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DG441AK
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Product Detailed Parameters
- Description：IC SW SPST-NCX4 85OHM 16CERDIP
- Series：-
- Mfr：Vishay Siliconix
- Package：Tube
- Switch Circuit：SPST - NC
- Multiplexer/Demultiplexer Circuit：1:01
- On-State Resistance (Max)：85Ohm
- Channel-to-Channel Matching (ΔRon)：4Ohm (Max)
- Voltage - Supply, Single (V+)：12V
- Voltage - Supply, Dual (V±)：±15V
- Switch Time (Ton, Toff) (Max)：250ns, 120ns
- -3db Bandwidth：-
- Charge Injection：-1pC
- 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-CERDIP
- Number of Circuits：4
- Grade：-
- Qualification：-
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Overview
The DG441AK is a quad single-pole single-throw (SPST) CMOS analog switch manufactured by Vishay Siliconix. It features a normally closed logic configuration and operates within a temperature range of -55°C to +125°C. The device utilizes a 16-pin Ceramic Dual In-Line Package (CerDIP). Key electrical specifications include a maximum drain-source on-resistance of 85 Ω, a typical turn-on time of 150 ns, and a charge injection of -1 pC. It supports dual supply voltages up to ±15 V or a single supply up to 12 V, with a continuous current rating of 30 mA per terminal.
Feature Summary
- Normally closed SPST configuration for signal routing
- High-voltage silicon-gate process with latchup protection
- TTL and CMOS compatible logic inputs
- Minimized charge injection optimized for sample-and-hold applications
Applications
- Sample-and-hold circuits
- Hi-Rel systems
- Data acquisition systems
- Automatic test equipment
Procurement Notes
Verify the specific suffix 'AK' corresponds to the military-grade CerDIP package and extended temperature range (-55°C to +125°C). Confirm RoHS compliance status as older manufacturing runs may differ. Ensure the ordering part number matches the exact datasheet revision required for your design specifications.
Selection Notes
Select this component when a normally closed analog switch topology is required. The DG441AK offers superior switching speed compared to legacy DG201A devices. Consider the 16-pin CerDIP package constraints for thermal management and board space. Verify that the 85 Ω on-resistance meets the signal integrity requirements of the target application.
Part Context
The DG441AK belongs to the DG441/442 family of monolithic quad analog switches. While the DG441 provides a normally closed function, the DG442 variant offers a normally open configuration. Both share identical pinouts and core performance characteristics, differing primarily in their default logic states.
Replacement Considerations
Public confirmed substitute: ADG221KNZ (Analog Devices Inc.).
FAQ
What is the default state of the DG441AK switches?
The DG441AK features a normally closed (NC) function, meaning the switches are conductive when the logic input is low.
What is the maximum power dissipation for the DG441AK?
The maximum power dissipation for the 16-pin CerDIP package is 900 mW.
Does the DG441AK support single-supply operation?
Yes, the device supports single-supply capability, typically operating with V+ at 12 V and V– at 0 V.
