ADUM1285ARZ-RL7 Isolators

Common Mode Transient Immunity (Min):	25kV/µs
Base Part Number:	ADUM1285
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:	3 V ~ 5.5 V
Rise / Fall Time (Typ):	2.5ns, 2.5ns
Pulse Width Distortion (Max):	10ns
Propagation Delay tpLH / tpHL (Max):	50ns, 50ns
Data Rate:	1Mbps
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:	Tape & Reel (TR)

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Digital IsolatorsDigital Isolators are components used to isolate two circuits from each other, typically electrical systems, while allowing them to communicate with each other. This isolation helps minimize any disturbances that could occur between the two circuits, especially from electrical noise. Isolators are used in a variety of applications, from industrial to medical, and are essential components of many electronic systems.The ADUM1285ARZ-RL7 is one such digital isolator that is typically used for isolation between power regions and signal regions in circuits. This isolator is made using Analog Devices’ iCoupler technology, which uses tiny magnetic couplers to create a galvanic isolation tunnel. This tunnel can isolate the two circuits while at the same time allowing data to pass through them. This device has an operational input frequency of up to 50MHz, with an isolation voltage of 2.5kVrms, so it is capable of providing reliable data transmission even in higher voltage applications.The ADUM1285ARZ-RL7 also features a digital watch crystal-based isolation technology, which allows it to provide an extremely low power consumption and low electromagnetic emissions; both of which are critical criteria in any system that requires a high level of isolation between its circuits.The ADUM1285ARZ-RL7 has an operating temperature range of -40 to 85°C and it is available in a 24-pin non-isolated SOIC package. This isolator is also compliant with global standards such as the IEC 60747-5-5 and UL 8750 safety standards.The primary application field for the ADUM1285ARZ-RL7 is in communication systems that contain both digital and analog components, like bridges, repeaters, pumps, industrial process control systems, and medical imaging systems. This component can be used to ensure that the data transmitted between circuits remains protected from disturbances and other electrical noise that could interfere with the system’s performance. The low-power and low-emission features also make it a great choice for any system that requires high levels of isolation between its circuits while still keeping the power consumption low.The working principle of the ADUM1285ARZ-RL7 is based on iCoupler technology, which is a digital isolator that uses insulated metal-oxide-semiconductor field-effect transistors (MOSFETs) in combination with a built-in watch crystal-based oscillator. The MOSFETs act as the isolation tunnel, while the watch quartz crystal helps maintain a precise clock signal that serves to synchronize the transmission of data. This technology is able to provide a high level of data accuracy and transfer speed, while consuming very little power and emitting low levels of electromagnetic radiation.Overall, the ADUM1285ARZ-RL7 is a versatile digital isolator that can be used for both digital and analog signal transmission between circuits. Its iCoupler technology allows it to provide an effective isolation while simultaneously providing an extremely low power consumption and low electromagnetic interference. Its versatile design and low-power operation make it ideal for applications in industrial process control systems, medical imaging systems, and communication systems.

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