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Analog Devices Inc./Maxim Integrated MAX14936DAWE+T
- Part No.:
- MAX14936DAWE+T
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Digital Isolators
- Package:
- 16-SOIC (0.295", 7.50mm Width)
- Datasheet:
-
MAX14936DAWE+T.pdf
- Description:
- DGTL ISO 5000VRMS 4CH GP 16SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:3,000
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Product details
Overview
MAX14936DAWE+T 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 for SPI, RS-485, and multichannel I/O in industrial fieldbus and battery management systems.
For engineers reviewing the MAX14936DAWE+T datasheet, MAX14936DAWE+T pinout, MAX14936DAWE+T application, or MAX14936DAWE+T equivalent, key selection criteria include its 150Mbps maximum data rate, 5kVRMS isolation rating, 1.71V–5.5V supply flexibility, and SOIC-16 wide-body package with 8mm creepage/clearance.
Technical Context
The MAX14936DAWE+T implements capacitive isolation using Maxim's proprietary process, supporting only unidirectional channel flow (A→B and B→A) with two independent enable inputs (ENA/ENB). Its architecture delivers 25kV/µs common-mode transient immunity and sub-8ns propagation delay at 5V supplies.
It features integrated undervoltage lockout (1.45V threshold), 2µA internal pullups on EN pins, and operates across –40°C to +125°C ambient. The device supports level translation between mismatched logic domains while maintaining full safety certification under UL1577, VDE 0884-11, and IEC 61000-4-5 surge standards.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Isolation Rating | 5000VRMS withstand for 60s; enables safety-critical industrial and medical system design |
| Max Data Rate | 150Mbps - supports high-speed serial interfaces like isolated SPI and fast digital I/O |
| Supply Range | 1.71V to 5.5V per side - allows direct interfacing with 1.8V, 2.5V, 3.3V, and 5V microcontrollers/FPGAs |
| Propagation Delay | 5.1ns (typ) at 5V - ensures timing-critical signal integrity in high-frequency control loops |
| CMTI | 25kV/µs - maintains reliable operation in noisy motor drive and power converter environments |
| Operating Temp | –40°C to +125°C - qualified for under-hood automotive, industrial PLC, and battery pack monitoring |
| Package | 16-pin wide SOIC (10.3mm × 7.5mm) - provides 8mm creepage/clearance for reinforced insulation compliance |
Pinout & Package
MAX14936DAWE+T uses a 16-pin wide-body SOIC package (W16M+8, outline 21-0042) with 10.3mm × 7.5mm footprint, 8mm minimum creepage and clearance, and RoHS-compliant lead finish.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDDA (Pin 1) | Side A power supply | Supplies isolated logic side A; requires local 0.1µF ceramic bypass to GNDA |
| GNDA (Pins 2,8) | Side A ground reference | Return path for all Side A signals; must be separated from GNDB by isolation barrier |
| INA1–INA2 (Pins 3,4) | Side A input channels | Drive OUTB1–OUTB2 respectively; accept 1.71V–5.5V logic levels referenced to GNDA |
| ENA (Pin 7) | Side A enable input | Active-high; internal 2µA pullup to VDDA - enables/disables OUTA1/OUTA2 outputs |
| GNDB (Pins 9,15) | Side B ground reference | Return path for all Side B signals; galvanically isolated from GNDA |
| ENB (Pin 10) | Side B enable input | Active-high; internal 2µA pullup to VDDB - enables/disables OUTB1–OUTB4 outputs |
| INB1–INB2 (Pins 11,12) | Side B input channels | Drive OUTA1–OUTA2 respectively; accept 1.71V–5.5V logic levels referenced to GNDB |
| OUTA1–OUTA2 (Pins 6,12) | Side A output channels | Driven by INB1–INB2; default-low state when ENA inactive; rail-to-rail CMOS outputs |
| OUTB1–OUTB4 (Pins 13,14,12,11) | Side B output channels | Driven by INA1–INA4; default-low state when ENB inactive; 4mA drive capability |
| VDDB (Pin 16) | Side B power supply | Supplies isolated logic side B; requires local 0.1µF ceramic bypass to GNDB |
Key Features
| Feature | Design Value |
|---|---|
| 150Mbps data rate | Enables real-time isolation of high-speed SPI clock/data lines without bottlenecks |
| 5kVRMS isolation | Meets reinforced insulation requirements for industrial safety standards (IEC 61010, UL1577) |
| 1.71V–5.5V dual supply | Eliminates external level shifters when interfacing mixed-voltage controllers and peripherals |
| 25kV/µs CMTI | Prevents data corruption in high-noise environments such as motor drives and HV inverters |
| Default-low output state | Ensures safe, known output condition during power-up, brownout, or enable deassertion |
| –40°C to +125°C operation | Supports deployment in harsh environments including battery packs and factory-floor automation |
Applications
| Industrial Fieldbus Isolation | Isolated SPI Interface |
|---|---|
Use Scenario: Isolating RS-485 transceivers in programmable logic controllers (PLCs) operating in electrically noisy factory environments. IC Role / Device Role / Timing Role: Provides bidirectional galvanic isolation between controller MCU (Side A) and bus transceiver (Side B), preventing ground loop currents and noise coupling. Use Value: Enables reliable communication over 1200m cable runs at 10Mbps while meeting IEC 61000-4-5 surge immunity (±10kV) and 848VRMS working voltage requirements. | Use Scenario: Isolating high-speed SPI signals between an FPGA and isolated ADC/DAC in precision test equipment. IC Role / Device Role / Timing Role: Transfers SCLK, MOSI, MISO, and CS signals across isolation barrier with matched propagation delays and <1ns skew. Use Value: Maintains 150Mbps SPI throughput with <8ns tPLH/tPHL and <1ns pulse-width distortion, preserving timing margins in multi-MSPS sampling systems. |
| Battery Management Systems | Medical Sensor Interfaces |
Use Scenario: Isolating cell voltage monitoring ICs from host MCU in EV battery packs with 400–800V DC bus potentials. IC Role / Device Role / Timing Role: Transfers digital status and fault signals from isolated analog front-end (Side B) to main controller (Side A) while blocking high-voltage transients. Use Value: Supports ASIL-B functional safety via 5kVRMS isolation, 1200VP repetitive peak rating, and 150°C junction temperature capability for under-hood thermal conditions. | Use Scenario: Isolating patient-connected ECG/EEG sensor nodes from hospital-grade data acquisition units. IC Role / Device Role / Timing Role: Provides basic insulation barrier between low-power analog sensor domain (Side B) and digital processing domain (Side A). Use Value: Meets IEC 60601-1 3rd edition requirements with 848VRMS working voltage, 1MOOP, and VDE 0884-11 certified basic insulation. |
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 isolation, SOIC-16, default-high outputs | Limited to lower data rates and isolation voltage; not suitable for 150Mbps SPI or 5kVRMS fieldbus | Select when cost sensitivity outweighs speed/isolation needs and default-high behavior is acceptable |
| SI8642ED-B-IS | 4-channel, 150Mbps, 5kVRMS, SOIC-16, default-low outputs, but no EN pins | Lacks independent enable control per side - reduces flexibility in partial-system power-down schemes | Choose when enable functionality is unnecessary and pin compatibility with existing Si86xx layouts is required |
Compared with ADUM2402BRWZ and SI8642ED-B-IS, the MAX14936DAWE+T uniquely combines 150Mbps speed, 5kVRMS isolation, default-low outputs, and dual independent enables - enabling high-fidelity, safety-certified isolation in thermally demanding, high-noise industrial and energy storage systems.
Availability
MAX14936DAWE+T is available at Aetrix Electronics and suitable for industrial fieldbus communications, isolated SPI interfaces, battery management systems, medical sensor interfaces, and high-reliability embedded control requiring stable component supply and long-term lifecycle support.
Supply support for MAX14936DAWE+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
Maxim Integrated, now part of Analog Devices, designs precision analog, mixed-signal, and high-reliability interface ICs for industrial, automotive, and healthcare applications.
The MAX14934–MAX14936 family was engineered specifically for high-speed, high-isolation digital signal transfer in harsh environments - targeting fieldbus, motor control, and energy storage systems where reliability, speed, and safety certification are non-negotiable.
FAQ
What is the maximum data rate supported by the MAX14936DAWE+T?
The MAX14936DAWE+T supports a maximum data rate of 150Mbps, verified across its full operating temperature range (–40°C to +125°C) and supply range (1.71V to 5.5V per side). This performance is achieved with typical propagation delay of 5.1ns and pulse-width distortion under 1ns at 5V supplies, making it suitable for high-speed isolated SPI and digital I/O applications.
Does the MAX14936DAWE+T have built-in enable functionality, and how does it operate?
Yes, the MAX14936DAWE+T features two independent active-high enable inputs: ENA (Pin 7) controls Side A outputs (OUTA1/OUTA2), and ENB (Pin 10) controls Side B outputs (OUTB1–OUTB4). Each has an internal 2µA pullup to its respective supply (VDDA or VDDB), ensuring outputs enter their default-low state when the enable is deasserted or unpowered.
What safety certifications does the MAX14936DAWE+T hold?
The MAX14936DAWE+T is certified to UL1577 (5000VRMS), CSA C22.2 No. 5A (cUL), VDE 0884-11:2017 (Basic Insulation), and meets IEC 61000-4-5 surge immunity (±10kV). It is rated for 848VRMS working voltage and 1200VP repetitive peak voltage, qualifying it for reinforced insulation in industrial and medical applications per IEC 61010-1 and IEC 60601-1.
Can the MAX14936DAWE+T operate with mismatched supply voltages on each side?
Yes, the MAX14936DAWE+T supports independent 1.71V to 5.5V supplies on Side A (VDDA/GNDA) and Side B (VDDB/GNDB). This enables seamless level translation - for example, interfacing a 1.8V FPGA I/O bank with a 3.3V RS-485 transceiver - without external level shifters, while maintaining full isolation integrity and timing specifications.
What is the default output state of the MAX14936DAWE+T when the enable pin is inactive?
The MAX14936DAWE+T has a default-low output configuration. When ENA or ENB is deasserted (low), the corresponding outputs (OUTA1/OUTA2 or OUTB1–OUTB4) enter a logic-low state - not high-impedance. This fail-safe behavior ensures predictable signal levels during power sequencing, brownout, or system reset, critical for safety-critical control paths.
MAX14936DAWE+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:
- 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+T FAQ
1.How can I place an order for MAX14936DAWE+T through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX14936DAWE+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 MAX14936DAWE+T reliable?
The price and inventory of MAX14936DAWE+T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX14936DAWE+T is usually 5 days.
3.What payment methods are accepted for MAX14936DAWE+T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX14936DAWE+T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX14936DAWE+T?
MAX14936DAWE+T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX14936DAWE+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 MAX14936DAWE+T?
For technical support, including MAX14936DAWE+T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX14936DAWE+T requirements.
6.How does Aetrix verify that MAX14936DAWE+T is sourced from the original manufacturer or authorized distributors?
All MAX14936DAWE+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 MAX14936DAWE+T meets industry standards.
7.What is the process for return or replacement of MAX14936DAWE+T?
All MAX14936DAWE+T units undergo pre-shipment inspection (PSI). If there is an issue with MAX14936DAWE+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 MAX14936DAWE+T part is unused and in its original packaging.
Return procedure for MAX14936DAWE+T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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