DG403BDJ-E3

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The DG403BDJ-E3 is a dual-channel single-pole double-throw (SPDT) analog switch with monolithic bipolar CMOS technology. It is manufactured by Intersil Corporation and is specifically designed to provide wide band gap performance in audio applications.

Features

The DG403BDJ-E3 has numerous features not found in other analog switches, some of which include:

• Low power consumption
• Low on-state resistance
• High maximum operating voltage
• Integrated ESD protection
• Integrated input protection
• High switching speed
• Excellent isolation characteristics

Application Field

The DG403BDJ-E3 can be used for a range of applications including: Telecommunications, Automotive / Audio, Medical Equipment, Process Control and Measurement, Digital Signal Processor Switches, and Computer Peripheral Switches.

The switch can also be used to facilitate power from one circuit to another, providing low resistance paths for high currents, and to switch external loads. Additionally, this switch has the ability to protect digital ASICs and system microcontrollers from damage due to excessive current surges.

Working Principle

The DG403BDJ-E3 is composed of two PDOS (p-type enhancement mode devices) MOSFETs and two N-channel MOSFETs. To switch it, the gate-source voltage of the first two PDeps (PDOSs) is increased by the gate-source voltage of the N-channel MOSFETs. This causes the connection between the two inputs and the output to be established. This switch requires an external supply voltage for the pull-up resistor.

The switch supplies a low-resistance path for current when it is on and an infinite-resistance path when it is off. The finite on-state resistance of this switch is typically less than 10 Ohms, making it well suited for low-power applications such as audio signal-switching. In addition, the DG403BDJ-E3 provides very low static and dynamic leakage current, making it suitable for applications where low-power is a priority.

Advantages

The DG403BDJ-E3 offers several advantages over traditional analog switches, including reduced power consumption and higher switching speeds. It also offers excellent isolation characteristics and is protected against electromagnetic interference. In addition, it features low on-state resistance, meaning that it is suitable for applications where high currents are expected.

In addition, the DG403BDJ-E3 is an easy-to-use switch, providing low current demand, low on-state resistance, and fast switching times. This makes it an ideal choice for a variety of applications, from audio signal-switching to protecting digital ASICs and system microcontrollers from current surges.

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