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DG419DY+T
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Product Detailed Parameters
- Description：IC SWITCH SPDT X 1 35OHM 8SOIC
- Series：-
- Mfr：Analog Devices Inc./Maxim Integrated
- Package：Tape & Reel (TR),Cut Tape (CT)
- Switch Circuit：SPDT
- Multiplexer/Demultiplexer Circuit：2:01
- 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：-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 DG419DY+T is a single-channel SPDT analog switch manufactured by Analog Devices Inc. under the Maxim Integrated brand. It operates on an enhanced LC2MOS process, supporting single supplies from 10 V to 30 V or dual supplies from ±4.5 V to ±20 V. The device features a maximum on-resistance of 35 Ohms and low leakage current of 250 pA. Switching times are specified with a maximum turn-on time of 175 ns and turn-off time of 145 ns. It is housed in an 8-SOIC surface-mount package and functions within a temperature range of -40°C to +85°C.
Feature Summary
- SPDT configuration with 2:1 multiplexer/demultiplexer circuit topology
- Enhanced LC2MOS process for ultralow power dissipation and high switching speed
- Break-before-make switching action prevents signal shorting during transitions
Applications
- Precision test equipment signal routing
- Battery-powered instrumentation systems
- Sample-and-hold circuits requiring low charge injection
Procurement Notes
Verify the specific suffix 'T' indicates tape-and-reel packaging when sourcing. Confirm RoHS compliance status through official manufacturer documentation, as environmental declarations may vary by production batch. Ensure the SOIC-8 footprint matches the target PCB design constraints before finalizing procurement orders.
Selection Notes
Select this component for applications requiring single-pole double-throw switching with low power consumption. Compare on-resistance specifications against load requirements to ensure signal integrity. Verify that the 35 Ohm Ron does not introduce excessive voltage drop for the intended current levels. Consider the 175 ns switching speed relative to system timing requirements.
Part Context
This part belongs to the DG419 series of precision CMOS analog switches. It serves as a surface-mount alternative to through-hole variants like the DG419LDJ+. The series is characterized by its compatibility with standard logic levels and its ability to handle analog signals across wide supply voltage ranges while maintaining low distortion.
Replacement Considerations
Publicly confirmed substitute part numbers are not available in the provided source material. Cross-reference with other SPDT switches from the same family, such as the DG417, noting differences in channel count and pinout configurations.
