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Analog Devices Inc. ADUM2401BRIZ
- Part No.:
- ADUM2401BRIZ
- Manufacturer:
- Analog Devices Inc.
- Category:
- Digital Isolators
- Package:
- 16-SOIC (0.295", 7.50mm Width)
- Datasheet:
-
ADUM2401BRIZ.pdf
- Description:
- DGTL ISO 5000VRMS 4CH GP 16SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:149
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Product details
Overview
ADUM2401BRIZ 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 10 Mbps with ≤3 ns pulse width distortion, and delivers high common-mode transient immunity (>25 kV/µs) for use in motor drive gate driver interfaces and isolated power supply feedback loops.
For engineers reviewing the ADUM2401BRIZ datasheet, ADUM2401BRIZ pinout, ADUM2401BRIZ application, or ADUM2401BRIZ equivalent, this device is selected for high-reliability industrial isolation where precise timing, low power at medium data rates, and regulatory-compliant creepage/clearance are required - especially in medical equipment and IEC 62368-1/60601-1 certified systems.
Technical Context
The ADUM2401BRIZ implements four independent unidirectional channels (2 forward, 2 reverse), enabling asymmetric communication across the isolation barrier without external direction control logic. Its monolithic air-core transformer coupling eliminates LED aging and CTR drift, supporting stable operation from −40°C to +105°C with guaranteed dc correctness via patented refresh circuitry during idle or power-transition states.
It features output enable functionality per side (EN1/EN2 pins), allowing dynamic channel shutdown to reduce system-level standby current. The device operates with asymmetric supply configurations (e.g., 5 V primary / 3 V secondary), maintaining full timing specifications and logic thresholds across mixed-voltage domains.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Max Data Rate | 10 Mbps - guarantees ≤3 ns pulse width distortion for clean NRZ signal integrity in motor control PWM and SPI isolation. |
| Pulse Width Distortion | ≤3 ns - ensures minimal duty cycle error critical for timing-sensitive feedback paths in isolated DC-DC converters. |
| Channel-to-Channel Matching | ≤3 ns codirectional, ≤6 ns opposing - enables synchronized sampling of multi-sensor inputs in industrial PLC I/O modules. |
| Common-Mode Transient Immunity | >25 kV/µs - sustains reliable operation during fast-switching events in 600 V+ motor inverters and HV battery monitoring. |
| Supply Voltage Range | 2.7 V to 5.5 V per side - supports direct interfacing with both 3.3 V microcontrollers and 5 V legacy peripherals without level-shifter ICs. |
| Isolation Rating | 5000 V rms (1 min), VIORM = 645 V peak - meets reinforced insulation requirements for Class I medical devices and industrial safety standards. |
| Operating Temperature | −40°C to +105°C - qualified for under-hood automotive subsystems and enclosed industrial drives without derating. |
Pinout & Package
The ADUM2401BRIZ is housed in a 16-lead SOIC wide-body package (RI-16) with enhanced creepage (≥8.0 mm) and clearance (≥8.3 mm), certified to DIN EN IEC 60747-17 (VDE 0884-17) for reinforced insulation.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD1 | Primary-side power supply | Accepts 2.7–5.5 V; powers input-side logic and transformers; decoupling required within 10 mm. |
| GND1 | Primary-side ground reference | Must be separated from GND2 by ≥8.3 mm; forms one side of reinforced isolation barrier. |
| INA, INB | Input signals (primary side) | CMOS-compatible; VIH = 2.0 V (5 V mode) or 1.6 V (3 V mode); drives internal transformer primary. |
| ENA | Primary-side output enable | Active-low; disables outputs A/B when pulled low; reduces quiescent current to <1 µA per channel. |
| VDD2 | Secondary-side power supply | Independent 2.7–5.5 V rail; enables voltage translation; must be decoupled locally. |
| GND2 | Secondary-side ground reference | Galvanically isolated from GND1; defines output-side logic levels and return path. |
| OUTA, OUTB | Output signals (secondary side) | CMOS outputs; VOH ≥ VDD2 − 0.4 V @ 3.2 mA; supports direct connection to MCU GPIO or ADC drivers. |
| ENB | Secondary-side output enable | Active-low; independently controls outputs C/D; allows partial system shutdown without affecting primary logic. |
| INC, IND | Input signals (secondary side) | Bidirectional capability: accept signals from isolated side back to primary; VIH/VIL scale with VDD1. |
| OUTC, OUTD | Output signals (primary side) | Drive primary-side loads (e.g., MCU interrupts or status flags); referenced to GND1. |
Key Features
| Feature | Design Value |
|---|---|
| iCoupler® transformer isolation | Eliminates optocoupler CTR degradation and lifetime uncertainty; enables >50-year insulation lifetime per IEC 60747-17. |
| 3 V/5 V level translation | Allows direct interface between 3.3 V microcontrollers and 5 V fieldbus transceivers without external level shifters. |
| Patented dc-correct refresh | Maintains output state during static input conditions or power-up/power-down, preventing spurious resets in safety-critical systems. |
| Output enable per side | Reduces total system standby current by disabling unused channels - critical for battery-backed industrial sensors. |
| High CMTI (>25 kV/µs) | Rejects fast dv/dt noise from SiC/GaN switch nodes, ensuring robust UART/SPI communication in high-frequency inverters. |
Applications
| Motor Drive Feedback Isolation | Medical Patient Monitoring Interface |
|---|---|
Use Scenario: Isolating current-sense amplifier outputs and PWM gate signals in 3-phase inverter stages. IC Role / Device Role / Timing Role: Provides bidirectional signal transfer for fault reporting and gate drive enable/disable with <3 ns timing skew. Use Value: Enables safe, compact inverter designs meeting IEC 61800-5-2 functional safety requirements without optocoupler aging concerns. | Use Scenario: Galvanically isolating ECG/EEG analog front-end data lines from USB host controllers in bedside monitors. IC Role / Device Role / Timing Role: Transmits digitized sensor data across reinforced barrier while preserving sub-microsecond timing alignment for multi-lead synchronization. Use Value: Meets IEC 60601-1 4th edition creepage/clearance and leakage current limits without adding discrete isolation components. |
| Industrial PLC Digital I/O Module | Isolated DC-DC Converter Feedback |
Use Scenario: Conditioning and isolating 24 V digital inputs/outputs in modular automation controllers. IC Role / Device Role / Timing Role: Converts field-side logic levels to controller-side 3.3 V signals with channel-to-channel matching <6 ns for synchronized I/O scanning. Use Value: Reduces BOM count by replacing four discrete optocouplers and associated pull-up resistors with single-IC solution. | Use Scenario: Transmitting error amplifier output from secondary-side TL431 to primary-side PWM controller in flyback converters. IC Role / Device Role / Timing Role: Delivers stable, low-distortion analog-equivalent signal across isolation barrier using PWM-encoded feedback. Use Value: Achieves <±1% output regulation over line/load/temperature with no optocoupler CTR drift compensation needed. |
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 |
|---|---|---|---|
| SI8641BB-B-IS | Capacitive isolation; 10 Mbps max; 2.5 kV rms rating; no integrated refresh circuit. | Lacks reinforced insulation rating (VIORM = 500 V peak vs. 645 V); not certified to IEC 60601-1. | Prefer ADUM2401BRIZ for medical or high-voltage industrial use; SI8641BB-B-IS suits cost-sensitive consumer-grade isolation. |
| ISO6741-Q1 | Capacitive isolation; AEC-Q100 qualified; 50 Mbps max; 5000 V rms rating; different pinout (SOIC-16 but non-compatible). | Automotive-qualified but lacks 3 V/5 V translation support; requires external level shifters for mixed-voltage systems. | Select ADUM2401BRIZ when voltage translation and medical/industrial certifications are mandatory; ISO6741-Q1 fits automotive body electronics only. |
Compared with SI8641BB-B-IS and ISO6741-Q1, the ADUM2401BRIZ uniquely combines reinforced 5000 V rms isolation, integrated 3 V/5 V translation, and patented dc-correct refresh - making it the only option qualified for Class I medical equipment and high-CMTI industrial motor drives without design compromises.
Availability
ADUM2401BRIZ is available at Aetrix Electronics and suitable for motor drive feedback isolation, medical patient monitoring interfaces, industrial PLC digital I/O modules, and isolated DC-DC converter feedback requiring stable component supply across extended product lifecycles.
Supply support for ADUM2401BRIZ 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 is a global leader in high-performance analog, mixed-signal, and digital signal processing semiconductors, serving precision instrumentation, industrial automation, and healthcare markets.
The ADuM240x family was designed specifically for high-reliability galvanic isolation in safety-critical systems, emphasizing timing accuracy, regulatory compliance, and long-term stability over optocoupler alternatives.
FAQ
What is the maximum data rate supported by ADUM2401BRIZ?
The ADUM2401BRIZ supports a maximum data rate of 10 Mbps while guaranteeing ≤3 ns pulse width distortion. This specification is validated under load conditions (CL = 15 pF, CMOS signal levels) and applies across its full operating temperature range (−40°C to +105°C). Higher-speed variants like ADUM2401CRIZ support up to 90 Mbps, but ADUM2401BRIZ is optimized for robustness at medium-speed industrial interfaces.
Does ADUM2401BRIZ support mixed-voltage operation between primary and secondary sides?
Yes, ADUM2401BRIZ supports true mixed-voltage operation: VDD1 can be 5 V while VDD2 is 3.3 V (or vice versa), with fully specified logic thresholds and timing performance. In 5 V/3 V mode, VIH is 2.0 V on the 5 V side and 1.6 V on the 3 V side, enabling seamless level translation without external components - a key feature confirmed in Table 3 of the Rev. H datasheet.
What safety certifications apply to ADUM2401BRIZ?
ADUM2401BRIZ (RI-16 package) is certified to UL 1577 (5000 V rms, 1 minute), IEC/EN/CSA 62368-1, IEC/CSA 60601-1, IEC/CSA 61010-1, CQC GB 4943.1, and DIN EN IEC 60747-17 (VDE 0884-17) with VIORM = 645 V peak. These approvals validate its use in Class I medical devices and industrial equipment requiring reinforced insulation.
How does the refresh feature in ADUM2401BRIZ ensure dc correctness?
The ADUM2401BRIZ incorporates a patented refresh circuit that periodically samples and retransmits the last valid input state during static conditions or power transitions. This prevents output drift or metastability when inputs remain unchanged for extended periods - a critical capability for safety interlocks and isolated watchdog circuits where dc accuracy must be maintained without relying on external clock sources.
Can ADUM2401BRIZ replace optocouplers directly in existing designs?
ADUM2401BRIZ provides pin-compatible replacement for many quad optocoupler solutions (e.g., PS2561L-4) in SOIC-16 footprints, but requires attention to enable pin usage (ENA/ENB) and decoupling layout. Unlike optocouplers, it draws significantly less current (e.g., 1.8 mA total at 2 Mbps vs. >10 mA for equivalent optos) and eliminates CTR variation - however, PCB layout must maintain ≥8.3 mm creepage between GND1/GND2 per IEC 60747-17.
ADUM2401BRIZ 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:
- 3/1
- Channel Type:
- Unidirectional
- Voltage - Isolation:
- 5000Vrms
- 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-IC
ADUM2401BRIZ FAQ
1.How can I place an order for ADUM2401BRIZ through Aetrix?
Please submit a Request for Quotation (RFQ) for ADUM2401BRIZ 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 ADUM2401BRIZ reliable?
The price and inventory of ADUM2401BRIZ are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ADUM2401BRIZ is usually 5 days.
3.What payment methods are accepted for ADUM2401BRIZ?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ADUM2401BRIZ transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for ADUM2401BRIZ?
ADUM2401BRIZ orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your ADUM2401BRIZ 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 ADUM2401BRIZ?
For technical support, including ADUM2401BRIZ datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ADUM2401BRIZ requirements.
6.How does Aetrix verify that ADUM2401BRIZ is sourced from the original manufacturer or authorized distributors?
All ADUM2401BRIZ 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 ADUM2401BRIZ meets industry standards.
7.What is the process for return or replacement of ADUM2401BRIZ?
All ADUM2401BRIZ units undergo pre-shipment inspection (PSI). If there is an issue with ADUM2401BRIZ, 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 ADUM2401BRIZ part is unused and in its original packaging.
Return procedure for ADUM2401BRIZ:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
ADUM2401BRIZ Tags
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ISO1212DBQR
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ISO6721BDR
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SI8710AC-B-ISR
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ISO7720FDR
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SI8710CC-B-ISR
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ISO6741FQDWRQ1
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ISO7762FDBQR
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ISO7741DWR
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ISO7741FDWR
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