ADG5409BRUZ

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Analog switches, multiplexers, and demultiplexers (collectively known as multiplexers) are components used to route electrical signals from one circuit to another. The ADG5409BRUZ is a digitally controlled analog switch that combines a multiplexer and a demultiplexer with each other. It offers one-of-eight input selection, buffer isolation and low power consumption in a small package.

Application Field

The ADG5409BRUZ’s ability to switch large voltage and current signals in an efficient and responsive manner makes it an ideal solution for a variety of applications. It is suitable for applications including wireless base stations, cellular phones and other RF applications, as well as video and audio applications, such as audio distribution amplifiers and video switchers.

Working Principle

The ADG5409BRUZ is a dual-channel, digitally controlled, low-voltage analog switch. It has one single-pole, eight-throw (SP8T) multiplexer (MUX) and one single-pole, eight-throw (SP8T) demultiplexer (DMUX). The MUX switch has one common input and eight selectable discrete signals, and the DMUX switch has an active output and eight parallel selectable discrete inputs.

The ADG5409BRUZ is controlled by two separate three-bit binary control signals, A0–A2, and B0–B2. A0–A2 selects which of the eight discrete inputs of the MUX is routed to the common output. Similarly, B0–B2 chooses which of the eight discrete inputs of the DMUX is fed to the active output. Both the MUX and the DMUX channel always operate concurrently. The different control signals of the MUX and the DMUX ensure that they can be used to drive different loads independently.

The ADG5409BRUZ is powered by a single 5V power supply. It is available in a variety of packages and is characterized to operate over the commercial temperature range (from 0°C to 70°C). It has break-before-make switching action and ensures good high-frequency performance. Thus, it is an ideal choice for bidirectional switching applications. The following features of the ADG5409BRUZ make it an ideal choice for multiplexing and demultiplexing applications:

• Programmable routing of eight signals of the MUX and eight signals of the DEUX

• Slew rate limited applications

• Low-power consumption

• Small package size

• High-frequency performance

• Break-before-make switching

In summary, the ADG5409BRUZ is an ideal choice for numerous applications in the wireless, video, and audio fields. Its ability to multiplex and demultiplex digital signals, while still providing high-frequency performance and low power consumption, makes it an attractive digital switching solution.

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