SEARCH
— IC芯片 | 连接器 | 传感器 | 被动器件 —
DG421DY is listed in the Analog Switches, Multiplexers, Demultiplexers range at ChipApex. The manufacturer field lists Analog Devices Inc./Maxim Integrated. Its product description is IC SWITCH SPST-NOX2 35OHM 16SOIC. Review the specifications below when checking this part for your BOM.
The DG421DY is a dual single-pole/single-throw (SPST) CMOS analog switch manufactured by Analog Devices Inc./Maxim Integrated. It operates from a single +10V to +30V supply or bipolar ±4.5V to ±20V supplies, providing rail-to-rail signal handling capabilities. The device features a maximum on-resistance of 35Ω and guarantees an on-resistance match between channels of 3Ω maximum. It includes latchable logic inputs for simplified microprocessor interfacing. The component is housed in a 16-SOIC surface-mount package and supports an operating temperature range of -40°C to +85°C.
Verify the specific suffix 'DY' corresponds to the 16-pin SOIC package and the -40°C to +85°C industrial temperature grade. Confirm RoHS compliance status as the datasheet indicates potential variations based on manufacturing origin. Ensure the source document matches the official Maxim Integrated specifications for accurate parameter validation.
Select this component when designing systems requiring precise analog switching with minimal channel-to-channel resistance variation. The integrated latches are advantageous for applications where control lines must maintain state without continuous refreshing. Verify that the required signal voltage swing remains within the specified rail-to-rail limits of the chosen supply configuration.
This part belongs to the DG421/DG423/DG425 family of improved low-power CMOS analog switches. The DG421 variant specifically provides two independent SPST switches per package. This family was designed to offer enhanced performance over previous generations, particularly regarding on-resistance flatness and charge injection characteristics.
Public confirmed substitute part numbers: None identified in verified documentation.
Explore related parts through Interface, Integrated Circuits (ICs), all product categories, ChipApex homepage.

Understand UART protocol framing, baud rate and electrical interfaces. Learn 8N1 timing, TX/RX wiring, buffering and practical troubleshooting steps.
Read More
DG421DY is listed in the Analog Switches, Multiplexers, Demultiplexers range at ChipApex. The manufacturer field lists Analog Devices Inc./Maxim Integrated. Its product description is…
Read More
Select a common mode choke using noise frequency, current, insulation and signal integrity. Understand impedance curves, layout and filter limitations.
Read More
DG421DY is listed in the Analog Switches, Multiplexers, Demultiplexers range at ChipApex. The manufacturer field lists Analog Devices Inc./Maxim Integrated. Its product description is…
Read More
Compare Hall, shunt, current transformer and Rogowski sensing. Check AC/DC capability, accuracy, isolation, heat and response before selecting a sensor.
Read More
DG421DY is listed in the Analog Switches, Multiplexers, Demultiplexers range at ChipApex. The manufacturer field lists Analog Devices Inc./Maxim Integrated. Its product description is…
Read More
Compare Pt100 and Pt1000 RTDs, two-, three- and four-wire connections, excitation and self-heating. Build an error budget from element to reported temperature.
Read More
Compare SPST and SPDT toggle switches, understand AC/DC ratings, and follow wiring examples. Check contact action, mounting and parts in the ChipApex catalog.
Read More
DG421DY is listed in the Analog Switches, Multiplexers, Demultiplexers range at ChipApex. The manufacturer field lists Analog Devices Inc./Maxim Integrated. Its product description is…
Read More
Find out when a bare shock switch needs a pull resistor, when an MCU internal pull-up is enough, and why sensor modules and piezo…
Read More
Explore electronic component types, functions, packages and datasheets. Learn selection, replacement and BOM checks before ordering parts for your PCB.
Read More-768x745.jpg)
DG421DY is listed in the Analog Switches, Multiplexers, Demultiplexers range at ChipApex. The manufacturer field lists Analog Devices Inc./Maxim Integrated. Its product description is…
Read More