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Analog Devices Inc. ADUM2401CRIZ
- Part No.:
- ADUM2401CRIZ
- Manufacturer:
- Analog Devices Inc.
- Category:
- Digital Isolators
- Package:
- 16-SOIC (0.295", 7.50mm Width)
- Datasheet:
-
ADUM2401CRIZ.pdf
- Description:
- DGTL ISO 5000VRMS 4CH GP 16SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:1,767
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Product details
Overview
ADUM2401CRIZ from Analog Devices is a quad-channel digital isolator using iCoupler® transformer-based isolation technology, providing bidirectional signal transmission across a reinforced 5000 Vrms isolation barrier. It supports up to 90 Mbps data rate, features ≤2 ns pulse width distortion and ≤2 ns channel-to-channel matching, and operates from 2.7 V to 5.5 V on both sides-enabling 3 V/5 V level translation in motor drive gate driver interfaces.
For engineers reviewing the ADUM2401CRIZ datasheet, ADUM2401CRIZ pinout, ADUM2401CRIZ application, or ADUM2401CRIZ equivalent, this device is selected for high-speed, low-jitter isolated communication in safety-critical industrial inverters, medical power supplies, and isolated ADC/DAC interfaces where common-mode transient immunity >25 kV/µs and guaranteed dc correctness are required.
Technical Context
The ADUM2401CRIZ implements four independent unidirectional channels (2 forward, 2 reverse) using monolithic air-core transformers and integrated CMOS interface circuitry. Its patented refresh circuit ensures dc-correct output during static input conditions and power sequencing, eliminating optocoupler-like baseline drift.
It delivers precise timing performance: propagation delay ≤32 ns (typ), skew ≤10 ns, and temperature coefficient of only 3 ps/°C-making it suitable for time-sensitive feedback loops in servo controllers and isolated PWM systems operating up to 105°C ambient.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Isolation Rating | 5000 Vrms for 1 minute (UL 1577); VIORM = 645 Vpeak (DIN EN IEC 60747-17) |
| Max Data Rate | 90 Mbps (NRZ), enabling real-time control loop closure in high-frequency motor drives |
| Pulse Width Distortion | ≤2 ns (max), preserving duty cycle fidelity for PWM signals across isolation barrier |
| Channel Matching | ≤2 ns (codirectional), critical for synchronized multi-phase gate driver timing |
| Supply Range | 2.7 V–5.5 V per side, supporting mixed-voltage system interfacing (e.g., 3.3 V MCU to 5 V IGBT driver) |
| Common-Mode Immunity | >25 kV/µs, ensuring robust operation in noisy variable-frequency drive environments |
| Operating Temperature | −40°C to +105°C, qualified for under-hood automotive and industrial enclosure use |
Pinout & Package
ADUM2401CRIZ is housed in a 16-lead SOIC wide-body package (RI-16) with enhanced creepage (≥8 mm) and clearance, certified for reinforced insulation per IEC/EN/CSA 62368-1, IEC/CSA 60601-1, and IEC/CSA 61010-1.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD1 | Primary-side supply | Power for inputs A/B and outputs Y/Z; accepts 2.7–5.5 V |
| GND1 | Primary-side ground | Reference for A/B inputs and Y/Z outputs |
| INA, INB | Input channels (primary side) | Accept CMOS logic; VIH = 2.0 V (5 V mode) or 1.6 V (3 V mode) |
| OUTY, OUTZ | Output channels (secondary side) | Drive downstream logic; VOH ≥ VDD2 − 0.4 V at 3.2 mA load |
| VDD2 | Secondary-side supply | Power for inputs E1/E2 and outputs A/B; independent 2.7–5.5 V domain |
| GND2 | Secondary-side ground | Isolated reference for E1/E2 inputs and A/B outputs |
| INE1, INE2 | Input channels (secondary side) | Bidirectional enable: accept logic to drive primary-side outputs A/B |
| OUTA, OUTB | Output channels (primary side) | Isolated outputs referenced to GND1; support level translation back to primary domain |
Key Features
| Feature | Design Value |
|---|---|
| iCoupler® transformer isolation | Eliminates LED aging and CTR degradation-ensures stable timing over 50+ year lifetime |
| Patented refresh circuit | Maintains correct logic state during DC input or power-up/power-down without external watchdog |
| 3 V/5 V level translation | Enables direct interface between low-voltage microcontrollers and high-voltage gate drivers without external level shifters |
| Output enable function | Allows tri-state control of secondary-side outputs (Y/Z) for bus sharing or fault isolation |
| High CMTI immunity | Withstands >25 kV/µs transients-prevents false triggering in IGBT/SiC half-bridge switching noise |
Applications
| Motor Drive Control | Medical Isolated Power Supply |
|---|---|
Use Scenario: Isolating PWM signals from MCU to three-phase inverter gate drivers in servo amplifiers. IC Role / Device Role / Timing Role: ADUM2401CRIZ transmits synchronized, jitter-free gate enable/disable commands across reinforced barrier while maintaining <2 ns channel skew. Use Value: Enables precise dead-time control and prevents shoot-through in 20 kHz+ switching SiC inverters. | Use Scenario: Providing isolated feedback and control signals in Class II medical AC/DC power supplies compliant with IEC 60601-1. IC Role / Device Role / Timing Role: ADUM2401CRIZ carries isolated voltage sense and enable signals between primary-side controller and secondary-side monitoring IC. Use Value: Meets reinforced insulation requirements and eliminates optocoupler drift-induced regulation error over product lifetime. |
| Industrial PLC Digital I/O | Isolated Data Acquisition |
Use Scenario: Galvanically isolating field-side digital inputs (24 V sensors) and outputs (relay drivers) in programmable logic controllers. IC Role / Device Role / Timing Role: ADUM2401CRIZ provides bidirectional status reporting and command forwarding between field and logic domains with 90 Mbps headroom. Use Value: Supports high-speed diagnostics and reduces scan cycle time in modular I/O modules. | Use Scenario: Isolating SPI clock/data lines between isolated ADC (e.g., AD7403) and host processor in high-voltage energy metering. IC Role / Device Role / Timing Role: ADUM2401CRIZ transmits SCLK, MOSI, MISO, and CS with <2 ns PWD to preserve SPI timing margins at 20 MHz. Use Value: Prevents timing violations and sampling errors caused by isolation-induced jitter in precision 24-bit delta-sigma converters. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar digital isolation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SI8641ED-B-IS | Capacitive isolation; 100 Mbps max; 2.5 kVrms rating; no integrated refresh circuit | Limited to basic industrial isolation; not certified for medical or high-reliability motor drives | Select when cost sensitivity outweighs safety certification and dc correctness requirements |
| ISO7741FQDWR | Capacitive isolation; 100 Mbps; 5000 Vrms; integrated failsafe default state | Requires external biasing for dc-correct behavior during idle; lower CMTI (100 kV/µs typical but not guaranteed min) | Prefer for automotive body electronics where failsafe defaults are mandated, but verify CMTI margin in high-noise traction inverters |
Compared with SI8641ED-B-IS and ISO7741FQDWR, the ADUM2401CRIZ offers guaranteed dc correctness via refresh, higher minimum CMTI (>25 kV/µs), and full regulatory compliance for medical and industrial safety standards-making it the preferred choice where long-term reliability and deterministic behavior are non-negotiable.
Availability
ADUM2401CRIZ is available at Aetrix Electronics and suitable for motor drive control, medical isolated power supplies, industrial PLC digital I/O, and isolated data acquisition requiring stable component supply across extended production lifecycles.
Supply support for ADUM2401CRIZ 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.
The ADuM240x family was designed specifically for high-speed, safety-certified galvanic isolation in mission-critical systems-emphasizing timing precision, long-term stability, and regulatory compliance over raw speed alone.
FAQ
What is the maximum guaranteed data rate for ADUM2401CRIZ?
The ADUM2401CRIZ is rated for a maximum guaranteed data rate of 90 Mbps under NRZ signaling with ≤2 ns pulse width distortion. This specification is validated across temperature (−40°C to +105°C) and supply voltage (2.7 V–5.5 V per side), and applies to all four channels simultaneously. The device can operate up to 120 Mbps in typical conditions, but 90 Mbps is the production-tested, datasheet-guaranteed limit for full parametric compliance.
Does ADUM2401CRIZ support level translation between 3.3 V and 5 V domains?
Yes, ADUM2401CRIZ supports true bidirectional level translation: VDD1 and VDD2 may be independently set from 2.7 V to 5.5 V. When VDD1 = 3.3 V and VDD2 = 5 V, inputs on the 3.3 V side correctly recognize 5 V logic levels on the opposite side, and outputs swing to appropriate VOH/VOL thresholds for each domain-eliminating external level-shifting components in mixed-voltage systems.
How does the refresh feature in ADUM2401CRIZ ensure dc correctness?
The ADUM2401CRIZ incorporates a patented internal refresh circuit that periodically samples the input state and retransmits it across the isolation barrier-even during static (dc) input conditions or power-up/power-down transitions. This prevents output latch-up or metastability, guaranteeing that the isolated output remains logically faithful to the input without requiring external clocking or watchdog signals-a key advantage over optocouplers and some capacitive isolators.
What safety certifications apply to ADUM2401CRIZ?
ADUM2401CRIZ (RI-16 package) is certified to UL 1577 (5000 Vrms/1 min), DIN EN IEC 60747-17 (VDE 0884-17), IEC/EN/CSA 62368-1, IEC/CSA 60601-1 (medical), and IEC/CSA 61010-1 (industrial test equipment). These approvals validate its reinforced insulation structure for end-equipment safety compliance in high-risk applications.
Can ADUM2401CRIZ replace optocouplers in existing designs without layout changes?
ADUM2401CRIZ uses the same 16-lead SOIC wide-body (RI-16) footprint as legacy optocouplers like HCPL-0900, enabling drop-in replacement in most cases. However, due to its lower supply current (e.g., 31 mA total @ 90 Mbps vs. >100 mA for high-speed optos) and absence of CTR variation, PCB thermal design and decoupling may be simplified-but signal integrity validation at target data rates is still recommended.
ADUM2401CRIZ 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:
- 90Mbps
- Propagation Delay tpLH / tpHL (Max):
- 32ns, 32ns
- Pulse Width Distortion (Max):
- 2ns
- 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
ADUM2401CRIZ FAQ
1.How can I place an order for ADUM2401CRIZ through Aetrix?
Please submit a Request for Quotation (RFQ) for ADUM2401CRIZ 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 ADUM2401CRIZ reliable?
The price and inventory of ADUM2401CRIZ are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ADUM2401CRIZ is usually 5 days.
3.What payment methods are accepted for ADUM2401CRIZ?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ADUM2401CRIZ transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for ADUM2401CRIZ?
ADUM2401CRIZ orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your ADUM2401CRIZ 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 ADUM2401CRIZ?
For technical support, including ADUM2401CRIZ datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ADUM2401CRIZ requirements.
6.How does Aetrix verify that ADUM2401CRIZ is sourced from the original manufacturer or authorized distributors?
All ADUM2401CRIZ 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 ADUM2401CRIZ meets industry standards.
7.What is the process for return or replacement of ADUM2401CRIZ?
All ADUM2401CRIZ units undergo pre-shipment inspection (PSI). If there is an issue with ADUM2401CRIZ, 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 ADUM2401CRIZ part is unused and in its original packaging.
Return procedure for ADUM2401CRIZ:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
ADUM2401CRIZ 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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