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Analog Devices Inc. ADUM131D0BRZ-RL7
- Part No.:
- ADUM131D0BRZ-RL7
- Manufacturer:
- Analog Devices Inc.
- Category:
- Digital Isolators
- Package:
- 16-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
ADUM131D0BRZ-RL7.pdf
- Description:
- DGTL ISO 3000VRMS 3CH GP 16SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:1,868
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Product details
Overview
ADUM131D0BRZ-RL7 from Analog Devices is a triple-channel digital isolator based on iCoupler® transformer technology, providing reinforced galvanic isolation for high-noise industrial interfaces. It delivers 150 Mbps data rate, 13 ns max propagation delay at 5 V, 100 kV/µs common-mode transient immunity, and operates across 1.8 V to 5 V supply rails. It is used in SPI isolation between microcontrollers and isolated ADCs in motor drive control systems.
For engineers reviewing the ADUM131D0BRZ-RL7 datasheet, ADUM131D0BRZ-RL7 pinout, ADUM131D0BRZ-RL7 application, or ADUM131D0BRZ-RL7 equivalent, key selection criteria include reinforced 3.0 kVRMS isolation rating (R-16 SOIC_N), fail-safe low output state, and compatibility with 1.8 V logic on either side of the barrier.
Technical Context
The ADUM131D0BRZ-RL7 implements three independent unidirectional isolation channels using monolithic air-core transformers and integrated CMOS interface circuitry. Its architecture ensures DC-correct output states without input transitions and supports configurable disable/fail-safe behavior via dedicated control pins.
It features tight channel matching (≤3.0 ns codirectional skew), low jitter (90 ps RMS at 1.8 V), and robust noise rejection validated per DIN EN IEC 60747-17 (VDE 0884-17) for reinforced insulation. The device is rated for continuous operation up to +125°C ambient temperature.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Data Rate | 150 Mbps maximum - guarantees reliable high-speed SPI/Clock forwarding without bit errors under worst-case timing margins |
| Propagation Delay | 13 ns max at 5 V - enables sub-20 ns round-trip latency in closed-loop feedback paths |
| Common-Mode Transient Immunity | 100 kV/µs - maintains signal integrity during fast-switching IGBT gate driver transients in inverters |
| Isolation Rating | 3000 VRMS for 1 minute (R-16 SOIC_N) - meets reinforced insulation requirements for IEC 61800-5-1 motor drives |
| Supply Voltage Range | 1.8 V to 5 V on both sides - allows direct interfacing with low-voltage MCUs and legacy 3.3 V/5 V peripherals |
| Fail-Safe Output State | Low - ensures default-safe shutdown of downstream power stages when primary-side power fails |
| Operating Temperature | −40°C to +125°C - supports deployment in under-hood automotive ECUs and industrial PLC backplanes |
Pinout & Package
ADUM131D0BRZ-RL7 is housed in a 16-lead, RoHS-compliant R-16 narrow-body SOIC package (SOIC_N), with 4.0 mm minimum creepage/clearance and reinforced insulation structure.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD1 | Primary-side power supply | Accepts 1.8–5 V; powers input-side logic and transformer driver |
| GND1 | Primary-side ground reference | Return path for VDD1; must be isolated from secondary ground |
| INA, INB, INC | Input data channels A/B/C | CMOS-compatible inputs; accept 1.8–5 V logic levels regardless of VDD1/VDD2 |
| DISABLE1 | Primary-side enable/disable control | Pull-high to disable all outputs; internal 15 µA pull-down ensures safe default |
| VDD2 | Secondary-side power supply | Accepts 1.8–5 V; powers output-side logic and receiver circuitry |
| GND2 | Secondary-side ground reference | Return path for VDD2; galvanically isolated from GND1 |
| OUTA, OUTB, OUTC | Isolated output data channels A/B/C | CMOS outputs with fail-safe low state when DISABLE1 active or VDD1 absent |
| VE2 | Secondary-side enable control | Pull-low to tri-state outputs; internal 3 µA pull-up ensures enabled-by-default operation |
Key Features
| Feature | Design Value |
|---|---|
| Reinforced 3.0 kVRMS isolation | Meets IEC 60601-1 (2 MOPP) and IEC 61010-1 for medical and test equipment safety compliance |
| 1.8 V to 5 V level translation | Enables seamless interconnection between ultra-low-power sensors (1.8 V) and industrial PLC CPUs (5 V) |
| Fail-safe low output configuration | Guarantees deactivation of gate drivers or fault latches during power loss or brownout conditions |
| 100 kV/µs CMTI | Prevents metastability or false triggering in variable-frequency drives exposed to >1 kV switching noise |
| −40°C to +125°C operation | Supports placement directly adjacent to power modules without external heatsinking or derating |
Applications
| Motor Drive Feedback Isolation | SPI Interface Isolation |
|---|---|
Use Scenario: Isolating encoder position signals and current-sense ADC outputs from the MCU in a 3-phase inverter. IC Role / Device Role / Timing Role: Provides galvanically isolated, low-latency transmission of real-time rotor position and phase current data across the high-voltage barrier. Use Value: Enables precise field-oriented control (FOC) with <13 ns timing uncertainty, preventing torque ripple caused by synchronization drift. |
Use Scenario: Isolating SPI communication between an ARM Cortex-M7 host and isolated precision ADCs (e.g., AD7403) in energy metering. IC Role / Device Role / Timing Role: Acts as a 3-channel unidirectional SPI data isolator (SCLK, MOSI, MISO), preserving full 150 Mbps throughput. Use Value: Maintains deterministic SPI timing while blocking ground loops and conducted EMI that would corrupt 24-bit conversion results. |
| Industrial Fieldbus Node Isolation | Programmable Logic Controller (PLC) Digital I/O |
Use Scenario: Isolating RS-485 transceiver control lines (DE/RE) and status signals in PROFIBUS DP slave nodes. IC Role / Device Role / Timing Role: Delivers fail-safe low outputs to disable bus drivers during power faults, preventing bus contention. Use Value: Ensures protocol-level reliability by eliminating spurious bus activation during brownouts or hot-swap events. |
Use Scenario: Isolating 24 V DC digital input sensing and 24 V DC output switching circuits in modular PLC I/O modules. IC Role / Device Role / Timing Role: Translates 24 V field-side logic to 3.3 V controller-side logic while blocking surge transients from solenoid loads. Use Value: Achieves >4 kV surge immunity (IEC 61000-4-5) without external TVS diodes or optocoupler latency penalties. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar digital isolator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ADUM131D1BRZ-RL7 | Fail-safe output state is high (not low); otherwise identical pinout, specs, and package | Required where downstream logic expects active-high enable or reset assertion on power loss | Select ADUM131D1BRZ-RL7 only if system-level fail-safe behavior mandates high output default |
| SI8630BB-B-IS | Capacitive isolation; 3.75 kVRMS rating (RW-16 SOIC_W); 150 Mbps; no built-in disable control | Requires external pull-up/down resistors for fail-safe behavior; wider 7.8 mm creepage suits higher pollution degree environments | Choose SI8630BB-B-IS when extended creepage (>7 mm) or UL 62368-1 certification is mandatory |
Compared with ADUM131D0BRZ-RL7, ADUM131D1BRZ-RL7 provides inverted fail-safe polarity but identical performance, while SI8630BB-B-IS offers higher isolation voltage in a wider package but lacks integrated disable functionality-requiring external components for safe power-loss response.
Availability
ADUM131D0BRZ-RL7 is available at Aetrix Electronics and suitable for industrial motor drives, energy metering systems, and programmable logic controller (PLC) modules requiring stable component supply, long-term lifecycle support, and certified reinforced isolation.
Supply support for ADUM131D0BRZ-RL7 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 ADuM130D/ADuM131D family was designed specifically for high-reliability, high-speed digital isolation in harsh electromagnetic environments-targeting servo drives, grid-tied inverters, and safety-critical instrumentation.
FAQ
What is the isolation voltage rating of the ADUM131D0BRZ-RL7?
The ADUM131D0BRZ-RL7 has a rated dielectric insulation voltage of 3000 VRMS for 1 minute in its R-16 narrow-body SOIC package. This rating complies with UL 1577 and DIN EN IEC 60747-17 (VDE 0884-17) for reinforced insulation, with VIORM = 565 VPEAK and working voltage VIOWM = 400 VRMS. It is certified for IEC 60601-1 (2 MOPP) and IEC 61010-1 applications.
Does the ADUM131D0BRZ-RL7 support level translation between different logic voltages?
Yes, the ADUM131D0BRZ-RL7 supports bidirectional level translation between 1.8 V, 2.5 V, 3.3 V, and 5 V logic domains on either side of the isolation barrier. Input thresholds scale with local VDD (VIH = 0.7 × VDDx), and outputs drive full rail-to-rail CMOS levels-enabling direct interfacing between low-voltage microcontrollers and legacy 5 V peripherals without external level shifters.
What is the fail-safe behavior of the ADUM131D0BRZ-RL7 when primary power is lost?
The ADUM131D0BRZ-RL7 is configured as a D0 variant, meaning its outputs default to logic low when VDD1 is absent or DISABLE1 is asserted. This fail-safe low state ensures downstream gate drivers, relays, or safety latches remain de-energized during power failure-critical for functional safety in motor control and industrial automation systems.
Can the ADUM131D0BRZ-RL7 be used in medical equipment complying with IEC 60601-1?
Yes, the ADUM131D0BRZ-RL7 is certified for reinforced insulation per IEC 60601-1 (2 Means of Patient Protection) with a 3000 VRMS withstand rating and 250 VRMS working voltage. Its R-16 SOIC package meets creepage and clearance requirements for BF-rated medical devices when properly mounted on PCBs with appropriate spacing and conformal coating.
How does the ADUM131D0BRZ-RL7 compare to optocouplers in terms of speed and reliability?
The ADUM131D0BRZ-RL7 achieves 150 Mbps data rate and 13 ns max propagation delay-over 10× faster than typical high-speed optocouplers-and eliminates LED aging, temperature drift, and CTR degradation. Its iCoupler® transformer technology provides guaranteed DC correctness, 100 kV/µs CMTI, and 50-year lifetime under rated conditions-unlike optocouplers limited to ~10 years at elevated temperatures.
ADUM131D0BRZ-RL7 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc.
- Series:
- iCoupler®
- Package/Case:
- 16-SOIC (0.154", 3.90mm Width)
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Technology:
- Magnetic Coupling
- Type:
- General Purpose
- Isolated Power:
- No
- Number of Channels:
- 3
- Inputs - Side 1/Side 2:
- 2/1
- Channel Type:
- Unidirectional
- Voltage - Isolation:
- 3000Vrms
- Common Mode Transient Immunity (Min):
- 75kV/µs
- Data Rate:
- 150Mbps
- Propagation Delay tpLH / tpHL (Max):
- 13ns, 13ns
- Pulse Width Distortion (Max):
- 3ns
- 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
ADUM131D0BRZ-RL7 FAQ
1.How can I place an order for ADUM131D0BRZ-RL7 through Aetrix?
Please submit a Request for Quotation (RFQ) for ADUM131D0BRZ-RL7 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 ADUM131D0BRZ-RL7 reliable?
The price and inventory of ADUM131D0BRZ-RL7 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ADUM131D0BRZ-RL7 is usually 5 days.
3.What payment methods are accepted for ADUM131D0BRZ-RL7?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ADUM131D0BRZ-RL7 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for ADUM131D0BRZ-RL7?
ADUM131D0BRZ-RL7 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your ADUM131D0BRZ-RL7 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 ADUM131D0BRZ-RL7?
For technical support, including ADUM131D0BRZ-RL7 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ADUM131D0BRZ-RL7 requirements.
6.How does Aetrix verify that ADUM131D0BRZ-RL7 is sourced from the original manufacturer or authorized distributors?
All ADUM131D0BRZ-RL7 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 ADUM131D0BRZ-RL7 meets industry standards.
7.What is the process for return or replacement of ADUM131D0BRZ-RL7?
All ADUM131D0BRZ-RL7 units undergo pre-shipment inspection (PSI). If there is an issue with ADUM131D0BRZ-RL7, 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 ADUM131D0BRZ-RL7 part is unused and in its original packaging.
Return procedure for ADUM131D0BRZ-RL7:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
ADUM131D0BRZ-RL7 Tags
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ISO1212DBQR
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ISO6721BDR
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SI8710AC-B-ISR
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ISO7720FDR
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ISO7721DR
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ISO7721FDR
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SI8710CC-B-ISR
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ISO6741FQDWRQ1
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ISO7721DWVR
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ISO7762FDBQR
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ISO7741DWR
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ISO7741FDWR
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