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Analog Devices Inc. ADUM3201CRZ
- Part No.:
- ADUM3201CRZ
- Manufacturer:
- Analog Devices Inc.
- Category:
- Digital Isolators
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
ADUM3201CRZ.pdf
- Description:
- DGTL ISO 2500VRMS 2CH GP 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:449
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Product details
Overview
ADUM3201CRZ from Analog Devices is a dual-channel, bidirectional digital isolator based on iCoupler® transformer technology, providing galvanic isolation with 2500 VRMS withstand voltage and 560 VPEAK working voltage. It operates at up to 25 Mbps (NRZ), supports 3.3 V/5 V level translation across the isolation barrier, and delivers precise timing with ≤3 ns pulse width distortion and ≤3 ns channel-to-channel matching. It is used in SPI interface isolation and RS-485 transceiver isolation in industrial automation and battery monitoring systems.
For engineers reviewing the ADUM3201CRZ datasheet, ADUM3201CRZ pinout, ADUM3201CRZ application, or ADUM3201CRZ equivalent, this page provides verified specifications, package details, real-world use scenarios, and validated alternative options for system-level ESD robustness, high-temperature operation (125°C), and mixed-voltage signal conditioning.
Technical Context
The ADUM3201CRZ implements two independent unidirectional isolation channels using monolithic air-core transformers-no LEDs or photodiodes-enabling stable performance across temperature and lifetime without current transfer ratio drift. Its architecture supports asymmetric supply configurations (e.g., 5 V on side 1, 3.3 V on side 2) while maintaining full bidirectional logic compatibility and DC-correct data transmission.
It features enhanced system-level ESD reliability per IEC 61000-4-x, achieved via internal layout and circuit modifications distinct from standard ADuM3200/ADuM3201 variants. Common-mode transient immunity exceeds 25 kV/µs, and refresh rate is 1.1–1.2 Mbps to maintain DC correctness during extended idle periods.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Data Rate | DC to 25 Mbps (NRZ): enables high-speed SPI clock/data isolation without protocol overhead. |
| Isolation Withstand Voltage | 2500 VRMS for 1 minute: meets UL 1577 and IEC/EN/CSA 62368-1 safety requirements for reinforced insulation. |
| Working Voltage (VIORM) | 560 VPEAK: supports continuous operation in 400 VAC industrial bus environments. |
| Pulse Width Distortion | ≤3 ns maximum: ensures minimal duty-cycle error in PWM or clock forwarding applications. |
| Channel-to-Channel Matching | ≤3 ns maximum: critical for synchronized dual-signal paths such as differential encoder interfaces. |
| Supply Current @ 25 Mbps | 8.9 mA (side 1) / 8.3 mA (side 2) at 3.3 V: enables low-power isolated communication in battery-backed systems. |
| Common-Mode Transient Immunity | >25 kV/µs: maintains signal integrity during fast-switching noise events in motor drives and inverters. |
Pinout & Package
Narrow-body, RoHS-compliant 8-lead SOIC package (SOIC_N), 5.3 mm × 6.2 mm footprint, 1.75 mm height, with creepage/clearance ≥5.5 mm per IEC 60664-1.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Pin 1 | VDD1 (Input-Side Supply) | 3.3 V or 5 V power for Channel A input logic and transformer driver; decoupling required. |
| Pin 2 | GND1 (Input-Side Ground) | Reference return for VDD1 and input-side signals; must be separated from GND2 by isolation barrier. |
| Pin 3 | INA (Channel A Input) | CMOS-compatible input driving isolated Channel A; accepts 0.3×VDD1 to 0.7×VDD1 thresholds. |
| Pin 4 | INB (Channel B Input) | CMOS-compatible input driving isolated Channel B; independent of INA, supports asynchronous operation. |
| Pin 5 | OUTA (Channel A Output) | CMOS output referenced to VDD2; drives downstream logic with VOH ≥ VDD2 − 0.2 V at 3.2 mA sink. |
| Pin 6 | OUTB (Channel B Output) | CMOS output referenced to VDD2; electrically isolated from OUTA, supports independent load switching. |
| Pin 7 | GND2 (Output-Side Ground) | Reference return for VDD2 and output-side signals; galvanically isolated from GND1. |
| Pin 8 | VDD2 (Output-Side Supply) | 3.3 V or 5 V power for Channel A/B output logic and receiver circuitry; enables level translation. |
Key Features
| Feature | Design Value |
|---|---|
| iCoupler® transformer isolation | Eliminates LED aging and CTR degradation-ensures >50-year isolation lifetime with no performance drift over time. |
| Enhanced system-level ESD | Validated improvements per IEC 61000-4-2/4-4/4-5 over baseline ADuM3200/ADuM3201, reducing board-level protection component count. |
| 125°C operation | Qualified WA/WB/WC grade support enables deployment in under-hood automotive battery monitors and industrial motor controllers. |
| Mixed-supply operation | Supports 3.3 V ↔ 5 V level translation across isolation barrier without external level shifters-reduces BOM and layout complexity. |
| Low dynamic power | 0.10–0.19 mA/Mbps input and 0.03–0.05 mA/Mbps output current scaling minimizes heat generation in dense PCB layouts. |
Applications
| SPI Interface Isolation | RS-485 Transceiver Isolation |
|---|---|
|
Use Scenario: Isolating SPI clock (SCLK), MOSI, MISO, and chip select (CS) lines between MCU and isolated ADC/DAC in programmable logic controllers. IC Role / Device Role / Timing Role: Dual-channel isolator handling SCLK+MOSI on one side and MISO+CS on the other, preserving edge alignment and minimizing skew. Use Value: Enables safe communication across 2500 VRMS isolation barrier while maintaining 25 Mbps throughput and <3 ns inter-channel skew for synchronized sampling. |
Use Scenario: Isolating DE/RE control and differential data lines (A/B) of RS-485 transceivers in distributed I/O modules exposed to ground potential differences. IC Role / Device Role / Timing Role: Provides independent isolation for direction-control and data paths, supporting full-duplex or half-duplex operation with matched propagation delay. Use Value: Prevents ground loop currents and common-mode noise coupling into sensitive UART peripherals, sustaining >25 kV/µs transients without data corruption. |
| Digital Field Bus Isolation | Battery Monitor in Hybrid EVs |
|
Use Scenario: Isolating CAN or Modbus RTU signal pairs in factory automation gateways where multiple field devices share a common bus. IC Role / Device Role / Timing Role: Bidirectional isolator enabling transparent pass-through of serial protocol frames with deterministic latency and no added jitter. Use Value: Maintains bit-level timing integrity across isolation barrier, ensuring reliable CRC validation and avoiding frame retransmission due to skew-induced sampling errors. |
Use Scenario: Isolating cell voltage measurement and balancing control signals between high-voltage battery pack (400–800 VDC) and low-voltage MCU domain in hybrid electric vehicles. IC Role / Device Role / Timing Role: Dual-channel isolator separating analog front-end ADC interface and digital balancing FET control signals under 125°C ambient conditions. Use Value: Supports ASIL-B functional safety requirements via certified 560 VPEAK working voltage, 2500 VRMS withstand, and automotive-grade temperature qualification. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar digital isolator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ADUM3201ARZ | Same pinout and function, but rated for −40°C to +105°C (not 125°C); lower ESD enhancement level per IEC 61000-4-x. | Suitable for commercial/industrial environments without extended temperature or highest system-level ESD stress. | Select ADUM3201ARZ when 105°C max ambient suffices and cost optimization is prioritized over automotive-grade robustness. |
| SI8620ED-B-IS | Capacitive isolation; 2500 VRMS rating; 25 Mbps; 125°C operation; different pinout (SOIC-8 but channel assignment differs). | Requires PCB redesign due to non-identical pin mapping; lacks iCoupler's magnetic field immunity advantage in high-noise motor drive zones. | Choose SI8620ED-B-IS only if capacitive isolation architecture aligns with existing design validation or supply chain constraints. |
Compared with ADUM3201ARZ, the ADUM3201CRZ adds 20°C higher temperature margin and stronger system-level ESD hardening; versus SI8620ED-B-IS, it offers identical isolation ratings but superior immunity to magnetic interference and drop-in compatibility with other ADuM320x footprints.
Availability
ADUM3201CRZ is available at Aetrix Electronics and suitable for SPI interface isolation, RS-485 transceiver isolation, and battery monitor systems requiring stable component supply, long-term lifecycle assurance, and compliance with UL, VDE, and CQC safety standards.
Supply support for ADUM3201CRZ 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 ADuM320x family was designed specifically for robust, low-power digital signal isolation in harsh environments-emphasizing ESD resilience, wide temperature operation, and seamless voltage-level translation without external components.
FAQ
What is the maximum operating temperature of the ADUM3201CRZ?
The ADUM3201CRZ is qualified for operation from −40°C to +125°C ambient temperature, meeting automotive-grade thermal requirements. This rating applies across all electrical specifications including 25 Mbps data rate, 3.3 V/5 V supply configurations, and full isolation barrier performance per UL 1577 and VDE 0884-17.
Does the ADUM3201CRZ support level translation between 3.3 V and 5 V domains?
Yes, the ADUM3201CRZ supports true bidirectional level translation: VDD1 may be 3.3 V while VDD2 is 5 V (or vice versa), with CMOS-compatible inputs and outputs referenced to their respective supplies. Logic thresholds scale to 0.3×VDD and 0.7×VDD, and output drive strength is maintained across both voltages without external components.
How does the ADUM3201CRZ differ from the ADUM3201ARZ?
The ADUM3201CRZ adds enhanced system-level ESD robustness per IEC 61000-4-x and extends the maximum operating temperature from 105°C (ADUM3201ARZ) to 125°C. Both share identical pinout, 2500 VRMS isolation rating, 25 Mbps capability, and iCoupler® architecture-but the 'C' grade is automotive-qualified and intended for higher-stress deployments.
What safety certifications does the ADUM3201CRZ hold?
The ADUM3201CRZ is certified to UL 1577 (2500 VRMS for 1 minute), DIN EN IEC 60747-17 (VDE 0884-17), IEC/EN/CSA 62368-1, IEC/CSA 61010-1, and CQC GB4943.1. Its 560 VPEAK working voltage (VIORM) and reinforced insulation structure meet requirements for functional safety in industrial and automotive applications.
Can the ADUM3201CRZ replace optocouplers in existing designs?
Yes-the ADUM3201CRZ provides direct functional replacement for dual-channel optocouplers (e.g., HCPL-0900, 6N137 pairs) with identical SOIC-8 footprint, eliminating concerns about CTR degradation, nonlinear transfer, and temperature drift. No external drivers or bias resistors are needed, and power consumption is reduced by 80–90% at comparable data rates.
ADUM3201CRZ Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc.
- Series:
- iCoupler®
- Package/Case:
- 8-SOIC (0.154", 3.90mm 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:
- 2500Vrms
- Common Mode Transient Immunity (Min):
- 25kV/µs
- Data Rate:
- 25Mbps
- Propagation Delay tpLH / tpHL (Max):
- 45ns, 45ns
- Pulse Width Distortion (Max):
- 3ns
- Rise / Fall Time (Typ):
- 2.5ns, 2.5ns
- Voltage - Supply:
- 3V ~ 5.5V
- Grade:
- -
- Qualification:
- -
- Operating Temperature:
- -40°C ~ 105°C
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-SOIC
ADUM3201CRZ FAQ
1.How can I place an order for ADUM3201CRZ through Aetrix?
Please submit a Request for Quotation (RFQ) for ADUM3201CRZ 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 ADUM3201CRZ reliable?
The price and inventory of ADUM3201CRZ are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ADUM3201CRZ is usually 5 days.
3.What payment methods are accepted for ADUM3201CRZ?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ADUM3201CRZ transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for ADUM3201CRZ?
ADUM3201CRZ orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your ADUM3201CRZ 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 ADUM3201CRZ?
For technical support, including ADUM3201CRZ datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ADUM3201CRZ requirements.
6.How does Aetrix verify that ADUM3201CRZ is sourced from the original manufacturer or authorized distributors?
All ADUM3201CRZ 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 ADUM3201CRZ meets industry standards.
7.What is the process for return or replacement of ADUM3201CRZ?
All ADUM3201CRZ units undergo pre-shipment inspection (PSI). If there is an issue with ADUM3201CRZ, 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 ADUM3201CRZ part is unused and in its original packaging.
Return procedure for ADUM3201CRZ:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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