ADG431BR

Analog Switches, Multiplexers, Demultiplexers Overview

The ADG431BR is a precision quad SPST analog switch from Analog Devices, housed in a 16-lead SOIC package. It operates with dual supplies ranging from ±5 V to ±8.5 V or single supplies up to 12 V. Key electrical parameters include a maximum on-resistance of 24 Ω, typical switching times of tON < 165 ns and tOFF < 130 ns, and ultralow power dissipation of 7.7 µW. The device supports an analog signal range extending to the supply rails and features break-before-make switching action.

Analog Switches, Multiplexers, Demultiplexers Feature Summary

• Enhanced LC2MOS process provides extended signal range fully to supply rails
• Ultralow power dissipation suitable for battery-powered instruments
• Break-before-make switching prevents channel shorting in multiplexer configurations
• TTL/CMOS compatible digital control logic

Analog Switches, Multiplexers, Demultiplexers Applications

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

Analog Switches, Multiplexers, Demultiplexers Procurement Notes

Verify the specific ordering suffix against the manufacturer's current documentation to confirm package type and isolation technology. The 'B' designation indicates the industrial temperature range. Confirm availability status as product lifecycles may change. Ensure ESD precautions are observed during handling due to CMOS sensitivity.

Analog Switches, Multiplexers, Demultiplexers Selection Notes

Select the ADG431BR when low on-resistance flatness and high linearity are required for audio applications. Choose this part over the ADG432 if active-low control logic is preferred for the switches. Consider the ADG433 variant if mixed logic polarity is needed within the same package. Verify that the single-supply operation meets the voltage requirements for unipolar signals.

Analog Switches, Multiplexers, Demultiplexers Part Context

The ADG431BR belongs to the ADG43x family of precision quad SPST switches fabricated on an enhanced LC2MOS process. This family includes the ADG432 with inverted logic and the ADG433 with mixed logic. These devices serve as plug-in replacements for older DG411/DG412/DG413 series components while offering improved speed and lower power consumption.

Analog Switches, Multiplexers, Demultiplexers Replacement Considerations

The datasheet identifies the ADG431/ADG432/ADG433 as direct plug-in replacements for the DG411, DG412, and DG413 respectively. When substituting, verify that the legacy component's pinout matches the SOIC-16 configuration and that the new device's voltage ratings accommodate the existing circuit conditions.