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Analog Devices Inc./Maxim Integrated MAX14932AAWE+
- Part No.:
- MAX14932AAWE+
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Digital Isolators
- Package:
- 16-SOIC (0.295", 7.50mm Width)
- Datasheet:
-
MAX14932AAWE+.pdf
- Description:
- DGTL ISO 2750VRMS 4CH GP 16SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:5,917
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Product details
Overview
MAX14932AAWE+ 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. It features default-low output configuration, 6.67ns minimum pulse width, and operates across –40°C to +125°C for industrial fieldbus and isolated SPI/RS-485 interfaces.
For engineers reviewing the MAX14932AAWE+ datasheet, MAX14932AAWE+ pinout, MAX14932AAWE+ application, or MAX14932AAWE+ equivalent, this device delivers high-speed, robust isolation for multichannel signal transfer between domains with differing ground potentials and supply voltages in harsh environments.
Technical Context
The MAX14932AAWE+ implements capacitive isolation using Analog Devices' proprietary silicon-dioxide barrier technology, supporting asymmetric voltage operation (e.g., 1.8V on side A, 3.3V on side B) and enabling level translation. Its unidirectional channel architecture-two channels A→B and two B→A-supports full-duplex SPI isolation without bidirectional logic overhead.
It integrates enable-controlled three-state outputs (tEN = 5.1ns typ at 5V, tTRI = 2.7ns typ), low propagation delay skew (<1.6ns channel-to-channel same-direction), and 25kV/µs common-mode transient immunity. The device meets VDE 0884-11 Basic Insulation with 630VPK repetitive peak voltage and 4600VPK transient isolation rating.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Isolation Rating | 2.75kVRMS withstand (60s), 443VRMS continuous working voltage - enables safe operation in industrial mains-referenced systems |
| Max Data Rate | 150Mbps - supports high-speed serial protocols including fast SPI and isolated digital I/O |
| Propagation Delay | 5.1ns (tPLH) / 4.9ns (tPHL) typ at 5V - ensures tight timing alignment for synchronous interfaces |
| Supply Range | 1.71V–5.5V per side - allows direct interfacing with 1.8V microcontrollers and 5V peripherals |
| Operating Temp | –40°C to +125°C - qualified for under-hood automotive, motor drives, and industrial PLC environments |
| CMTI | 25kV/µs - rejects fast transients from switching power supplies and motor drives without data corruption |
| Default Output State | Low - prevents floating or unintended activation during power-up or input loss |
Pinout & Package
MAX14932AAWE+ is housed in a 16-pin wide-body SOIC package (10.3mm × 7.5mm, 8mm creepage/clearance), RoHS-compliant, with exposed pad not connected. Pin functions are validated per Analog Devices' functional diagram and absolute maximum ratings table.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDDA / GNDA | Side A power and ground | Supplies and references all A-side inputs (INA1–INA2, ENA); enables independent voltage domain operation |
| VDDB / GNDB | Side B power and ground | Supplies and references all B-side outputs (OUTB1–OUTB4, ENB); isolates B-side logic from A-side noise |
| INA1, INA2 | A-side input signals | Drive isolated signals from controller side to peripheral side (A→B direction) |
| INB1, INB2 | B-side input signals | Drive return-path signals from peripheral side to controller side (B→A direction) |
| OUTA1, OUTA2 | A-side outputs | Deliver isolated B→A signals to controller; three-state when ENA = low |
| OUTB1–OUTB4 | B-side outputs | Deliver isolated A→B signals to peripherals; three-state when ENB = low |
| ENA, ENB | Output enable controls | Independent gating of A- and B-side outputs; critical for bus arbitration and power sequencing |
Key Features
| Feature | Design Value |
|---|---|
| Capacitive isolation barrier | 2.75kVRMS rating with 630VPK repetitive peak voltage - eliminates transformer or opto coupling while meeting IEC 60747-5-5 |
| 150Mbps data rate | Enables real-time control loop closure in servo drives and high-resolution ADC/DAC isolation |
| 1.71V–5.5V dual-supply flexibility | Eliminates external level shifters when interfacing 1.8V FPGAs with 3.3V/5V sensors or actuators |
| 25kV/µs CMTI | Prevents bit errors in noisy factory-floor environments with variable-frequency drives and EMI sources |
| Default-low output state | Ensures predictable inactive state during brown-out, reset, or disconnected input - improves system safety |
| 4mm/8mm creepage options | Wide SOIC variant satisfies reinforced insulation requirements for medical (IEC 60601-1) and industrial safety standards |
Applications
| Industrial Fieldbus Isolation | Isolated SPI Interface |
|---|---|
Use Scenario: RS-485 communication node in programmable logic controller (PLC) backplane with 24V DC field power and 3.3V logic domain. IC Role / Device Role / Timing Role: Galvanically isolates differential data lines and control signals between field-side transceivers and controller-side MCU, blocking ground loops and surge currents. Use Value: Maintains 150Mbps timing integrity while surviving ±10kV surges per IEC 61000-4-5 and operating continuously at +125°C ambient. |
Use Scenario: High-speed SPI interface between an ARM Cortex-M7 MCU and isolated ADC/DAC in motor control inverter. IC Role / Device Role / Timing Role: Provides four unidirectional channels - two for SCLK/MOSI (A→B), two for MISO/CS (B→A) - preserving full-duplex timing at up to 50MHz clock rates. Use Value: Achieves sub-8ns propagation delay and <1.6ns channel skew, enabling precise sampling synchronization without added jitter or setup/hold violations. |
| Battery Management System (BMS) | Medical Sensor Isolation |
Use Scenario: Cell monitoring unit in EV battery pack with 400V+ stack referenced to chassis ground and isolated 3.3V telemetry MCU. IC Role / Device Role / Timing Role: Isolates voltage/current measurement data and cell balancing commands across 2.75kVRMS barrier, preventing fault propagation from high-voltage domain. Use Value: Supports 1.71V–5.5V supplies on both sides, allowing direct connection to low-power sensor front-end and host processor without level-shifting components. |
Use Scenario: Patient-connected ECG front-end module requiring 1 MOOP basic insulation per IEC 60601-1 ed.3. IC Role / Device Role / Timing Role: Transfers digitized analog sensor data and control signals across reinforced isolation barrier while maintaining low leakage (<1µA) and high RIO (>10¹²Ω). Use Value: Certified to VDE 0884-11 and UL1577 with 443VRMS working voltage - meets essential safety compliance without external certification overhead. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar digital isolator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SI8642ED-B-IS | 4-channel, 2.5kVRMS, 150Mbps, default-high outputs, 16-pin narrow SOIC (4mm creepage) | Lacks 8mm creepage; lower VIOWM (350VRMS); no default-low option | Select when board space is constrained and default-high behavior aligns with system reset logic |
| ADUM4402ARWZ | 4-channel, 5kVRMS, 1Mbps max data rate, 16-pin wide SOIC, default-high outputs | Lower speed limits use in high-bandwidth SPI; higher isolation suits mains-connected equipment | Select when ultra-high isolation (5kVRMS) is mandatory and data rate ≤1Mbps suffices |
Compared with SI8642ED-B-IS and ADUM4402ARWZ, the MAX14932AAWE+ uniquely combines 150Mbps speed, 2.75kVRMS isolation, default-low outputs, and 8mm creepage in a single wide-SOIC package - making it optimal for space-tolerant, high-speed industrial and medical designs requiring fail-safe output states.
Availability
MAX14932AAWE+ is available at Aetrix Electronics and suitable for industrial automation, battery management systems, and medical sensor interfaces requiring stable component supply, long-term lifecycle support, and traceable sourcing.
Supply support for MAX14932AAWE+ 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 since 1965.
The MAX1493x family was designed specifically for high-speed, high-isolation multichannel digital signal transfer in demanding environments - emphasizing robustness, supply flexibility, and safety certification out-of-the-box.
FAQ
What is the isolation voltage rating of the MAX14932AAWE+?
The MAX14932AAWE+ is rated for 2.75kVRMS withstand voltage for 60 seconds (VISO), 443VRMS continuous working voltage (VIOWM), and 630VPK repetitive peak voltage (VIORM). It is certified to UL1577, CSA C22.2 No. 5A, and VDE 0884-11 Basic Insulation standards - confirming suitability for industrial and medical applications requiring reinforced isolation barriers.
Does the MAX14932AAWE+ support different supply voltages on each side?
Yes, the MAX14932AAWE+ supports independent 1.71V to 5.5V supplies on side A (VDDA/GNDA) and side B (VDDB/GNDB). This enables direct interfacing between disparate logic families - for example, a 1.8V FPGA on side A driving a 5V RS-485 transceiver on side B - without external level translators or voltage regulators.
What is the meaning of "AA" and "WE+" in MAX14932AAWE+?
In MAX14932AAWE+, "AA" denotes the 150Mbps speed grade and default-low output configuration; "WE+" indicates the 16-pin wide-body SOIC package (10.3mm × 7.5mm) with lead-free, RoHS-compliant finish. This exact suffix maps to the device's isolation rating (2.75kVRMS), channel direction (2× A→B, 2× B→A), and thermal performance (θJA = 71°C/W).
Can the MAX14932AAWE+ be used for isolated I²C communication?
No, the MAX14932AAWE+ is unidirectional only and does not support bidirectional I²C signaling. For I²C isolation, Analog Devices recommends the MAX14933 - a dedicated bidirectional 4-channel isolator in the same family. Using MAX14932AAWE+ for I²C would require external logic to emulate open-drain behavior and violates its specified channel architecture.
What safety certifications does the MAX14932AAWE+ hold?
The MAX14932AAWE+ holds UL1577 (E351759), CSA C22.2 No. 5A, VDE 0884-11 (Basic Insulation), and TÜV-certified compliance to IEC 61010-1 and IEC 60601-1. It achieves 1 MOOP, 630VPK working voltage, and passes partial discharge testing at 1182VP - validating its use in safety-critical industrial and patient-connected medical systems.
MAX14932AAWE+ 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:
- 2/2
- 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
MAX14932AAWE+ FAQ
1.How can I place an order for MAX14932AAWE+ through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX14932AAWE+ 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 MAX14932AAWE+ reliable?
The price and inventory of MAX14932AAWE+ are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX14932AAWE+ is usually 5 days.
3.What payment methods are accepted for MAX14932AAWE+?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX14932AAWE+ transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX14932AAWE+?
MAX14932AAWE+ orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX14932AAWE+ 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 MAX14932AAWE+?
For technical support, including MAX14932AAWE+ datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX14932AAWE+ requirements.
6.How does Aetrix verify that MAX14932AAWE+ is sourced from the original manufacturer or authorized distributors?
All MAX14932AAWE+ 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 MAX14932AAWE+ meets industry standards.
7.What is the process for return or replacement of MAX14932AAWE+?
All MAX14932AAWE+ units undergo pre-shipment inspection (PSI). If there is an issue with MAX14932AAWE+, 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 MAX14932AAWE+ part is unused and in its original packaging.
Return procedure for MAX14932AAWE+:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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