ADUM1245ARZ

Common Mode Transient Immunity (Min):	25kV/µs
Base Part Number:	ADUM1245
Supplier Device Package:	8-SOIC
Package / Case:	8-SOIC (0.154", 3.90mm Width)
Mounting Type:	Surface Mount
Operating Temperature:	-40°C ~ 125°C
Voltage - Supply:	2.25 V ~ 3.6 V
Rise / Fall Time (Typ):	2ns, 2ns
Pulse Width Distortion (Max):	8ns
Propagation Delay tpLH / tpHL (Max):	180ns, 180ns
Data Rate:	2Mbps
Series:	iCoupler®
Voltage - Isolation:	3000Vrms
Channel Type:	Unidirectional
Inputs - Side 1/Side 2:	2/0
Number of Channels:	2
Isolated Power:	No
Type:	General Purpose
Technology:	Magnetic Coupling
Part Status:	Active
Packaging:	Tube

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Introduction

Digital isolators (DI) are used to isolate digital signals between two lines. They can also be called isolators or current-clamp devices. The ADUM1245ARZ is an example of a digital isolator. It is designed to provide electrical isolation between two digital signals, such as a series of RS-232 data signals, a Universal Serial Bus (USB), a general-purpose input/output (GPIO) signal, or an I2C signal.

Application Fields of ADUM1245ARZ

The ADUM1245ARZ is used in various applications, such as medical devices, security systems, industrial equipment, and automotive electronics. In medical applications, digital isolators can help protect patients from electrical shocks by providing electrical isolation between two devices. It is also used in security systems to isolate different parts of a system from each other. This prevents any malicious code from being introduced into the system and reduces the risk of data breaches. In industrial equipment, digital isolators can help protect any sensitive circuitry from the potentially harsh environment. Finally, digital isolators can be used in automotive electronics, such as vehicle electronics systems, to reduce the vulnerability of the circuitry to outside interference.

Working Principle of ADUM1245ARZ

The working principle of the ADUM1245ARZ is quite simple. It uses inductors and capacitors to create an electrical barrier between two digital signals. When the signal is transferred from one line to another, the magnetic field created by the inductor causes an electric charge to be generated in the capacitor. This electric charge is what forms the isolation between the two lines. The electric charge also prevents any interference from affecting the signal being transferred. The ADUM1245ARZ is designed to provide up to 2kVRMS of isolation voltage, so it is suitable for a variety of applications. It has a high common mode transient immunity of up to 80kV/µs, which makes it well suited for more demanding environments. It also has a low propagation delay of less than 2ns and can support data rates up to 8 MHz. The ADUM1245ARZ is also IEC 60950-1 certified, making it suitable for use in medical applications.

Conclusion

The ADUM1245ARZ is a digital isolator designed to protect circuitry from interference and provide electrical isolation between two digital signals. It is suitable for use in a variety of applications, such as medical devices, security systems, industrial equipment, and automotive electronics. The ADUM1245ARZ is IEC 60950-1 certified and has a high common mode transient immunity of up to 80kV/µs. It also has a low propagation delay of less than 2ns and can support data rates up to 8 MHz.

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