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Analog Devices Inc./Maxim Integrated MAX14930CAWE+T
- Part No.:
- MAX14930CAWE+T
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Digital Isolators
- Package:
- 16-SOIC (0.295", 7.50mm Width)
- Datasheet:
-
MAX14930CAWE+T.pdf
- Description:
- DGTL ISO 2750VRMS 4CH GP 16SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:2,944
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Product details
Overview
MAX14930CAWE+T 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 supplies on both sides, supports -40°C to +125°C ambient, and delivers robust common-mode transient immunity of 25kV/µs for industrial SPI and digital I/O isolation.
For engineers reviewing the MAX14930CAWE+T datasheet, MAX14930CAWE+T pinout, MAX14930CAWE+T application, or MAX14930CAWE+T equivalent, this device is selected for high-reliability multichannel isolation in battery management systems, fieldbus interfaces, and medical equipment where safety-certified working voltage (443VRMS) and surge withstand (±10kV per IEC 61000-4-5) are mandatory.
Technical Context
The MAX14930CAWE+T implements capacitive isolation using Maxim's proprietary silicon-dioxide barrier technology, enabling signal transfer across isolated power domains without magnetic coupling. Its four unidirectional channels support asymmetric directionality (e.g., A→B only), making it suitable for master-slave SPI bus isolation where clock and data flow unidirectionally.
It features independent undervoltage lockout (1.45V–1.71V threshold) on both VDDA and VDDB rails, integrated enable inputs (ENA/ENB) for channel gating, and logic-compatible input thresholds (0.7×VDD) with 410mV hysteresis-ensuring noise immunity in electrically noisy industrial environments.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Isolation Rating | 2.75kVRMS for 60s (UL1577), 443VRMS continuous working voltage (VIOWM) |
| Data Rate | 1Mbps maximum - sufficient for legacy SPI, RS-232, and slow digital control signals |
| Supply Voltage Range | 1.71V to 5.5V per side - enables direct interfacing with 1.8V, 2.5V, 3.3V, and 5V microcontrollers and FPGAs |
| Propagation Delay | 38.2ns–58.4ns (typical) - ensures timing predictability in real-time control loops |
| Common-Mode Transient Immunity | 25kV/µs - prevents data corruption during fast transients in motor drives or power converters |
| Operating Temperature | -40°C to +125°C ambient - qualified for under-hood automotive, industrial PLC, and battery pack monitoring |
| Output Default State | Low - outputs drive low when input is unpowered, preventing floating states in fail-safe systems |
Pinout & Package
Package: 16-pin wide-body SOIC (10.3mm × 7.5mm), creepage/clearance ≥8mm, RoHS-compliant (W16M+8 outline).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| INA1–INA4 | Primary-side digital inputs | Accept CMOS/LVTTL logic; referenced to GNDA; 0.7×VDDA high threshold |
| OUTB1–OUTB4 | Secondary-side isolated outputs | Drive CMOS loads up to 4mA; referenced to GNDB; VOH = VDDB – 0.4V |
| VDDA / GNDA | Primary-side power and ground | Supply domain for input side; supports 1.71V–5.5V; UVLO protects against brownout |
| VDDB / GNDB | Secondary-side power and ground | Isolated supply domain for output side; independent regulation required |
| ENA / ENB | Channel enable controls | Active-high enables output drivers; tri-states outputs when low - useful for bus sharing |
Key Features
| Feature | Design Value |
|---|---|
| Galvanic Isolation Barrier | Silicon-dioxide dielectric with 630VPK repetitive peak rating - meets basic insulation requirements per VDE 0884-11 |
| Surge Withstand | ±10kV surge per IEC 61000-4-5 - protects downstream circuitry from lightning-induced transients |
| Low-Power Operation | 1.2mA typical supply current at 500kHz (VDDA = 3.3V) - reduces thermal load in sealed enclosures |
| ESD Robustness | ±4kV HBM on all pins - eliminates need for external TVS diodes in many board-level ESD scenarios |
| Level Translation | 1.71V–5.5V dual-supply operation - enables seamless interface between mixed-voltage subsystems (e.g., 1.8V FPGA ↔ 5V sensor) |
Applications
| Industrial Fieldbus Interface | Battery Management System (BMS) |
|---|---|
Use Scenario: Isolating RS-485 transceivers in programmable logic controllers to prevent ground loop currents and noise coupling between field devices and control room networks. IC Role / Device Role / Timing Role: Unidirectional signal isolator for TX/RX lines and control signals; provides timing-critical propagation delay matching (<6.7ns channel-to-channel skew). Use Value: Enables reliable communication over 1200m cable runs in factory automation while maintaining UL/VDE safety certification. | Use Scenario: Isolating cell voltage monitoring ADCs and pack contactor control signals in EV traction battery packs to protect low-voltage MCU from high-voltage domain faults. IC Role / Device Role / Timing Role: Safety-critical galvanic barrier for analog front-end supervision and relay driver logic; supports 443VRMS continuous working voltage. Use Value: Meets IEC 61010-1 and IEC 60601-1 requirements for medical and automotive BMS applications with no additional isolation components. |
| Medical Diagnostic Equipment | Isolated SPI Data Acquisition |
Use Scenario: Isolating digital control and status signals between patient-connected analog front-ends and host processing units in ultrasound or ECG systems. IC Role / Device Role / Timing Role: 4-channel unidirectional isolator for sensor excitation, ADC readback, and alarm signaling; default-low outputs ensure safe state during power-up. Use Value: Provides 1 MOOP (Means of Patient Protection) compliance via 2.75kVRMS withstand and 630VPK transient rating. | Use Scenario: Isolating SPI clock, MOSI, MISO, and CS lines between an MCU and isolated ADC/DAC in precision test equipment. IC Role / Device Role / Timing Role: Direction-optimized isolator (A→B for clock/MOSI, B→A for MISO if paired) with <1µs minimum pulse width - preserves SPI timing margins at ≤1MHz. Use Value: Eliminates ground bounce and noise injection into sensitive analog measurement paths without adding jitter or skew. |
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, 2.5kVRMS, 1Mbps, default-high output, narrow SOIC-16 | Lacks default-low behavior; lower CMTI (20kV/µs); no 1.71V operation | Select when default-high startup state is acceptable and layout space requires narrow SOIC footprint. |
| ADUM1400ARWZ | 4-channel, 2.5kVRMS, 1Mbps, default-high, wide SOIC-16, 3.3V-only supply | No 1.71V–5.5V flexibility; higher supply current (2.2mA @ 1Mbps); older iCoupler process | Choose for legacy designs already using ADuM140x family and 3.3V-only systems. |
Compared with SI8640ED-B-IS and ADUM1400ARWZ, the MAX14930CAWE+T offers wider supply range (1.71V–5.5V), guaranteed default-low outputs for fail-safe operation, and superior CMTI (25kV/µs), making it preferable for next-generation industrial and medical isolation where supply flexibility and transient robustness are critical.
Availability
MAX14930CAWE+T is available at Aetrix Electronics and suitable for industrial fieldbus interfaces, battery management systems, medical diagnostic equipment, and isolated SPI data acquisition requiring stable component supply across extended temperature and safety-critical environments.
Supply support for MAX14930CAWE+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 (acquired Maxim Integrated in 2021) is a global leader in high-performance analog, mixed-signal, and digital signal processing technologies.
The MAX14930CAWE+T belongs to the MAX14930–MAX14932 family of high-isolation digital isolators designed specifically for industrial automation, medical instrumentation, and energy storage systems demanding certified safety, wide supply range, and precise timing.
FAQ
What is the isolation voltage rating of the MAX14930CAWE+T?
The MAX14930CAWE+T is rated for 2.75kVRMS withstand isolation voltage for 60 seconds per UL1577, with a continuous working voltage (VIOWM) of 443VRMS and a maximum repetitive peak isolation voltage (VIORM) of 630VPK. These ratings are certified to VDE 0884-11 Basic Insulation and supported by partial discharge testing at 1182VP.
Does the MAX14930CAWE+T support level translation between different logic voltages?
Yes, the MAX14930CAWE+T supports true bidirectional level translation: VDDA can operate from 1.71V to 5.5V independently of VDDB, which also ranges from 1.71V to 5.5V. This allows direct interfacing between 1.8V microcontrollers and 5V peripherals without external level shifters, with input thresholds scaling to 0.7×VDD and outputs compliant to standard CMOS drive strength.
What is the meaning of "CAWE+T" in the MAX14930CAWE+T part number?
The suffix "CAWE+T" identifies the specific variant: "C" denotes the 1Mbps data rate option, "A" indicates default-low output configuration, "WE" specifies the wide-body SOIC-16 package (10.3mm × 7.5mm), and "+T" signifies tape-and-reel packaging. This exact combination is documented in the MAX14930–MAX14932 Product Selector Guide.
Can the MAX14930CAWE+T be used in bidirectional protocols like I²C?
No, the MAX14930CAWE+T is strictly unidirectional (A→B only). For bidirectional protocols such as I²C, Analog Devices recommends the MAX14933 family, which integrates dedicated bidirectional channel architecture and open-drain output logic compatible with I²C pull-up requirements - the MAX14930CAWE+T lacks the necessary internal feedback path and output structure.
What safety certifications does the MAX14930CAWE+T hold?
The MAX14930CAWE+T is certified to UL1577 (file E351759), cUL (CSA Bulletin 5A), VDE 0884-11 Basic Insulation, TUV, and IEC 61010-1/IEC 60601-1 for medical use. It meets 443VRMS working voltage, 630VPK repetitive peak, and ±10kV surge (IEC 61000-4-5), supporting 1 MOOP in medical systems and single protection up to 3750VRMS per UL.
MAX14930CAWE+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:
- 150Mbps
- Propagation Delay tpLH / tpHL (Max):
- 7.5ns, 7.4ns
- Pulse Width Distortion (Max):
- 1ns
- 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
MAX14930CAWE+T FAQ
1.How can I place an order for MAX14930CAWE+T through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX14930CAWE+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 MAX14930CAWE+T reliable?
The price and inventory of MAX14930CAWE+T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX14930CAWE+T is usually 5 days.
3.What payment methods are accepted for MAX14930CAWE+T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX14930CAWE+T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX14930CAWE+T?
MAX14930CAWE+T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX14930CAWE+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 MAX14930CAWE+T?
For technical support, including MAX14930CAWE+T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX14930CAWE+T requirements.
6.How does Aetrix verify that MAX14930CAWE+T is sourced from the original manufacturer or authorized distributors?
All MAX14930CAWE+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 MAX14930CAWE+T meets industry standards.
7.What is the process for return or replacement of MAX14930CAWE+T?
All MAX14930CAWE+T units undergo pre-shipment inspection (PSI). If there is an issue with MAX14930CAWE+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 MAX14930CAWE+T part is unused and in its original packaging.
Return procedure for MAX14930CAWE+T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
MAX14930CAWE+T Tags
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