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Analog Devices Inc./Maxim Integrated MAX14930DASE+
- Part No.:
- MAX14930DASE+
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Digital Isolators
- Package:
- 16-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
MAX14930DASE+.pdf
- Description:
- DGTL ISO 2750VRMS 4CH GP 16SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:527
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Product details
Overview
MAX14930DASE+ from Analog Devices is a 4-channel, unidirectional digital isolator with 2.75kVRMS galvanic isolation, 150Mbps maximum data rate, and independent 1.71V–5.5V dual-supply operation across isolated domains. It features 6.67ns minimum pulse width, 25kV/µs common-mode transient immunity, and operates from –40°C to +125°C - enabling robust signal isolation in industrial fieldbus, isolated SPI, and battery management systems.
For engineers reviewing the MAX14930DASE+ datasheet, MAX14930DASE+ pinout, MAX14930DASE+ application, or MAX14930DASE+ equivalent, this device delivers high-speed, low-jitter isolation with configurable default output states (high/low), wide SOIC package compatibility, and safety certifications including UL1577, VDE 0884-11 Basic Insulation, and IEC 61000-4-5 ±10kV surge protection.
Technical Context
The MAX14930DASE+ implements capacitive isolation using Analog Devices' proprietary process, supporting only unidirectional channel configuration (A→B) with four dedicated input-to-output paths. Its architecture enables precise timing control via low propagation delay skew (<1.6ns channel-to-channel same-direction), sub-10ns pulse-width distortion, and guaranteed operation up to 150Mbps at 1.8V–5.5V supplies.
It integrates enable-controlled three-state outputs (tEN = 5.1ns typ, tTRI = 2.7ns typ at 5V), supports level translation between disparate logic domains, and maintains functional integrity under high dv/dt transients (25kV/µs CMTI) - critical for noisy motor drives and isolated power supply feedback loops.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Isolation Rating | 2.75kVRMS withstand (60s), 443VRMS continuous working voltage - meets reinforced insulation requirements for industrial safety standards. |
| Max Data Rate | 150Mbps - supports high-speed serial interfaces like isolated USB bridge control, fast SPI, and real-time sensor data links. |
| Propagation Delay | 4.9–14.9ns (tPHL/tPLH, voltage-dependent) - enables sub-10ns timing-critical applications such as gate driver feedback and ADC sampling isolation. |
| CMTI | 25kV/µs - rejects fast common-mode noise in motor inverters and switch-mode power supplies without signal corruption. |
| Supply Range | 1.71V–5.5V per side - allows direct interfacing with 1.8V FPGAs, 3.3V microcontrollers, and 5V legacy peripherals without level shifters. |
| Default Output State | Low - ensures defined logic state during power-up or input loss, preventing undefined bus conditions in isolated control lines. |
| Operating Temp | –40°C to +125°C - qualified for under-hood automotive, industrial PLC, and energy storage BMS environments. |
Pinout & Package
MAX14930DASE+ is housed in a 16-pin wide-body SOIC package (10.3mm × 7.5mm, creepage/clearance = 8mm), RoHS-compliant, with exposed pad not present. Pin functions are electrically asymmetric: Side A (input domain) and Side B (output domain) have separate power/ground rails and non-mirrored pin assignments.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| INA1–INA4 | Input signals (Side A) | Digital inputs referenced to GNDA; accept 1.71V–5.5V logic levels with 0.7×VDDA VIH threshold. |
| OUTB1–OUTB4 | Output signals (Side B) | CMOS outputs referenced to GNDB; drive 4mA loads with VOH = VDDB–0.4V, VOL = 0.4V. |
| VDDA / GNDA | Side A power/ground | Isolated supply domain for input-side circuitry; supports independent voltage rail selection. |
| VDDB / GNDB | Side B power/ground | Isolated supply domain for output-side circuitry; enables level translation and noise separation. |
| ENA / ENB | Enable controls | Active-high enables for Side A and Side B outputs; tEN = 5.1ns (5V), tTRI = 2.7ns - supports dynamic channel gating. |
Key Features
| Feature | Design Value |
|---|---|
| Capacitive isolation barrier | Proprietary dielectric stack enabling 2.75kVRMS rating, <2pF inter-side capacitance, and 150-year lifetime under rated stress. |
| Ultra-low propagation skew | ≤0.9ns channel-to-channel (same direction) at 5V - preserves timing integrity in parallel data buses and multi-signal feedback paths. |
| Configurable default state | Factory-set low-default outputs eliminate need for external pull-downs during power sequencing or fault conditions. |
| High CMTI immunity | 25kV/µs rejection of fast transients - sustains reliable operation in 48V/400V EV battery monitoring and industrial servo amplifier zones. |
| Safety-certified insulation | UL1577 (3750VRMS), VDE 0884-11 Basic Insulation, IEC 61000-4-5 ±10kV surge - reduces system-level certification effort for medical and industrial equipment. |
Applications
| Industrial Fieldbus Isolation | Isolated SPI Interface |
|---|---|
|
Use Scenario: Isolating RS-485 transceivers in PLC backplanes and distributed I/O modules exposed to ground potential differences >1kV. IC Role / Device Role: Unidirectional signal coupler separating controller-side logic (3.3V) from bus-side transceiver (5V), with ENB enabling dynamic bus arbitration. Use Value: Prevents ground loop currents and latch-up while maintaining 150Mbps burst throughput for real-time motion control updates. |
Use Scenario: Isolating SPI clock/MOSI/MISO/SS lines between MCU and isolated ADC/DAC in high-voltage energy metering. IC Role / Device Role: Four independent unidirectional channels - INA1→OUTB1 (SCLK), INA2→OUTB2 (MOSI), INA3→OUTB3 (SS), INA4→OUTB4 (MISO return). Use Value: Enables full-duplex SPI operation at 25MHz with <10ns jitter, meeting IEC 62053-21 accuracy requirements for Class 0.2 meters. |
| Battery Management System (BMS) | Medical Sensor Isolation |
|
Use Scenario: Isolating cell voltage monitor ICs from host MCU in 800V EV traction battery packs operating at –40°C to +85°C ambient. IC Role / Device Role: Level-translating interface between 1.8V analog front-end and 3.3V safety MCU, with low-power 1.8V operation reducing thermal load. Use Value: Supports 150Mbps data streaming from 12-cell monitors with <1ns PWD, ensuring synchronized sampling across 96-cell stacks. |
Use Scenario: Isolating ECG/EEG front-end analog signal chains from digital processing unit in Class II medical devices requiring 2 MOOP. IC Role / Device Role: Galvanic barrier for digital control signals (LED enable, gain select, filter config) between patient-connected analog section and mains-referenced processor. Use Value: Meets IEC 60601-1 ed.3 443VRMS working voltage requirement with 630VPK repetitive peak rating for long-term reliability. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar digital isolator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SI8641ED-B-IS | 4-channel, 2.5kVRMS, 150Mbps, 1.7–5.5V supply; uses silicon dioxide isolation; higher CMTI (75kV/µs); no default-low option. | Preferred where ultra-high noise immunity is required (e.g., solar string inverters), but lacks factory-set low-default outputs. | Select when CMTI >50kV/µs is mandatory and output state can be managed externally. |
| ADUM4401BRWZ | 4-channel, 5kVRMS, 1Mbps max, 3.0–5.5V supply; magnetic isolation; higher propagation delay (60ns typ); default-high only. | Suitable for low-speed, high-isolation applications (e.g., isolated power supply feedback), but insufficient for >10Mbps SPI or fieldbus. | Choose only for cost-sensitive, low-data-rate designs needing >5kVRMS rating - not a performance substitute for MAX14930DASE+. |
Compared with SI8641ED-B-IS and ADUM4401BRWZ, the MAX14930DASE+ uniquely combines 2.75kVRMS isolation, 150Mbps speed, factory low-default outputs, and 1.71V minimum supply - making it optimal for high-speed, low-voltage, safety-critical industrial and BMS designs where timing precision and power flexibility are non-negotiable.
Availability
MAX14930DASE+ is available at Aetrix Electronics and suitable for industrial automation, battery management systems, and medical instrumentation requiring stable component supply, long-lifecycle assurance, and traceable sourcing.
Supply support for MAX14930DASE+ 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 since 1965.
The MAX14930DASE+ belongs to the MAX1493x family of high-speed digital isolators designed specifically for demanding industrial and energy infrastructure applications requiring robust noise immunity, wide temperature operation, and regulatory compliance.
FAQ
What is the maximum data rate supported by the MAX14930DASE+?
The MAX14930DASE+ supports a maximum data rate of 150Mbps under typical conditions (VDDA/VDDB = 5.0V, CL = 15pF). This is confirmed in the Dynamic Electrical Characteristics table for MAX1493_B/E variants, where DRMAX = 150Mbps is explicitly specified. Performance scales with supply voltage - at 1.8V, the usable rate remains ≥100Mbps with appropriate signal integrity design.
Does the MAX14930DASE+ support bidirectional communication?
No, the MAX14930DASE+ is a unidirectional digital isolator with fixed A→B channel direction (INAx → OUTBx). It does not support bidirectional protocols like I²C. For bidirectional isolation, Analog Devices recommends the MAX14933 family. The MAX14930DASE+ pinout and functional diagram confirm dedicated input (INA1–INA4) and output (OUTB1–OUTB4) terminals with no shared or reversible signal paths.
What safety certifications apply to the MAX14930DASE+?
The MAX14930DASE+ is certified to UL1577 (rated 3750VRMS), cUL (CSA Bulletin 5A), VDE 0884-11 Basic Insulation (VIOTM = 4600VPK, VIORM = 630VPK), and meets IEC 61000-4-5 ±10kV surge immunity. These are documented in the Safety Regulatory Approvals section and verified via file E351759 (UL/cUL) and TÜV report 5015017-4880-0001/272147/TL7/SCT (VDE).
Can the MAX14930DASE+ operate with different supply voltages on each side?
Yes - the MAX14930DASE+ supports independent 1.71V–5.5V supplies on Side A (VDDA/GNDA) and Side B (VDDB/GNDB), enabling true level translation. DC Electrical Characteristics specify VIH/VIL thresholds relative to their respective VDD rails, and supply current tables list IDDA/IDDB separately - confirming fully decoupled power domains essential for interfacing 1.8V sensors with 5V actuators.
What is the default output state of the MAX14930DASE+?
The MAX14930DASE+ has a factory-configured default-low output state: when any input (INAx) is unpowered or floating, the corresponding OUTBx output defaults to logic low. This is specified in the General Description ("each device is also available in either a default high or default low configuration") and confirmed by the part number suffix 'D' per the Product Selector Guide - where 'D' denotes default-low variant.
MAX14930DASE+ Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Series:
- -
- Package/Case:
- 16-SOIC (0.154", 3.90mm 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
MAX14930DASE+ FAQ
1.How can I place an order for MAX14930DASE+ through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX14930DASE+ 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 MAX14930DASE+ reliable?
The price and inventory of MAX14930DASE+ are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX14930DASE+ is usually 5 days.
3.What payment methods are accepted for MAX14930DASE+?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX14930DASE+ transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX14930DASE+?
MAX14930DASE+ orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX14930DASE+ 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 MAX14930DASE+?
For technical support, including MAX14930DASE+ datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX14930DASE+ requirements.
6.How does Aetrix verify that MAX14930DASE+ is sourced from the original manufacturer or authorized distributors?
All MAX14930DASE+ 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 MAX14930DASE+ meets industry standards.
7.What is the process for return or replacement of MAX14930DASE+?
All MAX14930DASE+ units undergo pre-shipment inspection (PSI). If there is an issue with MAX14930DASE+, 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 MAX14930DASE+ part is unused and in its original packaging.
Return procedure for MAX14930DASE+:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
MAX14930DASE+ Tags
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