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DG527AK/883B
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Product Detailed Parameters
- Description：IC MUX DUAL 4:1 400OHM 28CERDIP
- Series：-
- Mfr：Harris Corporation
- Package：Bulk
- Switch Circuit：-
- Multiplexer/Demultiplexer Circuit：4:01
- On-State Resistance (Max)：400Ohm
- Channel-to-Channel Matching (ΔRon)：24Ohm
- Voltage - Supply, Single (V+)：44V
- Voltage - Supply, Dual (V±)：±22V
- Switch Time (Ton, Toff) (Max)：1.5µs, 1µs
- -3db Bandwidth：-
- Charge Injection：6pC
- Channel Capacitance (CS(off), CD(off))：10pF, 35pF
- Current - Leakage (IS(off)) (Max)：1nA
- Crosstalk：-
- Operating Temperature：-55°C ~ 125°C
- Mounting Type：Through Hole
- Package / Case：28-CDIP (0.600", 15.24mm)
- Supplier Device Package：28-CERDIP
- Number of Circuits：2
- Grade：-
- Qualification：-
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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.
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
Applications
- Military communication systems requiring reliable signal routing
- Aerospace data acquisition systems operating in extreme temperatures
- Test and measurement equipment demanding high channel isolation
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.
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.
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.
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.
