DG441CY+

Analog Switches, Multiplexers, Demultiplexers Overview

The DG441CY+ is a quad, single-pole/single-throw (SPST) analog switch manufactured by Analog Devices Inc./Maxim Integrated. It features four normally closed switches in a 16-pin Narrow SO package with an operating temperature range of 0°C to +70°C. The device operates from a single +10V to +30V supply or bipolar ±4.5V to ±20V supplies. Key electrical parameters include a maximum on-resistance of 85Ω, on-resistance matching of 4Ω max, and on-resistance flatness of 9Ω max. Switching times are less than 250ns for turn-on and 170ns for turn-off. Charge injection is limited to 10pC max, and off-leakage current is less than 5nA at +85°C.

Analog Switches, Multiplexers, Demultiplexers Feature Summary

• Improved on-resistance matching between channels ensures consistent signal transmission across all four switches.
• Guaranteed on-resistance flatness over the entire signal range maintains linearity for high-fidelity applications.
• Low charge injection minimizes signal distortion during switching transitions.
• Enhanced off-leakage current performance provides better isolation at elevated temperatures.

Analog Switches, Multiplexers, Demultiplexers Applications

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

Analog Switches, Multiplexers, Demultiplexers Procurement Notes

Verify the specific ordering suffix 'CY+' corresponds to the 16-pin Narrow SOIC package and the commercial temperature range (0°C to +70°C). Confirm that the '+' designation indicates lead-free compliance as per manufacturer standards. Ensure the source document explicitly lists this part number to avoid confusion with the standard DG441CY variant.

Analog Switches, Multiplexers, Demultiplexers Selection Notes

Select the DG441CY+ when a normally closed configuration is required for quad SPST switching. Compare its 85Ω on-resistance against lower-resistance alternatives if signal loss is critical. Verify that the 0°C to +70°C temperature range meets the environmental requirements of the target application. Consider the Narrow SO package dimensions for PCB layout constraints.

Analog Switches, Multiplexers, Demultiplexers Part Context

This component belongs to the DG441/DG442 family of improved analog switches. It serves as a direct upgrade to industry-standard predecessors, offering enhanced performance metrics such as reduced charge injection and improved leakage characteristics while maintaining pin compatibility. The DG441 variant specifically provides normally closed contacts, distinguishing it from the DG442's normally open configuration.

Analog Switches, Multiplexers, Demultiplexers Replacement Considerations

The DG441DJ+ is a verified substitute offering the same functionality but with an extended industrial temperature range (-40°C to +85°C) and a Plastic DIP package. Other replacements may exist within the broader DG441 series, but verification of package type and temperature rating is essential for direct interchangeability.