DG419CY

Analog Switches, Multiplexers, Demultiplexers Overview

The DG419CY is a precision, monolithic CMOS single-pole/double-throw (SPDT) analog switch manufactured by Analog Devices Inc./Maxim Integrated. It features guaranteed on-resistance matching of 3 Ω maximum and on-resistance flatness of 4 Ω maximum over the signal range. 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 35 Ω, charge injection of 10 pC maximum, and off-leakage current less than 5 nA at +85°C. It provides an ESD tolerance of 2000V minimum per Method 3015.7 and switching times of less than 175 ns for turn-on and 145 ns for turn-off.

Analog Switches, Multiplexers, Demultiplexers Feature Summary

• Guaranteed low on-resistance matching between channels and flatness over the signal range.
• Low power consumption with ultralow off-leakage current performance across temperature ranges.
• High electrostatic discharge (ESD) tolerance capability exceeding 2000V.
• TTL and CMOS logic compatible inputs for flexible interface integration.

Analog Switches, Multiplexers, Demultiplexers Applications

• Sample-and-Hold Circuits
• Precision Test Equipment
• Battery-Operated Systems

Analog Switches, Multiplexers, Demultiplexers Procurement Notes

Verify the specific suffix 'CY' against the manufacturer's ordering information to confirm the 0°C to +70°C commercial temperature range and 8-pin Plastic DIP package configuration. Ensure compatibility with system voltage requirements and logic levels before procurement.

Analog Switches, Multiplexers, Demultiplexers Selection Notes

Select this component when precise channel-to-channel resistance matching is critical for signal integrity. The DG419CY is suitable for applications requiring rail-to-rail signal handling and low distortion in audio or instrumentation paths where bipolar or unbalanced single supplies are utilized.

Analog Switches, Multiplexers, Demultiplexers Part Context

The DG419CY belongs to the DG417/DG418/DG419 series of improved SPST/SPDT analog switches. This series represents a redesign of industry-standard devices, offering enhanced performance metrics such as reduced charge injection and improved leakage characteristics compared to older generations.

Analog Switches, Multiplexers, Demultiplexers Replacement Considerations

The datasheet identifies these devices as plug-in upgrades for industry-standard DG417/DG418/DG419 devices. Verify pinout compatibility and electrical parameter improvements when substituting legacy parts.