DG412FDJ+

Overview

The DG412FDJ+ is a quad, rail-to-rail, fault-protected CMOS analog switch manufactured by Analog Devices Inc. under the Maxim Integrated brand. It features four independent single-pole single-throw (SPST) channels housed in a 16-pin DIP package. The device supports dual supply voltages ranging from ±4.5 V to ±20 V or a single supply from 9 V to 36 V. Key electrical specifications include a maximum on-resistance of 85 Ohms, a maximum power dissipation of 696 mW, and a maximum supply current of 600 uA. Switching times are specified with a maximum turn-on time of 250 ns and a maximum turn-off time of 125 ns. It operates within a temperature range of -40°C to +85°C.

Feature Summary

• Integrates four independent SPST analog switches for signal routing applications.
• Provides fault protection capabilities to safeguard against overvoltage conditions.
• Supports rail-to-rail signal handling across the full supply voltage range.

Applications

• Data acquisition systems requiring multi-channel signal switching
• Industrial process control instrumentation
• Automotive electronic testing equipment

Procurement Notes

Verify the specific suffix 'DJ+' indicates the 16-pin PDIP package variant when sourcing. Confirm RoHS compliance status through official manufacturer documentation prior to integration. Ensure the supplier provides valid traceability data for the Analog Devices/Maxim Integrated component batch. Cross-reference the part number with the latest datasheet revision to confirm pinout compatibility with existing designs.

Selection Notes

Select this component when four isolated analog channels are required within a single package. The 85 Ohm on-resistance suits general-purpose signal switching rather than high-precision low-voltage drop applications. Verify that the ±20 V dual supply capability aligns with the system's power architecture. Consider the DIP packaging constraints if board space is limited compared to surface-mount alternatives.

Part Context

This part belongs to the DG412F series of analog switches. It shares functional similarities with other devices in the family but differs in package configuration and specific electrical tolerances. The DG412FDJ+ specifically denotes the plastic dual in-line package version, distinguishing it from surface-mount variants like the FDY+. It serves as a discrete solution for multiplexing tasks in mixed-signal environments.

Replacement Considerations

Direct substitutes may include other quad SPST analog switches from the same manufacturer family with compatible pinouts. Verify on-resistance and supply voltage ranges match the original design requirements. Check for equivalent fault protection features if system reliability depends on overvoltage tolerance.