DG418DJ+

Analog Switches, Multiplexers, Demultiplexers Overview

The DG418DJ+ is a precision, monolithic CMOS analog switch manufactured by Analog Devices Inc./Maxim Integrated. It features a single-pole/single-throw (SPST) normally open configuration housed in an 8-pin Plastic DIP package. The device operates from a single +10V to +30V supply or bipolar ±4.5V to ±20V supplies. Key electrical specifications include a maximum on-resistance of 35Ω, guaranteed on-resistance matching of 3Ω max, and on-resistance flatness of 4Ω max. Switching times are limited to 175ns for turn-on and 145ns for turn-off. The component supports rail-to-rail signal handling, low charge injection of 10pC max, and offers ESD tolerance of 2000V minimum per Method 3015.7.

Analog Switches, Multiplexers, Demultiplexers Feature Summary

• Guaranteed on-resistance matching between channels and flatness over the signal range
• Low off-leakage current performance maintained over temperature variations
• High electrostatic discharge tolerance capability
• TTL and CMOS logic compatible input interface

Analog Switches, Multiplexers, Demultiplexers Applications

• Sample-and-Hold Circuits
• Communications Systems
• Test Equipment
• Battery-Operated Systems
• Audio Signal Routing

Analog Switches, Multiplexers, Demultiplexers Procurement Notes

Verify the specific ordering suffix 'DJ+' against the manufacturer's official documentation to confirm the plastic DIP package and industrial temperature range (-40°C to +85°C). Ensure compatibility with existing PCB footprints and thermal management requirements before procurement. Cross-reference the part number with the latest datasheet revision to confirm pinout consistency and absolute maximum ratings.

Analog Switches, Multiplexers, Demultiplexers Selection Notes

Select this component when a normally open SPST analog switch is required with tight on-resistance matching specifications. The device is suitable for applications demanding low power consumption and high ESD protection. Consider the operating voltage range and logic compatibility requirements during selection. Verify that the switching speed and leakage current characteristics meet the system's performance criteria.

Analog Switches, Multiplexers, Demultiplexers Part Context

The DG418DJ+ belongs to the DG417/DG418/DG419 family of improved SPST/SPDT analog switches. This series represents a redesigned version of industry-standard CMOS switches, offering enhanced performance metrics such as lower charge injection and better on-resistance flatness compared to previous iterations. The family includes normally closed (DG417), normally open (DG418), and double-throw (DG419) variants.

Analog Switches, Multiplexers, Demultiplexers Replacement Considerations

The DG418CJ+ serves as a direct replacement within the same package type but operates in a commercial temperature range (0°C to +70°C). For extended temperature requirements, verify availability of other DG418 variants with appropriate suffixes. Ensure functional equivalence regarding pinout and electrical characteristics when substituting.