DG405EY

Overview

The DG405EY is a high-speed analog switch manufactured by Harris Corporation, housed in a 16-lead ceramic dual in-line package (CDIP). It features four independently controlled single-pole double-throw (SPDT) channels. The device operates with a supply voltage range of ±3V to ±20V and supports signal voltages up to the supply rails. Key electrical parameters include a maximum on-resistance of 120Ω and an on-resistance matching of 10Ω between channels. It exhibits a typical turn-on/turn-off time of 100ns and a leakage current of 1nA at +25°C. The component is designed for military-grade reliability with a specified operating temperature range from -55°C to +125°C.

Feature Summary

• Four independent SPDT analog switching channels
• High-speed switching performance suitable for data acquisition systems
• Rail-to-rail signal handling capability
• Military-grade ceramic packaging for harsh environment reliability

Applications

• Data acquisition systems requiring multi-channel signal routing
• Programmable gain amplifiers
• Sample-and-hold circuits
• Communication systems for signal path selection

Procurement Notes

Verify the specific suffix 'EY' against official Harris or successor manufacturer documentation to confirm exact pinout, lead finish, and qualification standards. Ensure compatibility with existing PCB footprints for CDIP-16 packages. Confirm RoHS status if required for modern assembly processes, as legacy military parts may not comply with current environmental directives.

Selection Notes

Select this component when high-speed switching and wide signal voltage ranges are required in a ruggedized form factor. Compare on-resistance stability and channel isolation specifications against alternative CMOS switches if lower power consumption is critical. Verify that the ceramic package size fits within the mechanical constraints of the target enclosure.

Part Context

This part belongs to the Harris DG405 family of high-speed analog switches. It is functionally similar to other industry-standard quad SPDT switches but distinguished by its military-grade construction and specific electrical characteristics defined by Harris Corporation. The device serves as a critical interface component in systems requiring reliable signal multiplexing under extreme conditions.

Replacement Considerations

Direct replacements may include equivalent quad SPDT analog switches from manufacturers such as Analog Devices or Texas Instruments, provided they meet the same voltage, speed, and package requirements. Verify pin compatibility and electrical parameter equivalence before substitution.