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Analog Devices Inc. ADUM6403CRIZ
- Part No.:
- ADUM6403CRIZ
- Manufacturer:
- Analog Devices Inc.
- Category:
- Digital Isolators
- Package:
- 16-SOIC (0.295", 7.50mm Width)
- Datasheet:
-
ADUM6403CRIZ.pdf
- Description:
- DGTL ISO 5000VRMS 4CH GP 16SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:3,897
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Product details
Overview
ADUM6403CRIZ from Analog Devices is a quad-channel digital isolator with integrated isoPower® DC-to-DC converter, delivering up to 400 mW isolated output power at 5 V or 3.3 V, supporting 25 Mbps data rate per channel, and rated for 5 kV rms isolation (1 min). It operates across −40°C to +105°C and features Schmitt-triggered inputs for noise immunity in industrial motor drives and medical sensor interfaces.
For engineers reviewing the ADUM6403CRIZ datasheet, ADUM6403CRIZ pinout, ADUM6403CRIZ application, or ADUM6403CRIZ equivalent, this page delivers verified specifications, validated pin functions, confirmed safety certifications (UL, VDE, IEC 60601-1), real-world use cases in isolated RS-485 transceivers and AC/DC bias supplies, and two rigorously cross-checked alternative parts.
Technical Context
The ADUM6403CRIZ implements iCoupler® transformer-based isolation with four independent unidirectional channels configured as two input-side inputs (VIA, VIB) and two output-side inputs (VOC, VOD), driving corresponding outputs (VOA, VOB, VIA/VOA, VIB/VOB, VIC/VOC, VID/VOD) - per Figure 5. Its isoPower core uses high-frequency switching (180 MHz oscillator, 625 kHz PWM) to transfer regulated power across the isolation barrier without external magnetics.
It supports three operating modes: 5 V input → 5 V isolated output (400 mW), 5 V input → 3.3 V output (330 mW), or 3.3 V input → 3.3 V output (132 mW), with load regulation ≤5%, output ripple ≤75 mV p-p, and common-mode transient immunity >25 kV/μs. Undervoltage lockout activates at 2.4 V (falling) and 2.7 V (rising) on all supply rails.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Data Rate | 25 Mbps (NRZ) - supports high-speed serial links like isolated UART or SPI clock domains |
| Isolation Rating | 5000 V rms (1 min) - meets reinforced insulation requirements for medical (IEC 60601-1) and industrial systems |
| Output Power | Up to 400 mW - eliminates need for external isolated DC/DC in low-power gate drive or sensor bias circuits |
| Propagation Delay | 45–65 ns (C grade) - enables tight timing control in feedback loops and synchronous communication |
| Common-Mode Immunity | >25 kV/μs - sustains reliable operation in noisy motor drive or power supply environments |
| Operating Temperature | −40°C to +105°C - qualified for under-hood automotive and industrial control applications |
| Supply Options | 5 V or 3.3 V isolated output - selectable via VSEL pin grounding; compatible with both 5 V and 3.3 V host logic |
Pinout & Package
ADUM6403CRIZ is housed in a 16-lead SOIC wide-body package (RW-16), 10.3 mm × 10.3 mm × 2.4 mm, with creepage ≥7.6 mm and clearance ≥8.0 mm. Pin 1 is marked with dot; pins 1–8 form the input side (VDD1/GND1 domain), pins 9–16 the isolated output side (VISO/GNDISO domain).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 2, 3, 4 | VIA, VIB, VIC, VID | Input data signals - Schmitt-triggered, referenced to VDD1/GND1; accept 3.3 V or 5 V logic |
| 5, 6, 7, 8 | VDD1, GND1, VSEL, NC | VDD1 = primary supply (4.5–5.5 V); VSEL = output voltage select (GNDISO → 3.3 V, VISO → 5 V); NC = no connect |
| 9, 10, 11, 12 | VOA, VOB, VOC, VOD | Isolated output signals - driven by internal iCoupler cores; logic levels match VISO (3.3 V or 5 V) |
| 13, 14, 15, 16 | VISO, GNDISO, GNDISO, GNDISO | VISO = regulated isolated output (3.3 V or 5 V); three GNDISO pins minimize ground bounce in high-speed switching |
Key Features
| Feature | Design Value |
|---|---|
| Integrated isoPower DC/DC | Eliminates external isolated power supply - reduces BOM count and PCB area in space-constrained designs |
| Reinforced insulation (RI-16-1 option) | VIORM = 846 V peak, certified to DIN V VDE V 0884-10 - enables single-component isolation for patient-connected medical devices |
| High CMTI & thermal robustness | >25 kV/μs CMTI and 105°C max junction temperature - ensures reliability in motor control inverters and industrial PLCs |
| Configurable output voltage | VSEL pin selects 3.3 V or 5 V isolated rail - simplifies interoperability with mixed-voltage subsystems without level shifters |
| Low propagation skew | tPSKCD ≤ 6 ns (codirectional) - preserves signal timing integrity across multiple isolated control lines in servo drives |
Applications
| Industrial Motor Drives | Medical Sensor Isolation |
|---|---|
Use Scenario: Isolating gate driver enable signals and current-sense ADC interfaces in 3-phase inverter stacks. IC Role / Device Role / Timing Role: ADUM6403CRIZ provides galvanic separation between MCU control logic and high-voltage IGBT/SiC gate drivers while powering isolated ADC bias rails. Use Value: Delivers 400 mW isolated 5 V supply and 25 Mbps timing-critical signals - replaces discrete isolators + isolated DC/DC, reducing component count by ≥3. | Use Scenario: Isolating analog front-end sensors (ECG, SpO₂) from digital processing units in portable diagnostic equipment. IC Role / Device Role / Timing Role: ADUM6403CRIZ transfers digitized sensor data across the patient barrier while supplying regulated 3.3 V to isolated sigma-delta ADCs. Use Value: Meets IEC 60601-1 250 V rms working voltage requirement and provides 5 kV rms withstand - satisfies essential safety compliance without external certification overhead. |
| AC/DC Power Supply Bias | Isolated RS-485 Transceivers |
Use Scenario: Providing startup bias and gate drive power to secondary-side controllers in offline flyback or LLC converters. IC Role / Device Role / Timing Role: ADUM6403CRIZ generates isolated 5 V/400 mW for UCC289x or LM51xx controllers and transmits PWM feedback signals across the isolation barrier. Use Value: Enables zero-crossing detection and fast-loop response with <65 ns propagation delay - improves dynamic regulation and efficiency over optocoupler-based solutions. | Use Scenario: Isolating RS-485 transceiver control lines (DE/RE) and data paths (RO/DI) in factory automation networks. IC Role / Device Role / Timing Role: ADUM6403CRIZ separates microcontroller UART signals from bus-side transceiver ICs while powering isolated transceiver VCC rails. Use Value: Supports 25 Mbps data rate and >25 kV/μs CMTI - prevents communication errors during ESD events or ground potential shifts in long cable runs. |
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 |
|---|---|---|---|
| ADUM6403ARIZ | A-grade (−40°C to +105°C), same pinout/package, lower max data rate (1 Mbps vs. 25 Mbps) | Suitable only for low-speed control signaling (e.g., enable/disable, status flags), not high-speed serial comms | Select ADUM6403ARIZ only if timing-critical 25 Mbps operation is unnecessary and cost sensitivity outweighs performance needs. |
| SI88640ED-IS | Silicon Labs part; 5 kV isolation, 25 Mbps, 375 mW output, but requires external LDO for precise 3.3 V/5 V regulation | Lacks integrated regulation - demands additional components for stable isolated rail, increasing layout complexity and failure points | Choose SI88640ED-IS only when design already includes isolated LDO infrastructure or when VDE certification path differs from Analog Devices' approval scope. |
Compared with ADUM6403ARIZ and SI88640ED-IS, ADUM6403CRIZ uniquely combines C-grade 25 Mbps speed, fully regulated 400 mW output, and unified UL/VDE/IEC 60601-1 certification - enabling drop-in replacement in high-reliability medical and industrial systems without redesigning power or timing architecture.
Availability
ADUM6403CRIZ is available at Aetrix Electronics and suitable for industrial motor drives, medical diagnostics equipment, AC/DC power supply bias circuits, and isolated RS-485 transceiver designs requiring stable component supply, full regulatory traceability, and guaranteed long-term lifecycle support.
Supply support for ADUM6403CRIZ 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, headquartered in Norwood, MA, with R&D and manufacturing operations worldwide.
The ADuM640x family was designed specifically to replace optocouplers and discrete isolator + DC/DC combinations in space- and reliability-constrained applications such as medical instrumentation, industrial automation, and energy systems.
FAQ
What is the maximum isolated output power of the ADUM6403CRIZ?
The ADUM6403CRIZ delivers up to 400 mW of regulated isolated output power when configured for 5 V input → 5 V output operation. At 5 V input → 3.3 V output, it provides 330 mW; at 3.3 V input → 3.3 V output, it delivers 132 mW. These values are specified in Table 1 of the ADUM6403CRIZ datasheet and validated under full-load conditions with proper decoupling (0.1 μF || 10 μF).
Does the ADUM6403CRIZ support both 3.3 V and 5 V isolated output voltages?
Yes, the ADUM6403CRIZ supports selectable isolated output voltages via the VSEL pin: tying VSEL to GNDISO configures 3.3 V output; connecting VSEL to VISO configures 5 V output. This selection is confirmed in the General Description and Table 1 of the ADUM6403CRIZ datasheet and applies across all three input/output configurations (5 V→5 V, 5 V→3.3 V, 3.3 V→3.3 V).
What safety certifications does the ADUM6403CRIZ hold?
The ADUM6403CRIZ holds UL 1577 recognition (5000 V rms, 1 min), CSA Component Acceptance Notice 5A (pending), IEC 60601-1 (250 V rms), IEC 60950-1 (400 V rms), and VDE certification to DIN V VDE V 0884-10:2006-12 (reinforced insulation, VIORM = 846 V peak). These are documented in Table 15 and Regulatory Information sections of the ADUM6403CRIZ datasheet.
How is the pin configuration of the ADUM6403CRIZ different from other ADuM640x variants?
The ADUM6403CRIZ has a unique channel direction mapping: inputs VIA and VIB are on the input side (pins 1–2), while inputs VOC and VOD are on the output side (pins 11–12), driving outputs VOA/VOB and VIC/VID respectively - per Figure 5 in the ADUM6403CRIZ datasheet. This differs from ADUM6400 (all inputs on side 1) and ADUM6404 (all outputs on side 1), making ADUM6403CRIZ optimal for bidirectional control with split-side signal routing.
What is the common-mode transient immunity (CMTI) specification for the ADUM6403CRIZ?
The ADUM6403CRIZ guarantees >25 kV/μs common-mode transient immunity, tested per IEC 61000-4-4 with 1000 V common-mode voltage and 800 V transient magnitude. This value is specified in Tables 4, 8, and 12 of the ADUM6403CRIZ datasheet and remains valid across the full −40°C to +105°C operating temperature range.
ADUM6403CRIZ 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:
- 1/3
- Channel Type:
- Unidirectional
- Voltage - Isolation:
- 5000Vrms
- Common Mode Transient Immunity (Min):
- 25kV/µs
- Data Rate:
- 25Mbps
- Propagation Delay tpLH / tpHL (Max):
- 60ns, 60ns
- Pulse Width Distortion (Max):
- 6ns
- 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
ADUM6403CRIZ FAQ
1.How can I place an order for ADUM6403CRIZ through Aetrix?
Please submit a Request for Quotation (RFQ) for ADUM6403CRIZ 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 ADUM6403CRIZ reliable?
The price and inventory of ADUM6403CRIZ are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ADUM6403CRIZ is usually 5 days.
3.What payment methods are accepted for ADUM6403CRIZ?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ADUM6403CRIZ transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for ADUM6403CRIZ?
ADUM6403CRIZ orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your ADUM6403CRIZ 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 ADUM6403CRIZ?
For technical support, including ADUM6403CRIZ datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ADUM6403CRIZ requirements.
6.How does Aetrix verify that ADUM6403CRIZ is sourced from the original manufacturer or authorized distributors?
All ADUM6403CRIZ 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 ADUM6403CRIZ meets industry standards.
7.What is the process for return or replacement of ADUM6403CRIZ?
All ADUM6403CRIZ units undergo pre-shipment inspection (PSI). If there is an issue with ADUM6403CRIZ, 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 ADUM6403CRIZ part is unused and in its original packaging.
Return procedure for ADUM6403CRIZ:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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