocessor-based systems requiring direct bus interfacing
• Automatic test equipment and data acquisition systems
• Communication systems and medical instrumentation

Analog Switches, Multiplexers, Demultiplexers Procurement Notes

Verify the specific package type and lead finish upon ordering. Confirm that the RoHS-compliant suffix matches project requirements. Check current availability status directly with authorized distributors or the manufacturer. Ensure proper handling procedures are followed during storage and assembly.

Analog Switches, Multiplexers, Demultiplexers Selection Notes

Select this component when microprocessor-controlled switching with built-in state retention is required. The integrated latches eliminate the need for external latch circuits. Verify that the operating voltage range aligns with the system's dual or single supply rails. Consider the thermal dissipation limits if multiple channels are active simultaneously.

Analog Switches, Multiplexers, Demultiplexers Part Context

This part belongs to the DG221B family of quad SPST analog switches manufactured by Vishay Siliconix. It is designed for precision switching in instrumentation and process control applications. The device combines low power consumption with robust performance characteristics suitable for complex data routing tasks.

Analog Switches, Multiplexers, Demultiplexers Replacement Considerations

The DG221BDJ is the non-RoHS equivalent of the DG221BDJ-E3. Other variants in the series include the DG221BDY for surface mount applications. Verify pinout compatibility and electrical specifications before substituting with other analog switch families.