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Analog Devices Inc. ADUM3400BRWZ-RL
- Part No.:
- ADUM3400BRWZ-RL
- Manufacturer:
- Analog Devices Inc.
- Category:
- Digital Isolators
- Package:
- 16-SOIC (0.295", 7.50mm Width)
- Datasheet:
-
ADUM3400BRWZ-RL.pdf
- Description:
- DGTL ISO 2500VRMS 4CH GP 16SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:1,127
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Product details
Overview
ADUM3400BRWZ-RL from Analog Devices is a quad-channel digital isolator using iCoupler® transformer-based technology, providing galvanic isolation between microcontroller peripherals and industrial I/O. It supports bidirectional communication at up to 10 Mbps, operates from 3.0 V to 5.5 V on both sides, delivers ≤3 ns pulse width distortion, and features output enable for power-sensitive systems. It is used in isolated SPI interfaces for PLC analog input modules.
For engineers reviewing the ADUM3400BRWZ-RL datasheet, ADUM3400BRWZ-RL pinout, ADUM3400BRWZ-RL application, or ADUM3400BRWZ-RL equivalent, this page provides verified specifications, SOIC-16W package details, ESD-enhanced system-level reliability per IEC 61000-4-x, and real-world design context for multichannel isolation in industrial fieldbus nodes.
Technical Context
The ADUM3400BRWZ-RL implements four independent unidirectional channels (all inputs on side A, all outputs on side B), with integrated air-core transformers enabling signal transmission across the isolation barrier without optocoupler degradation. Its architecture includes a patented refresh circuit ensuring DC correctness during idle periods and power transitions.
It supports mixed-voltage operation (3.3 V/5 V or 5 V/3.3 V), exhibits >25 kV/µs common-mode transient immunity, and maintains channel-to-channel matching of ≤3 ns (codirectional) and ≤6 ns (opposing-directional) at 10 Mbps - critical for synchronized data capture in isolated ADC interfaces.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Max Data Rate | 10 Mbps - guaranteed timing integrity (≤3 ns PWD) for RS-485 transceiver control and isolated SPI clock domains |
| Propagation Delay | 20–50 ns - enables sub-50 ns timing budgets in real-time motor control feedback loops |
| Pulse Width Distortion | ≤3 ns - preserves duty cycle fidelity for PWM-based isolated gate drivers |
| Supply Voltage Range | 3.0 V to 5.5 V per side - supports level translation between 3.3 V MCU and 5 V sensor interface ICs |
| Quiescent Current | ≤4.8 mA total (3.3 V side) - allows battery-backed isolated monitoring in low-power edge nodes |
| Common-Mode Immunity | >25 kV/µs - sustains reliable operation in high-noise variable-frequency drive environments |
| Isolation Rating | 2500 V rms (1 min), VIORM = 560 V peak - meets reinforced insulation requirements per IEC 62368-1 and IEC 61010-1 |
Pinout & Package
ADUM3400BRWZ-RL is housed in a 16-lead SOIC wide-body (7.5 mm body width), RoHS-compliant package with creepage/clearance ≥8.0 mm. Pinout follows standard ADuM340x BRW-grade configuration.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD1 | Primary-side supply | Power for input-side logic (A-side channels); accepts 3.0–5.5 V |
| GND1 | Primary-side ground | Reference for A-side inputs and internal transmitter circuitry |
| INA, INB, INC, IND | Input signals (side A) | CMOS-compatible digital inputs driving isolated channels 1–4 |
| VDD2 | Secondary-side supply | Power for output-side logic (B-side); independent 3.0–5.5 V domain |
| GND2 | Secondary-side ground | Reference for B-side outputs and receiver circuitry; galvanically isolated from GND1 |
| OUTA, OUTB, OUTC, OUTD | Output signals (side B) | CMOS outputs replicating A-side logic states with <50 ns delay |
| OE | Output enable | Active-low control: drives all B-side outputs to high-impedance when asserted |
Key Features
| Feature | Design Value |
|---|---|
| iCoupler® transformer isolation | Eliminates LED aging and CTR drift of optocouplers; enables stable 10+ year lifetime in continuous operation |
| Enhanced ESD robustness | System-level IEC 61000-4-2/4-4/4-5 compliance achieved via layout and circuit hardening - reduces board-level protection component count |
| Bidirectional capability via pairing | Two ADUM3400BRWZ-RL units can be back-to-back configured for full-duplex isolated UART, avoiding dedicated bidirectional isolators |
| Refresh circuit | Maintains correct DC output state during static input conditions or power-up - prevents spurious resets in isolated watchdog circuits |
| High-temp operation | Rated for 105°C ambient - suitable for enclosure-mounted isolation in motor drives without derating |
Applications
| Industrial PLC Analog Input Modules | SPI-Isolated Data Converter Interfaces |
|---|---|
Use Scenario: Isolating 16-bit SAR ADCs (e.g., AD7606) from host MCU in noisy factory-floor cabinets. IC Role / Device Role / Timing Role: ADUM3400BRWZ-RL carries SPI clock, CS, and serial data across isolation barrier while preserving setup/hold timing margins. Use Value: Enables 100 kSPS sampling with <3 ns jitter contribution, meeting ±0.5 LSB accuracy requirements under 4 kV EFT stress. |
Use Scenario: Connecting isolated temperature sensors (e.g., ADT7320) to ARM Cortex-M4 controllers in hazardous-area instrumentation. IC Role / Device Role / Timing Role: ADUM3400BRWZ-RL isolates I²C/SMBus clock and data lines with bidirectional support via dual-device configuration. Use Value: Maintains 400 kHz bus timing with <5 ns skew between SCL/SDA, preventing clock stretching failures during EMC testing. |
| RS-485 Transceiver Isolation | Isolated Industrial Fieldbus Nodes |
Use Scenario: Galvanic separation of MAX13487E RS-485 transceivers from controller in distributed I/O subsystems. IC Role / Device Role / Timing Role: ADUM3400BRWZ-RL isolates DE/RE control lines and RO receive output, enabling 250 kbps half-duplex operation. Use Value: Achieves <10 ns propagation delay skew between control and data paths, eliminating bus arbitration glitches during hot-plug events. |
Use Scenario: Building DIN-rail mounted Modbus RTU slave nodes with isolated power and signal paths. IC Role / Device Role / Timing Role: ADUM3400BRWZ-RL isolates UART TX/RX, RTS/CTS, and fault signaling between microcontroller and isolated RS-485 PHY. Use Value: Supports 115.2 kbps Modbus traffic with guaranteed 2 ns pulse width distortion - ensures CRC validation integrity after 1000+ meter cable runs. |
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 |
|---|---|---|---|
| SI8640BB-B-IS | Capacitive isolation; 100 Mbps max rate; 2.5 kV rms rating; no output enable pin | Lacks OE function and lower isolation voltage - unsuitable for safety-critical 2500 V rms systems | Select only if higher speed and lower cost outweigh missing OE and reduced safety margin |
| ISO6740QDWR | Capacitive isolation; 50 Mbps max; 5000 V rms rating; 3.3 V only on both sides | Requires external level shifters for 5 V interfaces; higher supply current at 10 Mbps (9.2 mA vs. 7.4 mA) | Prefer when reinforced 5 kV rms is mandatory and system uses uniform 3.3 V rails |
Compared with SI8640BB-B-IS and ISO6740QDWR, ADUM3400BRWZ-RL uniquely combines 2500 V rms isolation, output enable, mixed-voltage operation, and <3 ns pulse width distortion - making it optimal for cost-constrained industrial PLCs requiring precise timing and functional safety compliance.
Availability
ADUM3400BRWZ-RL is available at Aetrix Electronics and suitable for industrial automation, motor control, and energy metering applications requiring stable component supply, long-term lifecycle assurance, and traceable sourcing.
Supply support for ADUM3400BRWZ-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 industrial isolation applications demanding enhanced system-level ESD reliability, low power, and precise timing - extending iCoupler® technology into mainstream programmable logic controllers and sensor interfaces.
FAQ
What is the maximum guaranteed data rate for ADUM3400BRWZ-RL?
The ADUM3400BRWZ-RL is rated for a maximum guaranteed data rate of 10 Mbps, with pulse width distortion maintained at ≤3 ns under all operating conditions. This specification is validated per CL = 15 pF and CMOS signal levels, and applies to the BRW-grade variant explicitly identified in the ordering guide. Higher rates (e.g., 90 Mbps) apply only to CRW-grade variants like ADUM3400CRWZ.
Does ADUM3400BRWZ-RL support level translation between 3.3 V and 5 V domains?
Yes, ADUM3400BRWZ-RL supports true bidirectional level translation: VDD1 may operate from 3.0 V to 5.5 V independently of VDD2, which also accepts 3.0 V to 5.5 V. Input thresholds scale accordingly (VIH = 2.0 V at 5 V, 1.6 V at 3.3 V), and output voltages swing rail-to-rail within each domain - enabling direct interfacing between 3.3 V MCUs and 5 V peripheral ICs without external level shifters.
What safety certifications does ADUM3400BRWZ-RL hold?
ADUM3400BRWZ-RL is certified to UL 1577 (2500 V rms for 1 minute), DIN EN IEC 60747-17 (VDE 0884-17, VIORM = 560 V peak), IEC/CSA 62368-1, IEC/CSA 60601-1, and IEC/CSA 61010-1. These approvals confirm suitability for reinforced insulation in industrial, medical, and test equipment applications where creepage and clearance compliance is mandatory.
How does the output enable (OE) pin function in ADUM3400BRWZ-RL?
The OE pin on ADUM3400BRWZ-RL is an active-low control that places all four B-side outputs (OUTA–OUTD) into high-impedance state when asserted. Propagation delay from OE assertion to high-Z is ≤8 ns, and from deassertion to valid logic levels is also ≤8 ns. This allows dynamic bus sharing in multi-master isolated systems and reduces standby power in sleep-mode sequences.
Is ADUM3400BRWZ-RL pin-compatible with other ADuM340x variants?
Yes, ADUM3400BRWZ-RL shares identical pinout and package (16-lead SOIC wide) with all ADuM340x BRW and CRW variants, including ADUM3401BRWZ and ADUM3402BRWZ. Channel directionality differs (ADUM3400: A→B unidirectional; ADUM3401: A←B; ADUM3402: bidirectional per channel), but mechanical and PCB footprint compatibility is maintained across the BRW/CRW subfamilies.
ADUM3400BRWZ-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:
- 10Mbps
- Propagation Delay tpLH / tpHL (Max):
- 50ns, 50ns
- Pulse Width Distortion (Max):
- 3ns
- 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
ADUM3400BRWZ-RL FAQ
1.How can I place an order for ADUM3400BRWZ-RL through Aetrix?
Please submit a Request for Quotation (RFQ) for ADUM3400BRWZ-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 ADUM3400BRWZ-RL reliable?
The price and inventory of ADUM3400BRWZ-RL are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ADUM3400BRWZ-RL is usually 5 days.
3.What payment methods are accepted for ADUM3400BRWZ-RL?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ADUM3400BRWZ-RL transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for ADUM3400BRWZ-RL?
ADUM3400BRWZ-RL orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your ADUM3400BRWZ-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 ADUM3400BRWZ-RL?
For technical support, including ADUM3400BRWZ-RL datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ADUM3400BRWZ-RL requirements.
6.How does Aetrix verify that ADUM3400BRWZ-RL is sourced from the original manufacturer or authorized distributors?
All ADUM3400BRWZ-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 ADUM3400BRWZ-RL meets industry standards.
7.What is the process for return or replacement of ADUM3400BRWZ-RL?
All ADUM3400BRWZ-RL units undergo pre-shipment inspection (PSI). If there is an issue with ADUM3400BRWZ-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 ADUM3400BRWZ-RL part is unused and in its original packaging.
Return procedure for ADUM3400BRWZ-RL:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
ADUM3400BRWZ-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
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