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DG442CJ
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Product Detailed Parameters
- Description：IC SWITCH SPST-NOX4 85OHM 16DIP
- Series：-
- Mfr：Analog Devices Inc./Maxim Integrated
- Package：Tube,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：Through Hole
- Package / Case：16-DIP (0.300", 7.62mm)
- Supplier Device Package：16-PDIP
- Number of Circuits：4
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Overview
The DG442CJ is a quad, single-pole/single-throw (SPST) analog switch featuring four normally open channels. It operates from a single +10V to +30V supply or bipolar ±4.5V to ±20V supplies. Key electrical parameters include an on-resistance of up to 85 ohms, on-resistance matching of 4 ohms maximum, and on-resistance flatness of 9 ohms maximum over the signal range. The device guarantees low charge injection of 10 picocoulombs maximum and off-leakage current below 5 nanamperes at +85°C. Switching times are less than 250ns for turn-on and 170ns for turn-off. It provides rail-to-rail signal handling and is compatible with TTL/CMOS logic.
Feature Summary
- Four independent normally open SPST analog switches
- Low on-resistance with guaranteed channel matching and flatness
- TTL and CMOS logic interface compatibility
- Rail-to-rail signal handling capability
Applications
- Sample-and-hold circuits
- Communication systems
- Test equipment
- Battery-operated systems
- Audio-signal routing
Procurement Notes
Verify the specific ordering suffix to confirm package type and temperature range. The 'C' suffix indicates commercial grade operation from 0°C to +70°C in a 16-pin plastic DIP. Ensure lead-free specifications are requested if required by adding the '+' symbol to the part number during procurement.
Selection Notes
Select the DG442CJ when normally open switching behavior is required for quad SPST applications. This component is suitable for designs needing rail-to-rail signal handling and TTL/CMOS logic compatibility. Verify that the commercial temperature range meets system requirements before finalizing the selection.
Part Context
This component belongs to the redesigned DG441/DG442 series of improved quad SPST analog switches. While the DG441 features normally closed switches, the DG442 variant specifically provides four normally open switches. Both share identical electrical characteristics regarding on-resistance, leakage, and switching speeds.
Replacement Considerations
The DG441CJ serves as a functional substitute within the same family, differing only in switch state configuration (normally closed versus normally open). Other packages such as the DG442CY offer narrow SOIC options for surface mount requirements.
