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DG442DY+
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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：-40°C ~ 85°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 DG442DY+ is a quad, single-pole/single-throw (SPST) analog switch fabricated using a silicon-gate process. It features four normally open switches with an on-resistance of 85 ohms maximum and on-resistance matching of 4 ohms maximum between channels. The device operates from a single +10V to +30V supply or bipolar ±4.5V to ±20V supplies. Key electrical parameters include turn-on time less than 250ns, turn-off time less than 170ns, charge injection of 10pC maximum, and off-leakage current less than 5nA at +85°C. It provides rail-to-rail signal handling and is compatible with TTL/CMOS logic.
Feature Summary
- Improved on-resistance matching between channels for balanced signal routing
- Guaranteed on-resistance flatness over the entire signal range
- Low power consumption suitable for battery-operated systems
- High electrostatic discharge tolerance per Method 3015.7
Applications
- Sample-and-hold circuits
- Communication systems
- Test equipment
- Battery-operated systems
- Heads-up displays
Procurement Notes
Verify the ordering suffix matches the required temperature range and package type. Confirm lead-free status by checking for the plus symbol in the part number. Ensure the specific variant aligns with the intended operating conditions and pin configuration requirements before finalizing procurement.
Selection Notes
Select this component when low on-resistance and high channel matching are critical. Verify that the supply voltage range meets system requirements. Consider the thermal dissipation limits if multiple channels are active simultaneously. Ensure logic levels are compatible with the control interface.
Part Context
This device belongs to the DG441/DG442 series of improved analog switches. It serves as a direct upgrade to industry-standard versions, offering enhanced performance metrics such as lower charge injection and better leakage characteristics while maintaining pin compatibility.
Replacement Considerations
Check for pin-compatible alternatives within the same family. Verify that substitute parts meet the required on-resistance and switching speed specifications. Ensure the replacement supports the necessary supply voltage range and package dimensions.
