DG212CJ+

Analog Switches, Multiplexers, Demultiplexers Overview

The DG212CJ+ is a quad single-pole single-throw (SPST) analog switch manufactured by Analog Devices Inc./Maxim Integrated. It features four independent CMOS switches in a 16-pin Plastic DIP package, operating within a temperature range of 0°C to +70°C. The device supports continuous power supply voltages from ±4.5V to ±18V and draws a maximum supply current of 400µA. Key electrical parameters include a maximum on-resistance of 175Ω, a maximum turn-on time of 1µs, and a maximum turn-off time of 500ns. The component handles a continuous drain-source current of 20mA and offers high off-isolation.

Analog Switches, Multiplexers, Demultiplexers Feature Summary

• Guaranteed nonlatching operation even when power supplies are disconnected while input signals remain connected.
• Eliminates the need for a separate third logic power supply (VL), simplifying system design.
• Provides monolithic low-power CMOS construction with essentially constant on-resistance across the analog signal range.
• Compatible with both CMOS and TTL logic control inputs.

Analog Switches, Multiplexers, Demultiplexers Applications

• Analog multiplexers
• Programmable gain amplifiers
• Communications systems
• Sample/hold circuits
• Automatic test equipment

Analog Switches, Multiplexers, Demultiplexers Procurement Notes

Verify the specific suffix 'CJ+' against the manufacturer's ordering information to confirm the 16-pin Plastic DIP package and the 0°C to +70°C commercial temperature grade. Ensure compatibility with existing PCB footprints for through-hole mounting. Confirm RoHS compliance status as indicated in the official datasheet documentation before finalizing procurement specifications.

Analog Switches, Multiplexers, Demultiplexers Selection Notes

Select this component when a quad SPST configuration with inverted control inputs relative to the DG201/DG211 series is required. It is suitable for applications needing break-before-make switching characteristics without requiring a dedicated logic supply rail. Consider the ±4.5V to ±18V operating range and 175Ω maximum on-resistance limits when designing signal paths.

Analog Switches, Multiplexers, Demultiplexers Part Context

The DG212CJ+ belongs to the DG202/DG212 family of quad SPST CMOS analog switches. It shares architectural similarities with the DG211 but utilizes inverted control inputs. The 'C' designation indicates the commercial temperature range, while 'J' specifies the plastic DIP package style. This part represents a legacy CMOS technology optimized for low power consumption in portable applications.

Analog Switches, Multiplexers, Demultiplexers Replacement Considerations

The DG202CJ+ serves as a functional substitute within the same family, distinguished by different on-resistance specifications. Other variants such as the DG212DJ offer extended industrial temperature ranges (-40°C to +85°C) in the same package type. Verify pinout compatibility and electrical parameter margins when substituting.

Analog Switches, Multiplexers, Demultiplexers FAQ

How does the DG212 differ from the DG211?

The DG212 features inverted control inputs compared to the DG211, while maintaining similar electrical characteristics and package options.

Is a separate logic supply voltage required for the DG212CJ+?

No, the DG212CJ+ eliminates the need for a third logic power supply (VL) required by earlier versions of this product line.

What happens if the power supplies are turned off while input signals are present?

The device is guaranteed not to latch up under these conditions, preventing potential circuit failure or damage.