DG527AK/883B

Analog Switches, Multiplexers, Demultiplexers Overview

The DG527AK/883B is a high-speed single-ended multiplexer manufactured by Harris Corporation, designed for military and aerospace applications under MIL-STD-883 Class B screening. This CMOS analog switch features one function with eight channels, housed in a ceramic LCC-20 package (CQCC20). It operates within an extended temperature range of -55°C to +125°C. Key electrical parameters include a maximum on-resistance of 1500 Ω and a typical off-isolation of 68 dB. The device supports dual supply voltages, typically ±15 V, with logic inputs referenced to ground.

Analog Switches, Multiplexers, Demultiplexers Feature Summary

• MIL-STD-883 Class B screened for enhanced reliability in harsh environments
• CMOS technology enabling low power consumption and high speed operation
• Ceramic leadless chip carrier package providing robust physical protection

Analog Switches, Multiplexers, Demultiplexers Applications

• Military communication systems requiring reliable signal routing
• Aerospace data acquisition systems operating in extreme temperatures
• Test and measurement equipment demanding high channel isolation

Analog Switches, Multiplexers, Demultiplexers Procurement Notes

Verify the authenticity of the MIL-STD-883 Class B screening certificate upon receipt. Confirm that the ceramic package integrity matches the CQCC20 specification. Ensure storage conditions prevent moisture ingress prior to baking, as ceramic packages may still require proper handling procedures to maintain hermetic seal performance during soldering or assembly processes.

Analog Switches, Multiplexers, Demultiplexers Selection Notes

Select this component when high channel count and wide temperature tolerance are required. Compare on-resistance stability across the specified voltage range against alternative CMOS multiplexers. Verify that the 20-pin LCC footprint aligns with existing PCB layouts. Consider the 1500 Ω Ron limit for signal attenuation requirements in sensitive analog paths.

Analog Switches, Multiplexers, Demultiplexers Part Context

This part belongs to the Harris Corporation analog switch family, specifically optimized for defense applications. The /883B suffix denotes compliance with specific military quality standards. It serves as a ruggedized alternative to commercial-grade multiplexers, offering superior thermal stability and radiation hardness characteristics suitable for long-duration space or tactical deployments.

Analog Switches, Multiplexers, Demultiplexers Replacement Considerations

Direct replacements must match the 8-channel CMOS architecture and LCC-20 ceramic package. Verify pin compatibility with existing designs. Check if alternative manufacturers offer equivalent MIL-STD-883 screening levels. Ensure voltage ratings and temperature ranges meet or exceed the original specifications.