DG212BDJ

Analog Switches, Multiplexers, Demultiplexers Overview

The DG212BDJ is a quad single-pole single-throw (SPST) analog switch manufactured by Vishay Siliconix in a 16-pin plastic DIP package. It operates 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 features a maximum on-resistance of 85 Ω at room temperature and up to 100 Ω across the full operating temperature range (-40 °C to +85 °C). Key electrical specifications include a turn-on time of 300 ns, turn-off time of 200 ns, charge injection of 1 pC, and an input current of 1 µA. The continuous current rating is 30 mA.

Analog Switches, Multiplexers, Demultiplexers Feature Summary

• Improved CMOS technology providing lower on-resistance, leakage, and power consumption compared to standard DG211/DG212 devices.
• TTL and CMOS compatible logic interface for simple control integration.
• Epitaxial layer design prevents latch-up under stress conditions.
• True bi-directional signal handling capability in the on state.

Analog Switches, Multiplexers, Demultiplexers Applications

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

Analog Switches, Multiplexers, Demultiplexers Procurement Notes

Verify the specific ordering suffix to confirm the package type and lead finish. The base part number DG212BDJ corresponds to the 16-pin Plastic DIP variant. Ensure the selected component meets RoHS compliance requirements if applicable, typically indicated by an -E3 suffix in related variants. Confirm the manufacturer source directly through authorized channels to guarantee authenticity and traceability.

Analog Switches, Multiplexers, Demultiplexers Selection Notes

Select the DG212BDJ when a normally open SPST configuration is required within a quad switch array. Compare the 85 Ω on-resistance against application signal integrity needs. Verify that the ±22 V supply rating aligns with the system's analog signal swing requirements. Consider the 300 ns switching speed for timing-sensitive applications.

Analog Switches, Multiplexers, Demultiplexers Part Context

The DG212BDJ belongs to the DG211B/DG212B series, which are improved versions of the industry-standard DG211 and DG212 analog switches. While the DG211B is a normally closed switch, the DG212B functions as a normally open switch. Both share identical pinouts and electrical characteristics, differing only in their default logic states.

Analog Switches, Multiplexers, Demultiplexers Replacement Considerations

The DG211BDJ serves as a functional substitute if the normally closed configuration is acceptable. Other packages in the same family, such as DG212BDY (SOIC) or DG212BDQ (TSSOP), offer surface-mount alternatives with identical electrical performance.

Analog Switches, Multiplexers, Demultiplexers FAQ

What is the difference between DG211B and DG212B?

The primary difference is the switch configuration: the DG211B is a normally closed switch, while the DG212B is a normally open switch. They share the same pinout and electrical specifications.

What is the maximum supply voltage for the DG212BDJ?

The device supports a dual supply voltage range of ±4.5 V to ±22 V, or a single supply voltage range of +4.5 V to +25 V.

Does the DG212BDJ support TTL logic levels?

Yes, the device features TTL and CMOS compatible logic inputs, allowing direct interfacing with standard digital logic families.