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DG333ALDW
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Product Detailed Parameters
- Description：IC SWITCH SPDT X 4 45OHM 20SOIC
- Series：-
- Mfr：Vishay Siliconix
- Package：Tube
- Switch Circuit：SPDT
- Multiplexer/Demultiplexer Circuit：2:01
- On-State Resistance (Max)：45Ohm
- Channel-to-Channel Matching (ΔRon)：2Ohm (Max)
- Voltage - Supply, Single (V+)：5V ~ 40V
- Voltage - Supply, Dual (V±)：±4V ~ 22V
- Switch Time (Ton, Toff) (Max)：175ns, 145ns
- -3db Bandwidth：-
- Charge Injection：10pC
- Channel Capacitance (CS(off), CD(off))：8pF
- Current - Leakage (IS(off)) (Max)：250pA
- Crosstalk：-80dB @ 1MHz
- Operating Temperature：-40°C ~ 85°C (TA)
- Mounting Type：Surface Mount
- Package / Case：20-SOIC (0.295", 7.50mm Width)
- Supplier Device Package：20-SOIC
- Number of Circuits：4
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Overview
The DG333ALDW is a precision quad single-pole double-throw (SPDT) analog switch manufactured by Vishay Siliconix. It integrates four independently controlled switches in a 20-pin wide-body SOIC package. The device supports dual supply voltages ranging from ±4 V to ±22 V and single supplies up to 40 V. Key electrical parameters include a maximum on-resistance of 45 Ω, a maximum turn-on time of 175 ns, and a maximum turn-off time of 145 ns. It features low leakage current of 20 pA typical and charge injection of 10 pC maximum. The component operates within a temperature range of -40 °C to +85 °C.
Feature Summary
- Four independently controlled SPDT analog switches for precise signal routing
- Low on-resistance and low leakage characteristics to minimize measurement errors
- Micro-power operation capability suitable for battery-powered systems
- CMOS technology ensuring high input impedance and low power consumption
Applications
- Audio switching
- Test equipment
- Portable instrumentation
- Communication systems
- Switched-capacitor networks
Procurement Notes
Verify the specific ordering suffix to confirm the tape and reel packaging format, as indicated by the '-T1' designation in the official datasheet. Confirm RoHS compliance status through the manufacturer's documentation. Ensure the design accommodates the specified thermal derating requirements above 75 °C to maintain reliability within the operating temperature limits.
Selection Notes
Select this component when a quad SPDT configuration with precision matching is required. The DG333AL variant offers significantly lower supply current compared to the standard DG333A, making it appropriate for low-power applications. Verify that the signal voltage range falls within the absolute maximum ratings relative to the chosen supply rails.
Part Context
This part belongs to the DG333A/DG333AL family of precision analog switches. It shares functional similarities with other members of the series but differs in packaging and specific power characteristics. The 'DW' suffix denotes the 20-pin wide-body SOIC package, while 'AL' indicates the low-power version optimized for reduced supply current consumption.
Replacement Considerations
DG333ADW-E3
FAQ
What is the difference between DG333A and DG333AL?
The DG333AL features micro-power operation with a typical positive supply current of 1 μA, whereas the DG333A has a higher typical supply current of 200 μA. Both share identical analog switch performance specifications.
How are the switches configured logically?
The device contains four independent SPDT switches. A logic '1' turns on switches SW2, SW3, SW6, and SW7 (Normally Closed), while turning off SW1, SW4, SW5, and SW8 (Normally Open). Conversely, logic '0' reverses these states.
What is the maximum break-before-make time delay?
The datasheet specifies a minimum break-before-make time delay of 5 ns at room temperature. This ensures that one switch opens before the other closes during transitions.
