Features and Benefits
- For AEC-Q100 Automotive Qualified Devices Specifications Please View ADuM520xW Datasheet.
- isoPower® integrated isolated DC/DC converter
- Regulated 3V or 5V output
- Up to 500 mW output power
- Dual dc-to-25 Mbps (NRZ) signal isolation channels
- Schmitt Trigger Inputs
- 16-lead SOIC package with >8 mm creepage
- High temperature operation: 105°C maximum
- High common-mode transient immunity: > 25 kV/µs
- Safety and regulatory approvals
2500 V rms for 1 minute per UL 1577
CSA component accept notice #5A (pending)
VDE cert of conformity (pending)
DIN V VDE V 0884-10
(VDE V 0884-10): 2006-12
VIORM = 560 VPEAK
The ADuM520x are dual channel digital isolators with isoPower, an integrated, isolated dc-to-dc converter. Based on the Analog Devices, Inc., iCoupler® technology, the dc-to-dc converter provides up to 500 mW of regulated, isolated power with 5.0 V input and 5.0 V output voltage, or 200 mW of power with 3.3 V input and 3.3 V output voltage. This eliminates the need for a separate isolated dc-to-dc converter in low power isolated designs. The Analog Devices chip scale transformer iCoupler technology is used for the isolation of the logic signals as well as for the dc-to-dc converter. The result is a small form factor, total isolation solution.
ADuM520x units may be used in combination with ADuM5401, ADuM5402, ADuM5403, ADuM5404 and ADuM5000 with isoPower® to achieve higher output power levels and greater channel counts (see the Increasing Available Power section).
The ADuM520x isolators provide two independent isolation channels in a variety of channel configurations and data rates (see the Ordering Guide for options).
isoPower uses high frequency switching elements to transfer power through its transformer. Special care must be taken during printed circuit board (PCB) layout to meet emissions standards. Refer to the AN-0971 application note for details on board layout recommendations.
- RS-232/RS-422/RS-485 transceiver
- Industrial field bus isolation
- Power supply startups and gate drives
- Isolated sensor interfaces
- Industrial PLCs
Product Lifecycle Production
At least one model within this product family is in production and available for purchase. The product is appropriate for new designs but newer alternatives may exist.
Evaluation Kits (1)
EVAL-ADuMQSEBZ can be used with most iCoupler® and isoPower(R) isolation products in the 16-lead, wide-body SOIC and QSOP packages. The evaluation board supports the common pad positions for power, ground, and I/O pins.
Supported iCoupler® Products
Features & Benefits
- Convenient connections for power through screw terminal blocks
- Add-on BNC connector for 50 Ω signal sources
- On-board signal routing
- Support for signal wrap back
- Simple signal paths to reduce transmission line effects
- Pull-up and pull-down provided for control lines
- Support for isoPower
- Project area that supports surface-mount and through-hole devices
Documentation & Resources
Recommendations for Control of Radiated Emissions with isoPower Devices7/3/2020
AN-0971: Recommendations for Control of Radiated Emissions with isoPower Devices (Rev. C)2/14/2015
AN-913: Isolating I2C Interfaces (Rev. 0)6/20/2007
AN-727: iCoupler® Isolation in RS-485 Applications (Rev. 0)11/1/2006
AN-740: iCoupler® Isolation in RS-232 Applications (Rev. A)11/1/2006
AN-770: iCoupler® Isolation in CAN Bus Applications (Rev. 0)11/1/2006
AN-793: ESD/Latch-Up Considerations with iCoupler® Isolation Products (Rev. A)11/1/2006
AN-825: Power Supply Considerations in iCoupler® Isolation Products (Rev. 0)11/1/2006
Power Blanking for Increased Accuracy Using isoPower Devices6/1/2011
Inside iCoupler® Technology:ADuM347x PWM Controller and Transformer Driver with Quad-Channel Isolators Design Summary12/10/2010
NAppkin Note: Lowering the Power of the ADuM524x12/10/2010
Microtransformer Isolation Benefits Digital Control10/1/2008
High Speed Digital Isolators Using Microscale On-Chip Transformers9/1/2003
ADI has always placed the highest emphasis on delivering products that meet the maximum levels of quality and reliability. We achieve this by incorporating quality and reliability checks in every scope of product and process design, and in the manufacturing process as well. "Zero defects" for shipped products is always our goal.
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Pricing displayed is based on 1-piece. The USA list pricing shown is for budgetary use only, shown in United States dollars (FOB USA per unit), and is subject to change. International prices may vary due to local duties, taxes, fees and exchange rates.