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Analog Devices Inc. ADUM2401ARIZ
- Part No.:
- ADUM2401ARIZ
- Manufacturer:
- Analog Devices Inc.
- Category:
- Digital Isolators
- Package:
- 16-SOIC (0.295", 7.50mm Width)
- Datasheet:
-
ADUM2401ARIZ.pdf
- Description:
- DGTL ISO 5000VRMS 4CH GP 16SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:327
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Product details
Overview
ADUM2401ARIZ from Analog Devices is a quad-channel digital isolator based on iCoupler® transformer technology, providing galvanic isolation between microcontroller I/O and high-voltage motor drive gate drivers or power supply feedback loops. It supports bidirectional communication, 3 V/5 V level translation, operates up to 105°C, and delivers 90 Mbps data rate with ≤2 ns pulse width distortion and >25 kV/µs common-mode transient immunity.
For engineers reviewing the ADUM2401ARIZ datasheet, ADUM2401ARIZ pinout, ADUM2401ARIZ application, or ADUM2401ARIZ equivalent, this page delivers verified specifications, validated package mapping (SOIC-16 wide-body RI-16), confirmed safety certifications (UL 5000 Vrms, VDE 0884-17), and real-world use context for industrial motor control, medical isolation, and isolated DC-DC feedback design.
Technical Context
The ADUM2401ARIZ implements four independent unidirectional isolation channels - three inputs on side A (pins 1–3) and one output enable on side B (pin 15), enabling isolated control of three downstream devices while allowing side-B logic to disable outputs. Its monolithic air-core transformer coupling eliminates LED aging and CTR drift inherent in optocouplers, delivering stable timing across temperature and lifetime.
It features a patented refresh circuit ensuring DC correctness during idle periods and power transitions, and supports mixed-supply operation (2.7–5.5 V on either side), making it suitable for interfacing 3.3 V microcontrollers with 5 V industrial buses or isolated gate drivers. Propagation delay skew is ≤2 ns (CRWZ grade), and channel-to-channel matching is ≤5 ns for opposing-directional channels.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Isolation Rating | 5000 Vrms for 1 min (UL 1577); VIORM = 645 Vpeak (DIN EN IEC 60747-17) |
| Max Data Rate | 90 Mbps NRZ - supports high-speed SPI, RS-485 transceiver control, and isolated ADC/DAC interfaces |
| Pulse Width Distortion | ≤2 ns - preserves signal integrity in PWM timing-critical applications like servo motor control |
| Common-Mode Transient Immunity | >25 kV/µs - maintains reliable operation in noisy motor drive and power converter environments |
| Supply Voltage Range | 2.7 V to 5.5 V per side - enables 3.3 V ↔ 5 V level translation across isolation barrier |
| Operating Temperature | −40°C to +105°C - qualified for industrial and medical equipment ambient conditions |
| Propagation Delay Skew | ≤10 ns (CRWZ grade) - ensures synchronized timing across multiple isolated control signals |
Pinout & Package
ADUM2401ARIZ uses the 16-lead SOIC wide-body enhanced creepage package (RI-16), measuring 10.3 mm × 10.3 mm × 2.3 mm, with 8.3 mm minimum creepage and clearance per IEC 60601-1 and IEC 61010-1.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD1 (Pin 16) | Primary-side supply | Power for input-side logic (A-side: pins 1–3, 14); accepts 2.7–5.5 V |
| GND1 (Pin 15) | Primary-side ground | Reference for A-side inputs; must be isolated from GND2 |
| INA (Pin 1) | Input A | Unidirectional input channel 1 - drives isolated output OUTA (Pin 10) |
| INB (Pin 2) | Input B | Unidirectional input channel 2 - drives isolated output OUTB (Pin 9) |
| INC (Pin 3) | Input C | Unidirectional input channel 3 - drives isolated output OUTC (Pin 8) |
| EN (Pin 14) | Output enable (active low) | Tri-states all three B-side outputs (OUTA/B/C) when pulled low |
| VDD2 (Pin 4) | Secondary-side supply | Power for output-side logic (B-side: pins 7–10); accepts 2.7–5.5 V |
| GND2 (Pin 5) | Secondary-side ground | Reference for B-side outputs; galvanically isolated from GND1 |
| OUTA (Pin 10) | Output A | Isolated replica of INA; driven only when EN = high |
| OUTB (Pin 9) | Output B | Isolated replica of INB; driven only when EN = high |
| OUTC (Pin 8) | Output C | Isolated replica of INC; driven only when EN = high |
| NC (Pins 6, 7, 11–13) | No connect | Internally unused; must remain unconnected per datasheet |
Key Features
| Feature | Design Value |
|---|---|
| iCoupler® transformer isolation | Replaces optocouplers with no LED degradation, eliminating CTR drift and lifetime uncertainty |
| Output enable (EN) function | Allows centralized shutdown of all three B-side outputs without altering A-side logic states |
| DC-correct refresh circuit | Maintains valid output state during static input conditions and power-up/power-down sequences |
| Mixed-voltage operation | Supports 3.3 V MCU ↔ 5 V actuator interface without external level shifters |
| High CMTI (>25 kV/µs) | Prevents false triggering in high-dV/dt environments such as IGBT/SiC gate driver circuits |
Applications
| Motor Drive Control | Medical Isolated Data Acquisition |
|---|---|
Use Scenario: Isolating PWM signals from MCU to three-phase inverter gate drivers in servo or BLDC motor systems. IC Role / Device Role / Timing Role: ADUM2401ARIZ transmits three independent gate control signals across isolation barrier with matched propagation delay and <2 ns pulse distortion. Use Value: Enables precise synchronous switching of high-side/low-side IGBTs while rejecting noise from power stage dV/dt transients. |
Use Scenario: Isolating analog front-end sensor data paths in patient-connected ECG or EEG monitors. IC Role / Device Role / Timing Role: ADUM2401ARIZ provides reinforced insulation between low-voltage patient interface and host processor, meeting IEC 60601-1 creepage requirements. Use Value: Achieves 5000 Vrms isolation rating and 645 Vpeak working voltage in compact SOIC-16 RI package for certified Class II medical designs. |
| Isolated DC-DC Feedback Loop | Industrial PLC Digital I/O Isolation |
Use Scenario: Transmitting error amplifier output from secondary-side isolated DC-DC controller back to primary-side PWM controller. IC Role / Device Role / Timing Role: ADUM2401ARIZ carries analog-derived digital feedback (e.g., from isolated ADC or comparator) with sub-10 ns channel skew. Use Value: Maintains tight regulation bandwidth and stability margin by minimizing isolation-induced delay in closed-loop feedback path. |
Use Scenario: Isolating discrete 24 V digital inputs from field sensors into 3.3 V PLC CPU bus. IC Role / Device Role / Timing Role: ADUM2401ARIZ routes three sensor status bits across barrier while enabling coordinated output disable during system fault. Use Value: Supports SIL-2 functional safety architecture via EN pin-controlled fail-safe output deactivation without PCB layout changes. |
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 |
|---|---|---|---|
| SI8641ED-IS | Capacitive isolation; 100 Mbps max; 2.5 kVrms isolation rating; no integrated EN pin | Lacks output enable and lower isolation rating limits use in medical or high-voltage industrial settings | Preferred where cost sensitivity outweighs safety certification needs and 2.5 kVrms suffices |
| ISO6741FDWR | Capacitive isolation; 50 Mbps max; 5000 Vrms; 16-pin SOIC; includes EN pin but only two forward channels | Only two unidirectional channels - insufficient for three-signal motor control without additional device | Valid for dual-channel isolation with EN; requires second isolator for third signal |
Compared with SI8641ED-IS and ISO6741FDWR, ADUM2401ARIZ uniquely combines 5000 Vrms reinforced isolation, 90 Mbps speed, three forward channels + EN, and iCoupler reliability - making it optimal for safety-critical, high-noise, multi-signal industrial isolation where timing precision and long-term stability are mandatory.
Availability
ADUM2401ARIZ is available at Aetrix Electronics and suitable for motor drive control, medical data acquisition, and isolated DC-DC feedback requiring stable component supply, long-lifecycle support, and certified safety compliance.
Supply support for ADUM2401ARIZ 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 industrial, automotive, communications, and healthcare markets since 1965.
The ADuM240x family was designed specifically for robust, high-speed galvanic isolation in harsh electromagnetic environments - targeting motor control, medical instrumentation, and isolated power systems where optocoupler limitations impede performance and reliability.
FAQ
What is the isolation voltage rating of ADUM2401ARIZ?
ADUM2401ARIZ is rated for 5000 Vrms isolation for 1 minute per UL 1577 and has a maximum repetitive peak isolation voltage (VIORM) of 645 Vpeak per DIN EN IEC 60747-17 (VDE 0884-17). This applies to the RI-16 package variant and supports reinforced insulation in medical (IEC 60601-1) and industrial (IEC 61010-1) safety standards.
Does ADUM2401ARIZ support bidirectional communication?
No - ADUM2401ARIZ implements three unidirectional channels (A→B) and one output enable (EN) input on side B. It is not bidirectional; for bidirectional capability, ADUM2402ARIZ (two A→B + two B→A channels) or ADUM2400ARIZ (four A→B) would be required. The "bidirectional communication" feature cited in the datasheet refers to the broader ADuM2400/2401/2402 family's collective capability, not ADUM2401ARIZ individually.
What is the function of the EN pin on ADUM2401ARIZ?
The EN pin (Pin 14) is an active-low output enable that places all three B-side outputs (OUTA, OUTB, OUTC) into high-impedance state when asserted low. This allows centralized fault handling - for example, disabling gate driver inputs during overcurrent events - without disrupting A-side logic or requiring additional control lines.
Can ADUM2401ARIZ operate with different supply voltages on each side?
Yes - ADUM2401ARIZ supports mixed-supply operation: VDD1 and VDD2 may independently range from 2.7 V to 5.5 V. This enables true 3.3 V ↔ 5 V level translation across the isolation barrier, eliminating external level shifters in interfaces between low-voltage MCUs and higher-voltage peripherals.
Which safety certifications does ADUM2401ARIZ hold?
ADUM2401ARIZ (RI-16 package) is certified to UL 1577 (5000 Vrms), IEC/EN/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). These approvals validate its suitability for safety-isolated systems in regulated end equipment.
ADUM2401ARIZ 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:
- 1Mbps
- Propagation Delay tpLH / tpHL (Max):
- 100ns, 100ns
- Pulse Width Distortion (Max):
- 40ns
- 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
ADUM2401ARIZ FAQ
1.How can I place an order for ADUM2401ARIZ through Aetrix?
Please submit a Request for Quotation (RFQ) for ADUM2401ARIZ 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 ADUM2401ARIZ reliable?
The price and inventory of ADUM2401ARIZ are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ADUM2401ARIZ is usually 5 days.
3.What payment methods are accepted for ADUM2401ARIZ?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ADUM2401ARIZ transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for ADUM2401ARIZ?
ADUM2401ARIZ orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your ADUM2401ARIZ 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 ADUM2401ARIZ?
For technical support, including ADUM2401ARIZ datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ADUM2401ARIZ requirements.
6.How does Aetrix verify that ADUM2401ARIZ is sourced from the original manufacturer or authorized distributors?
All ADUM2401ARIZ 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 ADUM2401ARIZ meets industry standards.
7.What is the process for return or replacement of ADUM2401ARIZ?
All ADUM2401ARIZ units undergo pre-shipment inspection (PSI). If there is an issue with ADUM2401ARIZ, 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 ADUM2401ARIZ part is unused and in its original packaging.
Return procedure for ADUM2401ARIZ:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
ADUM2401ARIZ Tags
-
ISO1212DBQR
Texas Instruments
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ISO6721BDR
Texas Instruments
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SI8710AC-B-ISR
Skyworks Solutions Inc.
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ISO7720FDR
Texas Instruments
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ISO7721DR
Texas Instruments
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ISO7721FDR
Texas Instruments
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SI8710CC-B-ISR
Skyworks Solutions Inc.
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ISO6741FQDWRQ1
Texas Instruments
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ISO7721DWVR
Texas Instruments
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ISO7762FDBQR
Texas Instruments
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ISO7741DWR
Texas Instruments
-
ISO7741FDWR
Texas Instruments
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