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DG419C/D
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Product Detailed Parameters
- Description：IC SWITCH SPDT X 1 35OHM DIE
- Series：-
- Mfr：Analog Devices Inc./Maxim Integrated
- Package：Tray
- 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：0°C ~ 70°C (TA)
- Mounting Type：Surface Mount
- Package / Case：Die
- Supplier Device Package：Die
- Number of Circuits：1
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Overview
The DG419C/D is a monolithic CMOS SPDT analog switch manufactured by Analog Devices Inc. and Maxim Integrated, utilizing an enhanced LC2MOS process for high performance. It features a maximum on-state resistance of 35 Ohms and supports single supply voltages from 10V to 30V or dual supplies from ±4.5V to ±20V. The device offers fast switching times with a maximum turn-on time of 175ns and turn-off time of 145ns. Available in 8-pin PDIP and SOIC packages, it provides low power dissipation and ultralow leakage currents suitable for precision applications.
Feature Summary
- Enhanced LC2MOS process technology ensures low power dissipation while maintaining high switching speed and low on-resistance characteristics.
- Break-before-make switching action prevents signal overlap during transitions, ensuring clean signal routing in multiplexing applications.
- Wide analog signal range capability allows operation across the full supply voltage span without signal degradation.
Applications
- Precision test equipment requiring accurate signal routing
- Battery-powered systems benefiting from low power consumption
- Sample-and-hold circuits demanding fast switching speeds
Procurement Notes
Verify the specific suffix (C for PDIP, D for SOIC) against the design schematic to ensure correct package compatibility. Confirm RoHS compliance status through official manufacturer documentation prior to integration. Check current availability as distribution channels may vary by region. Ensure voltage ratings align with system requirements before finalizing procurement decisions.
Selection Notes
Select the DG419C variant for through-hole mounting requirements using the PDIP-8 package. Choose the DG419D variant for surface-mount assembly utilizing the 8-SOIC package. Both variants share identical electrical specifications including the 35 Ohm maximum on-resistance and 175ns switching times. Verify that the operating temperature range meets the environmental constraints of the target application.
Part Context
The DG419 belongs to the family of improved SPST/SPDT analog switches designed for precision applications. It serves as a plug-in replacement for older discrete switching solutions. The component integrates seamlessly into data acquisition systems where low distortion and high isolation are critical. Its compact form factor supports dense circuit board layouts in modern instrumentation designs.
Replacement Considerations
Public confirmed substitute part numbers include ADG419. Verify pinout compatibility and electrical parameters before substitution. Ensure thermal management requirements remain consistent with the original design specifications.
