DG441DJ

Analog Switches, Multiplexers, Demultiplexers Overview

The DG441DJ is a quad, single-pole/single-throw (SPST) analog switch manufactured by Analog Devices Inc./Maxim Integrated. It features four normally closed switches with an on-resistance of 85 Ω maximum and an on-resistance match between channels of 4 Ω maximum. The device operates from a single +10V to +30V supply or bipolar ±4.5V to ±20V supplies. Switching times are less than 250ns for turn-on and less than 170ns for turn-off. It guarantees low charge injection of 10pC maximum and withstands electrostatic discharge of 2000V minimum per Method 3015.7.

Analog Switches, Multiplexers, Demultiplexers Feature Summary

• Quad SPST configuration with four normally closed switches
• Low on-resistance matching between channels
• Guaranteed on-resistance flatness over the signal range
• TTL/CMOS logic compatible

Analog Switches, Multiplexers, Demultiplexers Applications

• Sample-and-hold circuits
• Communication systems
• Test equipment
• Battery-operated systems
• Heads-up displays

Analog Switches, Multiplexers, Demultiplexers Procurement Notes

Verify the specific ordering suffix to confirm package type and temperature range. The 'DJ' designation indicates a 16-pin Plastic DIP package with an operating temperature range of -40°C to +85°C. Ensure lead-free specifications are required if applicable, as indicated by the '+' symbol in some part numbers. Confirm availability through authorized distributors.

Analog Switches, Multiplexers, Demultiplexers Selection Notes

Select the DG441DJ when a normally closed SPST configuration is required. Compare against the DG442DJ if normally open switches are needed instead. Consider the bipolar supply operation requirements for guaranteed on-resistance flatness. Verify that the 85 Ω on-resistance meets the application's signal integrity needs.

Analog Switches, Multiplexers, Demultiplexers Part Context

The DG441DJ belongs to the DG441/DG442 series of improved quad SPST analog switches. This series offers redesigned performance characteristics compared to industry-standard predecessors, including better channel matching and lower leakage current. The component is fabricated using a silicon-gate process suitable for various analog switching applications.

Analog Switches, Multiplexers, Demultiplexers Replacement Considerations

The DG442DJ is a functional substitute offering the same package and electrical characteristics but with normally open switches instead of normally closed ones. Other variants within the DG441 family may offer different temperature ranges or packaging options.