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DG419LDY+
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Product Detailed Parameters
- Description：IC SWITCH SPDT X 1 35OHM 8SOIC
- Series：-
- Mfr：Analog Devices Inc./Maxim Integrated
- Package：Tube
- Switch Circuit：SPDT
- Multiplexer/Demultiplexer Circuit：2:01
- 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)：-
- -3db Bandwidth：-
- Charge Injection：15pC
- Channel Capacitance (CS(off), CD(off))：8pF, 8pF
- Current - Leakage (IS(off)) (Max)：250pA
- Crosstalk：-86dB @ 1MHz
- Operating Temperature：-40°C ~ 85°C (TA)
- Mounting Type：Surface Mount
- Package / Case：8-SOIC (0.154", 3.90mm Width)
- Supplier Device Package：8-SOIC
- Number of Circuits：1
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Overview
The DG419LDY+ is a precision CMOS analog switch featuring a single-pole/double-throw (SPDT) configuration with one normally closed and one normally open channel. It provides a maximum on-resistance of 35Ω, guaranteed matching of 3Ω, and flatness of 4Ω. The device operates from a single +9V to +36V supply or dual ±4.5V to ±20V supplies. It supports +3V logic compatibility with thresholds at 0.8V and 2.0V. Switching times are less than 175ns for turn-on and 185ns for turn-off. The component is housed in an 8-pin SOIC package and functions within 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
- Power-Supply Sequencing-Free Operation
- Rail-to-Rail Analog Signal Handling Capability
Applications
- Sample-and-Hold Circuits
- Test Equipment
- Battery-Operated Systems
- Audio Signal Routing
Procurement Notes
Verify the specific ordering suffix against official manufacturer documentation to confirm the exact package type and temperature rating. Confirm RoHS compliance status through authorized distributors or direct manufacturer channels before procurement. Ensure the source document matches the requested part number to avoid discrepancies in pinout or electrical characteristics.
Selection Notes
Select this component when a SPDT analog switch with low on-resistance and high voltage tolerance is required. It is suitable for applications needing +3V logic compatibility without level shifting. Consider the 8-pin SOIC package constraints and thermal dissipation limits during PCB layout. Verify that the signal range fits within the specified single or dual supply rails.
Part Context
The DG419L series belongs to a family of precision CMOS analog switches designed as improved replacements for legacy industry-standard parts. This specific variant offers enhanced performance characteristics such as lower power consumption and guaranteed parameter matching over temperature compared to older generations.
Replacement Considerations
The datasheet identifies the DG419LDY+ as a plug-in upgrade for the standard DG419. Verify pin compatibility and electrical specifications against the original design requirements before substitution.
