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Analog Devices Inc./Maxim Integrated MAX14936DAWE+
- Part No.:
- MAX14936DAWE+
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Digital Isolators
- Package:
- 16-SOIC (0.295", 7.50mm Width)
- Datasheet:
-
MAX14936DAWE+.pdf
- Description:
- DGTL ISO 5000VRMS 4CH GP 16SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:8,418
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Product details
Overview
MAX14936DAWE+ from Maxim Integrated is a four-channel, unidirectional 5kVRMS digital isolator with 150Mbps data rate, 1.71V–5.5V dual-supply operation per side, and default-low output configuration. It provides galvanic isolation between microcontroller GPIO and industrial fieldbus interfaces such as isolated SPI or RS-485 transceivers operating up to +125°C ambient.
For engineers reviewing the MAX14936DAWE+ datasheet, MAX14936DAWE+ pinout, MAX14936DAWE+ application, or MAX14936DAWE+ equivalent, key selection criteria include its 150Mbps maximum data rate, 25kV/µs common-mode transient immunity, 1.71V–5.5V supply flexibility across isolated domains, and SOIC-16 wide-body package with 8mm creepage/clearance for reinforced insulation compliance.
Technical Context
The MAX14936DAWE+ implements capacitive isolation with differential signaling across a 5kVRMS reinforced barrier, supporting only unidirectional channel configurations (A→B only). Its architecture delivers 6.67ns minimum pulse width and <1ns pulse-width distortion at 150Mbps, enabling high-fidelity timing-critical serial protocols like isolated SPI clock/data lines.
It features independent enable controls (ENA/ENB), internal 2µA pull-ups on enable pins, and operates across -40°C to +125°C with guaranteed performance at full temperature range. The device meets VDE 0884-11 Basic Insulation, UL1577, and IEC 61000-4-5 ±10kV surge requirements without external protection components.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Isolation Rating | 5kVRMS withstand for 60s (VISO); enables safety-certified designs per IEC 61010-1 and IEC 60601-1 |
| Max Data Rate | 150Mbps - supports high-speed isolated SPI, digital encoder feedback, and fast GPIO bridging |
| Supply Range | 1.71V–5.5V per side - allows direct interfacing with 1.8V FPGAs and 5V microcontrollers across isolation barrier |
| CMTI | 25kV/µs - ensures reliable operation in noisy motor drive or power converter environments |
| Propagation Delay | 4.9–14.9ns (tPHL/tPLH) - enables sub-10ns timing margins for 100MHz+ clock domains |
| Package | 16-pin wide SOIC (10.3mm × 7.5mm) - provides 8mm creepage/clearance for reinforced insulation compliance |
| Operating Temp | -40°C to +125°C - qualified for under-hood automotive, industrial PLC, and battery management systems |
Pinout & Package
Package: 16-pin wide-body SOIC (W16M+8), 10.3mm × 7.5mm, 8mm creepage/clearance, RoHS-compliant.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDDA (Pin 1) | Side A power supply | 1.71V–5.5V logic-side supply; requires local 0.1µF ceramic bypass |
| GNDA (Pins 2,8) | Side A ground reference | Reference for INA1–INA4, ENA, OUTA1–OUTA2; must be separated from GNDB |
| INA1–INA4 (Pins 3–6) | Unidirectional inputs (A→B) | Logic-level signals from MCU/FPGA; accept 1.71V–5.5V input thresholds |
| ENA (Pin 7) | Side A enable input | Active-high with internal 2µA pull-up to VDDA; disables all Side A outputs when low |
| GNDB (Pins 9,15) | Side B ground reference | Reference for INB1–INB2, ENB, OUTB1–OUTB4; galvanically isolated from GNDA |
| ENB (Pin 10) | Side B enable input | Active-high with internal 2µA pull-up to VDDB; disables all Side B outputs when low |
| OUTB1–OUTB4 (Pins 11,13,14,12) | Unidirectional outputs (A→B) | Default-low outputs driving isolated peripherals; VOH = VDDB–0.4V, VOL = 0.4V |
| VDDB (Pin 16) | Side B power supply | 1.71V–5.5V isolated-side supply; requires local 0.1µF ceramic bypass |
Key Features
| Feature | Design Value |
|---|---|
| 150Mbps data rate | Enables isolated high-speed SPI clock/data paths without timing bottlenecks |
| 25kV/µs CMTI | Prevents false triggering in high-dv/dt environments like motor drives and inverters |
| Dual 1.71V–5.5V supplies | Eliminates level-shifter ICs when interfacing 1.8V sensors to 5V PLC backplanes |
| Default-low output state | Ensures safe, known state during power-up or input float conditions |
| VDE 0884-11 certification | Meets reinforced insulation requirements for medical and industrial safety standards |
Applications
| Industrial SPI Isolation | Isolated Digital I/O Expansion |
|---|---|
Use Scenario: Isolating SPI bus between host MCU and isolated ADC/DAC in programmable logic controller (PLC) backplane. IC Role / Device Role / Timing Role: Unidirectional isolator for SCLK, MOSI, MISO, and CS signals with matched propagation delay (<1ns skew) to preserve SPI timing integrity. Use Value: Enables 150Mbps SPI communication across 5kVRMS barrier while maintaining setup/hold margins at 20MHz clock rates. | Use Scenario: Expanding GPIO count of an industrial microcontroller to drive 24V solenoids and read limit switches in factory automation. IC Role / Device Role / Timing Role: Four-channel level-translating isolator converting 3.3V MCU outputs to 24V field-side logic with independent enable control. Use Value: Eliminates discrete optocouplers and level shifters, reducing BOM count and PCB area while improving noise immunity. |
| RS-485 Transceiver Isolation | Battery Management System (BMS) |
Use Scenario: Isolating control signals between MCU and RS-485 transceiver in motor drive commissioning interface. IC Role / Device Role / Timing Role: Unidirectional isolator for DE/RE control lines and bidirectional data path (using two MAX14936 channels in opposite directions). Use Value: Prevents ground loop currents from corrupting RS-485 communication while supporting 25Mbps data rates required for real-time diagnostics. | Use Scenario: Isolating cell voltage monitoring ICs from main BMS controller in electric vehicle battery packs. IC Role / Device Role / Timing Role: High-CMTI isolator for analog front-end digital control signals and fault reporting lines operating at 125°C ambient. Use Value: Maintains signal integrity during high-voltage switching transients (≥25kV/µs) and meets IEC 60601-1 MOOP requirements for medical-grade BMS. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar digital isolator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ADUM2402BRWZ | 4-channel, 25Mbps, 2.5kVRMS, SOIC-16, default-high outputs | Limited to 25Mbps and 2.5kVRMS; insufficient for 150Mbps SPI or 5kVRMS medical/industrial safety | Select only if lower speed and reduced isolation rating are acceptable and default-high behavior aligns with system reset logic |
| SI8642ED-B-IS | 4-channel, 150Mbps, 5kVRMS, SOIC-16, default-low outputs, 2.5V–5.5V supplies | Same data rate and isolation rating but lacks 1.71V support and has higher typical supply current at 150Mbps | Valid alternative where 1.8V-side operation is not required and higher quiescent current is tolerable |
Compared with ADUM2402BRWZ and SI8642ED-B-IS, the MAX14936DAWE+ uniquely combines 150Mbps speed, 5kVRMS isolation, 1.71V–5.5V supply flexibility, and default-low outputs in a single SOIC-16 package-making it optimal for next-generation high-speed, safety-critical industrial and automotive isolation.
Availability
MAX14936DAWE+ is available at Aetrix Electronics and suitable for industrial automation, battery management systems, and medical instrumentation requiring stable component supply with long-term lifecycle assurance.
Supply support for MAX14936DAWE+ 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
Maxim Integrated, now part of Analog Devices, designs precision analog, mixed-signal, and high-reliability semiconductor solutions for industrial, automotive, and healthcare markets.
The MAX14934–MAX14936 family was engineered specifically for high-speed, high-isolation digital signal bridging in harsh environments-targeting applications demanding >100Mbps data rates, >25kV/µs CMTI, and certified 5kVRMS reinforcement.
FAQ
What is the maximum data rate supported by the MAX14936DAWE+?
The MAX14936DAWE+ supports a maximum data rate of 150Mbps, verified across the full operating temperature range (-40°C to +125°C) and supply voltage range (1.71V–5.5V per side). This enables high-fidelity isolation of fast serial interfaces such as SPI clock and data lines without introducing timing violations.
Does the MAX14936DAWE+ support bidirectional communication?
No, the MAX14936DAWE+ is a unidirectional isolator with fixed A→B channel direction (INA1–INA4 to OUTB1–OUTB4). For bidirectional applications like I²C, Maxim recommends the MAX14937 family. The MAX14936DAWE+ pinout and internal architecture do not support reverse signal flow.
What is the default output state of the MAX14936DAWE+?
The MAX14936DAWE+ has a default-low output configuration: when any input (INA1–INA4) is unpowered or floating, the corresponding OUTB1–OUTB4 outputs drive low. This behavior is confirmed in the Product Selector Guide and distinguishes it from default-high variants like MAX14936AAWE+.
Which safety certifications does the MAX14936DAWE+ hold?
The MAX14936DAWE+ is certified to UL1577 (5000VRMS), cUL (CSA 5A), VDE 0884-11 Basic Insulation (8400VPK transient, 1200VPK repetitive peak), and IEC 61000-4-5 ±10kV surge. These approvals are documented in file E351759 (UL/cUL) and 5015017-4880-0001/272147/TL7/SCT (VDE).
Can the MAX14936DAWE+ operate with different supply voltages on each side?
Yes, the MAX14936DAWE+ supports independent 1.71V–5.5V supplies on Side A (VDDA/GNDA) and Side B (VDDB/GNDB), enabling level translation between disparate logic families-e.g., 1.8V FPGA core and 5V fieldbus transceivers-without external level shifters.
MAX14936DAWE+ 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:
- 5000Vrms
- 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
MAX14936DAWE+ FAQ
1.How can I place an order for MAX14936DAWE+ through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX14936DAWE+ 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 MAX14936DAWE+ reliable?
The price and inventory of MAX14936DAWE+ are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX14936DAWE+ is usually 5 days.
3.What payment methods are accepted for MAX14936DAWE+?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX14936DAWE+ transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX14936DAWE+?
MAX14936DAWE+ orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX14936DAWE+ 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 MAX14936DAWE+?
For technical support, including MAX14936DAWE+ datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX14936DAWE+ requirements.
6.How does Aetrix verify that MAX14936DAWE+ is sourced from the original manufacturer or authorized distributors?
All MAX14936DAWE+ 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 MAX14936DAWE+ meets industry standards.
7.What is the process for return or replacement of MAX14936DAWE+?
All MAX14936DAWE+ units undergo pre-shipment inspection (PSI). If there is an issue with MAX14936DAWE+, 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 MAX14936DAWE+ part is unused and in its original packaging.
Return procedure for MAX14936DAWE+:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
MAX14936DAWE+ Tags
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