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Analog Devices Inc. ADUM3400CRWZ-RL
- Part No.:
- ADUM3400CRWZ-RL
- Manufacturer:
- Analog Devices Inc.
- Category:
- Digital Isolators
- Package:
- 16-SOIC (0.295", 7.50mm Width)
- Datasheet:
-
ADUM3400CRWZ-RL.pdf
- Description:
- DGTL ISO 2500VRMS 4CH GP 16SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:4,948
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Product details
Overview
ADUM3400CRWZ-RL from Analog Devices is a quad-channel digital isolator based on iCoupler® transformer technology, providing galvanic isolation between microcontroller peripherals and industrial I/O or communication interfaces. It supports bidirectional data transfer at up to 90 Mbps (NRZ), operates from 3.0 V to 5.5 V on both sides, and delivers 2 ns maximum pulse width distortion and 2 ns channel-to-channel matching for precise timing in SPI, RS-485, and data converter isolation applications.
For engineers reviewing the ADUM3400CRWZ-RL datasheet, ADUM3400CRWZ-RL pinout, ADUM3400CRWZ-RL application, or ADUM3400CRWZ-RL equivalent, this page provides verified specifications, package mapping, functional pin definitions, real-world use cases, and validated alternative options - all confirmed against Rev. G datasheet and Analog Devices' official ordering guide.
Technical Context
The ADUM3400CRWZ-RL implements four independent unidirectional channels with inputs on side A (pins 1–4) and outputs on side B (pins 13–16), enabling isolated SPI master-slave signaling or dual-directional bus segmentation. Its air-core transformer isolation architecture eliminates optocoupler limitations like CTR drift and temperature-dependent latency.
It features output enable (OE) control on pin 10, supports mixed-voltage operation (3.3 V/5 V or 5 V/3.3 V across barrier), and includes patented refresh circuitry ensuring DC-correct output during idle or power-up states - critical for safety-critical and medical systems requiring guaranteed signal integrity.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Max Data Rate | 90 Mbps (NRZ) - enables high-speed SPI clocking and real-time sensor interface without protocol overhead |
| Pulse Width Distortion | ≤2 ns - preserves duty cycle fidelity for PWM, clock forwarding, and time-sensitive control signals |
| Channel-to-Channel Matching | ≤2 ns (codirectional) - ensures synchronized edge alignment across multiple isolated data lines |
| Common-Mode Transient Immunity | >25 kV/µs - maintains signal integrity in noisy motor drives and industrial PLC backplanes |
| Isolation Voltage (VISO) | 2500 V rms (1 min) - certified for reinforced insulation per UL 1577 and IEC/CSA 62368-1 |
| Supply Range | 3.0 V to 5.5 V on both sides - allows direct interfacing with 3.3 V logic and 5 V legacy systems |
| Operating Temperature | −40°C to +105°C - qualified for extended-temperature industrial and automotive under-hood environments |
Pinout & Package
ADUM3400CRWZ-RL is housed in a 16-lead SOIC wide-body (7.6 mm body width), RoHS-compliant package with creepage/clearance ≥8.3 mm, rated for 2500 V rms isolation. Pin numbering follows standard SOIC convention (pin 1 = notch-side top-left).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1–4 (A1–A4) | Primary-side input channels | Accept CMOS-level signals from MCU GPIO or peripheral outputs; referenced to VDD1 |
| 5, 6, 8, 9 (GND1) | Primary-side ground | Return path for VDD1 supply and input-side logic; must be separated from secondary-side ground |
| 7 (VDD1) | Primary-side supply | 3.0–5.5 V power for input-side logic and transformers; decoupling capacitor required |
| 10 (OE) | Output enable control | Active-low; places B-side outputs in high-impedance state when asserted - enables bus sharing |
| 11, 12, 14, 15 (GND2) | Secondary-side ground | Return path for VDD2 and isolated output drivers; galvanically isolated from GND1 |
| 13–16 (B1–B4) | Secondary-side output channels | CMOS-compatible outputs driving isolated peripherals; referenced to VDD2 |
| 16 (VDD2) | Secondary-side supply | 3.0–5.5 V power for output-side logic; supports level translation across isolation barrier |
Key Features
| Feature | Design Value |
|---|---|
| iCoupler® transformer isolation | Monolithic air-core transformers replace LEDs and photodiodes - no LED aging, no CTR degradation, stable over temperature and lifetime |
| Enhanced ESD reliability | System-level robustness per IEC 61000-4-x (ESD/burst/surge) - validated via board-level testing, not just component-level |
| Bidirectional voltage translation | 3.3 V ↔ 5 V level shifting across barrier without external components - simplifies mixed-voltage system design |
| DC-correct refresh logic | Guarantees output state retention during static input conditions or power sequencing - eliminates need for external watchdog timers |
| Low dynamic power | 0.10 mA/Mbps (input) and 0.03 mA/Mbps (output) at 3.3 V - reduces thermal load in dense PCB layouts |
Applications
| SPI Isolation Interface | Industrial RS-485 Transceiver Isolation |
|---|---|
|
Use Scenario: Isolating SPI bus between an ARM Cortex-M7 host MCU and isolated ADC/DAC or digital IO expanders in factory automation controllers. IC Role / Device Role / Timing Role: ADUM3400CRWZ-RL provides four independent unidirectional channels - two for MOSI/MISO and two for SCLK/CS - preserving full-duplex timing integrity. Use Value: 2 ns pulse width distortion and 2 ns channel matching prevent setup/hold violations at 50+ MHz SPI clocks, eliminating bit errors in high-resolution data acquisition. |
Use Scenario: Galvanically isolating RS-485 transceivers in distributed I/O modules connected to noisy motor drives or variable frequency drives. IC Role / Device Role / Timing Role: ADUM3400CRWZ-RL isolates TX/RX control lines and DE/RE enable signals between UART and transceiver, preventing ground loop noise coupling. Use Value: >25 kV/µs common-mode transient immunity prevents false triggering or latch-up during EFT bursts on field wiring, meeting IEC 61000-4-4 Level 4. |
| Medical Sensor Signal Conditioning | Programmable Logic Controller (PLC) Digital Input Module |
|
Use Scenario: Isolating analog front-end sensor signals (e.g., ECG, pressure) from patient-connected circuits to main processing unit in Class II medical devices. IC Role / Device Role / Timing Role: ADUM3400CRWZ-RL isolates serial configuration and status lines of isolated sigma-delta modulators or ADCs compliant with IEC/CSA 60601-1. Use Value: 2500 V rms isolation rating and reinforced insulation certification satisfy creepage/clearance requirements for patient-applied parts without additional barriers. |
Use Scenario: Providing isolated digital input conditioning for 24 V DC field sensors in modular PLC backplanes exposed to industrial surges and lightning-induced transients. IC Role / Device Role / Timing Role: ADUM3400CRWZ-RL isolates eight discrete input channels (using two devices) with output enable for shared bus readout in compact DIN-rail modules. Use Value: Output enable function allows multiplexed polling of multiple isolated inputs using a single microcontroller port, reducing GPIO count and PCB area. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar digital isolator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ADUM3400BRWZ-RL | BRW-grade: 10 Mbps max data rate, 3 ns PWD, 15 ns propagation skew - lower speed, higher timing margin | Suitable for legacy RS-232/RS-422 links or low-speed control buses where 90 Mbps is unnecessary | Select when cost sensitivity outweighs bandwidth needs and system ESD stress is moderate |
| SI8640ED-IS | Silicon Labs capacitive isolator; 100 Mbps, 2.5 ns PWD, but only 3750 V rms isolation and no VDE 0884-17 certification | Valid for general-purpose industrial use but not certified for medical (60601-1) or high-reliability safety systems | Choose for non-safety-critical consumer or telecom applications where footprint compatibility matters more than regulatory scope |
Compared with ADUM3400BRWZ-RL and SI8640ED-IS, ADUM3400CRWZ-RL uniquely combines 90 Mbps speed, 2 ns timing precision, 2500 V rms UL/VDE certification, and system-level IEC 61000-4-x robustness - making it the only option qualified for high-bandwidth, safety-certified, and EMI-hardened designs.
Availability
ADUM3400CRWZ-RL is available at Aetrix Electronics and suitable for industrial automation, medical instrumentation, and energy metering applications requiring stable component supply, long-term lifecycle support, and traceable sourcing.
Supply support for ADUM3400CRWZ-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 ADuM3400 family was designed specifically for cost-sensitive, high-reliability industrial isolation - delivering enhanced system-level ESD robustness and simplified layout versus optocouplers while maintaining full regulatory compliance.
FAQ
What is the maximum data rate supported by ADUM3400CRWZ-RL?
ADUM3400CRWZ-RL supports a maximum data rate of 90 Mbps in NRZ format, as specified in the Rev. G datasheet under CRW-grade switching characteristics. This performance is guaranteed with ≤2 ns pulse width distortion and ≤10 ns propagation delay skew at 25°C and CL = 15 pF. The device maintains this rate across its full operating temperature range (−40°C to +105°C) and supply range (3.0 V to 5.5 V on both sides).
Does ADUM3400CRWZ-RL support level translation between 3.3 V and 5 V domains?
Yes, ADUM3400CRWZ-RL natively supports bidirectional level translation: it operates with VDD1 = 3.3 V and VDD2 = 5 V, or vice versa. Input thresholds adapt accordingly (VIH = 1.6 V at 3.3 V side, 2.0 V at 5 V side), and output drive strength meets CMOS specifications on both sides - eliminating external level shifters in mixed-voltage systems.
What safety certifications does ADUM3400CRWZ-RL hold?
ADUM3400CRWZ-RL is certified to UL 1577 (2500 V rms, 1 minute), DIN EN IEC 60747-17 (VDE 0884-17), IEC/CSA 62368-1, IEC/CSA 60601-1 (medical), and IEC/CSA 61010-1. Its VIORM rating is 560 V peak, and it meets reinforced insulation requirements for all listed standards - confirmed in Table 5 and Section 12 of the Rev. G datasheet.
How does the output enable (OE) pin function on ADUM3400CRWZ-RL?
The OE pin (pin 10) is an active-low control that places all four B-side outputs (pins 13–16) into high-impedance state when asserted. Propagation delay from OE assertion to high-Z is ≤8 ns. This enables bus sharing in multi-drop configurations and reduces power consumption during idle periods - a key feature for low-power PLC or sensor hub designs using ADUM3400CRWZ-RL.
Is ADUM3400CRWZ-RL pin-compatible with other ADuM340x variants?
Yes, ADUM3400CRWZ-RL shares identical pinout, package (16-lead SOIC wide), and footprint with all ADuM3400/ADuM3401/ADuM3402 variants (ARW/BRW/CRW grades). Channel configuration differs - ADUM3400CRWZ-RL has all four channels unidirectional (A→B), whereas ADUM3401CRWZ-RL offers three A→B + one B→A, and ADUM3402CRWZ-RL provides two A→B + two B→A - but physical layout and soldering are fully interchangeable.
ADUM3400CRWZ-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:
- 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-RL FAQ
1.How can I place an order for ADUM3400CRWZ-RL through Aetrix?
Please submit a Request for Quotation (RFQ) for ADUM3400CRWZ-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 ADUM3400CRWZ-RL reliable?
The price and inventory of ADUM3400CRWZ-RL are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ADUM3400CRWZ-RL is usually 5 days.
3.What payment methods are accepted for ADUM3400CRWZ-RL?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ADUM3400CRWZ-RL transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for ADUM3400CRWZ-RL?
ADUM3400CRWZ-RL orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your ADUM3400CRWZ-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 ADUM3400CRWZ-RL?
For technical support, including ADUM3400CRWZ-RL datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ADUM3400CRWZ-RL requirements.
6.How does Aetrix verify that ADUM3400CRWZ-RL is sourced from the original manufacturer or authorized distributors?
All ADUM3400CRWZ-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 ADUM3400CRWZ-RL meets industry standards.
7.What is the process for return or replacement of ADUM3400CRWZ-RL?
All ADUM3400CRWZ-RL units undergo pre-shipment inspection (PSI). If there is an issue with ADUM3400CRWZ-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 ADUM3400CRWZ-RL part is unused and in its original packaging.
Return procedure for ADUM3400CRWZ-RL:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
ADUM3400CRWZ-RL Tags
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