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Analog Devices Inc./Maxim Integrated MAX14930DAWE+T
- Part No.:
- MAX14930DAWE+T
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Digital Isolators
- Package:
- 16-SOIC (0.295", 7.50mm Width)
- Datasheet:
-
MAX14930DAWE+T.pdf
- Description:
- DGTL ISO 2750VRMS 4CH GP 16SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:2,222
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Product details
Overview
MAX14930DAWE+T from Analog Devices is a 4-channel, unidirectional digital isolator with 2.75kVRMS galvanic isolation, 1Mbps data rate, and default-low output configuration in a 16-pin wide-body SOIC package (10.3mm × 7.5mm). It supports independent 1.71V–5.5V supplies on both sides, operates from –40°C to +125°C, and delivers robust common-mode transient immunity of 25kV/µs - ideal for isolated SPI and industrial I/O interfaces.
For engineers reviewing the MAX14930DAWE+T datasheet, MAX14930DAWE+T pinout, MAX14930DAWE+T application, or MAX14930DAWE+T equivalent, this device is selected for high-reliability multichannel isolation where safety-rated working voltage (443VRMS), low power at 1Mbps (≤2.6mA per channel @3.3V), and UL/VDE-certified basic insulation are mandatory design requirements.
Technical Context
The MAX14930DAWE+T implements capacitive isolation using Maxim's proprietary process, enabling signal transfer across galvanically separated domains without magnetic or optical coupling. Its four unidirectional channels (A→B only) support fixed directionality optimized for master-slave protocols like SPI and RS-232, with separate enable inputs (ENA/ENB) for side-specific output control.
It features dual supply domains (VDDA/GNDA and VDDB/GNDB), undervoltage lockout (1.45V–1.71V threshold), and failsafe default-low outputs when input is unpowered. The device meets IEC 61000-4-5 ±10kV surge immunity and is certified to UL1577, cUL, and VDE 0884-11 Basic Insulation standards.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Isolation Rating (VISO) | 2750VRMS for 60s - certifies safe operation under sustained high-voltage stress in industrial environments |
| Working Voltage (VIOWM) | 443VRMS continuous - defines maximum steady-state AC voltage across isolation barrier |
| Data Rate | 1Mbps - supports legacy industrial serial buses (e.g., slow SPI, Modbus RTU) with timing margin |
| Supply Range | 1.71V–5.5V per side - enables level translation between 1.8V microcontrollers and 3.3V/5V peripherals |
| CMTI | 25kV/µs - ensures reliable operation in noisy motor drives or power converters with fast transients |
| Propagation Delay | 38.2–58.4ns (varies with supply) - guarantees sub-60ns latency critical for real-time control loops |
| Default Output State | Low - prevents unintended activation of downstream logic during power-up or fault conditions |
Pinout & Package
Package: 16-pin wide-body SOIC (10.3mm × 7.5mm), creepage/clearance ≥8mm, RoHS-compliant (W16M+8).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| INA1–INA4 | Primary-side digital inputs | Accept CMOS/LVTTL signals referenced to GNDA; drive isolated outputs OUTB1–OUTB4 |
| INB1–INB4 | Secondary-side digital inputs | Not present on MAX14930DAWE+T - this variant has A→B unidirectional topology only |
| OUTA1–OUTA4 | Primary-side outputs | Not present - MAX14930DAWE+T has no B→A channels; outputs only on side B |
| OUTB1–OUTB4 | Isolated secondary-side outputs | CMOS-compatible outputs referenced to GNDB; default-low when INAx is floating or unpowered |
| VDDA / GNDA | Primary-side power/ground | Supplies input side and internal isolation circuitry; independent of VDDB/GNDB domain |
| VDDB / GNDB | Secondary-side power/ground | Supplies output drivers; enables true galvanic separation and level-shifting capability |
| ENA | Primary-side output enable | Active-high; disables all OUTBx outputs when low (high-impedance state) |
| ENB | Secondary-side output enable | Active-high; redundant enable for OUTBx - tied to VDDB if unused |
Key Features
| Feature | Design Value |
|---|---|
| 2.75kVRMS isolation rating | Meets reinforced insulation requirements for industrial safety standards (IEC 61010-1, IEC 60601-1) |
| 1.71V–5.5V dual-supply operation | Eliminates external level shifters when interfacing mixed-voltage systems (e.g., 1.8V FPGA to 5V sensor) |
| Default-low output behavior | Prevents spurious activation of actuators or communication lines during power sequencing or brownout |
| ±10kV surge immunity (IEC 61000-4-5) | Withstands lightning-induced transients in fieldbus installations without external protection components |
| 25kV/µs CMTI | Maintains signal integrity in high-noise environments such as variable-frequency drives and PLC backplanes |
| –40°C to +125°C operating range | Supports deployment in under-hood automotive, solar inverters, and industrial motor controls |
Applications
| Industrial SPI Isolation | Isolated RS-232 Interface |
|---|---|
Use Scenario: Isolating SPI bus between a host MCU and isolated ADC/DAC in a programmable logic controller (PLC) rack. IC Role / Device Role / Timing Role: Unidirectional A→B isolator for SCLK, MOSI, and chip-select lines; provides timing-critical signal transfer with ≤58.4ns propagation delay. Use Value: Prevents ground-loop noise from corrupting analog measurements while maintaining full 1Mbps SPI throughput. |
Use Scenario: Adding galvanic isolation to an RS-232 port in medical diagnostic equipment to meet IEC 60601-1 patient safety requirements. IC Role / Device Role / Timing Role: Isolates TX, RX, RTS, and CTS signals between UART and line driver/receiver ICs. Use Value: Enables 443VRMS working voltage compliance and eliminates risk of hazardous leakage current to patient-connected circuits. |
| Battery Management System (BMS) | Motor Drive Feedback Isolation |
Use Scenario: Isolating cell-monitoring IC communications in a high-voltage EV battery pack (up to 800V DC bus). IC Role / Device Role / Timing Role: Transfers voltage/current telemetry from isolated slave controllers to central BMS MCU via daisy-chained SPI. Use Value: Provides 2750VRMS withstand voltage and 8mm creepage to safely bridge potential differences across series-connected battery modules. |
Use Scenario: Isolating encoder or resolver feedback signals from motor phase current sensing in industrial servo drives. IC Role / Device Role / Timing Role: Carries position/speed data from isolated feedback sensors to motion controller while rejecting PWM switching noise. Use Value: 25kV/µs CMTI prevents data corruption during 20kHz IGBT switching, ensuring precise closed-loop control. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar digital isolator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SI8640ED-B-IS | 4-channel, 1Mbps, 2.5kVRMS isolation; 16-pin narrow SOIC (9.9mm × 3.9mm); default-high outputs | Smaller footprint but lower isolation rating; lacks VDE 0884-11 certification | Select when board space is constrained and 2.5kVRMS suffices; verify default-high behavior matches system reset logic. |
| ADUM1400ARWZ | 4-channel, 1Mbps, 2.5kVRMS; 16-pin wide SOIC; default-low outputs; uses iCoupler® magnetic isolation | Different isolation technology (magnetic vs. capacitive); higher CMTI (50kV/µs); no UL1577 certification | Choose for ultra-high-noise environments requiring >25kV/µs CMTI; confirm magnetic coupling compatibility with nearby inductors. |
Compared with SI8640ED-B-IS and ADUM1400ARWZ, the MAX14930DAWE+T offers superior safety certification (VDE 0884-11 + UL1577), higher 2.75kVRMS isolation, and guaranteed 443VRMS working voltage - making it preferred for medical and industrial safety-critical designs where regulatory audit readiness is essential.
Availability
MAX14930DAWE+T is available at Aetrix Electronics and suitable for industrial automation, battery management, and medical diagnostics requiring stable component supply, long-term lifecycle support, and traceable sourcing.
Supply support for MAX14930DAWE+T 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 technologies, serving industrial, automotive, communications, and healthcare markets.
The MAX14930DAWE+T belongs to the MAX14930–MAX14932 family of high-isolation digital isolators designed specifically for safety-critical industrial and medical systems demanding certified 2.75kVRMS reinforcement and extended temperature operation.
FAQ
What is the isolation voltage rating of the MAX14930DAWE+T?
The MAX14930DAWE+T is rated for 2750VRMS isolation voltage (VISO) for 60 seconds per UL1577 and VDE 0884-11. It also supports 443VRMS continuous working voltage (VIOWM) and 630VPK repetitive peak voltage (VIORM), meeting reinforced insulation requirements for industrial and medical applications.
Does the MAX14930DAWE+T support bidirectional communication?
No, the MAX14930DAWE+T is a unidirectional isolator with four A→B channels only (INA1–INA4 to OUTB1–OUTB4). For bidirectional applications like I²C, Analog Devices recommends the MAX14933 family instead.
What is the default output state of the MAX14930DAWE+T?
The MAX14930DAWE+T has a default-low output configuration: when any INAx input is unpowered or floating, the corresponding OUTBx output drives low. This behavior is confirmed by the "DA" suffix in the part number and prevents undefined states during power-up or fault conditions.
Can the MAX14930DAWE+T operate with different supply voltages on each side?
Yes, the MAX14930DAWE+T supports independent 1.71V–5.5V supplies on VDDA/GNDA and VDDB/GNDB. This allows level translation between, for example, a 1.8V FPGA core and a 3.3V isolated peripheral - a key feature for modern mixed-voltage system design.
Which safety certifications does the MAX14930DAWE+T hold?
The MAX14930DAWE+T is certified to UL1577 (file E351759), CSA C22.2 No. 5A (cUL), and VDE 0884-11:2017-01 for Basic Insulation. It also meets IEC 61000-4-5 (±10kV surge) and IEC 61010-1/60601-1 working voltage requirements up to 443VRMS.
MAX14930DAWE+T Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Series:
- -
- Package/Case:
- 16-SOIC (0.295", 7.50mm Width)
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Technology:
- Capacitive Coupling
- Type:
- General Purpose
- Isolated Power:
- No
- Number of Channels:
- 4
- Inputs - Side 1/Side 2:
- 4/0
- Channel Type:
- Unidirectional
- Voltage - Isolation:
- 2750Vrms
- Common Mode Transient Immunity (Min):
- 25kV/µs (Typ)
- Data Rate:
- 1Mbps
- Propagation Delay tpLH / tpHL (Max):
- 54.1ns, 55.3ns
- Pulse Width Distortion (Max):
- 4.5ns
- Rise / Fall Time (Typ):
- 2ns, 2ns
- Voltage - Supply:
- 1.71V ~ 5.5V
- Grade:
- -
- Qualification:
- -
- Operating Temperature:
- -40°C ~ 125°C
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 16-SOIC
MAX14930DAWE+T FAQ
1.How can I place an order for MAX14930DAWE+T through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX14930DAWE+T 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 MAX14930DAWE+T reliable?
The price and inventory of MAX14930DAWE+T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX14930DAWE+T is usually 5 days.
3.What payment methods are accepted for MAX14930DAWE+T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX14930DAWE+T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX14930DAWE+T?
MAX14930DAWE+T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX14930DAWE+T 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 MAX14930DAWE+T?
For technical support, including MAX14930DAWE+T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX14930DAWE+T requirements.
6.How does Aetrix verify that MAX14930DAWE+T is sourced from the original manufacturer or authorized distributors?
All MAX14930DAWE+T 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 MAX14930DAWE+T meets industry standards.
7.What is the process for return or replacement of MAX14930DAWE+T?
All MAX14930DAWE+T units undergo pre-shipment inspection (PSI). If there is an issue with MAX14930DAWE+T, 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 MAX14930DAWE+T part is unused and in its original packaging.
Return procedure for MAX14930DAWE+T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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