My Inquiry
My Account
Analog Devices Inc. ADUM3400CRWZ
- Part No.:
- ADUM3400CRWZ
- Manufacturer:
- Analog Devices Inc.
- Category:
- Digital Isolators
- Package:
- 16-SOIC (0.295", 7.50mm Width)
- Datasheet:
-
ADUM3400CRWZ.pdf
- Description:
- DGTL ISO 2500VRMS 4CH GP 16SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:3,282
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
ADUM3400CRWZ from Analog Devices is a quad-channel digital isolator using iCoupler® transformer-based technology, providing galvanic isolation for bidirectional signal transmission across a 2500 Vrms reinforced barrier. It supports up to 90 Mbps NRZ data rate, operates from 3.0 V to 5.5 V on both sides, and delivers 2 ns max pulse width distortion and 10 ns max channel-to-channel matching in CRW-grade configuration-enabling high-fidelity SPI and RS-485 isolation in industrial PLCs and motor drives.
For engineers reviewing the ADUM3400CRWZ datasheet, ADUM3400CRWZ pinout, ADUM3400CRWZ application, or ADUM3400CRWZ equivalent, this device is selected for high-speed, low-jitter, system-level ESD-robust isolation where precise timing, 3.3/5 V level translation, and >25 kV/µs common-mode transient immunity are required in compact SOIC-16W packaging.
Technical Context
The ADUM3400CRWZ implements four independent unidirectional channels (A→B direction only), with all inputs on side 1 (VDD1) and all outputs on side 2 (VDD2). Its monolithic air-core transformer coupling eliminates optocoupler drift and lifetime concerns while enabling stable DC-correct operation via patented refresh circuitry active during idle or power transitions.
It features output enable (OE) control per side, supports mixed-voltage operation (3.3 V/5 V or 5 V/3.3 V), and meets DIN EN IEC 60747-17 (VDE 0884-17) with VIORM = 560 Vpeak. The CRW grade guarantees 90 Mbps performance with 27 ns typical propagation delay and <2 ns pulse width distortion at 25°C.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Isolation Rating | 2500 Vrms for 1 minute (UL 1577); reinforced insulation per IEC/CSA 62368-1, IEC/CSA 60601-1 |
| Max Data Rate | 90 Mbps NRZ - enables high-throughput SPI, CAN FD, and industrial Ethernet PHY interface isolation |
| Pulse Width Distortion | ≤2 ns - preserves signal integrity in clock-forwarding and time-critical serial protocols |
| Channel-to-Channel Matching | ≤5 ns (codirectional), ≤5 ns (opposing-directional) - ensures deterministic skew in multi-line buses |
| Common-Mode Transient Immunity | >25 kV/µs - maintains logic state during fast transients in motor drive and power supply noise environments |
| Supply Voltage Range | 3.0 V to 5.5 V on both sides - supports voltage translation and interoperability with mixed-voltage systems |
| Operating Temperature | −40°C to +105°C - qualified for extended industrial and automotive under-hood applications |
Pinout & Package
ADUM3400CRWZ is housed in a 16-lead SOIC wide-body (SOIC_W) RoHS-compliant package, 10.3 mm × 10.3 mm × 2.4 mm, with creepage/clearance ≥8.3 mm.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD1 | Primary-side power supply | Supplies input-side logic (pins A1–A4); accepts 3.0–5.5 V; decoupling required |
| GND1 | Primary-side ground reference | Return path for VDD1; must be isolated from GND2 by PCB layout |
| A1–A4 | Input channels 1–4 | CMOS-compatible digital inputs referenced to VDD1/GND1; no internal pull-ups |
| VDD2 | Secondary-side power supply | Supplies output-side logic (pins B1–B4); accepts 3.0–5.5 V; independent of VDD1 |
| GND2 | Secondary-side ground reference | Return path for VDD2; galvanically isolated from GND1 |
| B1–B4 | Output channels 1–4 | CMOS-compatible digital outputs referenced to VDD2/GND2; drive strength up to 3.2 mA |
| OE1 | Primary-side output enable | Active-low control: pulls all Bx outputs to high-impedance when OE1 = low |
| OE2 | Secondary-side output enable | Active-low control: pulls all Ax inputs to high-impedance when OE2 = low |
Key Features
| Feature | Design Value |
|---|---|
| iCoupler® transformer isolation | Replaces optocouplers with stable, temperature-invariant, long-lifetime signal transfer without CTR degradation |
| Enhanced system-level ESD reliability | Validated per IEC 61000-4-x standards - reduces board-level protection component count in harsh ESD environments |
| DC-correct refresh architecture | Guarantees correct output state during static input conditions and power-up/power-down sequences |
| Low dynamic power consumption | 0.10 mA/Mbps (input) and 0.03 mA/Mbps (output) at 3.3 V - enables energy-efficient high-speed isolation |
| Mixed-voltage level translation | Supports 3.3 V ↔ 5 V signaling across isolation barrier without external level shifters |
Applications
| Industrial PLC Backplane Isolation | SPI Interface Isolation for Precision ADCs |
|---|---|
Use Scenario: Isolating digital control signals between CPU module and I/O expansion slots in modular PLC chassis exposed to 2 kV surge and 15 kV ESD events. IC Role / Device Role / Timing Role: ADUM3400CRWZ provides four independent, high-CMTI, low-skew channels to isolate address/data/control lines between microcontroller and isolated I/O ASICs. Use Value: Enables 90 Mbps backplane communication with <2 ns pulse distortion, eliminating timing re-synchronization and reducing FPGA resource usage. |
Use Scenario: Isolating SPI clock, MOSI, MISO, and CS lines between an MCU and a 24-bit precision ADC in a high-noise motor control feedback loop. IC Role / Device Role / Timing Role: ADUM3400CRWZ acts as a timing-transparent SPI isolator with matched propagation delays across all four channels to preserve full-duplex timing margins. Use Value: Maintains 100% SPI frame integrity at 20 MHz SCLK with no added jitter or inter-channel skew-critical for sub-LSB accuracy in closed-loop current sensing. |
| RS-485 Transceiver Isolation | Isolated CAN FD Node Interface |
Use Scenario: Galvanically isolating half-duplex RS-485 transceivers in factory automation networks subject to ground potential differences exceeding 1 kV. IC Role / Device Role / Timing Role: ADUM3400CRWZ isolates DE/RE control and differential data lines (A/B) with bidirectional capability via paired channel routing. Use Value: Supports 20 Mbps RS-485 data rates with 25 kV/µs CMTI - prevents bus lockup during lightning-induced transients on long cable runs. |
Use Scenario: Isolating CAN FD controller and transceiver in battery management systems (BMS) requiring functional safety compliance and fault containment. IC Role / Device Role / Timing Role: ADUM3400CRWZ isolates TXD, RXD, STB, and VIO lines between MCU and CAN FD transceiver, enabling 5 Mbps arbitration and 2 Mbps data phase isolation. Use Value: Delivers <5 ns channel skew and 90 Mbps headroom - ensures bit-level timing alignment across all CAN FD signal paths for ISO 11898-1 conformance. |
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 |
|---|---|---|---|
| SI8640ED-B-IS | Capacitive isolation; 100 Mbps max; 2.5 kVrms rating; no integrated refresh; higher CMTI (35 kV/µs) | Lacks reinforced insulation certification (IEC 60601-1, IEC 60747-17); not rated for medical or safety-critical industrial use | Select when highest CMTI and lowest propagation delay (10 ns typ.) are prioritized over regulatory compliance scope. |
| ISO6740QDWR | Capacitive isolation; 50 Mbps max; 5000 Vrms rating; 3.3 V only; no level translation; lower power (1.2 mA/ch @ 1 Mbps) | Requires external level shifters for 5 V interfacing; lacks mixed-voltage operation and system-level ESD enhancements | Select for cost-sensitive, lower-speed, single-supply 3.3 V systems where UL/VDE certifications are less critical. |
Compared with SI8640ED-B-IS and ISO6740QDWR, ADUM3400CRWZ uniquely combines 90 Mbps speed, 2500 Vrms reinforced isolation with full regulatory coverage (IEC 60601-1, VDE 0884-17), and native 3.3/5 V level translation-making it the only option qualified for high-speed, safety-certified industrial and medical isolation without external support components.
Availability
ADUM3400CRWZ is available at Aetrix Electronics and suitable for industrial PLCs, precision data acquisition systems, motor drive control interfaces, and isolated communication nodes requiring stable component supply and long-term lifecycle assurance.
Supply support for ADUM3400CRWZ 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 ADuM3400 family belongs to Analog Devices' iCoupler® digital isolator product line, designed specifically for robust, high-speed, low-power galvanic isolation in safety-critical and noise-immune industrial systems.
FAQ
What is the maximum guaranteed data rate for ADUM3400CRWZ?
The ADUM3400CRWZ is rated for a maximum guaranteed data rate of 90 Mbps (NRZ) with pulse width distortion ≤2 ns. This specification is validated across the full operating temperature range (−40°C to +105°C) and applies to all four channels simultaneously under load conditions specified in the datasheet (CL = 15 pF, CMOS levels). The CRW grade designation confirms this performance tier.
Does ADUM3400CRWZ support bidirectional communication on each channel?
No, ADUM3400CRWZ implements four unidirectional channels: A1–A4 are inputs referenced to VDD1/GND1, and B1–B4 are corresponding outputs referenced to VDD2/GND2. Bidirectional functionality requires external routing (e.g., pairing two channels) or use of the ADUM3401/ADUM3402 variants, which offer different channel direction configurations.
Can ADUM3400CRWZ operate with 3.3 V on one side and 5 V on the other?
Yes, ADUM3400CRWZ supports mixed-supply operation: VDD1 = 3.3 V / VDD2 = 5 V or VDD1 = 5 V / VDD2 = 3.3 V. Input thresholds and output drive levels automatically adapt-VIH is 1.6 V (3.3 V side) or 2.0 V (5 V side), and VOH reaches (VDDx − 0.1 V), enabling seamless level translation without external components.
What safety certifications does ADUM3400CRWZ hold?
ADUM3400CRWZ is certified to UL 1577 (2500 Vrms/1 min), IEC/CSA 62368-1, IEC/CSA 60601-1 (medical), IEC/CSA 61010-1 (industrial), CQC GB 4943.1, and DIN EN IEC 60747-17 (VDE 0884-17) with VIORM = 560 Vpeak. These approvals confirm reinforced insulation suitability for safety-critical end equipment.
How does the refresh feature in ADUM3400CRWZ ensure DC correctness?
The ADUM3400CRWZ incorporates a patented internal refresh circuit that periodically samples and retransmits the last valid input state during static conditions or power transitions. This ensures outputs retain correct logic levels even with no input toggling-critical for maintaining safe states in control systems during startup, brownout, or watchdog timeout events.
ADUM3400CRWZ Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc.
- Series:
- iCoupler®
- 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:
- 4
- Inputs - Side 1/Side 2:
- 4/0
- 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:
- 3V ~ 5.5V
- Grade:
- -
- Qualification:
- -
- Operating Temperature:
- -40°C ~ 105°C
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 16-SOIC
ADUM3400CRWZ FAQ
1.How can I place an order for ADUM3400CRWZ through Aetrix?
Please submit a Request for Quotation (RFQ) for ADUM3400CRWZ 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 ADUM3400CRWZ reliable?
The price and inventory of ADUM3400CRWZ are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ADUM3400CRWZ is usually 5 days.
3.What payment methods are accepted for ADUM3400CRWZ?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ADUM3400CRWZ transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for ADUM3400CRWZ?
ADUM3400CRWZ orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your ADUM3400CRWZ 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 ADUM3400CRWZ?
For technical support, including ADUM3400CRWZ datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ADUM3400CRWZ requirements.
6.How does Aetrix verify that ADUM3400CRWZ is sourced from the original manufacturer or authorized distributors?
All ADUM3400CRWZ 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 ADUM3400CRWZ meets industry standards.
7.What is the process for return or replacement of ADUM3400CRWZ?
All ADUM3400CRWZ units undergo pre-shipment inspection (PSI). If there is an issue with ADUM3400CRWZ, 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 ADUM3400CRWZ part is unused and in its original packaging.
Return procedure for ADUM3400CRWZ:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
ADUM3400CRWZ 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…
