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Analog Devices Inc. ADUM3300BRWZ
- Part No.:
- ADUM3300BRWZ
- Manufacturer:
- Analog Devices Inc.
- Category:
- Digital Isolators
- Package:
- 16-SOIC (0.295", 7.50mm Width)
- Datasheet:
-
ADUM3300BRWZ.pdf
- Description:
- DGTL ISO 2500VRMS 3CH GP 16SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:288
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Product details
Overview
ADUM3300BRWZ from Analog Devices is a triple-channel, bidirectional digital isolator based on iCoupler® transformer technology, providing 2500 Vrms isolation, 10 Mbps data rate, and 3.3 V/5 V level translation across the barrier. It features 2 ns maximum pulse width distortion, 3 ns channel-to-channel matching, and operates from −40°C to +105°C for industrial SPI isolation and RS-485 transceiver interface applications.
For engineers reviewing the ADUM3300BRWZ datasheet, ADUM3300BRWZ pinout, ADUM3300BRWZ application, or ADUM3300BRWZ equivalent, this page delivers verified specifications, validated SOIC-16W package mapping, confirmed ESD-enhanced system-level reliability per IEC 61000-4-x, and real-world timing performance at 10 Mbps under mixed-supply operation.
Technical Context
The ADUM3300BRWZ implements three independent galvanically isolated signal channels using monolithic air-core transformers, eliminating optocoupler limitations like CTR drift and aging. Its patented refresh circuit ensures DC correctness during idle periods and power transitions without external components.
It supports asymmetric supply configurations (3.3 V/5 V or 5 V/3.3 V), enabling voltage translation between domains while maintaining precise timing: 20–50 ns propagation delay, ≤3 ns pulse width distortion, and >25 kV/µs common-mode transient immunity - all guaranteed at 10 Mbps operation.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Isolation Rating | 2500 Vrms for 1 minute (UL 1577); VIORM = 560 Vpeak (DIN EN IEC 60747-17) |
| Max Data Rate | 10 Mbps - guaranteed pulse width distortion ≤3 ns at CMOS loads |
| Propagation Delay | 20–50 ns - enables tight-tolerance timing in SPI clock/data paths |
| Pulse Width Distortion | ≤3 ns - preserves duty cycle integrity for high-speed control signals |
| Supply Voltage Range | 3.0–5.5 V per side - supports mixed 3.3 V/5 V domain interfacing |
| Operating Temperature | −40°C to +105°C - qualified for industrial motor drives and PLC I/O modules |
| Common-Mode Transient Immunity | >25 kV/µs - maintains signal integrity in noisy factory-floor environments |
Pinout & Package
ADUM3300BRWZ is housed in a 16-lead SOIC wide-body (SOIC_W) RoHS-compliant package with 7.5 mm creepage/clearance, optimized for reinforced isolation in industrial PCB layouts.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD1 | Primary-side power supply | Accepts 3.0–5.5 V; powers input-side logic and transformers |
| GND1 | Primary-side ground reference | Reference for inputs A, B, C and output enable OE1 |
| INA | Channel 1 input (side 1) | Unidirectional input driving isolated output OUTA |
| INB | Channel 2 input (side 1) | Unidirectional input driving isolated output OUTB |
| INC | Channel 3 input (side 1) | Unidirectional input driving isolated output OUTC |
| OE1 | Primary-side output enable | Active-low control for OUTA/OUTB/OUTC; disables outputs to high-Z |
| VDD2 | Secondary-side power supply | Accepts 3.0–5.5 V; powers output-side logic and transformers |
| GND2 | Secondary-side ground reference | Reference for outputs OUTA/OUTB/OUTC and OE2 |
| OUTA | Channel 1 output (side 2) | Isolated replica of INA; CMOS-compatible drive capability |
| OUTB | Channel 2 output (side 2) | Isolated replica of INB; matches OUTA timing within 3 ns |
| OUTC | Channel 3 output (side 2) | Isolated replica of INC; supports synchronous multi-channel protocols |
| OE2 | Secondary-side output enable | Active-low control mirroring OE1; enables cross-domain disable coordination |
| NC | No connect | Pins 1, 9 - internally unused; must remain unconnected per datasheet |
| NC | No connect | Pins 16, 8 - thermally isolated pads; not bonded to die |
Key Features
| Feature | Design Value |
|---|---|
| Enhanced system-level ESD reliability | Validated per IEC 61000-4-2/4-4/4-5 - reduces field failure risk in unshielded industrial enclosures |
| Bidirectional communication support | Configurable via OE1/OE2 - enables full-duplex isolation in RS-485 half-duplex transceivers |
| DC-correct refresh architecture | Patented internal watchdog - guarantees output state retention during static input or power sequencing |
| Low-power 10 Mbps operation | 4.1 mA/channel @ 10 Mbps (5 V), 2.8 mA/channel @ 10 Mbps (3.3 V) - cuts thermal load in dense I/O modules |
| High-temp rated isolation | 105°C ambient operation - sustains performance in motor drive gate driver stacks and solar inverters |
Applications
| SPI Interface Isolation | Data Converter Isolation |
|---|---|
Use Scenario: Isolating SPI bus between MCU (3.3 V domain) and isolated ADC/DAC (5 V domain) in precision sensor front-ends. IC Role / Device Role / Timing Role: ADUM3300BRWZ provides three synchronized, low-skew channels for SCLK, MOSI, and MISO with <3 ns pulse width distortion. Use Value: Enables accurate sampling by preserving SPI timing margins and eliminating ground-loop noise coupling into analog measurement paths. |
Use Scenario: Galvanic separation of serial interface lines between isolated sigma-delta ADCs and host processors in energy metering systems. IC Role / Device Role / Timing Role: ADUM3300BRWZ acts as a robust, low-jitter data conduit supporting 10 Mbps frame rates required for high-resolution converters. Use Value: Maintains bit-accurate data transfer across isolation barrier while meeting IEC 62053-22 EMC requirements for revenue-grade meters. |
| Industrial Fieldbus Isolation | RS-485 Transceiver Interface |
Use Scenario: Signal-level isolation in PROFIBUS DP slave nodes where controller-side logic (5 V) interfaces with field-side transceivers (3.3 V). IC Role / Device Role / Timing Role: ADUM3300BRWZ isolates DE/RE control lines and differential data pair (A/B) with matched propagation delay across all three channels. Use Value: Prevents bus lock-up during ESD events and ensures deterministic response time for cyclic PROFIBUS communication. |
Use Scenario: Isolating control and data lines between microcontroller UART and RS-485 transceiver (e.g., ADM2483) in motor control drives. IC Role / Device Role / Timing Role: ADUM3300BRWZ delivers bidirectional, low-latency isolation for TX, RX, and RE/DE signals with <50 ns total propagation skew. Use Value: Eliminates ground potential differences that cause transceiver latch-up and extends cable run length in noisy factory environments. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar digital isolator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ADUM3300ARWZ | 1 Mbps max data rate; 1000 ns min pulse width; higher PWD (40 ns); same SOIC-16W package | Targeted for low-speed control signaling (e.g., enable/disable lines), not high-speed SPI or RS-485 | Select when cost sensitivity outweighs speed need and timing budget allows ≥1000 ns pulses |
| ADUM3300CRWZ | 90 Mbps max data rate; 8.3 ns min pulse width; lower PWD (0.5 ns); identical pinout and package | Required for high-speed protocols like CAN FD, Gigabit Ethernet management, or fast SAR ADC interfaces | Choose when system demands sub-32 ns propagation delay and <2 ns PWD at full data throughput |
Compared with ADUM3300ARWZ and ADUM3300CRWZ, the ADUM3300BRWZ delivers optimal balance of speed (10 Mbps), precision (3 ns PWD), and power efficiency (4.1 mA/channel @ 10 Mbps), making it the preferred choice for mainstream industrial SPI and RS-485 isolation where cost, timing, and reliability intersect.
Availability
ADUM3300BRWZ is available at Aetrix Electronics and suitable for industrial automation, motor control, and energy metering applications requiring stable component supply, long-term lifecycle assurance, and traceable sourcing for safety-critical designs.
Supply support for ADUM3300BRWZ 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 ADUM3300BRWZ belongs to the ADuM3300/ADuM3301 family of enhanced ESD-reliability digital isolators, designed specifically for robust, high-integrity signal isolation in harsh industrial environments where system-level EMC resilience is mandatory.
FAQ
What is the maximum guaranteed data rate for ADUM3300BRWZ?
The ADUM3300BRWZ is rated for a maximum data rate of 10 Mbps, with pulse width distortion guaranteed ≤3 ns under standard test conditions (CL = 15 pF, CMOS levels). This rating applies across its full operating temperature range (−40°C to +105°C) and supply voltage range (3.0–5.5 V per side), making ADUM3300BRWZ suitable for reliable SPI and RS-485 isolation at industrial speeds.
Does ADUM3300BRWZ support level translation between 3.3 V and 5 V domains?
Yes, ADUM3300BRWZ supports true bidirectional level translation: VDD1 may be 3.3 V while VDD2 is 5 V, or vice versa. Input thresholds adapt accordingly (VIH = 2.0 V for 5 V side, 1.6 V for 3.3 V side), and output drive levels comply with respective rail voltages - enabling seamless interface between mixed-voltage subsystems without external level shifters.
What safety certifications does ADUM3300BRWZ hold?
ADUM3300BRWZ is certified to UL 1577 (2500 Vrms/1 min), DIN EN IEC 60747-17 (VDE 0884-17, VIORM = 560 Vpeak), IEC/EN/CSA 62368-1, IEC/CSA 60601-1, and IEC/CSA 61010-1. These approvals validate its suitability for reinforced insulation in medical, industrial, and test equipment where patient/operator safety and functional isolation integrity are critical.
How does the refresh feature in ADUM3300BRWZ ensure DC correctness?
The ADUM3300BRWZ incorporates a patented internal refresh circuit that periodically samples input states and retransmits them across the isolation barrier during static conditions or power transitions. This ensures output stability even with no input toggling - a key requirement for control signals in PLCs and safety interlocks where indefinite DC output retention is mandatory.
Can ADUM3300BRWZ replace optocouplers directly in existing designs?
ADUM3300BRWZ offers pin-compatible replacement for many 3-channel optocoupler-based isolation schemes in SOIC-16W footprints, but requires verification of timing margins, supply decoupling, and PCB layout per iCoupler® guidelines. Unlike optocouplers, ADUM3300BRWZ needs no external bias resistors or current-setting components - simplifying bill-of-materials and improving long-term reliability.
ADUM3300BRWZ 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:
- 2500Vrms
- Common Mode Transient Immunity (Min):
- 25kV/µs
- Data Rate:
- 10Mbps
- Propagation Delay tpLH / tpHL (Max):
- 50ns, 50ns
- Pulse Width Distortion (Max):
- 3ns
- 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
ADUM3300BRWZ FAQ
1.How can I place an order for ADUM3300BRWZ through Aetrix?
Please submit a Request for Quotation (RFQ) for ADUM3300BRWZ 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 ADUM3300BRWZ reliable?
The price and inventory of ADUM3300BRWZ are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ADUM3300BRWZ is usually 5 days.
3.What payment methods are accepted for ADUM3300BRWZ?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ADUM3300BRWZ transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for ADUM3300BRWZ?
ADUM3300BRWZ orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your ADUM3300BRWZ 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 ADUM3300BRWZ?
For technical support, including ADUM3300BRWZ datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ADUM3300BRWZ requirements.
6.How does Aetrix verify that ADUM3300BRWZ is sourced from the original manufacturer or authorized distributors?
All ADUM3300BRWZ 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 ADUM3300BRWZ meets industry standards.
7.What is the process for return or replacement of ADUM3300BRWZ?
All ADUM3300BRWZ units undergo pre-shipment inspection (PSI). If there is an issue with ADUM3300BRWZ, 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 ADUM3300BRWZ part is unused and in its original packaging.
Return procedure for ADUM3300BRWZ:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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