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Analog Devices Inc./Maxim Integrated MAX14936EAWE+T
- Part No.:
- MAX14936EAWE+T
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Digital Isolators
- Package:
- 16-SOIC (0.295", 7.50mm Width)
- Datasheet:
-
MAX14936EAWE+T.pdf
- Description:
- DGTL ISO 5000VRMS 4CH GP 16SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:1,704
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Product details
Overview
MAX14936EAWE+T from Maxim Integrated is a four-channel, unidirectional, 5kVRMS digital isolator with 150Mbps data rate, default-low output configuration, and independent 1.71V–5.5V dual-supply operation across isolated domains. It enables robust galvanic isolation in industrial fieldbus interfaces, isolated SPI/RS-485 transceivers, and battery management systems operating up to +125°C ambient.
For engineers reviewing the MAX14936EAWE+T datasheet, MAX14936EAWE+T pinout, MAX14936EAWE+T application, or MAX14936EAWE+T equivalent, key selection criteria include its 150Mbps maximum data rate, 5.1ns typical propagation delay (tPLH), 25kV/µs common-mode transient immunity, and SOIC-16 wide-body package with 8mm creepage/clearance for reinforced insulation compliance.
Technical Context
The MAX14936EAWE+T implements capacitive isolation with differential signaling per channel, supporting only unidirectional A→B and B→A signal paths (2×2 channel split). Its architecture delivers 150Mbps operation with <1ps pulse-width distortion at 5V supplies and maintains 25kV/µs CMTI across full temperature range (-40°C to +125°C).
It features active-high enable inputs (ENA/ENB) with internal 2µA pullups, undervoltage lockout (1.58V threshold), and supports level translation between 1.71V and 5.5V logic on either side. The device is certified to UL1577, VDE 0884-11 (Basic Insulation), and IEC 61000-4-5 ±10kV surge.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Isolation Rating | 5000VRMS withstand for 60s; 848VRMS continuous working voltage (VIOWM) |
| Max Data Rate | 150Mbps - enables high-speed isolated serial links without protocol overhead |
| Propagation Delay | 5.1ns (tPLH, typ) at 5V - supports tight timing budgets in real-time control loops |
| CMTI | 25kV/µs - prevents false triggering in noisy motor drive or power supply environments |
| 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 and industrial PLC applications |
| Package | 16-pin wide SOIC (10.3mm × 7.5mm) - meets IPC-7351B land pattern 90-0107 |
Pinout & Package
Package: 16-pin wide-body SOIC (W16M+8), 10.3mm × 7.5mm body, 8mm minimum creepage/clearance, RoHS-compliant.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 16 | VDDA / VDDB | Independent logic-side (A) and field-side (B) power supplies - require local 0.1µF ceramic bypass |
| 2, 8, 9, 15 | GNDA / GNDB | Separate ground references per isolation domain - no shared ground connection allowed |
| 3–6 | INA1–INA4 | Unidirectional inputs on Side A - drive corresponding OUTB1–OUTB4 outputs |
| 11–14 | OUTB1–OUTB4 | Unidirectional outputs on Side B - default-low state when input unpowered |
| 7, 10 | ENA / ENB | Active-high enable controls output drivers - internal 2µA pullup to respective VDD |
| 12 | INB1 | Side B input - drives OUTA1 (bidirectional path not supported in MAX14936 variant) |
| 13 | INB2 | Side B input - drives OUTA2 (only two B→A channels implemented) |
Key Features
| Feature | Design Value |
|---|---|
| 150Mbps data rate | Enables isolated high-speed sensor interfaces and real-time feedback loops without serialization latency |
| 5.1ns propagation delay | Reduces timing uncertainty in closed-loop motor control and precision ADC sampling synchronization |
| 25kV/µs CMTI | Ensures reliable operation in variable-frequency drives and switch-mode power supplies with fast dv/dt edges |
| 1.71V–5.5V dual supply | Eliminates external level shifters when connecting 1.8V FPGAs to 5V industrial I/O modules |
| VDE 0884-11 certification | Meets reinforced insulation requirements for medical equipment (IEC 60601-1) and industrial safety systems |
Applications
| Industrial Fieldbus Isolation | Isolated SPI Interface |
|---|---|
Use Scenario: Isolating RS-485 transceivers in programmable logic controllers (PLCs) exposed to 2kV surge events and 100V common-mode noise. IC Role / Device Role / Timing Role: Four-channel unidirectional isolator separating controller-side logic (INA1–INA4) from bus-side drivers (OUTB1–OUTB4), with ENB enabling/disabling bus transceivers. Use Value: 5000VRMS isolation rating and ±10kV IEC 61000-4-5 surge immunity prevent system-level latch-up during lightning-induced transients. | Use Scenario: Isolating SPI clock, MOSI, MISO, and CS signals between an MCU and isolated ADC in a high-voltage energy meter. IC Role / Device Role / Timing Role: Provides matched propagation delay (tPLH/tPHL skew <1ns) across all four channels to preserve SPI timing margins at 20MHz SCLK. Use Value: 150Mbps capability and <1ps pulse-width distortion ensure setup/hold time compliance even at maximum SPI clock rates. |
| Battery Management System (BMS) | Medical Sensor Isolation |
Use Scenario: Isolating cell voltage monitoring and balancing signals in 800V EV battery packs where ground potential differences exceed 500V. IC Role / Device Role / Timing Role: Transfers analog front-end status bits and fault flags from high-side monitoring ICs (Side B) to low-side MCU (Side A) via INA1–INA4 → OUTB1–OUTB4 paths. Use Value: 125°C ambient rating and 848VRMS working voltage support long-term reliability in thermally constrained battery enclosures. | Use Scenario: Isolating ECG/EEG front-end amplifiers from digital processing units in Class II medical devices requiring 1 MOOP protection. IC Role / Device Role / Timing Role: Provides basic insulation per IEC 60601-1 ed.3 using VDE-certified barrier with 1200VP repetitive peak voltage rating. Use Value: 2pF inter-side capacitance minimizes signal coupling noise in sub-µV biomedical signal paths. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar digital isolator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ADUM4402BRIZ | 4-channel, 100Mbps, 3.75kVRMS, 2.7–5.5V supply, SOIC-16 | Limited to 100Mbps and lower isolation rating - insufficient for 150Mbps SPI or 5kVRMS fieldbus | Select MAX14936EAWE+T when 150Mbps speed or 5kVRMS isolation is mandatory |
| SI8642ED-B-IS | 4-channel, 150Mbps, 5kVRMS, 2.5–5.5V supply, SOIC-16 | Default-high outputs and different pinout - requires PCB redesign and firmware logic inversion | Choose MAX14936EAWE+T for drop-in replacement in existing designs specifying default-low behavior |
Compared with ADUM4402BRIZ and SI8642ED-B-IS, the MAX14936EAWE+T uniquely combines 150Mbps speed, 5kVRMS isolation, default-low outputs, and VDE 0884-11 certification in a pin-compatible SOIC-16 package - making it optimal for next-generation industrial and medical isolation where timing, safety, and signal integrity are co-constrained.
Availability
MAX14936EAWE+T is available at Aetrix Electronics and suitable for industrial fieldbus communications, isolated SPI interfaces, and battery management systems requiring stable component supply across extended temperature and high-reliability lifecycles.
Supply support for MAX14936EAWE+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 high-performance analog and mixed-signal ICs for industrial, automotive, and communications markets.
The MAX14934–MAX14936 family targets high-reliability galvanic isolation in harsh environments, with emphasis on speed, safety certification, and wide supply voltage flexibility for multi-rail systems.
FAQ
What is the maximum data rate supported by the MAX14936EAWE+T?
The MAX14936EAWE+T supports a maximum data rate of 150Mbps, verified across all supply voltages (1.71V–5.5V) and temperatures (-40°C to +125°C). This is confirmed in the Dynamic Electrical Characteristics table for MAX1493_C/F variants, where DRMAX = 150Mbps is explicitly specified. The device achieves this with 5.1ns typical propagation delay and <1ps pulse-width distortion at 5V supplies.
Does the MAX14936EAWE+T have default-high or default-low outputs?
The MAX14936EAWE+T has default-low outputs. This is indicated by the "E" suffix in the part number per Maxim's Product Selector Guide, where "E" denotes default-low configuration (output goes low when input is unpowered). The functional diagram and pin description confirm that INA1–INA4 drive OUTB1–OUTB4 with default-low behavior, distinguishing it from "D" (default-high) variants like MAX14936DAWE+T.
What safety certifications does the MAX14936EAWE+T hold?
The MAX14936EAWE+T is certified to UL1577 (File E351759), cUL (CSA Bulletin 5A), VDE 0884-11:2017-01 (Basic Insulation), and tested per IEC 61000-4-5 for ±10kV surge. It meets IEC 60950-1 and IEC 61010-1 for 848VRMS working voltage, and IEC 60601-1 for medical applications requiring 1 MOOP. These certifications are documented in the Safety Regulatory Approvals section of the datasheet.
What is the common-mode transient immunity (CMTI) of the MAX14936EAWE+T?
The MAX14936EAWE+T has a guaranteed common-mode transient immunity (CMTI) of 25kV/µs, applicable across the full operating temperature range (-40°C to +125°C) and all supply voltages. This value is specified in the Dynamic Electrical Characteristics tables for MAX1493_C/F and is measured with transient generator connected between GNDA and GNDB at 1000V common-mode voltage, ensuring robust operation in high-noise motor drive and power conversion systems.
Can the MAX14936EAWE+T be used for bidirectional I²C isolation?
No, the MAX14936EAWE+T cannot be used for bidirectional I²C isolation. It is a unidirectional isolator with fixed channel direction: INA1–INA4 → OUTB1–OUTB4 and INB1–INB2 → OUTA1–OUTA2. I²C requires true bidirectional open-drain signaling on the same line, which demands dedicated bidirectional isolators like the MAX14937. Using MAX14936EAWE+T for I²C would require external circuitry and fail to meet protocol timing and electrical requirements.
MAX14936EAWE+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:
- 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
MAX14936EAWE+T FAQ
1.How can I place an order for MAX14936EAWE+T through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX14936EAWE+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 MAX14936EAWE+T reliable?
The price and inventory of MAX14936EAWE+T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX14936EAWE+T is usually 5 days.
3.What payment methods are accepted for MAX14936EAWE+T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX14936EAWE+T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX14936EAWE+T?
MAX14936EAWE+T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX14936EAWE+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 MAX14936EAWE+T?
For technical support, including MAX14936EAWE+T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX14936EAWE+T requirements.
6.How does Aetrix verify that MAX14936EAWE+T is sourced from the original manufacturer or authorized distributors?
All MAX14936EAWE+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 MAX14936EAWE+T meets industry standards.
7.What is the process for return or replacement of MAX14936EAWE+T?
All MAX14936EAWE+T units undergo pre-shipment inspection (PSI). If there is an issue with MAX14936EAWE+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 MAX14936EAWE+T part is unused and in its original packaging.
Return procedure for MAX14936EAWE+T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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