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DG418CJ
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Product Detailed Parameters
- Description：IC SWITCH SPST-NO X 1 35OHM 8DIP
- Series：-
- Mfr：Analog Devices Inc./Maxim Integrated
- Package：Tube
- Switch Circuit：SPST - NO
- Multiplexer/Demultiplexer Circuit：1:01
- On-State Resistance (Max)：35Ohm
- Channel-to-Channel Matching (ΔRon)：3Ohm (Max)
- Voltage - Supply, Single (V+)：10V ~ 30V
- Voltage - Supply, Dual (V±)：±4.5V ~ 20V
- Switch Time (Ton, Toff) (Max)：175ns, 145ns
- -3db Bandwidth：-
- Charge Injection：3pC
- Channel Capacitance (CS(off), CD(off))：8pF, 8pF
- Current - Leakage (IS(off)) (Max)：250pA
- Crosstalk：-85dB @ 1MHz
- Operating Temperature：0°C ~ 70°C (TA)
- Mounting Type：Through Hole
- Package / Case：8-DIP (0.300", 7.62mm)
- Supplier Device Package：8-PDIP
- Number of Circuits：1
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Overview
The DG418CJ is a single-pole/single-throw (SPST) precision CMOS analog switch manufactured by Analog Devices Inc./Maxim Integrated. It operates from a single +10V to +30V supply or bipolar ±4.5V to ±20V supplies. The device features a maximum on-resistance of 35Ω, guaranteed on-resistance matching of 3Ω, and on-resistance flatness of 4Ω. Switching times are 175ns for turn-on and 145ns for turn-off. It offers low power consumption of 35µW, rail-to-rail signal handling, and TTL/CMOS logic compatibility. The component is housed in an 8-pin Plastic DIP package and operates within a temperature range of 0°C to +70°C.
Feature Summary
- Guaranteed on-resistance matching between channels and flatness over the signal range
- Low charge injection and low off-leakage current performance
- TTL and CMOS logic compatible input levels
- High electrostatic discharge tolerance
Applications
- Sample-and-Hold Circuits
- Communications Systems
- Test Equipment
- Battery-Operated Systems
- Audio Signal Routing
Procurement Notes
Verify the specific ordering suffix 'CJ' corresponds to the 8-pin Plastic DIP package and the commercial temperature range of 0°C to +70°C. Confirm RoHS compliance status as indicated in the manufacturer's documentation. Ensure the source document explicitly identifies the part as DG418CJ to avoid confusion with other variants like DG418DJ or DG418CY which differ in package or temperature rating.
Selection Notes
Select this component when a normally open SPST configuration is required. It is suitable for applications demanding matched on-resistance and low leakage currents. Verify that the operating voltage falls within the specified single or dual supply ranges. Consider the 8-pin DIP package constraints for PCB layout and thermal dissipation requirements relative to the derating curve provided in the datasheet.
Part Context
The DG418CJ belongs to the DG417/DG418/DG419 family of improved precision CMOS analog switches. While the DG417 is normally closed and the DG419 is SPDT, the DG418 provides a single normally open channel. This family shares common fabrication processes and electrical characteristics, differing primarily in switch configuration and pinout assignments for the SPDT variant.
Replacement Considerations
DG418DJ: Same function but extended temperature range (-40°C to +85°C). DG418DK: Same function but ceramic DIP package and extended temperature range (-55°C to +125°C). DG418CY: Same function but SOIC package.
