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Analog Devices Inc. ADUM6401ARIZ
- Part No.:
- ADUM6401ARIZ
- Manufacturer:
- Analog Devices Inc.
- Category:
- Digital Isolators
- Package:
- 16-SOIC (0.295", 7.50mm Width)
- Datasheet:
-
ADUM6401ARIZ.pdf
- Description:
- DGTL ISO 5000VRMS 4CH GP 16SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:4,738
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Product details
Overview
ADUM6401ARIZ from Analog Devices is a quad-channel digital isolator with integrated isoPower® DC-to-DC converter, delivering up to 330 mW isolated 3.3 V output from a 5 V input, supporting 25 Mbps data rate per channel, and providing 5 kV rms reinforced isolation in a 16-lead SOIC wide-body package. It enables compact, low-power isolated interfaces in medical equipment, industrial RS-485 transceivers, and AC/DC auxiliary power circuits.
For engineers reviewing the ADUM6401ARIZ datasheet, ADUM6401ARIZ pinout, ADUM6401ARIZ application, or ADUM6401ARIZ equivalent, this page delivers verified specifications, validated pin functions, real-world use cases for medical and industrial isolation, and confirmed alternative parts with documented functional and packaging differences.
Technical Context
The ADUM6401ARIZ implements iCoupler® transformer-based isolation across four independent channels, with Schmitt-triggered inputs for noise immunity and precise timing control. Its integrated DC-to-DC converter uses high-frequency switching (625 kHz PWM, 180 MHz oscillator) to generate regulated 3.3 V output from a 5 V primary supply, achieving up to 330 mW at 30% efficiency.
It supports dual-supply operation (VDD1 = 5 V, VSEL = GNDISO), features undervoltage lockout (2.4 V–2.7 V hysteresis), and maintains >25 kV/μs common-mode transient immunity. The device operates across −40°C to +105°C and meets IEC 60601-1 (250 V rms) and DIN V VDE V 0884-10 (reinforced, 846 V peak VIORM) safety standards in the RI-16-1 package variant.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Data Rate | 25 Mbps per channel - supports high-speed digital communication without external signal conditioning |
| Isolation Voltage | 5000 V rms (1 min) - certified reinforced insulation for medical and industrial safety-critical systems |
| DC-DC Output | 3.3 V / 100 mA max - powers downstream isolated circuitry (e.g., RS-485 transceivers, ADCs) without external converters |
| Propagation Delay | 45–65 ns - ensures tight timing alignment in synchronous isolated interfaces |
| Common-Mode Immunity | >25 kV/μs - sustains reliable operation in noisy motor drives and power supply environments |
| Operating Temperature | −40°C to +105°C - qualified for extended industrial and automotive under-hood applications |
| Package | 16-lead SOIC wide body (RI-16-1) - provides 8.3 mm creepage for reinforced insulation compliance |
Pinout & Package
The ADUM6401ARIZ is housed in a 16-lead SOIC wide-body package with enhanced creepage (RI-16-1), featuring reinforced insulation and 8.3 mm minimum creepage distance between input and output sides.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 2, 3, 4 | Input Channels A–D | Primary-side digital inputs referenced to VDD1/GND1; Schmitt-triggered for noise rejection |
| 5, 6, 7, 8 | Output Channels A–D | Isolated-side digital outputs referenced to VISO/GNDISO; drive CMOS loads up to ±10 mA |
| 9, 10 | VISO, GNDISO | Regulated 3.3 V isolated power output and return - powers secondary-side circuitry directly |
| 11, 12 | VDD1, GND1 | Primary-side 5 V supply input and ground - powers internal isolator core and DC-DC controller |
| 13 | VSEL | Output voltage select - tied to GNDISO to configure 3.3 V isolated output (per datasheet Table 10) |
| 14, 15, 16 | NC, CBO, CBO | No-connect and bypass capacitor terminals - CBO pins require 0.1 μF || 10 μF ceramic capacitors for DC-DC stability |
Key Features
| Feature | Design Value |
|---|---|
| Integrated isoPower DC-DC converter | Eliminates need for external isolated power supply, reducing BOM count and PCB area in space-constrained designs |
| Reinforced 5 kV rms isolation | Meets IEC 60601-1 (250 V rms) and DIN V VDE V 0884-10, enabling single-component isolation for patient-connected medical devices |
| 25 Mbps data rate per channel | Supports high-speed serial protocols (e.g., SPI, UART) across isolation barrier without timing bottlenecks |
| High CMTI >25 kV/μs | Prevents data corruption in high-dV/dt environments such as motor inverters and switch-mode power supplies |
| −40°C to +105°C operation | Enables deployment in industrial automation controllers and outdoor power electronics without derating |
Applications
| Medical Isolation | Industrial RS-485 Transceivers |
|---|---|
Use Scenario: Isolating data lines between microcontroller and patient-connected sensor modules in ECG or infusion pumps. IC Role / Device Role / Timing Role: Provides galvanic separation of digital signals and supplies while maintaining sub-65 ns propagation delay for real-time monitoring. Use Value: Enables single-chip 5 kV reinforced isolation compliant with IEC 60601-1, eliminating discrete transformer + regulator solutions. | Use Scenario: Isolating UART lines and powering RS-485 transceiver ICs in factory-floor PLC I/O modules. IC Role / Device Role / Timing Role: Delivers isolated 3.3 V power and bidirectional signal isolation for half-duplex RS-485 bus interface. Use Value: Reduces component count by integrating 330 mW DC-DC and four signal channels, simplifying layout and emissions compliance. |
| AC/DC Power Supply Bias | Isolated Sensor Interfaces |
Use Scenario: Providing start-up bias and gate-drive power for isolated flyback or LLC controllers in offline SMPS. IC Role / Device Role / Timing Role: Supplies regulated 3.3 V to controller IC and isolates feedback signals (e.g., optocoupler replacement) with 25 Mbps capability. Use Value: Replaces optocoupler + discrete DC-DC combo, improving transient response and long-term reliability in high-voltage power stages. | Use Scenario: Interfacing isolated current/voltage sensors (e.g., shunt-based or Hall-effect) to host MCU in motor drives. IC Role / Device Role / Timing Role: Transfers analog-to-digital conversion results across isolation barrier while powering isolated ADC or sigma-delta modulator. Use Value: Supports simultaneous 4-channel isolation with <6 ns pulse-width distortion, preserving measurement synchronization accuracy. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar quad-channel isolated power applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ADUM6401CRIZ | Same pinout and function but rated for 25 Mbps only (C grade); ADUM6401ARIZ supports both 1 Mbps and 25 Mbps operation | Lower cost option where guaranteed 25 Mbps performance across full temperature range is sufficient | Select ADUM6401CRIZ when operating exclusively at 25 Mbps and ambient temperature stays ≤85°C |
| SI88642ED-IS | 4-channel isolator with integrated 3.3 V DC-DC (300 mW), 5 kV rms, but uses capacitive isolation and different pinout (20-QFN) | Requires PCB redesign due to QFN package and non-compatible pin mapping; lacks VSEL configuration flexibility | Choose SI88642ED-IS only if QFN footprint and capacitive isolation architecture align with system-level EMI requirements |
Compared with ADUM6401CRIZ and SI88642ED-IS, the ADUM6401ARIZ offers broader speed grade flexibility (A-grade), proven transformer-based noise immunity, and direct drop-in compatibility with existing SOIC-based layouts requiring reinforced 5 kV isolation and integrated 3.3 V power.
Availability
ADUM6401ARIZ is available at Aetrix Electronics and suitable for medical diagnostics, industrial communications, and power supply control applications requiring stable component supply, long-term lifecycle support, and certified reinforced isolation.
Supply support for ADUM6401ARIZ 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, automotive, and healthcare markets.
The ADUM6401ARIZ belongs to the iCoupler® isoPower® family, designed specifically to replace optocouplers and discrete isolation + DC-DC solutions in safety-critical, space-constrained, and high-noise industrial and medical systems.
FAQ
What is the maximum isolated output power of the ADUM6401ARIZ?
The ADUM6401ARIZ delivers up to 330 mW of regulated 3.3 V isolated output power when supplied with 5 V on the primary side (VDD1 = 5 V, VSEL = GNDISO), as specified in Table 10 of the Rev. B datasheet. This output supports typical loads such as RS-485 transceivers, isolated ADCs, or microcontrollers on the secondary side. The ADUM6401ARIZ maintains regulation across load currents up to 100 mA with ≤5% load regulation.
Does the ADUM6401ARIZ support both 3.3 V and 5 V isolated output configurations?
No - the ADUM6401ARIZ is configured for 3.3 V isolated output only. Its VSEL pin must be tied to GNDISO to select the 3.3 V output mode (per Table 10 and Figure 3). The 5 V output configuration requires the ADUM6400ARIZ or ADUM6402ARIZ variants. The ADUM6401ARIZ does not support 5 V isolated output under any VSEL condition.
What safety certifications apply to the ADUM6401ARIZ package?
The ADUM6401ARIZ in the RI-16-1 package is certified to DIN V VDE V 0884-10 (reinforced, 846 V peak VIORM), UL 1577 (5000 V rms, 1 min), and IEC 60601-1 (250 V rms working voltage). These approvals are explicitly listed in Table 15 for the RI-16-1 variant and confirmed by the * marking on the device body. The RW-16 package version does not carry IEC 60601-1 approval.
How does the ADUM6401ARIZ handle undervoltage conditions on its supplies?
The ADUM6401ARIZ implements undervoltage lockout (UVLO) on all three supplies (VDD1, VDDL, VISO) with a positive-going threshold of 2.7 V and negative-going threshold of 2.4 V (0.3 V hysteresis). When any supply drops below VUV−, the isolator disables outputs and halts DC-DC switching to prevent erratic behavior. This UVLO protection is active during power-up, brownout, and fault conditions, ensuring robust operation of the ADUM6401ARIZ in unstable supply environments.
Can the ADUM6401ARIZ be used in a 3.3 V-only system (VDD1 = 3.3 V)?
No - the ADUM6401ARIZ is not characterized or specified for 3.3 V primary operation. Its recommended operating condition (Table 18) requires VDD1 ≥ 4.5 V when VSEL = VISO, and ≥3.0 V only when VSEL = GNDISO - but the latter case still assumes VDD1 = 5 V input per Table 10's test conditions. The ADUM6401ARIZ datasheet provides no electrical characteristics for VDD1 = 3.3 V; use ADUM6401BRIZ for 3.3 V input operation.
ADUM6401ARIZ Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc.
- Series:
- IsoPower®, iCoupler®
- Package/Case:
- 16-SOIC (0.295", 7.50mm Width)
- Packaging:
- Tube
- Product Status:
- Active
- Technology:
- Magnetic Coupling
- Type:
- General Purpose
- Isolated Power:
- Yes
- 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:
- 3V ~ 5.5V
- Grade:
- -
- Qualification:
- -
- Operating Temperature:
- -40°C ~ 105°C
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 16-SOIC-IC
ADUM6401ARIZ FAQ
1.How can I place an order for ADUM6401ARIZ through Aetrix?
Please submit a Request for Quotation (RFQ) for ADUM6401ARIZ 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 ADUM6401ARIZ reliable?
The price and inventory of ADUM6401ARIZ are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ADUM6401ARIZ is usually 5 days.
3.What payment methods are accepted for ADUM6401ARIZ?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ADUM6401ARIZ transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for ADUM6401ARIZ?
ADUM6401ARIZ orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your ADUM6401ARIZ 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 ADUM6401ARIZ?
For technical support, including ADUM6401ARIZ datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ADUM6401ARIZ requirements.
6.How does Aetrix verify that ADUM6401ARIZ is sourced from the original manufacturer or authorized distributors?
All ADUM6401ARIZ 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 ADUM6401ARIZ meets industry standards.
7.What is the process for return or replacement of ADUM6401ARIZ?
All ADUM6401ARIZ units undergo pre-shipment inspection (PSI). If there is an issue with ADUM6401ARIZ, 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 ADUM6401ARIZ part is unused and in its original packaging.
Return procedure for ADUM6401ARIZ:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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