DG445DJ-E3

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The DG445DJ-E3 is an analog switch designed primarily for applications in the audio and industrial fields. It has a dual-channel multiplexing function, which allows it to select either a low- or high-pass filter configuration depending on what is required. It is also capable of controlling and routing analog signals, and provides higher flexibility in controlling the audio channels.

The DG445DJ-E3 is a surface mount device, making it small enough for use in space-constrained applications, as well as providing a high degree of flexibility in terms of being placed in varying locations. It also has a high switching performance, with a minimum ‘on’ time of 1μs, and a maximum ‘off’ time of 0.1ms, making it an ideal choice for applications such as automotive, consumer, and consumer audio devices.

The DG445DJ-E3’s primary functionality is as an analog switch, with the ability to control up to four analog switches. It works by providing a gate voltage to the gate terminals of the switch, which in turn controls the switch’s on/off state. This gate voltage is usually provided by an external source, such as a microcontroller or programmable logic device. The voltage is typically between 10V and 35V. For example, it may be used to select between a low-pass filter or high-pass filter configuration, or to switch between different audio channels.

The DG445DJ-E3’s other functionality is as a multiplexer. This is a device that allows multiple analog signals to be multiplexed – or routed – through a single channel. This is achieved by having multiple inputs, each of which is designated as either an input or output. The multiplexer then selects which input or outputs are active, enabling the selection between different inputs or outputs as needed. This allows for a significant reduction in the number of cables required, as well as improved flexibility in controlling the audio channels.

In addition to its analog switch and multiplexer capabilities, the DG445DJ-E3 also features an input impedance of 5kΩ, making it suitable for low-impedance systems. It also has a maximum on-state resistance of 0.1Ω, providing very low power consumption, and making it ideal for use in battery-powered or energy-saving applications. It also has an operating temperature range of –40 to 85°C, making it a suitable choice for a wide range of environmental conditions.

Overall, the DG445DJ-E3 is an ideal choice for a wide range of applications in the audio, industrial and automotive fields. It has a high switching performance, small size and low power consumption, making it a suitable choice for both analog and digital signal routing.

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