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Analog Devices Inc. ADUM2286CRIZ
- Part No.:
- ADUM2286CRIZ
- Manufacturer:
- Analog Devices Inc.
- Category:
- Digital Isolators
- Package:
- 16-SOIC (0.295", 7.50mm Width)
- Datasheet:
-
ADUM2286CRIZ.pdf
- Description:
- DGTL ISO 5000VRMS 2CH GP 16SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:3,389
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Product details
Overview
ADuM2286CRIZ from Analog Devices is a 5 kVRMS dual-channel digital isolator with default-low output logic, 100 Mbps data rate, 24 ns max propagation delay, and 3 V to 5.5 V dual-supply operation. It enables bidirectional signal isolation in high-noise industrial interfaces such as RS-485 transceivers and isolated power supply feedback loops.
For engineers reviewing the ADuM2286CRIZ datasheet, ADuM2286CRIZ pinout, ADuM2286CRIZ application, or ADuM2286CRIZ equivalent, key selection criteria include reinforced insulation rating (VIORM = 645 VPEAK), high CMTI (>25 kV/μs), SOIC-16W package with 8.7 mm creepage, and compatibility with mixed-voltage (3 V/5 V) systems across the isolation barrier.
Technical Context
The ADuM2286CRIZ implements iCoupler® technology using monolithic air-core transformers for galvanic isolation, eliminating LED aging and timing drift inherent in optocouplers. Its patented refresh circuit ensures DC-correct output states during input inactivity or power-up sequences.
It supports independent 3.0–5.5 V supplies on both sides, enabling level translation between domains. The device features tight channel-to-channel matching (≤5 ns skew for codirectional signals) and operates reliably from −40°C to +125°C with UL, VDE, and IEC 60601-1 medical safety certifications.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Isolation Voltage | 5000 VRMS (1-minute withstand); enables reinforced insulation per IEC 60747-17 and IEC 60601-1 2-MOPP medical compliance |
| Data Rate | Up to 100 Mbps (C grade); supports high-speed serial protocols including isolated UART, SPI clock lines, and digital power control loops |
| Propagation Delay | ≤24 ns max (5 V operation); ensures precise timing alignment in real-time control systems and fast feedback paths |
| Common-Mode Transient Immunity | >25 kV/μs; maintains signal integrity in noisy motor drives, inverters, and industrial PLC I/O modules |
| Default Output State | Low (VOA/VOB = L when unpowered or during input inactivity); prevents undefined states in fail-safe system initialization |
| Supply Range | 3.0 V to 5.5 V per side; allows interoperability between legacy 3.3 V logic and 5 V microcontrollers without external level shifters |
| Package | 16-lead SOIC wide-body (SOIC_W); provides 8.7 mm creepage/clearance for reinforced insulation at 645 VPEAK working voltage |
Pinout & Package
ADuM2286CRIZ uses a 16-lead SOIC wide-body package (SOIC_W) with enhanced creepage distance (8.7 mm) and reinforced insulation construction per DIN EN IEC 60747-17 (VDE 0884-17). Pin 1 is marked with a dot; pins 1–8 form Side 1 (input), pins 9–16 form Side 2 (output).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 7, GND1 | Input-side ground reference | Provides low-impedance return path for Side 1 logic; must be connected to local input-domain ground plane |
| 3, VDD1 | Input-side supply | Accepts 3.0–5.5 V; powers input receiver and internal refresh logic; UVLO threshold = 2.4 V (−) |
| 4, VOA | Output A (Side 2) | Isolated logic output driven by input A; default-low behavior active when VDD1/VDD2 unpowered |
| 5, VIB | Input B (Side 1) | CMOS-compatible input accepting 0.3×VDD1–0.7×VDD1 thresholds; supports 100 Mbps switching |
| 12, VOB | Output B (Side 2) | Isolated logic output driven by input B; synchronized with VOA under same timing constraints |
| 13, VIA | Input A (Side 1) | Primary input channel; controls VOA state; compatible with 3 V or 5 V logic families |
| 14, VDD2 | Output-side supply | Accepts 3.0–5.5 V; powers output drivers and refresh circuitry; independent of VDD1 |
| 9, 16, GND2 | Output-side ground reference | Isolated return path for Side 2; must be separated from GND1 by ≥8.7 mm PCB clearance |
Key Features
| Feature | Design Value |
|---|---|
| Reinforced insulation | VIORM = 645 VPEAK per DIN EN IEC 60747-17; certified for 2-MOPP medical equipment and industrial safety-critical systems |
| DC-correct refresh | Automatic output state restoration within 1.6 µs after VDDx power-up; eliminates need for external reset sequencing |
| Bidirectional isolation | Independent input/output channels (VIA→VOA, VIB→VOB); supports full-duplex communication without cross-talk |
| Mixed-voltage operation | VDD1 = 3 V / VDD2 = 5 V (or vice versa); enables seamless interface between low-power sensors and high-voltage controllers |
| High CMTI immunity | >25 kV/μs common-mode transient rejection; sustains reliable operation in gate-driver feedback and motor-control environments |
Applications
| Industrial Motor Drives | Medical Patient Monitoring |
|---|---|
Use Scenario: Isolating gate driver feedback signals and current-sense ADC outputs in 3-phase inverter stacks. IC Role / Device Role / Timing Role: Dual-channel isolator providing independent, low-skew (≤5 ns) transmission of PWM enable and fault signals across 5 kVRMS barrier. Use Value: Prevents ground-loop noise from corrupting high-resolution current measurements while maintaining <24 ns timing fidelity for overcurrent protection. |
Use Scenario: Isolating ECG/EEG analog front-end digital control lines and SPI bus from main processor in Class II medical devices. IC Role / Device Role / Timing Role: Reinforced-isolation barrier meeting IEC 60601-1 2-MOPP requirements for patient-connected circuits. Use Value: Enables safe 3.3 V microcontroller communication with isolated 5 V ADCs while sustaining >25 kV/μs CMTI in defibrillator-survivable environments. |
| Isolated RS-485 Transceivers | Programmable Logic Controller I/O Modules |
Use Scenario: Signal-level isolation between MCU UART and RS-485 transceiver in factory automation networks. IC Role / Device Role / Timing Role: Bidirectional digital isolator handling TX/RX lines with 100 Mbps capability and default-low fail-safe state. Use Value: Guarantees known logic state during transceiver power-up or brownout, preventing bus contention and false frame detection. |
Use Scenario: Digital input conditioning and output drive isolation in modular PLC backplanes with mixed 24 V DC and 3.3 V logic domains. IC Role / Device Role / Timing Role: Level-translating isolator supporting 3 V–5.5 V supplies on both sides to interface field-side sensors with controller-side FPGAs. Use Value: Eliminates external level shifters while delivering 8.7 mm creepage for IEC 61010-1 industrial safety compliance. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual-channel digital isolator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ADuM2281CRIZ | Pin-compatible but default-high output; identical timing, isolation, and supply specs | Suitable where fail-safe logic requires high-state default on power loss | Select ADuM2281CRIZ only if system architecture mandates active-high assertion of isolated enable or interrupt lines |
| SI8621ED-IS | Capacitive isolation; VIORM = 500 VPEAK; 100 Mbps; SOIC-8 package (4.1 mm creepage) | Lacks medical 2-MOPP certification; lower working voltage rating limits use in high-voltage medical or industrial mains-connected systems | Choose SI8621ED-IS for cost-sensitive, non-medical applications where 500 VPEAK working voltage suffices and board space is constrained |
Compared with ADuM2286CRIZ, ADuM2281CRIZ offers identical performance except for default output polarity, making it a direct functional alternative where high-state failsafe is required; SI8621ED-IS trades reduced isolation robustness and safety certification for smaller footprint and lower unit cost in less demanding environments.
Availability
ADuM2286CRIZ is available at Aetrix Electronics and suitable for industrial motor drives, medical patient monitoring systems, and isolated RS-485 transceiver designs requiring stable component supply, long-term lifecycle support, and certified reinforced insulation.
Supply support for ADuM2286CRIZ includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.
Manufacturer
Analog Devices, Inc. is a global leader in high-performance analog, mixed-signal, and digital signal processing semiconductors, serving industrial, automotive, communications, and healthcare markets.
The ADuM228x family delivers high-speed, low-latency digital isolation using iCoupler® transformer technology, designed specifically for safety-critical industrial automation, medical instrumentation, and energy infrastructure applications.
FAQ
What is the default output state of ADuM2286CRIZ during power-up or input inactivity?
The ADuM2286CRIZ has a default-low output configuration: when either VDD1 or VDD2 is unpowered, or during extended input inactivity, both VOA and VOB settle to logic low within 1.6 µs after power restoration. This behavior is confirmed in Table 25 of the ADuM2286CRIZ datasheet and ensures fail-safe operation in critical control paths where undefined states could trigger hazardous conditions.
Does ADuM2286CRIZ support mixed-voltage operation between 3 V and 5 V domains?
Yes, ADuM2286CRIZ supports independent 3.0–5.5 V supplies on each side - for example, VDD1 = 3.3 V (microcontroller side) and VDD2 = 5 V (transceiver side). This enables seamless level translation without external components, as verified in Tables 7 and 10 of the ADuM2286CRIZ datasheet under mixed-voltage electrical characteristics.
What safety certifications apply to ADuM2286CRIZ?
ADuM2286CRIZ carries UL 1577 (5000 VRMS), DIN EN IEC 60747-17 (VDE 0884-17) reinforced insulation (645 VPEAK), IEC/CSA 60601-1 (2-MOPP), and IEC/CSA 61010-1 certifications. These are explicitly listed in Table 14 and Section 8 of the ADuM2286CRIZ datasheet, confirming suitability for medical and industrial safety-critical applications.
How does ADuM2286CRIZ maintain DC correctness without input transitions?
ADuM2286CRIZ incorporates a patented refresh circuit that periodically samples and retransmits the last valid input state across the isolation barrier - ensuring DC-correct output even during prolonged static input conditions. This mechanism operates with a 1.6 µs refresh period, as specified in Table 4 and Table 6 of the ADuM2286CRIZ datasheet.
What is the minimum creepage and clearance distance provided by the ADuM2286CRIZ SOIC-16W package?
The ADuM2286CRIZ SOIC-16W package provides a minimum external creepage and clearance distance of 8.7 mm between input (pins 1–8) and output (pins 9–16) terminals, as defined in Table 15 of the ADuM2286CRIZ datasheet. This meets reinforced insulation requirements for 645 VPEAK working voltage under pollution degree 2 and altitudes ≤2000 m.
ADUM2286CRIZ Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc.
- Series:
- iCoupler®
- Package/Case:
- 16-SOIC (0.295", 7.50mm Width)
- Packaging:
- Tube
- Product Status:
- Active
- Technology:
- Magnetic Coupling
- Type:
- General Purpose
- Isolated Power:
- No
- Number of Channels:
- 2
- Inputs - Side 1/Side 2:
- 1/1
- Channel Type:
- Unidirectional
- Voltage - Isolation:
- 5000Vrms
- Common Mode Transient Immunity (Min):
- 25kV/µs
- Data Rate:
- 100Mbps
- Propagation Delay tpLH / tpHL (Max):
- 24ns, 24ns
- Pulse Width Distortion (Max):
- 2ns
- Rise / Fall Time (Typ):
- 2.5ns, 2.5ns
- Voltage - Supply:
- 3V ~ 5.5V
- Grade:
- -
- Qualification:
- -
- Operating Temperature:
- -40°C ~ 125°C
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 16-SOIC
ADUM2286CRIZ FAQ
1.How can I place an order for ADUM2286CRIZ through Aetrix?
Please submit a Request for Quotation (RFQ) for ADUM2286CRIZ on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.
2.Are the price and stock information for ADUM2286CRIZ reliable?
The price and inventory of ADUM2286CRIZ are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ADUM2286CRIZ is usually 5 days.
3.What payment methods are accepted for ADUM2286CRIZ?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ADUM2286CRIZ transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for ADUM2286CRIZ?
ADUM2286CRIZ orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your ADUM2286CRIZ order is processed, you will receive an email with the shipment details and tracking number.
Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.
5.How can I obtain technical support or documentation for ADUM2286CRIZ?
For technical support, including ADUM2286CRIZ datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ADUM2286CRIZ requirements.
6.How does Aetrix verify that ADUM2286CRIZ is sourced from the original manufacturer or authorized distributors?
All ADUM2286CRIZ products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that ADUM2286CRIZ meets industry standards.
7.What is the process for return or replacement of ADUM2286CRIZ?
All ADUM2286CRIZ units undergo pre-shipment inspection (PSI). If there is an issue with ADUM2286CRIZ, returns or replacements are accepted under the following conditions:
1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.
2.The issue is reported within 90 days of delivery.
3.The ADUM2286CRIZ part is unused and in its original packaging.
Return procedure for ADUM2286CRIZ:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
ADUM2286CRIZ Tags
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