DG401DY

Analog Switches, Multiplexers, Demultiplexers Overview

The DG401DY is a dual, high-speed analog switch manufactured by Analog Devices Inc./Maxim Integrated. It features two single-pole/single-throw (SPST) normally open switches in a 16-pin Narrow SO package. The device operates from a single +10V to +30V supply or bipolar supplies of ±4.5V to ±20V. Key electrical parameters include a maximum on-resistance of 45 ohms, an on-resistance match between channels of 2 ohms max, and guaranteed on-resistance flatness over the signal range of 3 ohms max. Switching times are 150ns for turn-on and 100ns for turn-off. Charge injection is limited to 15pC max, with off leakage current less than 5nA at +85°C. The operating temperature range is -40°C to +85°C.

Analog Switches, Multiplexers, Demultiplexers Feature Summary

• Dual SPST configuration with low on-resistance matching and guaranteed flatness
• High-speed switching with low charge injection and improved off-leakage characteristics
• Compatible with TTL/CMOS logic levels across wide supply voltage ranges

Analog Switches, Multiplexers, Demultiplexers Applications

• Sample-and-Hold Circuits
• Test Equipment
• Guidance and Control Systems
• Communications Systems
• Audio Signal Routing

Analog Switches, Multiplexers, Demultiplexers Procurement Notes

Verify the specific suffix 'DY' corresponds to the 16-pin Narrow SO package and the -40°C to +85°C temperature grade when sourcing. Confirm RoHS compliance status as manufacturing sources may vary. Ensure the supplier provides official datasheets matching the Analog Devices/Maxim Integrated specifications for accurate parameter validation before integration into designs.

Analog Switches, Multiplexers, Demultiplexers Selection Notes

Select this component for applications requiring dual independent analog signal routing with tight resistance matching. The narrow SOIC package suits space-constrained surface-mount designs. Verify that the required signal voltage swing falls within the specified rail-to-rail capability for the chosen supply voltage. Consider the 150ns switching speed against system timing requirements.

Analog Switches, Multiplexers, Demultiplexers Part Context

The DG401 is part of the Maxim Integrated DG401/DG403/DG405 family of improved, dual, high-speed analog switches. This series was redesigned to offer lower on-resistance matching and reduced charge injection compared to previous industry-standard versions. The DG401 specifically provides two SPST switches, distinguishing it from the DG403 (dual SPDT) and DG405 (dual DPST) variants within the same functional family.

Analog Switches, Multiplexers, Demultiplexers Replacement Considerations

Direct substitutes include the DG401DJ (Plastic DIP package) and DG401CY (Narrow SO package, 0°C to +70°C range). For extended temperature operation, the DG401DK (Plastic DIP, -40°C to +85°C) is available. Verify pin compatibility and thermal performance when substituting packages.