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DG442CY
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Product Detailed Parameters
- Description：IC SWITCH SPST-NOX4 85OHM 16SOIC
- 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：0°C ~ 70°C (TA)
- Mounting Type：Surface Mount
- Package / Case：16-SOIC (0.154", 3.90mm Width)
- Supplier Device Package：16-SOIC
- Number of Circuits：4
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Overview
The DG442CY is a quad, single-pole/single-throw (SPST) analog switch featuring four normally open switches. It operates from a single +10V to +30V supply or bipolar ±4.5V to ±20V supplies. Key electrical parameters include an on-resistance of 85Ω maximum, on-resistance matching of 4Ω maximum, and on-resistance flatness of 9Ω maximum over the signal range. Switching times are less than 250ns for turn-on and 170ns for turn-off. The device guarantees low charge injection of 10pC maximum and off-leakage current below 5nA at +85°C. It is housed in a 16-pin Narrow SO package with an operating temperature range of 0°C to +70°C.
Feature Summary
- Quad SPST configuration with four normally open switches
- Low on-resistance with guaranteed matching and flatness
- TTL/CMOS logic compatible input structure
- Rail-to-rail signal handling capability
Applications
- Sample-and-hold circuits
- Audio-signal routing
- Communication systems
- Test equipment
Procurement Notes
Verify the specific ordering suffix 'CY' corresponds to the 16-pin Narrow SO package and the 0°C to +70°C commercial temperature grade. Confirm lead-free status if required by adding the '+' symbol to the part number. Ensure the application environment remains within the specified voltage and temperature limits to maintain performance specifications.
Selection Notes
Select this component when a normally open analog switch configuration is required. The DG442 differs from the DG441, which features normally closed switches. Consider the 85Ω on-resistance and switching speeds against system requirements. Verify that the narrow SO package dimensions fit the PCB layout constraints compared to DIP alternatives.
Part Context
The DG442 is part of the redesigned DG441/DG442 series fabricated using a silicon-gate process. It serves as the normally open counterpart to the DG441. The CY suffix specifically denotes the narrow SOIC package variant within the commercial temperature range family, distinct from the plastic DIP (CJ) or extended temperature (DJ/DY) options.
Replacement Considerations
Direct pin-compatible replacements within the same family include the DG442CJ (Plastic DIP) and DG442DY (Narrow SO, Extended Temperature). For normally closed applications, the DG441 series is the functional alternative.
