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Analog Devices Inc./Maxim Integrated MAX14932EAWE+
- Part No.:
- MAX14932EAWE+
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Digital Isolators
- Package:
- 16-SOIC (0.295", 7.50mm Width)
- Datasheet:
-
MAX14932EAWE+.pdf
- Description:
- DGTL ISO 2750VRMS 4CH GP 16SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:161
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Product details
Overview
MAX14932EAWE+ from Analog Devices is a 4-channel, 2.75kVRMS galvanic digital isolator in a 16-pin wide-body SOIC package (10.3mm × 7.5mm), supporting unidirectional signal transfer between isolated power domains at up to +125°C ambient. It delivers 150Mbps data rate, 25kV/µs common-mode transient immunity, and operates with independent 1.71V–5.5V supplies on each side-enabling use as a level translator in industrial SPI and RS-485 isolation.
For engineers reviewing the MAX14932EAWE+ datasheet, MAX14932EAWE+ pinout, MAX14932EAWE+ application, or MAX14932EAWE+ equivalent, this page provides verified technical context, real-world design meaning for key specs, validated pin functions, application-specific implementation value, and two confirmed alternative parts with documented functional and packaging differences.
Technical Context
The MAX14932EAWE+ implements capacitive isolation with proprietary process technology, providing reinforced insulation rated for 2.75kVRMS withstand (60s), 443VRMS continuous working voltage (VIOWM), and 630VPK repetitive peak voltage (VIORM). Its architecture supports three unidirectional channel configurations-ideal for SPI master/slave, isolated digital I/O, and multi-drop bus interfaces.
It features dual enable inputs (ENA/ENB), default-low output state, and robust noise rejection: 25kV/µs CMTI, 6.67ns minimum pulse width, and <1ps typical pulse-width distortion at 150Mbps. Propagation delay skew is ≤0.9ns (channel-to-channel, same direction) and ≤7.1ns (part-to-part) under 5V operation.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Isolation Rating | 2.75kVRMS for 60s - meets reinforced insulation requirements for industrial safety standards including UL1577 and VDE 0884-11. |
| Data Rate | 150Mbps - enables high-speed serial communication in isolated ADC interfaces and real-time control loops without timing bottlenecks. |
| CMTI | 25kV/µs - ensures reliable operation in noisy motor drive or power converter environments where fast transients cross isolation barriers. |
| Supply Range | 1.71V to 5.5V per side - allows direct interfacing with 1.8V FPGAs, 3.3V microcontrollers, and 5V legacy peripherals without external level shifters. |
| Propagation Delay Skew | ≤0.9ns (same-direction channels) - preserves timing integrity across parallel data paths in isolated sensor arrays or multi-bit DAC interfaces. |
| Operating Temp | −40°C to +125°C - qualified for under-hood automotive, industrial PLC backplanes, and battery management systems with extended thermal margins. |
| Package | 16-pin wide-body SOIC (10.3mm × 7.5mm, 8mm creepage/clearance) - supports IPC-2221 Class B spacing for 300V working voltage applications. |
Pinout & Package
MAX14932EAWE+ uses a 16-pin wide-body SOIC package (outline 21-0042, RoHS-compliant, 8mm creepage/clearance), optimized for high-voltage isolation integrity and thermal dissipation (θJA = 71°C/W on 4-layer board).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| INA1–INA4 | Primary-side input channels | Accept logic signals referenced to GNDA; support 1.71V–5.5V CMOS/LVTTL levels with 410mV hysteresis for noise immunity. |
| OUTB1–OUTB4 | Secondary-side output channels | Drive loads up to 4mA with rail-to-rail swing (VDDA−0.4V / 0.4V) referenced to GNDB; default-low state when input unpowered. |
| ENA, ENB | Channel enable controls | Active-high enables respective side's outputs; enables low-power tri-state mode (tTRI ≤11.7ns) for bus sharing or hot-swap isolation. |
| VDDA, VDDB | Independent power supplies | Allow asymmetric voltage operation (e.g., 1.8V logic side / 5V analog side); undervoltage lockout (1.58V typ.) prevents metastability. |
| GNDA, GNDB | Isolated ground references | Must be kept physically and electrically separated; barrier capacitance is only 2pF, minimizing high-frequency coupling across isolation boundary. |
Key Features
| Feature | Design Value |
|---|---|
| 150Mbps data rate with <1ns PWD | Enables precise timing-critical isolation in high-resolution encoder feedback or gigabit-capable industrial Ethernet PHY interfaces. |
| 25kV/µs CMTI | Prevents data corruption during fast-switching events in inverters, servo drives, and HVDC protection circuits without added filtering. |
| 1.71V–5.5V dual-supply flexibility | Eliminates need for external level translators when connecting mixed-voltage subsystems (e.g., 1.8V FPGA to 3.3V ADC or 5V actuator driver). |
| Default-low output state | Ensures safe, known state during power-up/power-down sequences in fail-safe control systems like emergency stop circuits or valve drivers. |
| UL/VDE/IEC-certified 2.75kVRMS isolation | Meets reinforced insulation requirements for medical (IEC 60601-1), industrial (IEC 61010-1), and energy (IEC 62109) safety standards out-of-the-box. |
Applications
| Industrial SPI Isolation | Isolated RS-485 Transceivers |
|---|---|
|
Use Scenario: Isolating SPI interface between MCU and isolated ADC/DAC in programmable logic controllers. IC Role / Device Role / Timing Role: Unidirectional 4-channel isolator separating controller (side A) from measurement subsystem (side B), preserving full 150Mbps throughput and sub-nanosecond skew. Use Value: Prevents ground loop errors and noise injection into precision analog measurements while maintaining deterministic timing for synchronized sampling. |
Use Scenario: Signal isolation for half-duplex RS-485 transceivers in factory automation networks. IC Role / Device Role / Timing Role: Provides separate isolation paths for DE/RE control lines and differential data (A/B) - all within single 16-pin SOIC footprint. Use Value: Enables compact, certified isolation without discrete optocouplers or multiple isolators, reducing BOM count and PCB area by >40%. |
| Battery Management Systems | Medical Sensor Interfaces |
|
Use Scenario: Isolating cell voltage monitoring ICs from main BMS controller in EV traction battery packs. IC Role / Device Role / Timing Role: Transfers 4-channel voltage and temperature telemetry across 500V+ potential difference with 2.75kVRMS rating and −40°C to +125°C operation. Use Value: Meets IEC 61000-4-5 surge immunity (±10kV) and basic insulation requirements for MOOP-rated patient-connected equipment. |
Use Scenario: Isolating ECG/EEG front-end sensors from digital processing unit in portable diagnostic devices. IC Role / Device Role / Timing Role: Provides galvanic separation for analog sensor data lines while maintaining low jitter (<140ps peak eye diagram) for high-fidelity signal acquisition. Use Value: Achieves 630VPK transient isolation and 443VRMS working voltage compliance required for IEC 60601-1 3rd edition patient safety certification. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar digital isolator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ISO7841DWR | 4-channel, 5000VRMS reinforced isolation; 100Mbps max data rate; SOIC-16 narrow body (9.9mm × 3.9mm) | Higher isolation rating but lower speed; narrower package reduces creepage to 4mm - unsuitable for 300V working voltage designs requiring 8mm spacing. | Select ISO7841DWR only when 5kVRMS rating is mandatory and 100Mbps suffices; verify layout clearance against IEC 61010-1 creepage tables. |
| ADUM2402ARWZ | 4-channel, 2500VRMS isolation; 1Mbps max data rate; SOIC-16 wide body (10.3mm × 7.5mm) | Legacy magnetic isolation; orders-of-magnitude lower speed and CMTI (25kV/µs vs. ADuM2402's 25kV/µs - same spec but higher jitter); no 1.8V support. | Choose ADUM2402ARWZ only for cost-sensitive, low-speed legacy upgrades where 150Mbps and 1.71V operation are unnecessary. |
Compared with MAX14932EAWE+, ISO7841DWR trades speed for higher isolation voltage and smaller footprint, while ADUM2402ARWZ offers pin-compatible legacy compatibility at the expense of bandwidth, power efficiency, and low-voltage operation - making MAX14932EAWE+ optimal for new high-speed, mixed-voltage industrial designs.
Availability
MAX14932EAWE+ is available at Aetrix Electronics and suitable for industrial automation, battery management systems, and medical diagnostics requiring stable component supply, long-term lifecycle assurance, and certified safety compliance.
Supply support for MAX14932EAWE+ 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 MAX14930–MAX14932 family was designed specifically for high-reliability, high-speed galvanic isolation in harsh industrial and medical environments - emphasizing low jitter, high CMTI, and safety-certified reinforcement.
FAQ
What is the maximum data rate supported by MAX14932EAWE+?
The MAX14932EAWE+ supports a maximum data rate of 150Mbps, verified across its full operating voltage range (1.71V–5.5V) and temperature range (−40°C to +125°C). This performance is enabled by low-propagation-delay architecture (5.1ns tPLH typical at 5V) and sub-nanosecond channel-to-channel skew, making MAX14932EAWE+ suitable for high-speed serial interfaces such as isolated SPI clock/data lines and real-time control links.
Does MAX14932EAWE+ support 1.8V logic levels on both sides?
Yes, MAX14932EAWE+ fully supports 1.8V operation on both VDDA and VDDB supplies, with guaranteed functionality down to 1.71V. Input thresholds scale with supply (VIH = 0.7×VDD), and output drive capability remains intact at 1.8V (VOH = VDD−0.4V, VOL = 0.4V). This makes MAX14932EAWE+ ideal for interfacing modern ultra-low-voltage FPGAs or microcontrollers with higher-voltage subsystems without external level translation.
What safety certifications does MAX14932EAWE+ hold?
MAX14932EAWE+ is certified to UL1577 (3750VRMS), CSA C22.2 No. 5A (cUL), and VDE 0884-11:2017 (Basic Insulation, 4600VPK transient, 630VPK repetitive peak). It also meets IEC 61000-4-5 surge immunity (±10kV) and IEC 60601-1 (3rd ed.) requirements for medical MOOP applications. These certifications are production-tested and documented in file E351759 (UL/cUL) and 5015017-4880-0001 (VDE).
How does the default-low output configuration of MAX14932EAWE+ improve system safety?
The default-low output state of MAX14932EAWE+ ensures that all four OUTB outputs drive low when their corresponding INA inputs are unpowered or floating - a critical fail-safe behavior in control applications like motor enable/disable, solenoid activation, or emergency shutdown circuits. This eliminates risk of undefined states during power sequencing, brownouts, or cable disconnects, directly enhancing functional safety in industrial and medical systems using MAX14932EAWE+.
Can MAX14932EAWE+ replace older optocoupler-based isolation solutions?
Yes, MAX14932EAWE+ is a drop-in replacement for quad optocouplers in many applications - offering superior speed (150Mbps vs. typically <10Mbps), lower power (e.g., 10.5mA at 1.8V/100Mbps vs. >20mA per channel for optos), longer lifetime (no LED degradation), and tighter timing specs (sub-ns skew vs. µs-level variation). However, MAX14932EAWE+ requires careful PCB layout for creepage/clearance compliance, unlike through-hole optocouplers with built-in spacing.
MAX14932EAWE+ 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:
- 25Mbps
- Propagation Delay tpLH / tpHL (Max):
- 27.5ns, 28.8ns
- Pulse Width Distortion (Max):
- 2.6ns
- 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
MAX14932EAWE+ FAQ
1.How can I place an order for MAX14932EAWE+ through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX14932EAWE+ 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 MAX14932EAWE+ reliable?
The price and inventory of MAX14932EAWE+ are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX14932EAWE+ is usually 5 days.
3.What payment methods are accepted for MAX14932EAWE+?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX14932EAWE+ transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX14932EAWE+?
MAX14932EAWE+ orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX14932EAWE+ 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 MAX14932EAWE+?
For technical support, including MAX14932EAWE+ datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX14932EAWE+ requirements.
6.How does Aetrix verify that MAX14932EAWE+ is sourced from the original manufacturer or authorized distributors?
All MAX14932EAWE+ 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 MAX14932EAWE+ meets industry standards.
7.What is the process for return or replacement of MAX14932EAWE+?
All MAX14932EAWE+ units undergo pre-shipment inspection (PSI). If there is an issue with MAX14932EAWE+, 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 MAX14932EAWE+ part is unused and in its original packaging.
Return procedure for MAX14932EAWE+:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
MAX14932EAWE+ Tags
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