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DG445CJ+
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Product Detailed Parameters
- Description：IC SWITCH SPST-NOX4 85OHM 16DIP
- 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：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 DG445CJ+ is a quad, single-pole/single-throw (SPST) analog switch manufactured by Analog Devices Inc./Maxim Integrated. It features an improved on-resistance matching of 4 Ω max and guaranteed on-resistance flatness over the signal range of 9 Ω max. The device operates from a single +10V to +30V supply or bipolar ±4.5V to ±20V supplies. Key electrical parameters include a maximum drain-source on-resistance of 85 Ω, turn-on time of 250 ns, and turn-off time of 70 ns. It offers low charge injection of 10 pC max, low power consumption of 35 µW max, and ESD tolerance of 2000V min per Method 3015.7. The component is housed in a 16-pin Plastic DIP package with an operating temperature range of 0°C to +70°C.
Feature Summary
- Improved on-resistance matching between channels for enhanced signal integrity
- Guaranteed on-resistance flatness over the entire analog signal range
- Low charge injection characteristics suitable for precision applications
- TTL/CMOS logic compatible control inputs
Applications
- Sample-and-hold circuits
- Test equipment
- Heads-up displays
- Guidance and control systems
- Military radios
Procurement Notes
Verify the specific ordering suffix to confirm the package type and temperature range. The 'CJ' suffix indicates a 16-pin Plastic DIP package with a commercial temperature range of 0°C to +70°C. Ensure compatibility with existing PCB footprints and thermal requirements before procurement. Cross-reference the manufacturer's latest documentation for any potential obsolescence notices or alternate part recommendations.
Selection Notes
Select this component when high channel-to-channel on-resistance matching is required for differential signal paths. The guaranteed flatness ensures consistent performance across the full analog voltage swing. Consider the bipolar supply operation capability if negative signal handling is necessary. Verify that the 85 Ω maximum on-resistance meets the system's voltage drop and power dissipation constraints.
Part Context
The DG445CJ+ belongs to the DG444/DG445 family of improved quad SPST analog switches. It serves as a direct pin-compatible upgrade to industry-standard legacy parts while offering enhanced electrical specifications such as lower charge injection and better resistance matching. The device utilizes a 44V silicon-gate process for robust performance and reliability in various industrial and communication applications.
Replacement Considerations
The DG445CJ is the non-rohs equivalent of the DG445CJ+. For surface mount applications, the DG445DY+ offers the same electrical characteristics in a 16-pin Narrow SOIC package.
