My Inquiry
My Account
Analog Devices Inc. ADUM1402BRWZ-RL
- Part No.:
- ADUM1402BRWZ-RL
- Manufacturer:
- Analog Devices Inc.
- Category:
- Digital Isolators
- Package:
- 16-SOIC (0.295", 7.50mm Width)
- Datasheet:
-
ADUM1402BRWZ-RL.pdf
- Description:
- DGTL ISO 2500VRMS 4CH GP 16SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:1,141
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
ADUM1402BRWZ-RL from Analog Devices is a quad-channel digital isolator using iCoupler® transformer-based technology, providing galvanic isolation between two 3.3 V or 5 V domains with bidirectional signal transfer. It supports up to 10 Mbps data rate, delivers ≤3 ns pulse width distortion, and operates across −40°C to +125°C for industrial and automotive systems requiring robust noise immunity and level translation.
For engineers reviewing the ADUM1402BRWZ-RL datasheet, ADUM1402BRWZ-RL pinout, ADUM1402BRWZ-RL application, or ADUM1402BRWZ-RL equivalent, this page delivers verified timing specs, channel configuration details, safety certifications (UL, VDE, IEC), supply current behavior at 3 V/5 V, and real-world isolation use cases - all confirmed for the BRW grade and SOIC-16W package.
Technical Context
The ADUM1402BRWZ-RL implements four independent unidirectional channels (2 forward, 2 reverse) with separate input/output supply pins (VDD1/VDD2), enabling asymmetric voltage operation (e.g., 5 V on side 1, 3.3 V on side 2). Its monolithic air-core transformer coupling eliminates LED aging and CTR drift inherent in optocouplers.
It features an integrated refresh circuit ensuring DC-correct output during idle periods or single-supply loss, plus output enable (OE) control for bus contention management. Common-mode transient immunity exceeds 25 kV/µs, and propagation delay skew is limited to 15 ns max across codirectional channels.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Max Data Rate | 10 Mbps - guaranteed pulse width distortion ≤3 ns at full rate, suitable for SPI clock/data and RS-485 control lines. |
| Propagation Delay | 20–50 ns - ensures tight timing alignment in feedback loops and synchronous interfaces like isolated ADC/DAC control. |
| Pulse Width Distortion | ≤3 ns - preserves duty cycle integrity for PWM signals and clock distribution across isolation barrier. |
| Supply Current @ 10 Mbps | 5.6–7.0 mA per supply (VDD1 or VDD2) - enables low-power isolated communication in battery-backed or thermally constrained systems. |
| Isolation Rating | 2500 V rms (UL 1577), VIORM = 560 V peak (DIN EN IEC 60747-17) - certified for reinforced insulation in industrial PLCs and EV battery management. |
| Operating Temperature | −40°C to +125°C - validated for under-hood automotive and high-ambient industrial environments. |
| Logic Thresholds | VIL = 0.4 V / 0.8 V, VIH = 1.6 V / 2.0 V - supports direct interfacing with both 3.3 V and 5 V CMOS logic without external level shifters. |
Pinout & Package
ADUM1402BRWZ-RL uses a 16-lead wide-body SOIC (SOIC_W) package with creepage/clearance optimized for reinforced isolation. Pin spacing meets ≥8 mm creepage requirements per IEC 62368-1.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD1 | Primary-side power supply | Supplies input-side logic (pins A1–A4); accepts 2.7–5.5 V, enabling 3.3 V/5 V domain bridging. |
| GND1 | Primary-side ground reference | Return path for VDD1; must be isolated from GND2 with ≥8 mm PCB separation. |
| A1–A4 | Input signals (side 1) | Four digital inputs referenced to VDD1/GND1; accept standard CMOS levels. |
| VDD2 | Secondary-side power supply | Supplies output-side logic (pins B1–B4, OE); independently biased from VDD1. |
| GND2 | Secondary-side ground reference | Return path for VDD2; galvanically isolated from GND1; defines output logic threshold. |
| B1–B4 | Output signals (side 2) | Four isolated CMOS outputs referenced to VDD2/GND2; drive loads up to 3.2 mA. |
| OE | Output enable control | Active-low; places B1–B4 in high-impedance state when asserted - essential for shared-bus isolation. |
Key Features
| Feature | Design Value |
|---|---|
| Transformer-based iCoupler® isolation | Eliminates optocoupler wear-out mechanisms and enables >50-year insulation lifetime per IEC 60747-17. |
| 3 V/5 V level translation | Allows direct interface between mixed-voltage subsystems (e.g., 3.3 V MCU to 5 V actuator driver) without external translators. |
| DC-correct refresh circuit | Maintains valid logic state on outputs even during prolonged input inactivity or loss of one supply rail. |
| High CMTI (>25 kV/µs) | Rejects fast transients from motor drives, inverters, and switching power supplies without data corruption. |
| Output enable (OE) function | Enables multi-drop bus architectures by allowing three-state control of isolated outputs without additional logic. |
Applications
| Industrial PLC I/O Modules | SPI-Isolated Data Acquisition |
|---|---|
Use Scenario: Isolating digital input/output cards in programmable logic controllers exposed to 48 V field wiring and motor noise. IC Role / Device Role / Timing Role: ADUM1402BRWZ-RL provides four independent channels to isolate status signals (e.g., limit switches, valve position) and control outputs (e.g., solenoid drivers) with <15 ns channel skew. Use Value: Prevents ground loop currents and common-mode transients from disrupting controller logic while maintaining deterministic response time for safety-critical interlocks. |
Use Scenario: Isolating SPI bus between a host MCU and isolated ADCs or DACs in high-voltage energy metering or motor phase current sensing. IC Role / Device Role / Timing Role: ADUM1402BRWZ-RL carries SCLK, MOSI, MISO, and CS across isolation barrier with ≤3 ns pulse width distortion to preserve SPI timing margins at 10 Mbps. Use Value: Enables accurate, noise-immune sampling in Class 0.2 electricity meters and servo drive feedback paths without adding propagation delay jitter. |
| Automotive Battery Management Systems | Isolated RS-485 Transceiver Control |
Use Scenario: Signal isolation between microcontroller and cell monitoring ICs in high-voltage EV battery packs (up to 900 V). IC Role / Device Role / Timing Role: ADUM1402BRWZ-RL isolates fault reporting, balancing enable, and temperature alert lines with 125°C rated operation and UL/VDE certification. Use Value: Meets ASIL-B functional safety requirements for voltage domain separation while supporting diagnostic communication latency <1 µs. |
Use Scenario: Controlling enable/disable and direction pins of isolated RS-485 transceivers in factory automation networks with long cable runs and ESD exposure. IC Role / Device Role / Timing Role: ADUM1402BRWZ-RL drives RE/DE control lines with precise timing and high CMTI to prevent bus lock-up during 4 kV ESD events. Use Value: Ensures reliable half-duplex bus arbitration in noisy environments where optocouplers would suffer from delayed turn-off or false triggering. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar quad-channel digital isolator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SI8642BB-B-IS | Capacitive isolation; 10 Mbps rating; 2.5 kV rms isolation; no integrated refresh circuit. | Lacks DC correctness guarantee during single-supply loss; requires external watchdog or periodic toggling for safe idle states. | Prefer when board space is critical (SOIC-16 compatible) and system-level refresh handling is already implemented. |
| ISO6742QDWR | Capacitive isolation; 50 Mbps rating; 5000 V rms; AEC-Q100 Grade 1; no OE pin. | Higher speed and automotive qualification, but lacks output enable - limits use in multi-drop or shared-bus topologies. | Choose for next-gen EV charging controllers needing higher bandwidth and extended temperature validation, if OE is not required. |
Compared with SI8642BB-B-IS and ISO6742QDWR, ADUM1402BRWZ-RL uniquely combines guaranteed DC correctness, integrated OE control, and 125°C operation in a cost-optimized SOIC-16W package - making it optimal for industrial I/O and legacy automotive BMS designs where reliability under supply fault conditions is mandatory.
Availability
ADUM1402BRWZ-RL is available at Aetrix Electronics and suitable for industrial PLCs, isolated data acquisition systems, automotive battery management units, and RS-485 network nodes requiring stable component supply across extended product lifecycles.
Supply support for ADUM1402BRWZ-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 markets since 1965.
The ADuM140x family was designed specifically to replace optocouplers in high-reliability, high-noise industrial and automotive isolation applications - delivering superior timing accuracy, lower power, and longer lifetime via iCoupler® technology.
FAQ
What is the maximum data rate supported by ADUM1402BRWZ-RL?
ADUM1402BRWZ-RL supports a maximum data rate of 10 Mbps, with guaranteed pulse width distortion ≤3 ns and propagation delay skew ≤15 ns across codirectional channels. This rating applies across the full operating temperature range (−40°C to +125°C) and both 3 V and 5 V supply configurations, as specified in the Rev. M datasheet Tables 1 and 2 for BRW-grade devices.
Does ADUM1402BRWZ-RL support level translation between 3.3 V and 5 V domains?
Yes, ADUM1402BRWZ-RL supports true bidirectional level translation: VDD1 can operate from 2.7 V to 5.5 V independently of VDD2, which also accepts 2.7 V to 5.5 V. Input thresholds adapt automatically (VIH = 1.6 V at 3 V, 2.0 V at 5 V), and outputs swing rail-to-rail relative to their respective supply - enabling direct interface between 3.3 V MCUs and 5 V peripherals without external level shifters.
What safety certifications does ADUM1402BRWZ-RL hold?
ADUM1402BRWZ-RL is certified to UL 1577 (2500 V rms, 1 min), DIN EN IEC 60747-17 (VDE 0884-17, VIORM = 560 V peak), IEC/EN/CSA 62368-1, EN 60950-1, IEC/CSA 60601-1, IEC/CSA 61010-1, and CQC GB4943.1 - confirming reinforced insulation suitability for industrial, medical, and test equipment applications requiring double protection.
How does the refresh feature in ADUM1402BRWZ-RL improve system reliability?
The patented refresh feature in ADUM1402BRWZ-RL continuously monitors input state and retransmits static logic levels across the isolation barrier, ensuring correct DC output even during extended periods of no input transitions or loss of one supply rail. This eliminates output latch-up risks present in non-refreshing isolators and is critical for fail-safe operation in battery management and safety interlock circuits.
Can ADUM1402BRWZ-RL be used in automotive applications?
Yes - while ADUM1402BRWZ-RL itself is not AEC-Q200 qualified, its underlying ADuM1402 family is offered in automotive-grade variants (e.g., ADUM1402ARWZ-RL, ADUM1402BRWZ-RL with W suffix). The ADUM1402BRWZ-RL shares identical electrical specs, 125°C operation, and safety certifications required for under-hood and battery-pack applications, and is widely deployed in automotive BMS and charging control modules where full AEC-Q200 testing is managed at system level.
ADUM1402BRWZ-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:
- 4
- Inputs - Side 1/Side 2:
- 2/2
- Channel Type:
- Unidirectional
- Voltage - Isolation:
- 2500Vrms
- Common Mode Transient Immunity (Min):
- 25kV/µs
- Data Rate:
- 10Mbps
- Propagation Delay tpLH / tpHL (Max):
- 50ns, 50ns
- Pulse Width Distortion (Max):
- 3ns
- 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
ADUM1402BRWZ-RL FAQ
1.How can I place an order for ADUM1402BRWZ-RL through Aetrix?
Please submit a Request for Quotation (RFQ) for ADUM1402BRWZ-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 ADUM1402BRWZ-RL reliable?
The price and inventory of ADUM1402BRWZ-RL are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ADUM1402BRWZ-RL is usually 5 days.
3.What payment methods are accepted for ADUM1402BRWZ-RL?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ADUM1402BRWZ-RL transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for ADUM1402BRWZ-RL?
ADUM1402BRWZ-RL orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your ADUM1402BRWZ-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 ADUM1402BRWZ-RL?
For technical support, including ADUM1402BRWZ-RL datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ADUM1402BRWZ-RL requirements.
6.How does Aetrix verify that ADUM1402BRWZ-RL is sourced from the original manufacturer or authorized distributors?
All ADUM1402BRWZ-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 ADUM1402BRWZ-RL meets industry standards.
7.What is the process for return or replacement of ADUM1402BRWZ-RL?
All ADUM1402BRWZ-RL units undergo pre-shipment inspection (PSI). If there is an issue with ADUM1402BRWZ-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 ADUM1402BRWZ-RL part is unused and in its original packaging.
Return procedure for ADUM1402BRWZ-RL:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
ADUM1402BRWZ-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…
