ADG409BRZ

Analog Switches, Multiplexers, Demultiplexers Overview

The ADG409BRZ 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-bit binary address lines A0 and A1. An active-high EN input enables or disables the device; when disabled, all channels are off. Fabricated on an enhanced LC2MOS process, it offers low power dissipation, high switching speed, and low on-resistance. The analog signal range extends from VSS to VDD. Key electrical parameters include a maximum on-resistance (RON) of 100 Ω, a channel-to-channel matching (ΔRON) of 15 Ω, and a supply current (IDD/ISS) of 5 μA maximum at 25°C. Operating temperature range is -40°C to +85°C.

Analog Switches, Multiplexers, Demultiplexers Feature Summary

• Break-before-make switching action prevents momentary shorting during channel transitions.
• Low charge injection design minimizes transients when switching digital inputs.
• Input signal range extends to the supply rails for increased dynamic range.
• Single-supply operation supported with functionality down to 5 V.

Analog Switches, Multiplexers, Demultiplexers Applications

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

Analog Switches, Multiplexers, Demultiplexers Procurement Notes

Verify the specific package variant against the ordering guide, as the ADG409 family includes SOIC (R-16), TSSOP (RU-16), and PDIP (N-16) options. Confirm RoHS compliance status indicated by the 'Z' suffix in the part number. Ensure the selected component matches the required industrial temperature range specifications for the intended application environment.

Analog Switches, Multiplexers, Demultiplexers Selection Notes

Select the ADG409BRZ for applications requiring differential signal switching with low distortion. Consider the 100 Ω maximum on-resistance and 15 Ω channel matching for precision requirements. Verify that the single or dual supply voltage configuration aligns with the system's power architecture, noting the device supports unipolar signals down to 5 V.

Analog Switches, Multiplexers, Demultiplexers Part Context

The ADG409BRZ belongs to the ADG408/ADG409 series of high-performance analog multiplexers. It serves as an improved replacement for legacy DG408/DG409 devices. The BRZ suffix specifically denotes the Narrow Body Small Outline Package (SOIC-16) variant compliant with RoHS standards, distinguishing it from TSSOP or DIP package options within the same functional family.

Analog Switches, Multiplexers, Demultiplexers Replacement Considerations

Publicly confirmed substitute part numbers include ADG5409BRUZ and DG409CUE+.

Analog Switches, Multiplexers, Demultiplexers FAQ

What is the function of the EN pin?

The EN pin is an active-high digital input. When low, the device is disabled and all switches are turned off. When high, the Ax logic inputs determine which switch is on.

How does the ADG409 handle channel switching?

It utilizes break-before-make switching action, which ensures that all channels are switched off before a new channel is activated, preventing momentary shorting between channels.

What is the analog signal range capability?

The analog signal range extends from VSS to VDD, allowing the input signal to reach the supply rails.