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DG401AK
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Product Detailed Parameters
- Description：IC SW SPST-NOX2 35OHM 16CERDIP
- Series：-
- Mfr：Vishay Siliconix
- Package：Tube
- Switch Circuit：SPST - NO
- Multiplexer/Demultiplexer Circuit：1:01
- On-State Resistance (Max)：35Ohm
- Channel-to-Channel Matching (ΔRon)：-
- Voltage - Supply, Single (V+)：13V ~ 36V
- Voltage - Supply, Dual (V±)：±7V ~ 22V
- Switch Time (Ton, Toff) (Max)：150ns, 100ns
- -3db Bandwidth：-
- Charge Injection：60pC
- Channel Capacitance (CS(off), CD(off))：12pF, 12pF
- Current - Leakage (IS(off)) (Max)：250pA
- Crosstalk：-90dB @ 1MHz
- Operating Temperature：-55°C ~ 125°C (TA)
- Mounting Type：Through Hole
- Package / Case：16-CDIP (0.300", 7.62mm)
- Supplier Device Package：16-CERDIP
- Number of Circuits：2
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Overview
The DG401AK is a dual single-pole single-throw (SPST) analog switch manufactured by Vishay Siliconix in a 16-pin ceramic dual-in-line package. It operates within an extended temperature range of -55°C to +125°C and supports supply voltages up to ±22V, with a maximum rating of 44V. The device features a typical on-resistance of 20Ω and a maximum of 45Ω across the full temperature range. Key electrical parameters include a turn-on time of 100ns, leakage current as low as 40pA, and ultra-low power dissipation of 0.35µW.
Feature Summary
- Break-before-make switching action ensures no signal overlap during transitions
- Compatible with TTL and CMOS logic families for simple interfacing
- Epitaxial layer construction prevents latchup under high voltage conditions
- Flat on-resistance profile rivals JFET performance without dynamic range limitations
Applications
- Sample-and-hold circuits requiring precision signal retention
- Audio and video signal routing systems
- Battery-operated portable industrial equipment
- Military-grade test and measurement instrumentation
Procurement Notes
Verify the specific suffix AK indicates the ceramic DIP package and extended military temperature range (-55°C to +125°C). Confirm RoHS compliance status as older manufacturing runs may differ. Ensure the ordering code matches the exact pinout and functional block diagram required for the design.
Selection Notes
Select this component when high voltage tolerance and wide analog signal range are required. The DG401AK provides superior isolation and low charge injection compared to standard plastic packages. Consider thermal derating guidelines if operating near the maximum power dissipation limits in enclosed environments.
Part Context
This part belongs to the DG401/403/405 series of low-power, high-speed CMOS analog switches. While the DG403 offers SPDT configurations and the DG405 provides DPST options, the DG401 specifically delivers two independent SPST switches per package. All variants share the same underlying silicon-gate process technology.
Replacement Considerations
DG401DJ serves as the plastic DIP alternative with a lower temperature range. DG401DY is the narrow SOIC surface-mount equivalent. For hermetic requirements, the DG401AK/883 variant offers Mil-Spec screening within the same ceramic package form factor.
