DG419LDJ+

Analog Switches, Multiplexers, Demultiplexers Overview

The DG419LDJ+ is a precision CMOS analog switch featuring a single-pole/double-throw (SPDT) configuration housed in an 8-pin plastic DIP package. It provides a maximum on-resistance of 35Ω with guaranteed matching between channels and flatness over the signal range. The device operates from a single +9V to +36V supply or dual ±4.5V to ±20V supplies, supporting rail-to-rail analog signal handling. Key electrical parameters include a maximum turn-on time of 175ns, a maximum turn-off time of 185ns, and a charge injection of 15pC. It maintains low off-leakage current across the extended operating temperature range of -40°C to +85°C.

Analog Switches, Multiplexers, Demultiplexers Feature Summary

• +3V logic-compatible digital inputs ensure compatibility with standard TTL and CMOS logic levels.
• Power-supply sequencing-free operation eliminates the need for specific power-up sequences or external latchup prevention diodes.
• Rail-to-rail analog signal handling capability allows signals to swing fully within the supply voltage range.

Analog Switches, Multiplexers, Demultiplexers Applications

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

Analog Switches, Multiplexers, Demultiplexers Procurement Notes

Verify the complete part number including the suffix against official manufacturer documentation to confirm the specific package type and temperature rating. Ensure that the ordering information matches the required pinout and physical dimensions for your PCB layout. Cross-reference the datasheet revision date to confirm the accuracy of the electrical specifications before finalizing procurement.

Analog Switches, Multiplexers, Demultiplexers Selection Notes

Select this component when a SPDT configuration is required alongside +3V logic compatibility. Verify that the 35Ω on-resistance meets the signal integrity requirements of the application circuit. Confirm that the 8-pin PDIP package fits the available board space and assembly constraints. Check if the extended temperature range aligns with the environmental conditions of the target system.

Analog Switches, Multiplexers, Demultiplexers Part Context

This device belongs to the DG417L/DG418L/DG419L family of improved analog switches. It serves as a direct plug-in upgrade for industry-standard DG417, DG418, and DG419 devices. The L-series designation indicates enhanced features such as power-supply sequencing-free operation and lower power consumption compared to the legacy versions.

Analog Switches, Multiplexers, Demultiplexers Replacement Considerations

The DG419LDJ+ is designed as a drop-in replacement for the legacy DG419 in DIP-8 packages. Verify pin compatibility and check for any differences in absolute maximum ratings or thermal dissipation characteristics when substituting older non-L series parts.