As a leading supplier of electronic components in China, Mingjiada Electronics is now fully supplying ADI original genuine ADUM3481ARSZ digital isolator, a compact, four-channel, 3.75 KV RMS digital isolator with advanced iCoupler® technology, which provides reliable signal isolation solutions for industrial automation, communication equipment and other fields.
ADUM3481ARSZ Product Description
The ADUM3481ARSZ is a quad-channel digital isolator based on iCoupler® technology from ADI in a 20-pin SSOP package (package size: 0.209’, 5.30mm wide) with a high isolation voltage of 3750Vrms and excellent signal integrity. This ADUM3481ARSZ device combines high-speed CMOS with single-chip air-core transformer technology to provide performance that outperforms traditional optocouplers and other integrated couplers.
The core technical advantage of the ADUM3481ARSZ is its innovative iCoupler® magnetic isolation technology, which enables signal transmission through a monolithic air-core transformer and avoids the reliability issues associated with aging LEDs in an optocoupler. With a typical propagation delay of only 25ns and pulse width distortion cut in half compared to conventional solutions, the ADUM3481ARSZ provides an ideal solution for high-speed digital signal isolation.
ADUM3481ARSZ Product Features
Isolation Performance: The ADUM3481ARSZ provides isolation voltage of 3750Vrms and high common mode transient immunity of over 25kV/μs, ensuring stable operation in harsh industrial environments.
Transmission Speed: The ADUM3481ARSZ supports data transmission rates up to 25Mbps (NRZ), with typical propagation delays of only 25ns and maximum propagation delays of no more than 90ns, meeting most high-speed digital isolation requirements.
Power Characteristics: The ADUM3481ARSZ features separate core (3V to 5.5V) and I/O power (1.8V to 5.5V) supplies, which can be connected for single-supply operation when I/O operation is within the core supply range.The ADUM3481ARSZ has very low dynamic power consumption, with a typical supply current of only 4.3mA.
Timing Characteristics: The ADUM3481ARSZ has a typical rise/fall time of 2.5ns and maximum pulse width distortion of only 6ns, ensuring signal integrity. These excellent timing characteristics make the ADUM3481ARSZ particularly suitable for application scenarios with precision timing requirements.
Environmental Adaptability: The ADUM3481ARSZ operates over a wide range of temperatures (-40°C to +125°C) and can withstand a variety of harsh environments.The ADUM3481ARSZ is available in a RoHS-compliant 20-SSOP package to meet environmental requirements.
Core Parameters
Model No.: ADUM3481ARSZ
Manufacturer: Analog Devices Inc.
Isolated Channels: 4 channels (3 forward/1 reverse)
Isolation Voltage: 3.75kV RMS
Data Rate: Up to 25Mbps
Operating temperature: -40°C to +105°C
Package: 20-pin SSOP
Supply voltage: 2.7V to 5.5V
CMTI: >25kV/μs (common-mode transient immunity)
ADUM3481ARSZ Typical Application Areas
Industrial automation system: ADUM3481ARSZ is widely used in PLC, DCS and other industrial control systems to isolate SPI, RS-485 and other communication interfaces and prevent ground loop interference. In motor drive applications, ADUM3481ARSZ can isolate PWM signals and protection circuits to improve system reliability.
Communication equipment: The ADUM3481ARSZ is used as an isolated interface for data converters (ADC/DAC) to ensure ground isolation between analogue and digital parts. In base station equipment, the ADUM3481ARSZ isolates control signals and prevents RF interference from affecting logic power.
Medical electronics: The ADUM3481ARSZ meets the safety isolation requirements of medical equipment and can be used in patient monitors, medical imaging equipment, etc. to ensure patient safety.
Test and Measurement Instruments: ADUM3481ARSZ provides signal isolation in oscilloscopes, logic analysers and other equipment to prevent the equipment under test from damaging the instrument.
Power Management Systems: The ADUM3481ARSZ can be used to isolate the feedback loop of a power supply, providing safe isolation while maintaining control accuracy.
Industrial Fieldbus: The ADUM3481ARSZ supports the isolation needs of PROFIBUS, Modbus and other fieldbuses to improve network immunity.
For more technical details or purchasing information about ADUM3481ARSZ, please feel free to contact the professional sales team of Mingjiada Electronics. We will be happy to provide you with ADUM3481ARSZ technical support and procurement services to help your project success.
Contact Information
Tel: +86 13410018555
Email: sales@hkmjd.com
Official Website: www.integrated-ic.com
ADUM3481ARSZ Functional Block Diagram
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