Analog DevicesADUM362N1BRQZDigital Isolators

ADuM362N: 3.0 kV rms 6-Channel Digital Isolator

The ADuM362N is a 6-channel digital isolator based on Analog Devices, Inc., iCoupler® technology. Combining high speed, complementary metal-oxide semiconductor (CMOS) and back-to-back monolithic air core transformer technology, these isolation components provide outstanding performance characteristics and meet CISPR 32/EN 55032 Class B limits at 5 Mbps.

The maximum propagation delay of the ADuM362N is 10 ns with a pulse-width distortion of less than 3 ns at 5 V operation. Channel matching is tight at 3.0 ns maximum.

The ADuM362N data channels are independent and are available in a variety of configurations with a withstand voltage rating of 3 kV rms (see Figure 17). The devices operate with the supply voltage on either side ranging from 2.25 V to 5.5 V, which provides compatibility with lower voltage systems as well as enabling voltage translation functionality across the isolation barrier.

Two different fail-safe options are available, by which the outputs transition to a predetermined state when the input power supply is not applied.

Key Features and Benefits

• •  High common-mode transient immunity: 180 kV/μs typical
• •  High robustness to radiated and conducted noise
• •  Low propagation delay
• •  6.2 ns typical (10 ns maximum) for 5 V operation
• •  Low dynamic power consumption, <1.65 mA/ch at 1 Mbps
• •  2.25 V to 5.5 V level translation
• •  150 Mbps maximum guaranteed data rate for 5 V operation
• •  High temperature operation: 125°C
• •  Safety and regulatory approvals
• •  RQ-16 [QSOP] package
• •  UL 1577 (pending)
• •  V_ISO = 3000 VRMS for 1 minute
• •  EN IEC 60747-17 (pending)
• •  V_IORM = 636 V_PEAK
• •  V_IOSM = 10,000 V_PEAK (reinforced)
• •  IEC/EN/CSA 62368-1 (pending)
• •  IEC/CSA 60601-1 (pending)
• •  IEC/CSA 61010-1 (pending)
• •  CQC GB 4943.1 (pending)
• •  ±8 kV IEC 61000-4-2 ESD protection across isolation barrier
• •  ±4 kV HBM ESD protection on input/output pins
• •  Fail-safe high (N1) or low (N0) options
• •  16-lead, RoHS compliant, QSOP package

Applications

• •  Serial-peripheral interface (SPI) data converter isolation
• •  RS-485 and controller area network with flexible data rate (CAN FD) industrial field bus isolation
• •  PWM controller signal isolation
• •  General-purpose multichannel isolation

Evaluation Board

The ADuM362N can be evaluated with the EVAL-ADuM36xN.

Block Diagrams and Tables