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DG381AAK
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Product Detailed Parameters
- Description：IC SWITCH SPST-NCX2 50OHM 14CDIP
- Series：-
- Mfr：Analog Devices Inc./Maxim Integrated
- Package：Bulk
- Switch Circuit：SPST - NC
- Multiplexer/Demultiplexer Circuit：1:01
- On-State Resistance (Max)：50Ohm
- Channel-to-Channel Matching (ΔRon)：-
- Voltage - Supply, Single (V+)：-
- Voltage - Supply, Dual (V±)：±5V ~ 18V
- Switch Time (Ton, Toff) (Max)：300ns, 250ns
- -3db Bandwidth：-
- Charge Injection：12pC
- Channel Capacitance (CS(off), CD(off))：14pF, 14pF
- Current - Leakage (IS(off)) (Max)：1nA
- Crosstalk：-74dB @ 500kHz
- Operating Temperature：-55°C ~ 125°C (TA)
- Mounting Type：Through Hole
- Package / Case：14-CDIP (0.300", 7.62mm)
- Supplier Device Package：14-CDIP
- Number of Circuits：2
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Overview
The DG381AAK is a dual single-pole single-throw (SPST) CMOS analog switch manufactured by Analog Devices Inc./Maxim Integrated. It operates within a supply voltage range of 10 V to 30 V for single supplies or ±5 V to ±18 V for dual supplies. The device features a maximum on-resistance of 50 Ohms and supports a continuous DC switch current of 30 mA. Switching times are specified with a maximum turn-on time of 300 ns and a maximum turn-off time of 250 ns. It is housed in a 14-pin Ceramic Dual In-Line Package (CDIP) and functions within an operating temperature range of -55°C to +125°C.
Feature Summary
- Dual SPST configuration providing independent signal path control
- High thermal stability suitable for extended industrial environments
- Low power consumption characteristics typical of CMOS technology
Applications
- Military and aerospace instrumentation systems requiring radiation-hardened components
- Harsh environment data acquisition systems
- Test and measurement equipment operating under extreme temperatures
Procurement Notes
Verify the specific suffix 'AK' against official manufacturer documentation to confirm ceramic package and military grade specifications. Confirm availability status as this component may be subject to limited distribution or obsolescence notices. Ensure compliance with relevant defense standards if required for the intended application.
Selection Notes
Select the DG381AAK when high reliability and wide temperature operation are critical. Compare on-resistance and leakage current requirements against other DG381 variants. Verify that the CDIP package fits the mechanical constraints of the target assembly. Consider lifecycle status before finalizing design-in decisions.
Part Context
This component belongs to the DG381A series of general-purpose analog switches. It shares functional similarities with other members like the DG381ACJ+ but differs in packaging and environmental rating. The series is designed for applications requiring robust switching performance in demanding conditions.
Replacement Considerations
Direct substitutes include other DG381A variants such as DG381ACJ+ for commercial use, though package differences exist. Cross-reference with DG387AAK/883B for SPDT configurations in similar packages. Verify pin compatibility and electrical parameters before substitution.
