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Analog Devices Inc./Maxim Integrated MAX14930AAWE+
- Part No.:
- MAX14930AAWE+
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Digital Isolators
- Package:
- 16-SOIC (0.295", 7.50mm Width)
- Datasheet:
-
MAX14930AAWE+.pdf
- Description:
- DGTL ISO 2750VRMS 4CH GP 16SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:154
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Product details
Overview
MAX14930AAWE+ from Analog Devices is a 4-channel, unidirectional digital isolator with 2.75kVRMS galvanic isolation, 1Mbps data rate, default-low output configuration, and wide-body SOIC-16 (10.3mm × 7.5mm) package. It operates from 1.71V to 5.5V on both sides, supports industrial temperature range (−40°C to +125°C), and delivers robust noise immunity (25kV/µs CMTI) for isolated SPI and digital I/O in battery management systems.
For engineers reviewing the MAX14930AAWE+ datasheet, MAX14930AAWE+ pinout, MAX14930AAWE+ application, or MAX14930AAWE+ equivalent, this page provides verified electrical specs, safety-certified isolation ratings, supply-voltage flexibility, thermal derating curves, and real-world design context for high-reliability industrial and medical isolation interfaces.
Technical Context
The MAX14930AAWE+ implements capacitive isolation using Analog Devices' proprietary process, enabling signal transfer across galvanically separated domains without magnetic coupling or optoelectronic elements. Its four independent unidirectional channels support asymmetric voltage operation (e.g., 1.8V logic side / 3.3V system side) and include enable-controlled three-state outputs.
It features integrated undervoltage lockout (1.45V–1.71V threshold with 50mV hysteresis), low-glitch propagation (≤32ns rejection), and precise timing control: typical tPLH/tPHL of 54.1ns/55.3ns at 5V, pulse-width distortion <4.5ns, and channel-to-channel skew ≤6.7ns - all guaranteed over full temperature range.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Isolation Rating | 2.75kVRMS withstand (60s), 443VRMS continuous working voltage - meets UL1577, VDE 0884-11 Basic Insulation |
| Data Rate | 1Mbps maximum - suitable for low-speed isolated control, status monitoring, and legacy bus interfaces |
| Supply Range | 1.71V to 5.5V per side - enables level translation between mixed-voltage subsystems (e.g., 1.8V MCU ↔ 5V sensor) |
| Propagation Delay | 38.2–58.4ns (tPLH), 38.6–60.2ns (tPHL) - deterministic latency critical for synchronous digital handshaking |
| CMTI | 25kV/µs - ensures reliable operation in noisy motor drives and power converters with fast dv/dt transients |
| Operating Temp | −40°C to +125°C - qualified for under-hood automotive, industrial PLC, and medical equipment environments |
| Output Default | Low state when input unpowered - prevents floating outputs during power sequencing or fault conditions |
Pinout & Package
MAX14930AAWE+ uses a 16-pin wide-body SOIC package (10.3mm × 7.5mm, outline 21-0042), rated for 8mm creepage and clearance. Thermal resistance θJA = 71°C/W (four-layer board).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| INA1–INA4 | Primary-side digital inputs | Accept CMOS/TTL logic; VIH = 0.7×VDDA, VIL ≤ 0.8V - compatible with 1.8V–5.5V controllers |
| OUTB1–OUTB4 | Secondary-side isolated outputs | Push-pull drivers; VOH = VDDB − 0.4V, VOL = 0.4V @ 4mA - drive standard logic loads directly |
| ENA | Primary-side output enable | Active-high; enables/disables OUTA outputs - used for bus arbitration or power-gated isolation |
| ENB | Secondary-side output enable | Active-high; enables/disables OUTB outputs - supports bidirectional control signaling across isolation barrier |
| VDDA / GNDA | Primary-side power/ground | Independent 1.71–5.5V domain - decouples logic-side supply from isolated side |
| VDDB / GNDB | Secondary-side power/ground | Independent 1.71–5.5V domain - enables true level-shifting and fault containment |
Key Features
| Feature | Design Value |
|---|---|
| Galvanic Isolation Barrier | 2.75kVRMS rating with 630VPK repetitive peak voltage - certified to UL, VDE, and IEC 60950-1 for functional safety |
| Low-Power Operation | 1.2–1.9mA per side at 500kHz (1.8V–5V), scalable with data rate - reduces thermal load in dense PCB layouts |
| High Noise Immunity | 25kV/µs common-mode transient immunity - maintains signal integrity in EMI-heavy environments like motor drives |
| Configurable Output State | Default-low behavior on input loss - eliminates undefined states during brown-out or reset sequences |
| Wide Supply Flexibility | 1.71V–5.5V operation on both sides - supports direct interfacing with ultra-low-power MCUs and legacy 5V peripherals |
Applications
| Industrial Fieldbus Interface | Isolated SPI Communication |
|---|---|
Use Scenario: Isolating RS-485 transceivers in PLC backplanes to prevent ground loops and protect controller-side circuitry from bus faults. IC Role / Device Role / Timing Role: Unidirectional signal isolator for TX/RX lines and control signals; provides 2.75kVRMS barrier with 1Mbps throughput. Use Value: Enables safe, long-distance communication in factory automation where ESD and surge events exceed ±10kV (IEC 61000-4-5). | Use Scenario: Isolating SPI clock, MOSI, MISO, and CS lines between an MCU and isolated ADC or DAC in precision measurement systems. IC Role / Device Role / Timing Role: Four-channel unidirectional isolator with matched propagation delay (≤6.7ns skew) preserving SPI timing margins. Use Value: Maintains full-duplex SPI integrity up to 1MHz while blocking high-voltage transients from sensor front-ends. |
| Battery Management System (BMS) | Medical Patient Monitoring |
Use Scenario: Isolating cell voltage monitoring ICs and pack-level controllers in EV battery packs operating at >400V DC bus potentials. IC Role / Device Role / Timing Role: Digital isolator for status, fault, and balancing command signals; operates reliably at +125°C ambient. Use Value: Provides reinforced insulation (VIOWM = 443VRMS) meeting IEC 61010-1 requirements for patient-connected equipment. | Use Scenario: Isolating digital control signals between microcontroller and isolated analog front-end in ECG/EEG modules. IC Role / Device Role / Timing Role: Low-glitch (32ns rejection), low-jitter isolator ensuring accurate sampling trigger timing across isolation barrier. Use Value: Supports 1 MOOP basic insulation per IEC 60601-1 ed.3, enabling safe patient-connected device certification. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar digital isolator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ISO6741QDWR | 4-channel, 5000VRMS, 50Mbps, 16-pin SOIC - higher isolation and speed but no default-low option | Targeted at high-speed industrial Ethernet gateways and servo drives requiring >10Mbps throughput | Select ISO6741QDWR only if 50Mbps and 5kVRMS are mandatory; MAX14930AAWE+ offers better cost/performance for ≤1Mbps legacy interfaces |
| ADUM1401ARWZ | 4-channel, 2500VRMS, 1Mbps, wide SOIC - same speed and package, but default-high output and lower CMTI (25kV/µs vs. 25kV/µs) | Used in general-purpose isolated I/O where output polarity during power loss is non-critical | Choose ADUM1401ARWZ if default-high behavior aligns with system reset logic; otherwise MAX14930AAWE+ provides safer default-low fail-safe state |
Compared with ISO6741QDWR and ADUM1401ARWZ, MAX14930AAWE+ uniquely combines 2.75kVRMS isolation, 1Mbps capability, default-low outputs, and −40°C to +125°C operation in a single wide-SOIC solution - making it optimal for cost-sensitive, thermally demanding, fail-safe industrial and BMS designs.
Availability
MAX14930AAWE+ is available at Aetrix Electronics and suitable for industrial fieldbus interfaces, isolated SPI communication, battery management systems, medical patient monitoring, and other applications requiring stable component supply with extended temperature support and safety-certified isolation.
Supply support for MAX14930AAWE+ 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 semiconductors, serving industrial, automotive, communications, and healthcare markets.
The MAX14930–MAX14932 family was designed specifically for high-reliability multichannel digital isolation in harsh environments - emphasizing safety certification, wide temperature operation, and flexible supply voltage compatibility.
FAQ
What is the isolation voltage rating of the MAX14930AAWE+?
The MAX14930AAWE+ is rated for 2.75kVRMS withstand voltage (60 seconds), 443VRMS continuous working voltage (VIOWM), and 630VPK repetitive peak voltage (VIORM). It is certified to UL1577, VDE 0884-11 (Basic Insulation), and IEC 60950-1 - making it suitable for reinforced insulation applications in industrial and medical systems.
Does the MAX14930AAWE+ support different supply voltages on each side?
Yes, the MAX14930AAWE+ supports independent 1.71V to 5.5V supplies on both the primary (VDDA/GNDA) and secondary (VDDB/GNDB) sides. This enables true level translation - for example, interfacing a 1.8V FPGA I/O bank with a 5V isolated sensor interface - without external level shifters.
What is the meaning of "default-low" in the MAX14930AAWE+ part number suffix?
The "A" in MAX14930AAWE+ denotes default-low output behavior: when any input (INA1–INA4) is unpowered or floating, the corresponding OUTB output drives low. This fail-safe state prevents undefined logic levels during power sequencing, brownouts, or cable disconnects - critical in safety-critical BMS and medical applications.
How does the MAX14930AAWE+ compare to the MAX14930AWWE+?
The MAX14930AAWE+ (default-low) and MAX14930AWWE+ (default-high) share identical isolation ratings, timing specs, and package. The sole difference is output behavior during input loss: AAWE+ pulls OUTB low, AWWE+ pulls OUTB high. Selection depends on system-level fail-safe requirements - e.g., low = disable actuator, high = enable alarm.
Is the MAX14930AAWE+ suitable for use in medical equipment?
Yes, the MAX14930AAWE+ meets IEC 60601-1 (ed.3) requirements for basic insulation (1 MOOP, 443VRMS working voltage) and is certified by TÜV for medical applications. Its −40°C to +125°C operation, 25kV/µs CMTI, and safety-limited power dissipation make it appropriate for isolated patient monitoring front-ends and diagnostic equipment.
MAX14930AAWE+ Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Series:
- -
- Package/Case:
- 16-SOIC (0.295", 7.50mm Width)
- Packaging:
- Tube
- 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
MAX14930AAWE+ FAQ
1.How can I place an order for MAX14930AAWE+ through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX14930AAWE+ 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 MAX14930AAWE+ reliable?
The price and inventory of MAX14930AAWE+ are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX14930AAWE+ is usually 5 days.
3.What payment methods are accepted for MAX14930AAWE+?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX14930AAWE+ transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX14930AAWE+?
MAX14930AAWE+ orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX14930AAWE+ 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 MAX14930AAWE+?
For technical support, including MAX14930AAWE+ datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX14930AAWE+ requirements.
6.How does Aetrix verify that MAX14930AAWE+ is sourced from the original manufacturer or authorized distributors?
All MAX14930AAWE+ 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 MAX14930AAWE+ meets industry standards.
7.What is the process for return or replacement of MAX14930AAWE+?
All MAX14930AAWE+ units undergo pre-shipment inspection (PSI). If there is an issue with MAX14930AAWE+, 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 MAX14930AAWE+ part is unused and in its original packaging.
Return procedure for MAX14930AAWE+:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
MAX14930AAWE+ Tags
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