ADG409BRUZ

Analog Switches, Multiplexers, Demultiplexers Overview

The ADG409BRUZ is a monolithic CMOS analog multiplexer comprising four differential channels. It switches one of four differential inputs to a common differential output, controlled by two binary address lines (A0, A1). The device features an active-high enable input that disables all channels when low. Fabricated on an enhanced LC2MOS process, it supports dual supplies up to ±15 V and single supplies as low as 5 V. Key electrical parameters include a maximum on-resistance of 100 Ω, channel-to-channel matching of 15 Ω, and off-isolation of -75 dB at 100 kHz. Supply current is typically 1 μA in the disabled state.

Analog Switches, Multiplexers, Demultiplexers Feature Summary

• Enhanced LC2MOS process provides extended signal range extending to supply rails with low power dissipation.
• Break-before-make switching action prevents momentary shorting during channel transitions.
• Low charge injection design minimizes transients when switching digital inputs.
• Capable of operation from a single 12 V supply or dual ±15 V supplies.

Analog Switches, Multiplexers, Demultiplexers Applications

• Audio and video routing
• Automatic test equipment
• Data acquisition systems
• Battery-powered systems
• Sample-and-hold systems

Analog Switches, Multiplexers, Demultiplexers Procurement Notes

Verify the specific ordering suffix against the manufacturer's official documentation to confirm package type and RoHS compliance status. The BRUZ suffix indicates a lead-free TSSOP-16 package. Confirm availability through authorized distributors as supply levels may fluctuate. Ensure the procurement source provides valid traceability for industrial temperature grade components.

Analog Switches, Multiplexers, Demultiplexers Selection Notes

Select the ADG409BRUZ for applications requiring differential signal switching with low distortion. Verify that the required analog signal range fits within the supply rails. Consider the 100 Ω maximum on-resistance and 15 Ω channel matching for precision requirements. Ensure the digital control logic voltage levels are compatible with the specified VINH and VINL thresholds.

Analog Switches, Multiplexers, Demultiplexers Part Context

The ADG409BRUZ belongs to the ADG408/ADG409 family of high-performance analog multiplexers. It serves as an improved replacement for the legacy DG409 component. The device integrates four differential channels into a single 16-pin package, offering a compact solution for signal routing in mixed-signal environments compared to discrete switch implementations.

Analog Switches, Multiplexers, Demultiplexers Replacement Considerations

The ADG409BRUZ is documented as a direct plug-in replacement for the DG409. Other potential substitutes within the Analog Devices portfolio include the ADG5409BRUZ and DG409CUE+, though pinouts and specifications should be verified against the original design requirements.

Analog Switches, Multiplexers, Demultiplexers FAQ

How does the ADG409 handle channel switching?

The device utilizes break-before-make switching action, which ensures that all channels are opened before any new channel is closed, preventing momentary shorting between inputs during transitions.

What is the function of the EN pin?

The EN pin is an active-high digital input. When driven low, it disables the device and turns off all switches. When high, the Ax logic inputs determine which channel is active.

Can the ADG409 operate with a single supply?

Yes, the device can operate with a single supply. It is fully specified with a single 12 V supply and remains functional with single supplies as low as 5 V.