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Analog Devices Inc. ADUM261N1BRIZ-RL
- Part No.:
- ADUM261N1BRIZ-RL
- Manufacturer:
- Analog Devices Inc.
- Category:
- Digital Isolators
- Package:
- 16-SOIC (0.295", 7.50mm Width)
- Datasheet:
-
ADUM261N1BRIZ-RL.pdf
- Description:
- DGTL ISO 5000VRMS 6CH GP 16SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:4,228
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Product details
Overview
ADUM261N1BRIZ-RL from Analog Devices is a 6-channel, 5.0 kVRMS reinforced digital isolator using iCoupler® technology, with 150 Mbps guaranteed data rate, 13 ns max propagation delay at 5 V, and fail-safe high output configuration. It enables robust SPI/data converter isolation in industrial PLCs and motor drives requiring galvanic separation between MCU and high-voltage power stages.
For engineers reviewing the ADUM261N1BRIZ-RL datasheet, ADUM261N1BRIZ-RL pinout, ADUM261N1BRIZ-RL application, or ADUM261N1BRIZ-RL equivalent, key selection criteria include its 1.8 V to 5.5 V dual-supply operation, 100 kV/µs common-mode transient immunity, AEC-Q100 qualification, and SOIC_IC wide-body package with 8.7 mm creepage/clearance for reinforced insulation compliance.
Technical Context
The ADUM261N1BRIZ-RL implements six independent unidirectional channels using monolithic air-core transformers, supporting asymmetric voltage translation (e.g., 1.8 V input to 5 V output) and ensuring DC correctness without input transitions. Its architecture delivers tight channel-to-channel propagation delay matching (≤4.0 ns codirectional skew) and low jitter (70 ps rms).
Fail-safe behavior is defined by the N1 suffix: outputs default to logic high when either side's supply is absent. The device meets reinforced insulation requirements per DIN EN IEC 60747-17 (VDE 0884-17), UL 1577, and IEC 62368-1, with VIORM = 849 VPEAK and rated working voltage of 600 VRMS.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Isolation Rating | 5.0 kVRMS for 1 minute - enables reinforced insulation in safety-critical industrial and medical systems |
| Data Rate | 150 Mbps guaranteed - supports high-speed SPI, RS-485, and digital encoder interfaces |
| Propagation Delay | 13 ns max at 5 V - ensures timing-critical control loop integrity in motor drives and power converters |
| Common-Mode Immunity | 100 kV/µs - maintains signal integrity in noisy environments like variable-frequency drives and factory automation |
| Supply Range | 1.7 V to 5.5 V per side - allows direct interfacing with legacy 5 V logic and modern ultra-low-voltage MCUs |
| Operating Temp | −40°C to +125°C - qualified for under-hood automotive and industrial ambient conditions |
| Fail-Safe Output | High (N1 variant) - prevents undefined states during power sequencing or supply faults in safety-monitored systems |
Pinout & Package
ADUM261N1BRIZ-RL uses a 16-lead RoHS-compliant wide-body SOIC_IC package (RI-16), providing 8.7 mm creepage and clearance for reinforced insulation. Pin 1–8 form the input-side bank; pins 9–16 form the output-side bank.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD1, GND1 | Input-side power and ground | Supplies isolated input logic; decoupling required within 10 mm of pins |
| VDD2, GND2 | Output-side power and ground | Supplies isolated output logic; independent voltage domain enables level translation |
| INA–INF | Input data channels A–F | Unidirectional CMOS-compatible inputs; accept 1.7–5.5 V logic levels |
| OUTA–OUTF | Output data channels A–F | CMOS outputs with rail-to-rail swing; drive ±10 mA per pin |
| NC | No-connect | Pins 4, 5, 12, 13 are internally unused; must remain unconnected |
Key Features
| Feature | Design Value |
|---|---|
| iCoupler® transformer isolation | Eliminates LED aging and CTR degradation of optocouplers; guarantees >50-year insulation lifetime at rated stress |
| DC-correct output state | Maintains valid logic level even with no input transitions - critical for watchdog and fault-monitoring circuits |
| Low dynamic power | 0.01 mA/Mbps input current - reduces thermal load in dense PCB layouts and battery-backed systems |
| AEC-Q100 Grade 1 | Qualified for automotive applications up to +125°C ambient - suitable for EV battery management and ADAS sensor interfaces |
| Reinforced insulation certification | DIN EN IEC 60747-17 (VDE 0884-17), UL 1577, IEC 60601-1 (2 MOPP) - simplifies system-level safety certification |
Applications
| Industrial Motor Drives | SPI Isolation for Data Converters |
|---|---|
Use Scenario: Isolating gate driver control signals from MCU in 3-phase inverter stacks operating at 600 V bus voltage. IC Role / Device Role / Timing Role: Unidirectional digital isolator transmitting PWM enable, fault feedback, and current-sense ADC readback across isolation barrier. Use Value: 13 ns propagation delay preserves dead-time accuracy; 100 kV/µs CMTI prevents false triggering during IGBT switching transients. |
Use Scenario: Isolating high-resolution SAR ADC (e.g., AD7606) serial interface from host processor in precision power quality meters. IC Role / Device Role / Timing Role: Six-channel isolator carrying SCLK, CS, BUSY, and 4-bit parallel data lines between ADC and controller. Use Value: 150 Mbps capability supports full-speed SPI bursts; 1.8 V–5.5 V dual supply enables direct connection to both low-voltage ADC core and 3.3 V MCU. |
| Programmable Logic Controllers | Automotive Battery Management Systems |
Use Scenario: Isolating digital I/O modules handling 24 V DC field signals in factory automation cabinets with shared ground noise. IC Role / Device Role / Timing Role: General-purpose multichannel isolator for discrete input conditioning and output drive enable paths. Use Value: Fail-safe high outputs prevent unintended actuator activation during power loss; 8.7 mm creepage meets IEC 61000-4-5 surge immunity requirements. |
Use Scenario: Isolating cell voltage monitoring ICs (e.g., AD7280A) from main BMS microcontroller in 400 V EV traction battery packs. IC Role / Device Role / Timing Role: Reinforced isolator carrying daisy-chained SPI clock, data, and chip-select signals across 500 V potential difference. Use Value: AEC-Q100 qualification ensures reliability over vehicle lifetime; 5.0 kVRMS rating exceeds ISO 26262 ASIL-D requirements for HV battery isolation. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar digital isolator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SI8661ED-B-IS | 6-channel, 5.0 kVRMS, 150 Mbps, but uses capacitive isolation and has 15 ns max propagation delay at 5 V | Lacks AEC-Q100 qualification; VIORM = 600 VPEAK vs. 849 VPEAK - not suitable for reinforced insulation in medical or automotive systems | Select when cost sensitivity outweighs need for automotive qualification or highest CMTI margin |
| ISO6761FRDWR | 6-channel, 5.0 kVRMS, 50 Mbps max data rate, 25 ns max propagation delay, failsafe low (N0-type) | Lower speed and higher latency limit use in high-bandwidth SPI or fast encoder interfaces; failsafe low conflicts with ADUM261N1BRIZ-RL's high-default requirement | Choose only for legacy designs where lower bandwidth suffices and fail-safe polarity matches system logic architecture |
Compared with SI8661ED-B-IS and ISO6761FRDWR, ADUM261N1BRIZ-RL provides superior timing performance (13 ns vs. ≥15 ns), higher reinforced insulation rating (849 VPEAK), and automotive qualification - making it optimal for high-reliability, high-speed industrial and EV applications demanding strict safety compliance.
Availability
ADUM261N1BRIZ-RL is available at Aetrix Electronics and suitable for industrial motor drives, programmable logic controllers, and automotive battery management systems requiring stable component supply, long-term lifecycle support, and certified reinforced isolation.
Supply support for ADUM261N1BRIZ-RL 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, serving industrial, automotive, communications, and healthcare markets.
The ADuM26xN family was designed specifically for high-reliability, multi-channel digital isolation in safety-critical systems-emphasizing low propagation delay, high CMTI, and regulatory compliance for industrial automation and electric vehicle subsystems.
FAQ
What does the "N1" suffix indicate in ADUM261N1BRIZ-RL?
The "N1" suffix specifies the fail-safe output configuration: when either VDD1 or VDD2 is unpowered, all six outputs default to logic high. This behavior is confirmed in the datasheet's Truth Table and Functional Block Diagram sections and distinguishes ADUM261N1BRIZ-RL from the N0 variant (fail-safe low). The N1 setting is essential for systems where an active-high enable signal must remain asserted during power sequencing faults.
Does ADUM261N1BRIZ-RL support bidirectional communication on any channel?
No. ADUM261N1BRIZ-RL provides six unidirectional channels only - three input-to-output (INA→OUTA, INB→OUTB, INC→OUTC) and three output-to-input (IND→OUTD, INE→OUTE, INF→OUTF) - as shown in Figure 2 of the datasheet. Bidirectional signaling requires external direction-control logic or a separate isolator like the ADuM260N series, which offers configurable channel directionality.
What is the maximum continuous working voltage supported by ADUM261N1BRIZ-RL?
ADUM261N1BRIZ-RL supports a maximum continuous working voltage (VIOWM) of 600 VRMS, as specified in Table 12 under DIN EN IEC 60747-17 (VDE 0884-17). This value applies to reinforced insulation in pollution degree 2 environments at altitudes ≤2000 m and defines the upper limit for sustained AC or DC voltage across the isolation barrier in end-equipment design.
Can ADUM261N1BRIZ-RL operate with different supply voltages on each side?
Yes. ADUM261N1BRIZ-RL supports independent supply voltages from 1.7 V to 5.5 V on VDD1 and VDD2, enabling true level translation - for example, 1.8 V MCU I/O to 5 V ADC interface. This capability is explicitly verified in the Recommended Operating Conditions (Table 13) and Electrical Characteristics tables across 1.8 V, 2.5 V, 3.3 V, and 5 V operation modes.
Is ADUM261N1BRIZ-RL pin-compatible with other ADuM26xN variants?
Yes. All ADuM260N/ADuM261N/ADuM262N/ADuM263N devices share identical 16-lead SOIC_IC (RI-16) packaging and pinout, including ADUM261N1BRIZ-RL. Channel count, directionality, and fail-safe behavior differ by part number, but PCB layout and footprint are fully interchangeable - allowing design reuse across functional variants without layout changes.
ADUM261N1BRIZ-RL Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc.
- Series:
- iCoupler®
- Package/Case:
- 16-SOIC (0.295", 7.50mm Width)
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Technology:
- Magnetic Coupling
- Type:
- General Purpose
- Isolated Power:
- No
- Number of Channels:
- 6
- Inputs - Side 1/Side 2:
- 5/1
- Channel Type:
- Unidirectional
- Voltage - Isolation:
- 5000Vrms
- Common Mode Transient Immunity (Min):
- 75kV/µs
- Data Rate:
- 150Mbps
- Propagation Delay tpLH / tpHL (Max):
- 13ns, 13ns
- Pulse Width Distortion (Max):
- 4.5ns
- Rise / Fall Time (Typ):
- 2.5ns, 2.5ns
- Voltage - Supply:
- 1.7V ~ 5.5V
- Grade:
- -
- Qualification:
- -
- Operating Temperature:
- -40°C ~ 125°C
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 16-SOIC
ADUM261N1BRIZ-RL FAQ
1.How can I place an order for ADUM261N1BRIZ-RL through Aetrix?
Please submit a Request for Quotation (RFQ) for ADUM261N1BRIZ-RL 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 ADUM261N1BRIZ-RL reliable?
The price and inventory of ADUM261N1BRIZ-RL are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ADUM261N1BRIZ-RL is usually 5 days.
3.What payment methods are accepted for ADUM261N1BRIZ-RL?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ADUM261N1BRIZ-RL transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for ADUM261N1BRIZ-RL?
ADUM261N1BRIZ-RL orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your ADUM261N1BRIZ-RL 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 ADUM261N1BRIZ-RL?
For technical support, including ADUM261N1BRIZ-RL datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ADUM261N1BRIZ-RL requirements.
6.How does Aetrix verify that ADUM261N1BRIZ-RL is sourced from the original manufacturer or authorized distributors?
All ADUM261N1BRIZ-RL 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 ADUM261N1BRIZ-RL meets industry standards.
7.What is the process for return or replacement of ADUM261N1BRIZ-RL?
All ADUM261N1BRIZ-RL units undergo pre-shipment inspection (PSI). If there is an issue with ADUM261N1BRIZ-RL, 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 ADUM261N1BRIZ-RL part is unused and in its original packaging.
Return procedure for ADUM261N1BRIZ-RL:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
ADUM261N1BRIZ-RL Tags
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ISO1212DBQR
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SI8710AC-B-ISR
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ISO7720FDR
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ISO6741FQDWRQ1
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ISO7721DWVR
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ISO7762FDBQR
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ISO7741FDWR
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