ADUM3400ARWZ-RL

Common Mode Transient Immunity (Min):	25kV/µs
Base Part Number:	ADUM3400
Supplier Device Package:	16-SOIC
Package / Case:	16-SOIC (0.295", 7.50mm Width)
Mounting Type:	Surface Mount
Operating Temperature:	-40°C ~ 105°C
Voltage - Supply:	3 V ~ 5.5 V
Rise / Fall Time (Typ):	2.5ns, 2.5ns
Pulse Width Distortion (Max):	40ns
Propagation Delay tpLH / tpHL (Max):	100ns, 100ns
Data Rate:	1Mbps
Series:	iCoupler®
Voltage - Isolation:	2500Vrms
Channel Type:	Unidirectional
Inputs - Side 1/Side 2:	4/0
Number of Channels:	4
Isolated Power:	No
Type:	General Purpose
Technology:	Magnetic Coupling
Part Status:	Active
Packaging:	Tape & Reel (TR)

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Digital Isolators – ADUM3400ARWZ-RL application field and working principle

Digital Isolators are components that isolate between a pair of circuits with optical isolation or capacitive voltage isolation based on solid-state switching circuitry. Commonly used in environments with high amount of power and voltage transients, Digital Isolators protect the sensitive circuitry on the power side from any dangerous transients. The ADUM3400ARWZ-RL is a part of this family, providing a pair of digital isolator channels that are based on a main controller IC, a parasitic capacitance array and a CMOS transistor.

The Application Field

The ADUM3400ARWZ-RL is typically used in signal processing applications, where a high degree of isolation is needed to maintain signal integrity and quality. In these applications, the ADUM3400ARWZ-RL is used to provide electrical isolation between audio subsystems, communication protocols, and other isolating needs like protecting control units from high-voltage transients.The ADUM3400ARWZ-RL is often used in medical applications, as it provides a higher level of isolation between equipment and medical personnel. These parts are also used in industrial process control systems, like monitoring and controlling of various process parameters in oil, gas and chemical plants, to provide a safe and reliable isolation between users and dangerous equipment.

Typical applications

Typical applications of the ADUM3400ARWZ-RL parts include isolating digital processing systems, like computers, from power lines to protect them from electrical transients and surges. These parts are also used in automotive applications, providing fault-tolerant digital signals and isolation between various systems. Other typical applications include electric motor control, industrial automation, and electronic security systems.

Working Principle

The working principle of the ADUM3400ARWZ-RL is based on a pair of control ICs which contain parasitic capacitance arrays and CMOS transistors. The parasitic capacitance is used to detect a voltage on the power side, and the voltage is then passed through the CMOS transistor and sent to the logic side.The control ICs are used to buffer the data signal in both directions, ensuring that there is no interference between the input side and the output side. Furthermore, the control IC contains a number of built-in safety features, such as over-temperature, current limiting, surge protection, which help to protect the sensitive circuitry on the power side from any dangerous electrical transients.

Conclusion

The ADUM3400ARWZ-RL is a family of digital isolators that provides a high level of isolation for signal processing systems. The components provide electrical isolation between audio subsystems, communication protocols, and other isolating needs, while the parasitic capacitance array and CMOS transistor provide a reliable data-signal buffering. The components are also used in medical, automotive, industrial process control and other applications due to their high level of isolation and safety features.

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