DG211DJ+

Analog Switches, Multiplexers, Demultiplexers Overview

The DG211DJ+ is a quad single-pole single-throw (SPST) analog switch manufactured by Analog Devices Inc./Maxim Integrated. It features a normally closed configuration and operates on dual power supplies ranging from ±4.5V to ±18V. The device utilizes monolithic low-power CMOS technology, eliminating the need for a third logic supply voltage. Electrical specifications include a maximum drain-source ON-resistance of 175 Ohms at ±10V and a maximum turn-on time of 1000ns. It supports continuous currents up to 20mA and peak pulsed currents of 70mA. The component is housed in a 16-pin Plastic DIP package and is rated for an operating temperature range of -40°C to +85°C.

Analog Switches, Multiplexers, Demultiplexers Feature Summary

• Guaranteed break-before-make switching prevents signal overlap during transitions.
• Nonlatching design ensures safe operation even if power supplies are disconnected while input signals remain connected.
• CMOS construction provides compatibility with both TTL and CMOS logic families without requiring additional level-shifting circuitry.

Analog Switches, Multiplexers, Demultiplexers Applications

• Winchester Disk Drives
• Test Equipment
• Communications Systems

Analog Switches, Multiplexers, Demultiplexers Procurement Notes

Verify the specific suffix 'DJ' confirms the 16-pin Plastic DIP package and industrial temperature grade (-40°C to +85°C). Confirm that the ordering code matches the exact manufacturer designation to ensure correct pinout and electrical characteristics relative to other variants in the DG211 family.

Analog Switches, Multiplexers, Demultiplexers Selection Notes

Select this component when a normally closed SPST configuration is required for signal routing. Ensure the application voltage does not exceed the ±18V limit. Consider the 175 Ohm ON-resistance and 1000ns switching speed against system requirements. Verify that the 16-pin DIP footprint aligns with the PCB layout constraints.

Analog Switches, Multiplexers, Demultiplexers Part Context

The DG211 belongs to the DG201A/DG211 family of quad SPST CMOS analog switches. It shares the same physical package and pinout as the DG201A but offers slower switching speeds. The DG211 is designed for applications where lower power consumption and nonlatching behavior are prioritized over high-speed signal switching capabilities.

Analog Switches, Multiplexers, Demultiplexers Replacement Considerations

Public confirmed substitute part numbers: DG211CJ+, DG211EUE+, DG211DY+. These variants share identical electrical characteristics but differ in package type or temperature rating.

Analog Switches, Multiplexers, Demultiplexers FAQ

Does the DG211 require a separate VL supply pin?

No, the Maxim-designed DG211 eliminates the need for the third VL power supply that was required for original manufacturer versions of this device.

What is the default state of the switches?

The DG211 switches are normally closed (NC), meaning the signal path is conductive when the logic input is low.

How does the device handle fault conditions with powered-off supplies?

The device is guaranteed not to latch up if power supplies are disconnected while input signals are still present, preventing unintended current flow through internal diodes.