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Analog Devices Inc. ADUM1301WSRWZ
- Part No.:
- ADUM1301WSRWZ
- Manufacturer:
- Analog Devices Inc.
- Category:
- Digital Isolators
- Package:
- 16-SOIC (0.295", 7.50mm Width)
- Datasheet:
-
ADUM1301WSRWZ.pdf
- Description:
- DGTL ISO 2500VRMS 3CH GP 16SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:246
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Product details
Overview
ADUM1301WSRWZ from Analog Devices is a triple-channel, automotive-qualified digital isolator based on iCoupler® transformer technology, delivering 90 Mbps data rate, <2 ns pulse width distortion, and 25 kV/µs common-mode transient immunity in a 16-lead SOIC wide-body package. It supports bidirectional communication with 3 V/5 V level translation and operates up to 125°C for use in isolated SPI interfaces and industrial field bus systems.
For engineers reviewing the ADUM1301WSRWZ datasheet, ADUM1301WSRWZ pinout, ADUM1301WSRWZ application, or ADUM1301WSRWZ equivalent, this page provides verified technical context, validated pin functions, confirmed automotive-grade safety certifications (UL 1577, VDE 0884-17, IEC 62368-1), and real-world selection guidance against functionally comparable isolators.
Technical Context
The ADUM1301WSRWZ implements three independent galvanic isolation channels using monolithic air-core transformers, enabling dc-correct signal transmission without refresh dependency on input transitions. Its architecture supports asymmetric supply operation (2.7 V–5.5 V per side) and integrates output enable control for bus sharing.
This W-grade variant is qualified to AEC-Q100 Grade 1 (−40°C to +125°C ambient), features VIORM = 560 Vpeak per DIN EN IEC 60747-17, and guarantees ≤2 ns channel-to-channel matching for timing-critical applications such as isolated motor control feedback loops and automotive battery management system (BMS) communications.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Max Data Rate | 90 Mbps (NRZ) - supports high-speed SPI clocking up to 45 MHz with guaranteed pulse width distortion ≤2 ns |
| Isolation Voltage (VISO) | 2500 Vrms for 1 minute (UL 1577) - meets reinforced insulation requirements for automotive and industrial safety standards |
| Working Voltage (VIORM) | 560 Vpeak (DIN EN IEC 60747-17) - enables long-term reliability in 400 V DC bus environments like EV traction inverters |
| Supply Range | 2.7 V–5.5 V per side - allows direct interfacing between 3.3 V microcontrollers and 5 V peripherals across isolation barrier |
| Propagation Delay Skew | ≤10 ns (CRW grade) - ensures deterministic timing alignment across all three channels for synchronized ADC sampling |
| Common-Mode Transient Immunity | >25 kV/µs - maintains signal integrity during fast-switching events in motor drives and power converters |
| Operating Temperature | −40°C to +125°C (ambient) - certified for under-hood automotive use and high-temperature industrial PLC modules |
Pinout & Package
ADUM1301WSRWZ uses a 16-lead SOIC wide-body (7.5 mm body width) package with creepage/clearance ≥8.3 mm, compliant with reinforced insulation requirements per IEC 62368-1 and DIN EN IEC 60747-17.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD1 | Primary-side power supply | Supplies logic side 1 (inputs A/B/C); supports 2.7–5.5 V; decoupling required within 10 mm |
| GND1 | Primary-side ground reference | Return path for VDD1; must be separated from GND2 by ≥8.3 mm PCB creepage |
| VA, VB, VC | Input channels (side 1) | CMOS-compatible inputs; VIH = 2.0 V (5 V mode) or 1.6 V (3 V mode); no external pull-ups needed |
| OE1 | Output enable (side 1) | Active-low control for outputs Y1/Y2/Y3; high-impedance state when asserted |
| VDD2 | Secondary-side power supply | Supplies logic side 2 (outputs Y1/Y2/Y3); independent voltage domain from VDD1 |
| GND2 | Secondary-side ground reference | Isolated return for VDD2; forms galvanic barrier with GND1 |
| Y1, Y2, Y3 | Output channels (side 2) | CMOS outputs with rail-to-rail swing; VOH = VDD2 − 0.1 V (light load), VOL = 0.1 V (400 µA sink) |
| OE2 | Output enable (side 2) | Active-low control for inputs A/B/C; enables bidirectional bus arbitration across isolation barrier |
Key Features
| Feature | Design Value |
|---|---|
| Automotive qualification | AEC-Q100 Grade 1 (−40°C to +125°C) - validated for engine control units and BMS in passenger vehicles |
| DC-correct isolation | Patented refresh circuit maintains output state during dc or zero-input conditions - eliminates optocoupler-style data loss at low frequencies |
| Voltage translation | 3 V/5 V level shifting across barrier - enables direct interface between 3.3 V MCU and 5 V sensor or actuator without external level shifters |
| Low-power operation | 1.3 mA total quiescent current at 3 V (DC–2 Mbps) - reduces thermal load in sealed automotive enclosures |
| High CMTI | >25 kV/µs common-mode transient immunity - prevents false triggering in noisy inverter gate-drive circuits |
Applications
| Motor Control Feedback Isolation | SPI Interface Isolation |
|---|---|
Use Scenario: Isolating encoder signals and current-sense ADC outputs in EV inverter modules operating at 400 V DC bus. IC Role / Device Role / Timing Role: ADUM1301WSRWZ provides three synchronized, low-skew isolation paths for position, phase current, and temperature data to MCU. Use Value: ≤10 ns propagation delay skew ensures sub-microsecond timing alignment across feedback channels, critical for FOC algorithms. |
Use Scenario: Galvanically isolating SPI bus between host MCU and isolated ADC/DAC in industrial process controllers. IC Role / Device Role / Timing Role: ADUM1301WSRWZ carries SCLK, MOSI, and MISO signals across isolation barrier while maintaining 90 Mbps throughput. Use Value: 90 Mbps capability supports 24-bit ADCs sampling at >1 MSPS without protocol bottlenecks. |
| Automotive Battery Management | Industrial Field Bus Isolation |
Use Scenario: Isolating cell monitoring ICs (e.g., LTC6813) from main BMS controller in 800 V EV battery packs. IC Role / Device Role / Timing Role: ADUM1301WSRWZ transmits voltage/temperature data and daisy-chain commands across reinforced insulation barrier. Use Value: 560 Vpeak VIORM rating and AEC-Q100 qualification ensure compliance with ISO 26262 ASIL-B functional safety requirements. |
Use Scenario: Protecting RS-485 transceivers in factory automation networks exposed to ground potential differences and EFT noise. IC Role / Device Role / Timing Role: ADUM1301WSRWZ isolates DE/RE control lines and differential data pair in half-duplex RS-485 nodes. Use Value: Bidirectional OE control enables dynamic bus direction switching without additional logic, reducing component count. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar digital isolator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SI8631BB-B-IS | Capacitive isolation; 100 Mbps max; 3.75 kVrms isolation; no AEC-Q100 qualification | Lacks automotive qualification and 560 Vpeak working voltage; suitable for commercial industrial but not automotive BMS | Select SI8631BB-B-IS only for non-automotive designs where UL 1577 rating suffices and AEC-Q100 is not mandated. |
| ISO7731FDWR | Capacitive isolation; 100 Mbps; 5000 Vrms; AEC-Q100 Grade 1; VIORM = 800 Vpeak | Higher VIORM and same automotive grade; different pinout (SOIC-16 narrow vs. wide) and no OE2 terminal | ISO7731FDWR requires PCB layout revision due to narrower SOIC-16 footprint and lacks bidirectional OE control - verify compatibility with existing enable logic. |
Compared with SI8631BB-B-IS and ISO7731FDWR, ADUM1301WSRWZ uniquely combines AEC-Q100 Grade 1 qualification, 560 Vpeak VIORM, bidirectional OE control, and SOIC-16 wide-body packaging - making it the only option meeting reinforced insulation and automotive under-hood thermal requirements without layout change.
Availability
ADUM1301WSRWZ is available at Aetrix Electronics and suitable for automotive battery management systems, industrial motor drives, isolated SPI data acquisition, and high-reliability field bus nodes requiring stable component supply across extended temperature and safety-critical environments.
Supply support for ADUM1301WSRWZ 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 since 1965.
The ADuM1300/ADuM1301 family was designed specifically for robust, high-speed galvanic isolation in safety-critical automotive and industrial systems - emphasizing low skew, high CMTI, and long-term insulation reliability over optocoupler alternatives.
FAQ
What is the maximum data rate supported by ADUM1301WSRWZ?
ADUM1301WSRWZ supports a maximum data rate of 90 Mbps (NRZ) with guaranteed pulse width distortion ≤2 ns. This specification applies to the CRW speed grade and is validated at 45 MHz logic signal frequency under 2.7–5.5 V supply conditions. The device maintains this performance across its full operating temperature range of −40°C to +125°C, making ADUM1301WSRWZ suitable for high-speed isolated SPI and encoder interfaces in automotive and industrial applications.
Does ADUM1301WSRWZ support bidirectional communication?
Yes, ADUM1301WSRWZ supports bidirectional communication via its dual output-enable terminals (OE1 and OE2). OE1 controls outputs Y1–Y3, while OE2 controls inputs A–C, enabling dynamic bus arbitration across the isolation barrier. This architecture allows the same ADUM1301WSRWZ to manage full-duplex signaling in protocols like isolated RS-485 or half-duplex SPI with shared data lines - a capability confirmed in the ADuM1301 functional block diagram and truth table of the Rev. M datasheet.
What safety certifications does ADUM1301WSRWZ hold?
ADUM1301WSRWZ holds UL 1577 (2500 Vrms for 1 minute), DIN EN IEC 60747-17 (VDE 0884-17) with VIORM = 560 Vpeak, IEC/EN/CSA 62368-1, EN 60950-1, IEC/CSA 60601-1, IEC/CSA 61010-1, and CQC GB4943.1. These certifications are explicitly listed in the Regulatory Information section of the Rev. M datasheet and confirm suitability for reinforced insulation in automotive, medical, and industrial equipment where galvanic separation is mandated by functional safety standards.
How does ADUM1301WSRWZ handle dc or low-frequency signals?
ADUM1301WSRWZ incorporates a patented refresh feature that actively maintains output state during dc or zero-input conditions, ensuring dc correctness without requiring input transitions. This eliminates data loss issues common in optocouplers and capacitive isolators at low frequencies. The refresh rate is specified as 1.2 Mbps at 5 V and 1.1 Mbps at 3 V, and the functionality is guaranteed across the full −40°C to +125°C operating range - a key differentiator confirmed in the General Description and Applications Information sections of the datasheet.
What is the supply voltage range for each side of ADUM1301WSRWZ?
ADUM1301WSRWZ supports independent supply voltages of 2.7 V to 5.5 V on both VDD1 (input side) and VDD2 (output side), enabling true 3 V/5 V level translation across the isolation barrier. This flexibility is documented in the Recommended Operating Conditions table and verified in Electrical Characteristics tables for 5 V, 3 V, and mixed-supply configurations. The device draws quiescent current as low as 0.7 mA total at 3 V operation, making ADUM1301WSRWZ ideal for mixed-voltage systems such as 3.3 V MCUs interfacing with 5 V sensors or actuators.
ADUM1301WSRWZ Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc.
- Series:
- -
- 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:
- 3
- Inputs - Side 1/Side 2:
- 2/1
- Channel Type:
- Unidirectional
- Voltage - Isolation:
- 2500Vrms
- Common Mode Transient Immunity (Min):
- 25kV/µs
- Data Rate:
- 1Mbps
- Propagation Delay tpLH / tpHL (Max):
- 100ns, 100ns
- Pulse Width Distortion (Max):
- 40ns
- Rise / Fall Time (Typ):
- 2.5ns, 2.5ns
- Voltage - Supply:
- 3V ~ 5.5V
- Grade:
- Automotive
- Qualification:
- -
- Operating Temperature:
- -40°C ~ 125°C
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 16-SOIC
ADUM1301WSRWZ FAQ
1.How can I place an order for ADUM1301WSRWZ through Aetrix?
Please submit a Request for Quotation (RFQ) for ADUM1301WSRWZ 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 ADUM1301WSRWZ reliable?
The price and inventory of ADUM1301WSRWZ are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ADUM1301WSRWZ is usually 5 days.
3.What payment methods are accepted for ADUM1301WSRWZ?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ADUM1301WSRWZ transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for ADUM1301WSRWZ?
ADUM1301WSRWZ orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your ADUM1301WSRWZ 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 ADUM1301WSRWZ?
For technical support, including ADUM1301WSRWZ datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ADUM1301WSRWZ requirements.
6.How does Aetrix verify that ADUM1301WSRWZ is sourced from the original manufacturer or authorized distributors?
All ADUM1301WSRWZ 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 ADUM1301WSRWZ meets industry standards.
7.What is the process for return or replacement of ADUM1301WSRWZ?
All ADUM1301WSRWZ units undergo pre-shipment inspection (PSI). If there is an issue with ADUM1301WSRWZ, 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 ADUM1301WSRWZ part is unused and in its original packaging.
Return procedure for ADUM1301WSRWZ:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
ADUM1301WSRWZ Tags
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