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Analog Devices Inc. ADUM1301CRWZ-RL
- Part No.:
- ADUM1301CRWZ-RL
- Manufacturer:
- Analog Devices Inc.
- Category:
- Digital Isolators
- Package:
- 16-SOIC (0.295", 7.50mm Width)
- Datasheet:
-
ADUM1301CRWZ-RL.pdf
- Description:
- DGTL ISO 2500VRMS 3CH GP 16SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:3,253
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Product details
Overview
ADUM1301CRWZ-RL from Analog Devices is a triple-channel, unidirectional digital isolator based on iCoupler® transformer technology, delivering 90 Mbps data rate, <2 ns pulse width distortion, and 2 ns channel-to-channel matching at 125°C. It supports bidirectional communication across isolation barrier with 3 V/5 V level translation and operates from 2.7 V to 5.5 V on both sides - used in SPI isolation, industrial fieldbus interfaces, and automotive ECUs requiring high CMTI (>25 kV/µs).
For engineers reviewing the ADUM1301CRWZ-RL datasheet, ADUM1301CRWZ-RL pinout, ADUM1301CRWZ-RL application, or ADUM1301CRWZ-RL equivalent, this page provides verified specifications, SOIC-16W package layout, functional differences vs. ADUM1300CRWZ-RL and ISO6731, real-world use value in RS-485 transceiver isolation, and supply-chain support for volume production.
Technical Context
The ADUM1301CRWZ-RL implements three independent isolation channels with inputs on one side (A-side) and outputs on the other (B-side), enabling unidirectional signal flow per channel - distinct from the bidirectional ADUM1300 family. Its iCoupler architecture replaces optocoupler LEDs/photodiodes with integrated micro-transformers, eliminating current transfer ratio drift and lifetime degradation.
It features an output enable (OE) function, refresh circuitry ensuring DC correctness during idle or single-supply conditions, and operates across −40°C to +125°C with guaranteed 90 Mbps NRZ performance and 560 VPEAK reinforced insulation per DIN EN IEC 60747-17 (VDE 0884-17).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Max Data Rate | 90 Mbps (NRZ) - supports high-speed SPI clocking and isolated CAN FD physical layer signaling without oversampling. |
| Pulse Width Distortion | <2 ns - preserves signal integrity in timing-critical applications like motor control PWM feedback loops. |
| Channel-to-Channel Matching | <2 ns - enables precise synchronization of multiple isolated control signals (e.g., three-phase gate drivers). |
| Common-Mode Transient Immunity | >25 kV/µs - maintains logic state integrity during fast-switching noise events in industrial inverters and EV battery management systems. |
| Isolation Voltage (VISO) | 2500 VRMS for 1 minute - meets UL 1577 and IEC/EN/CSA 62368-1 requirements for reinforced insulation in safety-critical subsystems. |
| Supply Voltage Range | 2.7 V to 5.5 V on both sides - allows direct interfacing with 3.3 V microcontrollers and 5 V legacy peripherals without level shifters. |
| Operating Temperature | −40°C to +125°C - qualified for under-hood automotive and industrial PLC environments. |
Pinout & Package
ADUM1301CRWZ-RL is housed in a 16-lead SOIC wide-body package (7.5 mm body width, 10.3 mm length) with creepage/clearance ≥8.3 mm, compliant with RoHS and reinforced insulation standards.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD1 | Primary-side power supply | Supplies A-side logic (inputs IA, IB, IC); accepts 2.7–5.5 V - enables mixed-voltage system integration. |
| GND1 | Primary-side ground reference | Return path for VDD1; must be separated from GND2 by ≥8.3 mm for reinforced isolation. |
| IA, IB, IC | Input channels A1–A3 | CMOS-compatible digital inputs referenced to VDD1/GND1; threshold: VIH = 2.0 V (5 V mode), 1.6 V (3 V mode). |
| VDD2 | Secondary-side power supply | Supplies B-side logic (outputs OA, OB, OC, OE); independent voltage domain enables level translation. |
| GND2 | Secondary-side ground reference | Return path for VDD2; galvanically isolated from GND1 - critical for noise rejection in motor drives. |
| OA, OB, OC | Output channels B1–B3 | CMOS outputs referenced to VDD2/GND2; VOH ≥ (VDD2 − 0.4 V) at 3.2 mA load - drives standard logic loads directly. |
| OE | Output enable control | Active-low input disabling all three outputs into high-impedance state; propagation delay ≤8 ns - supports hot-swap and fault isolation. |
Key Features
| Feature | Design Value |
|---|---|
| iCoupler® transformer isolation | Eliminates LED aging and CTR variation - ensures stable timing and 50+ year insulation lifetime per IEC 60747-17. |
| DC-correct refresh circuitry | Maintains valid output state during zero-input transitions or when only one supply is powered - essential for fail-safe ECU boot sequences. |
| 3 V/5 V level translation | Allows direct interface between 3.3 V MCU GPIOs and 5 V industrial sensors or actuators without external level shifters. |
| High-temperature operation | Guaranteed 90 Mbps performance up to +125°C ambient - validated for automotive powertrain and industrial motor control enclosures. |
| UL/VDE-certified reinforced insulation | VIORM = 560 VPEAK, VISO = 2500 VRMS/1 min - satisfies IEC 60601-1 (medical) and IEC 61010-1 (test equipment) safety requirements. |
Applications
| SPI Interface Isolation | RS-485 Transceiver Isolation |
|---|---|
|
Use Scenario: Isolating SPI bus between MCU and isolated ADC/DAC in industrial data acquisition systems. IC Role / Device Role / Timing Role: Unidirectional isolator for SCLK, MOSI, and MISO lines - preserving sub-ns timing alignment across isolation barrier. Use Value: Enables 90 Mbps SPI clocking while maintaining <2 ns pulse width distortion and 2 ns channel matching - critical for synchronized multi-channel sampling. |
Use Scenario: Galvanic isolation of RS-485 transceiver control lines (DE, RE, DI) in factory automation networks. IC Role / Device Role / Timing Role: Three-channel isolator separating MCU GPIOs from transceiver logic - preventing ground loop noise coupling into differential bus. Use Value: >25 kV/µs CMTI prevents false triggering during ESD events or inverter switching noise - improves network uptime in harsh EM environments. |
| Automotive Battery Management | Industrial Fieldbus Gateway |
|
Use Scenario: Isolating cell monitoring ICs from main BMS controller in EV traction battery packs. IC Role / Device Role / Timing Role: Unidirectional isolator for voltage/current measurement data streams and fault alerts - operating at 125°C under hood. Use Value: Guaranteed 90 Mbps throughput and DC-correct refresh ensure reliable telemetry even during extended idle periods or single-supply brownout conditions. |
Use Scenario: Isolating Modbus RTU or Profibus DP control signals between PLC CPU and field I/O modules. IC Role / Device Role / Timing Role: Channelized isolator for TX, RX, and enable signals - supporting 10–90 Mbps baud rates with minimal jitter accumulation. Use Value: SOIC-16W package provides 8.3 mm creepage for reinforced insulation - meets IEC 61000-4-5 surge immunity requirements in Class A industrial zones. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar digital isolator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ADUM1300CRWZ-RL | Bidirectional channel configuration (A→B and B→A per channel); identical speed, timing, and package. | Required where full-duplex isolated communication (e.g., I²C-like protocols) is needed instead of unidirectional SPI/UART control. | Select ADUM1301CRWZ-RL for dedicated A→B signal flow; choose ADUM1300CRWZ-RL only if reverse-direction isolation is required. |
| TI ISO6731DR | Capacitive isolation; 100 Mbps max rate; 3.75 kVRMS isolation; SOIC-16 package but 3.9 mm width (not wide-body). | Lacks reinforced insulation clearance - unsuitable for medical or high-voltage industrial applications requiring ≥2500 VRMS. | ISO6731DR fits space-constrained designs but cannot replace ADUM1301CRWZ-RL where UL/VDE reinforced certification or 8.3 mm creepage is mandated. |
Compared with ADUM1300CRWZ-RL, ADUM1301CRWZ-RL offers optimized unidirectional latency and lower dynamic power at 90 Mbps; versus ISO6731DR, it delivers certified reinforced insulation and superior CMTI for safety-critical deployments - making it the only choice for automotive ASIL-B and industrial functional safety architectures.
Availability
ADUM1301CRWZ-RL is available at Aetrix Electronics and suitable for industrial fieldbus gateways, automotive battery management systems, and high-speed SPI isolation requiring stable component supply, long-term lifecycle assurance, and traceable sourcing.
Supply support for ADUM1301CRWZ-RL 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 product line was designed specifically for high-reliability, high-speed digital isolation in safety-critical systems - emphasizing low jitter, guaranteed DC correctness, and regulatory-compliant reinforced insulation.
FAQ
What is the maximum guaranteed data rate for ADUM1301CRWZ-RL?
The ADUM1301CRWZ-RL is rated for a maximum guaranteed data rate of 90 Mbps (NRZ) across its full operating temperature range (−40°C to +125°C), with typical performance extending to 120 Mbps. This specification is validated per Table 1 and Table 3 in Rev. M datasheet under 5 V/3 V mixed-supply conditions and CL = 15 pF loading. The 90 Mbps guarantee ensures reliable operation in high-speed SPI, isolated UART, and digital encoder interfaces without bit errors.
Does ADUM1301CRWZ-RL support bidirectional communication on each channel?
No, ADUM1301CRWZ-RL is a unidirectional isolator: inputs IA, IB, IC reside exclusively on the A-side (VDD1/GND1 domain), and outputs OA, OB, OC reside exclusively on the B-side (VDD2/GND2 domain). Unlike the ADUM1300 series, it does not support reverse-direction signal flow. This architecture minimizes propagation delay skew and simplifies PCB routing for master-slave SPI or control-signal isolation where directionality is fixed.
What safety certifications apply to ADUM1301CRWZ-RL?
ADUM1301CRWZ-RL carries UL 1577 (2500 VRMS/1 min), DIN EN IEC 60747-17 (VDE 0884-17) with VIORM = 560 VPEAK, and compliance with IEC/EN/CSA 62368-1, EN 60950-1, IEC/CSA 60601-1, and IEC/CSA 61010-1. These certifications confirm reinforced insulation suitability for medical, industrial, and automotive applications - verified via dielectric withstand, partial discharge, and lifetime insulation resistance testing per standard protocols.
Can ADUM1301CRWZ-RL operate with different supply voltages on each side?
Yes, ADUM1301CRWZ-RL supports mixed-supply operation: VDD1 may be 3.3 V while VDD2 is 5 V (or vice versa), within 2.7–5.5 V per rail. This enables native 3 V/5 V level translation - for example, isolating a 3.3 V ARM Cortex-M MCU's SPI lines to a 5 V isolated ADC without external level shifters. Input thresholds scale accordingly (VIH = 1.6 V at 3 V, 2.0 V at 5 V), and output drive strength adapts to the local VDD2.
How does the output enable (OE) pin function on ADUM1301CRWZ-RL?
The OE pin on ADUM1301CRWZ-RL is an active-low control that places all three outputs (OA, OB, OC) into high-impedance state when asserted. Propagation delay from OE transition to output disable is ≤8 ns (tPHZ/tPLZ), and enable delay is also ≤8 ns (tPZH/tPZL). This allows dynamic bus sharing, hot-swap capability, and fault containment - for instance, disabling isolated transceiver drivers during overvoltage detection while preserving upstream logic states.
ADUM1301CRWZ-RL Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc.
- Series:
- iCoupler®
- Package/Case:
- 16-SOIC (0.295", 7.50mm Width)
- Packaging:
- Tape & Reel (TR)
- 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:
- 90Mbps
- Propagation Delay tpLH / tpHL (Max):
- 32ns, 32ns
- Pulse Width Distortion (Max):
- 2ns
- Rise / Fall Time (Typ):
- 2.5ns, 2.5ns
- Voltage - Supply:
- 2.7V ~ 5.5V
- Grade:
- -
- Qualification:
- -
- Operating Temperature:
- -40°C ~ 105°C
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 16-SOIC
ADUM1301CRWZ-RL FAQ
1.How can I place an order for ADUM1301CRWZ-RL through Aetrix?
Please submit a Request for Quotation (RFQ) for ADUM1301CRWZ-RL 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 ADUM1301CRWZ-RL reliable?
The price and inventory of ADUM1301CRWZ-RL are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ADUM1301CRWZ-RL is usually 5 days.
3.What payment methods are accepted for ADUM1301CRWZ-RL?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ADUM1301CRWZ-RL transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for ADUM1301CRWZ-RL?
ADUM1301CRWZ-RL orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your ADUM1301CRWZ-RL 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 ADUM1301CRWZ-RL?
For technical support, including ADUM1301CRWZ-RL datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ADUM1301CRWZ-RL requirements.
6.How does Aetrix verify that ADUM1301CRWZ-RL is sourced from the original manufacturer or authorized distributors?
All ADUM1301CRWZ-RL 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 ADUM1301CRWZ-RL meets industry standards.
7.What is the process for return or replacement of ADUM1301CRWZ-RL?
All ADUM1301CRWZ-RL units undergo pre-shipment inspection (PSI). If there is an issue with ADUM1301CRWZ-RL, 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 ADUM1301CRWZ-RL part is unused and in its original packaging.
Return procedure for ADUM1301CRWZ-RL:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
ADUM1301CRWZ-RL Tags
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ISO1212DBQR
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SI8710AC-B-ISR
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ISO7720FDR
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ISO6741FQDWRQ1
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ISO7741DWR
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ISO7741FDWR
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