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DG418LDJ+
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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)：100mOhm
- Voltage - Supply, Single (V+)：9V ~ 36V
- Voltage - Supply, Dual (V±)：±4.5V ~ 20V
- Switch Time (Ton, Toff) (Max)：175ns, 185ns
- -3db Bandwidth：-
- Charge Injection：15pC
- Channel Capacitance (CS(off), CD(off))：8pF, 8pF
- Current - Leakage (IS(off)) (Max)：250pA
- Crosstalk：-
- Operating Temperature：-40°C ~ 85°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 DG418LDJ+ is a precision CMOS analog switch featuring a single-pole/single-throw (SPST) configuration with a normally open contact. It provides a maximum on-resistance of 35Ω, guaranteed matching between channels at 3Ω max, and flatness within 4Ω max. The device operates from a single +9V to +36V supply or dual ±4.5V to ±20V supplies. It supports turn-on times up to 175ns and turn-off times up to 185ns under dual supply conditions. The digital inputs are compatible with +3V logic levels, utilizing a +0.8V low threshold and a +2.0V high threshold. It is housed in an 8-pin plastic DIP package and rated for operation across an extended temperature range of -40°C to +85°C.
Feature Summary
- +3V Logic-Compatible Digital Inputs
- Plug-In Upgrades for Industry-Standard DG417/DG418/DG419 and MAX317/MAX318/MAX319
- Power-Supply Sequencing-Free Operation
- Rail-to-Rail Analog Signal Handling Capability
Applications
- Sample-and-Hold Circuits
- Communications Systems
- Test Equipment
- Battery-Operated Systems
- Audio Signal Routing
Procurement Notes
Verify the specific suffix LDJ corresponds to the 8-pin Plastic DIP package variant when sourcing replacements. Confirm RoHS compliance status through official manufacturer documentation, as legacy parts may have varying environmental certifications. Ensure the ordering information matches the exact temperature grade and pinout requirements for your design integration.
Selection Notes
Select this component for applications requiring direct replacement of older industry-standard switches without redesigning power sequencing circuits. The +3V logic compatibility simplifies interface with modern microcontrollers operating at lower voltage levels. Consider the 35Ω on-resistance and rail-to-rail signal handling capabilities when evaluating signal integrity requirements for audio or precision measurement paths.
Part Context
This part belongs to the DG417L/DG418L/DG419L family of precision CMOS analog switches manufactured by Analog Devices Inc./Maxim Integrated. The L-series variants were designed to offer improved features over previous generations, specifically focusing on eliminating latch-up issues associated with power-supply sequencing. The DG418L specifically denotes the SPST normally open configuration within this lineup.
Replacement Considerations
DG418DJ
FAQ
Does the DG418LDJ+ require specific power-supply sequencing?
No, the DG418LDJ+ eliminates the need for specific power-supply sequencing, allowing any power-up sequence without risking device latchup.
What is the logic input voltage threshold for the DG418LDJ+?
The device has a +0.8V logic-low threshold and a +2.0V logic-high threshold, ensuring compatibility with +3V TTL and CMOS logic.
Is the DG418LDJ+ available in surface-mount packages?
Yes, while the LDJ suffix indicates an 8-pin Plastic DIP, the DG418L family is also available in 8-pin µMAX and 8-pin SO packages.
