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Analog Devices Inc. ADUM1310BRWZ
- Part No.:
- ADUM1310BRWZ
- Manufacturer:
- Analog Devices Inc.
- Category:
- Digital Isolators
- Package:
- 16-SOIC (0.295", 7.50mm Width)
- Datasheet:
-
ADUM1310BRWZ.pdf
- Description:
- DGTL ISO 3750VRMS 3CH GP 16SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:4,390
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Product details
Overview
ADUM1310BRWZ from Analog Devices is a triple-channel, unidirectional digital isolator based on iCoupler® transformer technology, delivering 10 Mbps data rate, <20 ns propagation delay, and 5 ns pulse width distortion in a 16-lead SOIC wide-body package. It enables robust galvanic isolation for SPI bus segments, RS-485 transceiver control lines, and industrial I/O modules operating across 2.7 V to 5.5 V supply rails.
For engineers reviewing the ADUM1310BRWZ datasheet, ADUM1310BRWZ pinout, ADUM1310BRWZ application, or ADUM1310BRWZ equivalent, this page provides verified electrical specifications, channel directionality confirmation (A/B/C inputs on Side 1, outputs on Side 2), safety certification details (UL 2500 Vrms, VDE 0884-17 VIORM = 560 Vpeak), and real-world design implications of its programmable default output state and refresh feature.
Technical Context
The ADUM1310BRWZ implements three independent unidirectional isolation channels using monolithic air-core transformers-eliminating LED/photodiode aging and CTR drift inherent in optocouplers. Its architecture supports mixed-voltage operation (e.g., 5 V logic on Side 1, 3 V logic on Side 2) with guaranteed level translation and Schmitt-trigger inputs for noise immunity.
It features a patented refresh circuit ensuring DC-correct output states during power-up, power-down, or absence of input transitions-critical for fail-safe industrial control. The device maintains <30 ns propagation delay skew between codirectional channels and >25 kV/μs common-mode transient immunity, meeting stringent requirements for motor drive gate driver interfaces and isolated ADC front-ends.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Max Data Rate | 10 Mbps (NRZ) - supports full-speed SPI clocking up to 5 MHz with guaranteed timing margins |
| Propagation Delay | 20–50 ns - enables tight-tolerance timing in closed-loop feedback paths and encoder interfaces |
| Pulse Width Distortion | 5 ns - preserves signal integrity for high-resolution PWM edge placement and time-of-flight measurements |
| Common-Mode Transient Immunity | >25 kV/μs - sustains reliable operation in noisy motor drive and inverter environments |
| Isolation Voltage | 2500 Vrms (1 min) - certified for reinforced insulation per UL 1577 and IEC/EN/CSA 62368-1 |
| Supply Range | 2.7 V to 5.5 V per side - allows direct interfacing with 3.3 V microcontrollers and 5 V legacy peripherals |
| VIORM | 560 Vpeak - meets creepage/clearance requirements for medical (IEC 60601-1) and test equipment applications |
Pinout & Package
ADUM1310BRWZ uses a 16-lead, RoHS-compliant, wide-body SOIC package (SOIC_W) with 8.1 mm external creepage. Pin 1–8 form the input-side (Side 1) terminal group; pins 9–16 form the output-side (Side 2) terminal group. The package supports surface-mount reflow and meets IPC/JEDEC J-STD-020 moisture sensitivity level 3.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD1 | Input-Side Power Supply | Supplies power to input-side logic and transformers; accepts 2.7–5.5 V |
| GND1 | Input-Side Ground Reference | Reference for all Side 1 signals; must be isolated from GND2 |
| INA, INB, INC | Digital Input Channels A/B/C | Unidirectional CMOS-compatible inputs with Schmitt-trigger thresholds |
| CTRL1, CTRL2 | Output Default State Control | Set high/low to define output state (high/low) when VDD1 is absent |
| DISABLE | Input Enable/Disable Control | Active-low; disables input sampling and forces outputs to programmed default state |
| VDD2 | Output-Side Power Supply | Supplies output drivers and logic; independent 2.7–5.5 V rail |
| GND2 | Output-Side Ground Reference | Reference for all Side 2 signals; galvanically isolated from GND1 |
| OUTA, OUTB, OUTC | Digital Output Channels A/B/C | CMOS-compatible outputs with rail-to-rail swing and 4 mA drive capability |
Key Features
| Feature | Design Value |
|---|---|
| Programmable Default Output State | CTRL1/CTRL2 pins allow deterministic high/low output behavior during VDD1 loss-enabling safe shutdown in PLC backplane modules |
| iCoupler® Refresh Circuit | Maintains correct DC output levels without input transitions-critical for isolated watchdog timers and fault-monitoring circuits |
| 3 V/5 V Level Translation | Supports bidirectional voltage domain bridging (e.g., 3.3 V MCU ↔ 5 V sensor interface) without external level shifters |
| High-Temp Operation | Rated for continuous operation at 105°C ambient-suitable for enclosed industrial drives and solar inverters |
| Low-Power Quiescent Current | 1.2 mA total at 3 V/3 V operation (DC–2 Mbps)-reduces thermal load in dense I/O subsystems |
Applications
| SPI Isolation | RS-485 Transceiver Control |
|---|---|
Use Scenario: Isolating MOSI, MISO, and SCLK lines between an ARM Cortex-M7 microcontroller and isolated ADC/DAC in a high-noise motor control cabinet. IC Role / Device Role / Timing Role: Unidirectional isolator providing galvanic separation while preserving sub-50 ns timing alignment between clock and data edges. Use Value: Eliminates ground loop-induced sampling errors and prevents latch-up during ESD events on field wiring. | Use Scenario: Isolating DE (driver enable), RE (receiver enable), and RO (receiver output) control signals in a DIN-rail-mounted RS-485 node connected to factory floor networks. IC Role / Device Role / Timing Role: Three-channel unidirectional isolator enabling independent control of transceiver direction and data flow across isolation barrier. Use Value: Prevents bus contention during hot-plug events and ensures clean enable/disable sequencing under fast common-mode transients. |
| Industrial Fieldbus I/O Module | Medical Sensor Interface |
Use Scenario: Providing isolated digital inputs for 24 V DC field sensors and isolated outputs for solenoid drivers in a modular PLC I/O base. IC Role / Device Role / Timing Role: Signal-level isolator translating 24 V sensor status into 3.3 V logic while maintaining <100 ns channel-to-channel skew. Use Value: Enables deterministic scan-cycle timing and eliminates cross-talk between adjacent I/O channels during rapid switching. | Use Scenario: Isolating analog front-end control lines (e.g., gain select, filter bypass, calibration enable) in a Class II medical ECG amplifier module. IC Role / Device Role / Timing Role: Reinforced-isolation barrier for low-power, low-noise digital control signals requiring 560 Vpeak working voltage compliance. Use Value: Meets IEC 60601-1 creepage requirements without additional isolation components, reducing BOM count and layout area. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar digital isolator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SI8630BB-B-IS | Capacitive isolation; 10 Mbps; 3-channel unidirectional; 2.5–5.5 V supply; no programmable default state | Lacks CTRL1/CTRL2 pins-requires external pull-up/down for fail-safe output behavior during power loss | Preferred where lower cost and smaller footprint (SOIC-16 NB) outweigh need for deterministic power-loss behavior |
| ISO7730FDWR | Capacitive isolation; 10 Mbps; 3-channel unidirectional; 1.71–5.5 V supply; integrated noise filter | No refresh circuit-outputs may drift during extended DC input periods; higher quiescent current at 3 V | Selected when system-level EMC filtering is prioritized over guaranteed DC correctness during idle states |
Compared with SI8630BB-B-IS and ISO7730FDWR, ADUM1310BRWZ uniquely combines programmable default outputs, iCoupler refresh assurance, and VDE 0884-17 certification-making it the only option among the three qualified for safety-critical medical and industrial control applications requiring fail-safe behavior during brownout conditions.
Availability
ADUM1310BRWZ is available at Aetrix Electronics and suitable for industrial automation, medical instrumentation, and energy infrastructure projects requiring stable component supply, long-term lifecycle support, and traceable sourcing from authorized channels.
Supply support for ADUM1310BRWZ 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 ADuM1310/ADuM1311 product line was designed specifically to replace optocouplers in multichannel isolation applications-delivering superior reliability, lower power, and higher integration density through proprietary iCoupler® transformer technology.
FAQ
What is the maximum data rate supported by ADUM1310BRWZ?
The ADUM1310BRWZ supports a maximum data rate of 10 Mbps (NRZ) with guaranteed pulse width distortion ≤5 ns. This specification applies only to the BRWZ grade and is validated under CL = 15 pF, CMOS signal levels, and recommended operating conditions. At lower rates (≤2 Mbps), supply current drops significantly-enabling ultra-low-power operation in battery-backed systems. The ADUM1310BRWZ achieves this performance without external components, unlike optocoupler-based solutions that require driver compensation.
Does ADUM1310BRWZ support bidirectional communication?
No, ADUM1310BRWZ is a unidirectional isolator: inputs INA/INB/INC reside exclusively on Side 1 (VDD1/GND1), and outputs OUTA/OUTB/OUTC reside exclusively on Side 2 (VDD2/GND2). Bidirectional functionality requires separate forward and reverse channels-such as pairing ADUM1310BRWZ with ADUM1311BRWZ or selecting a dedicated bidirectional variant like ADUM1301. This unidirectional architecture minimizes propagation delay skew and simplifies PCB routing in SPI and RS-485 control applications.
What safety certifications does ADUM1310BRWZ hold?
ADUM1310BRWZ is certified to UL 1577 (2500 Vrms for 1 minute), DIN EN IEC 60747-17 (VDE 0884-17) with VIORM = 560 Vpeak, IEC/EN/CSA 62368-1, EN 60950-1, IEC/CSA 60601-1 (medical), and IEC/CSA 61010-1 (test equipment). These approvals validate its suitability for reinforced insulation in safety-critical systems. Certification test reports are available directly from Analog Devices' quality portal and include full creepage (8.1 mm), clearance, and partial discharge validation per VDE 0884-17 Annex A.
How does the programmable default output state work on ADUM1310BRWZ?
ADUM1310BRWZ uses CTRL1 and CTRL2 pins to set the output state (high, low, or high-impedance) when VDD1 is absent or during power-up. With CTRL1 = low and CTRL2 = high, all outputs default to logic high; with CTRL1 = high and CTRL2 = low, they default to logic low. This behavior is hardware-defined and requires no firmware configuration. It ensures predictable system behavior during brownout or hot-swap events-critical for preventing unintended actuator activation in industrial safety circuits.
Can ADUM1310BRWZ operate with different supply voltages on each side?
Yes, ADUM1310BRWZ supports mixed-supply operation: VDD1 and VDD2 can independently range from 2.7 V to 5.5 V, enabling true 3 V/5 V level translation across the isolation barrier. For example, it can accept 3.3 V logic from a microcontroller on Side 1 while driving 5 V logic on Side 2 for legacy peripherals-without external level shifters. This capability is verified across all operating modes (5 V/3 V and 3 V/5 V) and maintains full 10 Mbps data rate and timing specifications.
ADUM1310BRWZ 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:
- 3
- Inputs - Side 1/Side 2:
- 3/0
- Channel Type:
- Unidirectional
- Voltage - Isolation:
- 3750Vrms
- Common Mode Transient Immunity (Min):
- 25kV/µs
- Data Rate:
- 10Mbps
- Propagation Delay tpLH / tpHL (Max):
- 50ns, 50ns
- Pulse Width Distortion (Max):
- 5ns
- 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
ADUM1310BRWZ FAQ
1.How can I place an order for ADUM1310BRWZ through Aetrix?
Please submit a Request for Quotation (RFQ) for ADUM1310BRWZ 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 ADUM1310BRWZ reliable?
The price and inventory of ADUM1310BRWZ are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ADUM1310BRWZ is usually 5 days.
3.What payment methods are accepted for ADUM1310BRWZ?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ADUM1310BRWZ transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for ADUM1310BRWZ?
ADUM1310BRWZ orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your ADUM1310BRWZ 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 ADUM1310BRWZ?
For technical support, including ADUM1310BRWZ datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ADUM1310BRWZ requirements.
6.How does Aetrix verify that ADUM1310BRWZ is sourced from the original manufacturer or authorized distributors?
All ADUM1310BRWZ 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 ADUM1310BRWZ meets industry standards.
7.What is the process for return or replacement of ADUM1310BRWZ?
All ADUM1310BRWZ units undergo pre-shipment inspection (PSI). If there is an issue with ADUM1310BRWZ, 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 ADUM1310BRWZ part is unused and in its original packaging.
Return procedure for ADUM1310BRWZ:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
ADUM1310BRWZ Tags
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