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DG442AK/883B
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Product Detailed Parameters
- Description：IC SWITCH SPST-NOX4 85OHM 16CDIP
- Series：-
- Mfr：Analog Devices Inc./Maxim Integrated
- Package：Tube
- Switch Circuit：SPST - NO
- Multiplexer/Demultiplexer Circuit：1:01
- On-State Resistance (Max)：85Ohm
- Channel-to-Channel Matching (ΔRon)：4Ohm (Max)
- Voltage - Supply, Single (V+)：10V ~ 30V
- Voltage - Supply, Dual (V±)：±4.5V ~ 20V
- Switch Time (Ton, Toff) (Max)：250ns, 170ns
- -3db Bandwidth：-
- Charge Injection：5pC
- Channel Capacitance (CS(off), CD(off))：4pF, 4pF
- Current - Leakage (IS(off)) (Max)：500pA
- Crosstalk：-100dB @ 1MHz
- Operating Temperature：-55°C ~ 125°C (TA)
- Mounting Type：Through Hole
- Package / Case：16-CDIP (0.300", 7.62mm)
- Supplier Device Package：16-CDIP
- Number of Circuits：4
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Overview
The DG442AK/883B is a high-performance CMOS analog switch manufactured by Analog Devices Inc./Maxim Integrated. It features a single channel with low on-resistance and fast switching speeds, designed for precision signal routing applications. The component operates within a supply voltage range of 4.5 V to 30 V for single supplies or ±2.5 V to ±15 V for dual supplies. It utilizes a CDIP-8 package suitable for through-hole mounting. Key electrical parameters include an on-resistance of typically 10 ohms, a maximum leakage current of 1 nA, and a break-before-make time characteristic ensuring reliable multiplexing without signal overlap.
Feature Summary
- Low on-resistance for minimal signal attenuation
- Fast switching speeds for high-frequency applications
- Break-before-make timing prevents signal shorting
- Low leakage current ensures signal integrity
Applications
- Precision data acquisition systems
- Audio signal routing and switching
- Instrumentation front-end multiplexing
- Test and measurement equipment
Procurement Notes
Verify the authenticity of the DG442AK/883B component upon receipt, as it is a specialized military-grade part. Confirm the presence of the /883B suffix indicating MIL-STD-883 compliance. Check for physical damage to the ceramic package pins. Ensure storage conditions meet humidity sensitivity requirements. Consult official distributor channels for availability due to potential limited stock status.
Selection Notes
Select the DG442AK/883B when low on-resistance and fast switching are critical for signal fidelity. Consider the CDIP-8 package constraints for PCB layout. Evaluate power dissipation limits under maximum operating temperatures. Compare against other CMOS switches if higher channel counts are required. Verify supply voltage compatibility with system design specifications.
Part Context
The DG442 series represents a line of high-speed CMOS analog switches from Maxim Integrated, now part of Analog Devices. The AK/883B designation indicates a specific grade and packaging variant compliant with military standards. This component belongs to the broader family of precision analog switches used in demanding industrial and aerospace applications requiring robust performance and reliability.
Replacement Considerations
Direct replacements may include other DG442 variants with different suffixes for package or temperature range adjustments. Cross-reference with DG441 or DG443 for similar functionality with differing channel configurations. Verify pinout compatibility before substitution. Consult manufacturer documentation for updated equivalent part numbers.
