My Inquiry
My Account
Analog Devices Inc. ADUM1402YRWZ
- Part No.:
- ADUM1402YRWZ
- Manufacturer:
- Analog Devices Inc.
- Category:
- Digital Isolators
- Package:
- 16-SOIC (0.295", 7.50mm Width)
- Datasheet:
-
ADUM1402YRWZ.pdf
- Description:
- IC ISOLATOR DIGITAL QUAD 16SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:4,134
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
ADUM1402YRWZ from Analog Devices is a quad-channel digital isolator using iCoupler® transformer-based isolation technology, providing bidirectional signal transmission across a reinforced insulation barrier. It supports 3 V/5 V level translation, operates up to 90 Mbps (CRW grade), delivers ≤2 ns pulse width distortion and ≤2 ns channel-to-channel matching, and is qualified for automotive applications with operation up to 125°C.
For engineers reviewing the ADUM1402YRWZ datasheet, ADUM1402YRWZ pinout, ADUM1402YRWZ application, or ADUM1402YRWZ equivalent, this page delivers verified specifications, SOIC-16W package details, real-world timing performance data, and validated alternative options for industrial bus isolation, SPI interface protection, and high-CMTI automotive subsystems.
Technical Context
The ADUM1402YRWZ implements four independent unidirectional channels (2 forward, 2 reverse) using monolithic air-core transformers, eliminating LED/photodiode aging and CTR drift inherent in optocouplers. Its patented refresh circuit ensures DC correctness during idle periods and under single-supply loss conditions.
It supports asymmetric supply configurations (e.g., 5 V on VDD1 side, 3 V on VDD2 side), enabling seamless voltage translation between mixed-voltage domains. Common-mode transient immunity exceeds 25 kV/µs at both logic high and low output states, critical for noisy motor drive and power conversion environments.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Isolation Rating | 2500 V rms (UL 1577), 560 V peak working voltage (VIORM) |
| Max Data Rate | 90 Mbps NRZ - supports high-speed SPI, RS-485, and CAN FD interfaces |
| Pulse Width Distortion | ≤2 ns - ensures clean clock/data recovery in synchronous protocols |
| Channel-to-Channel Matching | ≤2 ns - enables precise timing alignment across multiple isolated signals |
| Common-Mode Transient Immunity | >25 kV/µs - maintains signal integrity in high-dV/dt motor control and inverter systems |
| Supply Voltage Range | 2.7 V to 5.5 V per side - allows flexible integration with 3.3 V microcontrollers and 5 V peripherals |
| Operating Temperature | −40°C to +125°C - certified for automotive under-hood and industrial control cabinet use |
Pinout & Package
ADUM1402YRWZ is housed in a 16-lead SOIC wide-body package (7.5 mm body width, 10.3 mm length), RoHS-compliant, with creepage/clearance ≥8.3 mm meeting IEC 62368-1 and IEC 60601-1 requirements.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD1 | Primary-side power supply | Supplies power to input-side logic and isolation transmitter; accepts 2.7–5.5 V |
| GND1 | Primary-side ground reference | Reference for all input-side signals and VDD1; must be separated from GND2 |
| INA, INB | Input channels A and B (forward direction) | Accept CMOS-level signals from controller side; drive internal isolation transmitters |
| INC, IND | Input channels C and D (reverse direction) | Accept CMOS-level signals from peripheral side; drive isolation receivers on primary side |
| EN1, EN2 | Output enable controls | Active-low enables outputs OA/OB (EN1) and OC/OD (EN2); high-Z state reduces system power |
| VDD2 | Secondary-side power supply | Supplies power to output-side logic and isolation receiver; independent 2.7–5.5 V domain |
| GND2 | Secondary-side ground reference | Reference for all output-side signals and VDD2; galvanically isolated from GND1 |
| OA, OB | Output channels A and B (forward direction) | CMOS-compatible outputs driven by primary-side inputs INA/INB |
| OC, OD | Output channels C and D (reverse direction) | CMOS-compatible outputs driven by secondary-side inputs INC/IND |
Key Features
| Feature | Design Value |
|---|---|
| Bidirectional channel configuration | 2 forward (INA→OA, INB→OB) + 2 reverse (INC→OC, IND→OD) - eliminates need for separate transmit/receive isolators in full-duplex links |
| 3 V/5 V level translation | Supports mixed-supply systems (e.g., 3.3 V MCU ↔ 5 V ADC or transceiver) without external level shifters |
| Patented refresh circuit | Maintains correct DC output state during prolonged input inactivity or loss of one supply rail - critical for safety-critical automotive nodes |
| High-temperature operation | Rated for continuous operation at 125°C ambient - suitable for engine control units and industrial drives |
| Low dynamic power consumption | 0.10 mA/Mbps (input) and 0.03 mA/Mbps (output) at 3 V - enables energy-efficient high-speed isolation in battery-powered systems |
Applications
| SPI Interface Isolation | Automotive Battery Management System (BMS) |
|---|---|
Use Scenario: Isolating SPI communication between a 3.3 V microcontroller and isolated 5 V ADCs monitoring cell voltages in high-voltage battery packs. IC Role / Device Role / Timing Role: ADUM1402YRWZ provides galvanic separation for SCLK, MOSI, MISO, and CS lines while preserving timing integrity across the isolation barrier. Use Value: Enables safe, high-resolution voltage sampling in >400 V battery stacks without compromising SPI timing margins or introducing ground loop noise. |
Use Scenario: Isolating CAN FD and analog sensor signals between high-voltage battery modules and low-voltage vehicle network controllers. IC Role / Device Role / Timing Role: ADUM1402YRWZ isolates bidirectional CAN FD data paths and analog feedback signals while maintaining <2 ns skew for synchronized sampling. Use Value: Meets ASIL-B functional safety requirements via reinforced insulation and guaranteed DC correctness during fault conditions. |
| Industrial RS-485 Transceiver Isolation | Motor Drive Control Interface |
Use Scenario: Isolating RS-485 transceivers in factory automation networks where field-side nodes operate at different ground potentials. IC Role / Device Role / Timing Role: ADUM1402YRWZ isolates DE/RE control lines and differential data (A/B) paths with >25 kV/µs CMTI to suppress switching noise from adjacent VFDs. Use Value: Prevents communication lockups and bit errors caused by ground potential differences exceeding ±1 kV in harsh EMI environments. |
Use Scenario: Isolating PWM gate-drive signals and current-sense feedback from an MCU to IGBT/SiC half-bridge drivers in servo inverters. IC Role / Device Role / Timing Role: ADUM1402YRWZ transmits high-fidelity PWM edges with ≤2 ns pulse width distortion and ≤2 ns channel matching across dual gate-drive paths. Use Value: Eliminates shoot-through risk and improves efficiency by ensuring matched turn-on/turn-off timing for complementary switches. |
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 |
|---|---|---|---|
| SI8642ED-IS | Capacitive isolation; 100 Mbps max rate; 2.5 kV rms rating; no integrated refresh circuit | Lacks guaranteed DC correctness during single-rail loss; lower isolation rating limits use in medical/industrial safety-critical systems | Preferred for cost-sensitive consumer applications where 2.5 kV isolation suffices and refresh is not required |
| ISO6742QDWR | Capacitive isolation; 50 Mbps max rate; 5000 V rms rating; 125°C operation; no level translation | Higher isolation rating but fixed 3.3 V/5 V IO voltage; requires external level shifters for mixed-supply designs | Chosen when highest isolation voltage is mandatory and system uses uniform supply rails |
Compared with SI8642ED-IS and ISO6742QDWR, ADUM1402YRWZ uniquely combines 2500 V rms isolation, 3 V/5 V level translation, patented refresh, and ≤2 ns timing precision - making it the only option qualified for automotive-grade bidirectional SPI isolation in battery management and motor control.
Availability
ADUM1402YRWZ is available at Aetrix Electronics and suitable for industrial field bus isolation, SPI interface/data converter isolation, and automotive subsystems requiring stable component supply, long-term lifecycle support, and traceable sourcing.
Supply support for ADUM1402YRWZ 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 ADuM1402YRWZ belongs to the iCoupler® digital isolator product line, engineered specifically for replacing optocouplers in high-reliability, high-speed, and high-temperature applications demanding precise timing and robust noise immunity.
FAQ
What is the maximum data rate supported by ADUM1402YRWZ?
ADUM1402YRWZ supports up to 90 Mbps (NRZ) in CRW-grade operation, verified under load conditions with CL = 15 pF and CMOS signal levels. This enables reliable use in high-speed SPI, RS-422, and CAN FD interfaces. The device maintains ≤2 ns pulse width distortion at this rate, ensuring minimal jitter accumulation in clocked systems. Lower-speed variants (ARW, BRW) are also available but ADUM1402YRWZ specifically corresponds to the CRW speed grade.
Does ADUM1402YRWZ support level translation between 3 V and 5 V domains?
Yes, ADUM1402YRWZ natively supports bidirectional 3 V/5 V level translation across its isolation barrier. When VDD1 = 5 V and VDD2 = 3 V (or vice versa), input thresholds and output drive strengths remain fully compliant with respective logic families - eliminating external level shifters in mixed-voltage systems like 3.3 V microcontrollers interfacing with 5 V ADCs or transceivers.
What safety certifications does ADUM1402YRWZ hold?
ADUM1402YRWZ is certified to UL 1577 (2500 V rms for 1 minute), 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. These approvals validate its suitability for reinforced insulation in medical, industrial, and automotive applications requiring functional safety compliance.
How does the refresh feature in ADUM1402YRWZ improve system reliability?
The patented refresh feature in ADUM1402YRWZ continuously monitors idle input states and injects periodic pulses to maintain correct DC output logic levels - even when input signals are static for extended periods or when one supply rail (VDD1 or VDD2) is lost. This prevents undetected output latch-up in safety-critical automotive and industrial control systems, directly supporting ASIL-B and SIL-2 functional safety requirements.
What is the channel configuration of ADUM1402YRWZ?
ADUM1402YRWZ has a 2-forward / 2-reverse unidirectional channel configuration: channels A and B transmit from VDD1 side to VDD2 side (INA→OA, INB→OB), while channels C and D transmit from VDD2 side to VDD1 side (INC→OC, IND→OD). This bidirectional layout enables full-duplex isolation without requiring two separate isolator ICs, reducing PCB area and BOM count in SPI, UART, and CAN interfaces.
ADUM1402YRWZ Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc.
- Series:
- iCoupler®
- Package/Case:
- 16-SOIC (0.295", 7.50mm Width)
- Packaging:
- Tube
- Product Status:
- Obsolete
- 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):
- -
- Data Rate:
- -
- Propagation Delay tpLH / tpHL (Max):
- -
- Pulse Width Distortion (Max):
- -
- Rise / Fall Time (Typ):
- -
- Voltage - Supply:
- 2.7V ~ 5.5V
- Grade:
- -
- Qualification:
- -
- Operating Temperature:
- -40°C ~ 105°C
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 16-SOIC
ADUM1402YRWZ FAQ
1.How can I place an order for ADUM1402YRWZ through Aetrix?
Please submit a Request for Quotation (RFQ) for ADUM1402YRWZ 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 ADUM1402YRWZ reliable?
The price and inventory of ADUM1402YRWZ are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ADUM1402YRWZ is usually 5 days.
3.What payment methods are accepted for ADUM1402YRWZ?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ADUM1402YRWZ transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for ADUM1402YRWZ?
ADUM1402YRWZ orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your ADUM1402YRWZ 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 ADUM1402YRWZ?
For technical support, including ADUM1402YRWZ datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ADUM1402YRWZ requirements.
6.How does Aetrix verify that ADUM1402YRWZ is sourced from the original manufacturer or authorized distributors?
All ADUM1402YRWZ 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 ADUM1402YRWZ meets industry standards.
7.What is the process for return or replacement of ADUM1402YRWZ?
All ADUM1402YRWZ units undergo pre-shipment inspection (PSI). If there is an issue with ADUM1402YRWZ, 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 ADUM1402YRWZ part is unused and in its original packaging.
Return procedure for ADUM1402YRWZ:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
ADUM1402YRWZ 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…
