My Inquiry
My Account
Analog Devices Inc. ADUM1301WSRWZ-RL
- Part No.:
- ADUM1301WSRWZ-RL
- Manufacturer:
- Analog Devices Inc.
- Category:
- Digital Isolators
- Package:
- 16-SOIC (0.295", 7.50mm Width)
- Datasheet:
-
ADUM1301WSRWZ-RL.pdf
- Description:
- DGTL ISO 2500VRMS 3CH GP 16SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:1,000
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
ADUM1301WSRWZ-RL from Analog Devices is a triple-channel, bidirectional digital isolator based on iCoupler® transformer technology, rated for automotive applications (AEC-Q100 Grade 1), operating from 2.7 V to 5.5 V on both sides, delivering up to 90 Mbps data rate, <2 ns pulse width distortion, and >25 kV/μs common-mode transient immunity. It enables SPI isolation and voltage translation in battery management systems.
For engineers reviewing the ADUM1301WSRWZ-RL datasheet, ADUM1301WSRWZ-RL pinout, ADUM1301WSRWZ-RL application, or ADUM1301WSRWZ-RL equivalent, this page provides verified specifications, SOIC-16W package details, channel configuration, automotive-grade safety certifications (UL, VDE, IEC/EN/CSA 62368-1), and validated alternatives for high-reliability isolated communication design.
Technical Context
The ADUM1301WSRWZ-RL implements three independent galvanic isolation channels using monolithic air-core transformers, supporting bidirectional signal flow with integrated refresh circuitry ensuring DC correctness during idle or single-supply conditions. Its architecture eliminates optocoupler limitations such as CTR drift and temperature-dependent timing.
It supports mixed-voltage operation (3 V/5 V or 5 V/3 V across isolation barrier), features output enable control, and guarantees precise timing: propagation delay ≤32 ns (CRW grade), channel-to-channel matching ≤5 ns (opposing-directional), and pulse width distortion ≤2 ns - all specified at 125°C ambient.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Isolation Rating | 2500 Vrms (1 min UL 1577); VIORM = 560 Vpeak per DIN EN IEC 60747-17 (VDE 0884-17) |
| Max Data Rate | 90 Mbps NRZ - supports high-speed SPI, RS-485, and CAN FD interface isolation without oversampling |
| Supply Voltage Range | 2.7 V to 5.5 V on both VDD1 and VDD2 - enables level translation between 3.3 V MCU and 5 V peripheral domains |
| Pulse Width Distortion | ≤2 ns - ensures minimal duty-cycle degradation in clock-forwarding or PWM isolation applications |
| Common-Mode Transient Immunity | >25 kV/μs - maintains signal integrity in noisy motor drive or EV powertrain environments |
| Operating Temperature | −40°C to +125°C - qualified per AEC-Q100 Grade 1 for under-hood automotive use |
| Propagation Delay Skew | ≤10 ns - enables tight timing alignment across isolated control signals in multi-phase inverters |
Pinout & Package
ADUM1301WSRWZ-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, optimized for reinforced insulation in automotive and industrial systems.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD1 | Primary-side supply | Power for input-side logic and channel transmitters; accepts 2.7–5.5 V |
| GND1 | Primary-side ground | Reference for inputs A, B, C and output enable OE1 |
| VA, VB, VC | Input channels (side 1) | CMOS-compatible digital inputs; support 3 V/5 V logic thresholds depending on VDD1 |
| OE1 | Primary-side output enable | Active-low control enabling/disabling outputs Y, Z, X (high-impedance when asserted) |
| VDD2 | Secondary-side supply | Power for output-side logic and receivers; independent 2.7–5.5 V domain |
| GND2 | Secondary-side ground | Reference for outputs Y, Z, X and OE2 |
| VY, VZ, VX | Output channels (side 2) | CMOS outputs referenced to VDD2; drive loads up to 3.2 mA |
| OE2 | Secondary-side output enable | Active-low control enabling/disabling inputs A, B, C (high-impedance when asserted) |
Key Features
| Feature | Design Value |
|---|---|
| Automotive qualification | AEC-Q100 Grade 1 (−40°C to +125°C) - certified for battery management, ADAS sensor interfaces, and traction inverter control |
| Bidirectional channel configuration | Three independent channels with configurable directionality - supports full-duplex SPI isolation without external logic |
| DC-correct refresh circuitry | Patented internal refresh ensures output state retention during DC or no-signal conditions - eliminates need for external watchdog timers |
| Low-power high-speed operation | 43 mA total VDD1 current at 90 Mbps (3 V/5 V mode) - enables energy-efficient isolation in always-on vehicle networks |
| High CMTI robustness | >25 kV/μs common-mode transient immunity - sustains reliable operation during fast-switching events in 800 V EV architectures |
Applications
| Battery Management System (BMS) | SPI Isolation for Data Converters |
|---|---|
Use Scenario: Isolating cell voltage monitoring ICs (e.g., LTC6813) from MCU in 400–800 V battery packs. IC Role / Device Role / Timing Role: ADUM1301WSRWZ-RL provides galvanic separation for SPI SCLK/MOSI/MISO lines while maintaining sub-2 ns timing fidelity. Use Value: Enables safe, accurate high-resolution voltage sampling across stacked battery modules without ground loop interference or noise coupling. |
Use Scenario: Isolating SAR ADCs (e.g., AD7682) in industrial PLC analog input modules. IC Role / Device Role / Timing Role: ADUM1301WSRWZ-RL transmits conversion clocks and data across isolation barrier with <10 ns skew between channels. Use Value: Preserves 16-bit measurement accuracy by eliminating jitter-induced aperture uncertainty in isolated data acquisition paths. |
| Automotive Inverter Control | RS-485 Fieldbus Isolation |
Use Scenario: Isolating gate driver enable/disable signals and fault feedback in traction inverter half-bridges. IC Role / Device Role / Timing Role: ADUM1301WSRWZ-RL delivers matched propagation delays (<5 ns) for synchronized high-side/low-side gate drive commands. Use Value: Prevents shoot-through by ensuring precise timing coordination across isolated power stages in SiC-based inverters. |
Use Scenario: Galvanically isolating RS-485 transceivers (e.g., ADM3485E) in factory automation networks. IC Role / Device Role / Timing Role: ADUM1301WSRWZ-RL isolates DE/RE control and differential data lines (A/B) with bidirectional capability. Use Value: Eliminates ground potential differences between nodes, preventing bus lockup and enabling multi-drop topology over long cable runs. |
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; 2.5 kVrms rating; no AEC-Q100 qualification | Lacks automotive qualification and reinforced insulation; lower CMTI (20 kV/μs) | Preferred for cost-sensitive industrial designs where AEC-Q100 and 2500 Vrms are not required |
| ISO7731FDWR | Capacitive isolation; 100 Mbps; 5000 Vrms; AEC-Q100 Grade 1; 3.75 mm creepage | Higher isolation rating but smaller SOIC-16 package (3.9 mm width); lower CMTI (100 kV/μs claimed, but test condition differs) | Selected when higher isolation voltage is critical and PCB space is constrained; requires layout review for creepage compliance |
Compared with SI8631BB-B-IS and ISO7731FDWR, ADUM1301WSRWZ-RL offers superior common-mode transient immunity (>25 kV/μs vs. 20/100 kV/μs under different test definitions), guaranteed 2500 Vrms UL rating with 8.3 mm creepage, and proven transformer-based reliability in high-noise automotive power systems.
Availability
ADUM1301WSRWZ-RL is available at Aetrix Electronics and suitable for battery management systems, automotive inverter controls, isolated SPI data converters, and RS-485 fieldbus nodes requiring stable component supply across extended temperature and regulatory-compliant production cycles.
Supply support for ADUM1301WSRWZ-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 precision instrumentation, industrial automation, and automotive electronics markets.
The ADuM1301 series belongs to Analog Devices' iCoupler® digital isolator product line, designed specifically for high-reliability, high-speed galvanic isolation in safety-critical automotive and industrial systems demanding AEC-Q100 qualification and reinforced insulation.
FAQ
What is the maximum operating temperature of the ADUM1301WSRWZ-RL?
The ADUM1301WSRWZ-RL is rated for continuous operation from −40°C to +125°C ambient temperature and is AEC-Q100 Grade 1 qualified. This specification is validated per the datasheet's Electrical Characteristics tables at 125°C, including propagation delay, pulse width distortion, and supply current limits - making it suitable for under-hood automotive applications where thermal stress is extreme.
Does the ADUM1301WSRWZ-RL support level translation between 3.3 V and 5 V domains?
Yes, the ADUM1301WSRWZ-RL supports true bidirectional level translation: VDD1 and VDD2 can operate independently within 2.7 V to 5.5 V, enabling 3.3 V MCU-side isolation of 5 V peripherals (or vice versa). Input thresholds adapt automatically (e.g., VIH = 1.6 V at 3 V supply, 2.0 V at 5 V), and output voltages swing rail-to-rail relative to their respective supply - confirmed in Tables 2 and 3 of the Rev. M datasheet.
How many isolation channels does the ADUM1301WSRWZ-RL provide, and what is their directionality?
The ADUM1301WSRWZ-RL provides three independent galvanically isolated channels. Unlike the ADUM1300 variant, the ADUM1301 has two channels (A/B) flowing from side 1 to side 2 and one channel (C) flowing from side 2 to side 1 - enabling asymmetric bidirectional communication essential for protocols like SPI with separate data-in/data-out lines. Pin functions are defined in the "Pin Configurations" section (page 24) of the datasheet.
What safety certifications does the ADUM1301WSRWZ-RL hold?
The ADUM1301WSRWZ-RL is certified to UL 1577 (2500 Vrms, 1 minute), DIN EN IEC 60747-17 (VDE 0884-17, VIORM = 560 Vpeak), IEC/EN/CSA 62368-1, EN 60950-1, IEC/CSA 60601-1, IEC/CSA 61010-1, and CQC GB4943.1. These approvals are explicitly listed in the "Regulatory Information" section (page 20) and verified via Analog Devices' certification reports for the W-grade automotive variants.
Is the ADUM1301WSRWZ-RL pin-compatible with other ADuM1301 variants?
Yes, the ADUM1301WSRWZ-RL shares identical pinout and footprint with all ADuM1301 variants (e.g., ADUM1301ARW, ADUM1301BRW, ADUM1301CRW) in the 16-lead SOIC wide-body package. Differences lie only in speed grade (CRW = 90 Mbps), temperature range, and automotive qualification - all mechanically and electrically interoperable at the board level per the "Ordering Guide" (page 31) and "Pin Configurations" (page 24).
ADUM1301WSRWZ-RL Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc.
- Series:
- -
- 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:
- 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-RL FAQ
1.How can I place an order for ADUM1301WSRWZ-RL through Aetrix?
Please submit a Request for Quotation (RFQ) for ADUM1301WSRWZ-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 ADUM1301WSRWZ-RL reliable?
The price and inventory of ADUM1301WSRWZ-RL are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ADUM1301WSRWZ-RL is usually 5 days.
3.What payment methods are accepted for ADUM1301WSRWZ-RL?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ADUM1301WSRWZ-RL transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for ADUM1301WSRWZ-RL?
ADUM1301WSRWZ-RL orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your ADUM1301WSRWZ-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 ADUM1301WSRWZ-RL?
For technical support, including ADUM1301WSRWZ-RL datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ADUM1301WSRWZ-RL requirements.
6.How does Aetrix verify that ADUM1301WSRWZ-RL is sourced from the original manufacturer or authorized distributors?
All ADUM1301WSRWZ-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 ADUM1301WSRWZ-RL meets industry standards.
7.What is the process for return or replacement of ADUM1301WSRWZ-RL?
All ADUM1301WSRWZ-RL units undergo pre-shipment inspection (PSI). If there is an issue with ADUM1301WSRWZ-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 ADUM1301WSRWZ-RL part is unused and in its original packaging.
Return procedure for ADUM1301WSRWZ-RL:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
ADUM1301WSRWZ-RL Tags
-
ISO1212DBQR
Texas Instruments
-
ISO6721BDR
Texas Instruments
-
SI8710AC-B-ISR
Skyworks Solutions Inc.
-
ISO7720FDR
Texas Instruments
-
ISO7721DR
Texas Instruments
-
ISO7721FDR
Texas Instruments
-
SI8710CC-B-ISR
Skyworks Solutions Inc.
-
ISO6741FQDWRQ1
Texas Instruments
-
ISO7721DWVR
Texas Instruments
-
ISO7762FDBQR
Texas Instruments
-
ISO7741DWR
Texas Instruments
-
ISO7741FDWR
Texas Instruments
Tech Hub
A practical engineering guide to 3.3V and 5V logic compatibility, input thresholds, resistor dividers, translator ICs, MOSFET level shifting, I2C pull-ups, timing limits and power-sequencing risks.
The 74HC595 uses push-pull logic outputs, while the TPIC6B595 uses 50 V open-drain DMOS sinks for higher-power loads. This guide compares timing, current limits, 3.3 V interfacing, load wiring, thermal…
The 74HC595 converts serial data into eight stable parallel outputs. This guide covers pin functions, shift and storage timing, OE and MR behavior, drive-current limits, cascading, voltage compatibilit…
A technical comparison of level-sensitive latches and edge-triggered flip-flops, covering timing windows, setup and hold limits, master–slave operation, time borrowing, race-through, HDL inference and…
A D latch stores one bit while Enable controls when data can pass. This reference covers gate-level operation, truth tables, transparency, setup and hold timing, LE versus OE, common ICs and practical …
An SR latch stores one bit through cross-coupled feedback. This engineering reference covers NOR and NAND implementations, truth tables, forbidden-state recovery, gated operation, switch debouncing, fa…
Latch circuits retain one bit through feedback. This technical reference covers SR and D latches, truth tables, transparency, timing limits, latch-versus-flip-flop behavior, applications and common log…
An engineering guide to LED driver operation, constant-current and constant-voltage outputs, linear and switching topologies, dimming, IC selection, calculations, replacement compatibility, and fault c…
Operational amplifier guide covering op amp basics, feedback, ideal vs real op amps, common configurations, buffer circuits, offset, bias current, gain-bandwidth, slew rate, rail-to-rail limits and sel…
Jumper cables guide covering safe connection order, red and black clamp placement, final ground connection, cable gauge, length, clamp quality, copper vs CCA cables, jump starter comparison and battery…
