ADG442ABR

Analog Switches, Multiplexers, Demultiplexers Overview

The ADG442ABR is a monolithic CMOS device comprising four independently selectable SPST switches fabricated on an enhanced LC2MOS process. It operates with dual supplies ranging from ±5 V to ±15 V or a single supply up to 12 V, featuring a maximum on-resistance of 70 Ω and low leakage currents of 3 nA max. The device supports fast switching times with tON < 110 ns and tOFF < 60 ns, ensuring minimal charge injection of 6 pC max. Designed for industrial temperatures between -40°C and +85°C, it offers high linearity and low distortion suitable for precision analog signal routing.

Analog Switches, Multiplexers, Demultiplexers Feature Summary

• Four independent SPST switches with flat on-resistance profile over the full analog input range
• Trench isolation technology providing latch-up proof performance under severe overvoltage conditions
• Break-before-make switching action prevents channel shorting in multiplexer configurations
• Internal voltage generator eliminates the need for external logic power supply pins

Analog Switches, Multiplexers, Demultiplexers Applications

• Audio and video signal switching systems
• Automatic test equipment signal routing
• Precision data acquisition front-ends
• Battery-powered portable instruments
• Sample-and-hold circuits

Analog Switches, Multiplexers, Demultiplexers Procurement Notes

Verify that the ordering suffix 'Z' confirms RoHS compliance status as specified in the manufacturer's documentation. Confirm the package option corresponds to the 16-Lead Standard Small Outline Package (SOIC) dimensions. Ensure the specific grade matches the required trench-isolated A-grade specifications for latch-up protection. Cross-reference the temperature range requirements against the industrial B version limits.

Analog Switches, Multiplexers, Demultiplexers Selection Notes

Select the ADG442ABR when logic-high control inputs are required to activate the switches, distinguishing it from the ADG441/ADG444 variants which respond to logic-low signals. Choose this component for applications requiring internal logic voltage generation rather than an external VL pin. Consider the 70 Ω on-resistance and 3 nA leakage specs for signal integrity requirements. Verify compatibility with the available SOIC-16 footprint during PCB layout design.

Analog Switches, Multiplexers, Demultiplexers Part Context

This component belongs to the ADG441/ADG442/ADG444 family of LC2MOS Quad SPST Switches manufactured by Analog Devices. These devices are designed as plug-in replacements for legacy DG441/DG442/DG444 parts and serve as upgrades for DG201A/ADG201A series components. The family utilizes an enhanced LC2MOS process to balance low power dissipation with high switching speed and low on-resistance characteristics.

Analog Switches, Multiplexers, Demultiplexers Replacement Considerations

Publicly confirmed direct replacements include the ADG441 and ADG444 models within the same family, provided the logic control polarity differences are accounted for in the circuit design. Legacy equivalents such as the DG441, DG442, and DG444 can be replaced, though verification of pinout compatibility and electrical parameter margins is required.