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Analog Devices Inc./Maxim Integrated MAX14932AASE+
- Part No.:
- MAX14932AASE+
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Digital Isolators
- Package:
- 16-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
MAX14932AASE+.pdf
- Description:
- DGTL ISO 2750VRMS 4CH GP 16SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:3,266
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Product details
Overview
MAX14932AASE+ 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 across isolated domains. It features default-low output configuration, 6.67ns minimum pulse width, and operates from –40°C to +125°C - enabling robust signal isolation in industrial fieldbus and battery management systems.
For engineers reviewing the MAX14932AASE+ datasheet, MAX14932AASE+ pinout, MAX14932AASE+ application, or MAX14932AASE+ equivalent, this device delivers high-speed, low-jitter isolation for SPI/RS-485 interfaces where safety-rated insulation, channel-to-channel skew <1.6ns (typ), and ESD tolerance ±4kV are critical selection criteria.
Technical Context
The MAX14932AASE+ 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 level translation without external components. Its architecture includes integrated enable inputs (ENA/ENB) per side for three-state control and glitch rejection of 15ns.
It belongs to the MAX1493x family optimized for high CMTI (25kV/µs), low propagation delay skew (<3ns channel-to-channel same-direction), and precise timing integrity - verified under IEC 60747-5-5 with VIOWM = 443VRMS and VIORM = 630VPK - making it suitable for noise-prone motor drives and medical isolation barriers.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Isolation Rating | 2.75kVRMS withstand (60s), 443VRMS continuous working voltage - meets UL1577, VDE 0884-11 Basic Insulation |
| Max Data Rate | 150Mbps - supports high-speed SPI clocking and real-time sensor data streaming without timing bottlenecks |
| Propagation Delay | 4.9–14.9ns (tPHL/tPLH, voltage-dependent) - enables sub-10ns timing budgets in closed-loop control loops |
| Channel Skew | <1.6ns (same-direction), <7.9ns (opposing-direction) - preserves signal alignment across multi-bit buses |
| Supply Range | 1.71V–5.5V per side - allows direct interfacing with 1.8V FPGAs and 5V microcontrollers without level shifters |
| CMTI | 25kV/µs - rejects fast transients in motor drive gate driver feedback paths and HV battery monitoring |
| ESD Protection | ±4kV HBM - ensures robustness during board handling and system integration |
Pinout & Package
MAX14932AASE+ is housed in a 16-pin wide-body SOIC package (10.3mm × 7.5mm, creepage/clearance = 8mm), RoHS-compliant, with exposed pad not present. 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 isolated input-side logic; referenced to INA_/ENA signals |
| VDDB / GNDB | Side B power and ground | Supplies isolated output-side logic; referenced to OUTB_/ENB signals |
| INA1–INA4 | Input channels A1–A4 | Unidirectional logic inputs referenced to GNDA; accept 1.71V–5.5V CMOS levels |
| OUTB1–OUTB4 | Output channels B1–B4 | Unidirectional CMOS outputs referenced to GNDB; drive 4mA sink/source |
| ENA / ENB | Enable controls | Active-high enables output drivers; tri-states OUTB_ when low |
Key Features
| Feature | Design Value |
|---|---|
| 150Mbps data rate with 6.67ns pulse width | Enables high-resolution encoder feedback and fast ADC data isolation without oversampling penalties |
| Sub-1ns pulse-width distortion (PWD) | Maintains duty-cycle fidelity in PWM-based isolated gate drivers and timing-critical serial links |
| 25kV/µs common-mode transient immunity | Prevents false triggering in variable-frequency drives with rapid bus switching (e.g., IGBT turn-off) |
| Independent dual supplies (1.71V–5.5V) | Eliminates external level translators when interfacing mixed-voltage SoCs and sensors |
| Default-low output state | Ensures safe de-energized state on power-up or input loss in safety-critical PLC I/O modules |
| VIOWM = 443VRMS, VIORM = 630VPK | Supports basic insulation compliance for IEC 61010-1 (industrial test equipment) and IEC 60601-1 (1 MOOP) |
Applications
| Industrial Fieldbus Isolation | SPI Interface Isolation |
|---|---|
Use Scenario: Isolating RS-485 transceivers in distributed I/O modules within factory automation networks. IC Role / Device Role / Timing Role: Unidirectional signal coupler between controller MCU (side A) and bus PHY (side B), preserving timing integrity across 1200m cable runs. Use Value: Prevents ground loop currents and common-mode noise from disrupting Modbus RTU communication at up to 115.2kbps. |
Use Scenario: Isolating high-speed SPI between an FPGA and isolated ADC/DAC in motor control inverters. IC Role / Device Role / Timing Role: Four-channel unidirectional isolator for SCLK/MOSI/MISO/CS lines, maintaining <1.6ns channel skew for synchronized sampling. Use Value: Enables 150Mbps SPI clocking while meeting IEC 61800-5-1 reinforced insulation requirements for drive safety stages. |
| Battery Management Systems | Medical Sensor Isolation |
Use Scenario: Isolating cell voltage monitor ICs from host MCU in EV traction battery packs operating at >800V DC bus. IC Role / Device Role / Timing Role: Side A receives digital status from isolated analog front-end; side B communicates with safety MCU over UART/SPI. Use Value: Provides 2.75kVRMS isolation barrier compliant with UL 62368-1 and IEC 62619 for functional safety in BMS fault reporting. |
Use Scenario: Isolating patient-connected ECG/EEG front-end signals from digital processing unit in diagnostic equipment. IC Role / Device Role / Timing Role: Digital isolator for SPI-configured sensor registers and status flags, referenced to patient-ground-referenced analog domain. Use Value: Meets IEC 60601-1 3rd ed. requirements for 1 MOOP, 443VRMS working voltage, and 10kV surge immunity (IEC 61000-4-5). |
Equivalent & Alternatives
The following parts are listed as comparable options for similar digital isolator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| Si8642ED-IS | 4-channel, 2.5kVRMS, 150Mbps, default-high output, 16-pin narrow SOIC (9.9mm × 3.9mm) | Lacks default-low safety state; lower creepage (4mm) limits use in high-pollution industrial environments | Select when PCB space is constrained and default-high logic aligns with system reset behavior |
| ISO6741FDWR | 4-channel, 5kVRMS, 50Mbps, 16-pin SOIC, 1.65V–5.5V supply, no enable pins | Lower speed and no EN control restrict use in high-bandwidth SPI or dynamic power-gated systems | Choose when higher isolation rating (5kVRMS) is mandatory for medical or grid-tied applications, accepting bandwidth trade-off |
Compared with MAX14932AASE+, Si8642ED-IS offers smaller footprint but reduced safety margin and missing default-low fail-safe, while ISO6741FDWR provides superior isolation voltage at half the data rate and no enable functionality - making MAX14932AASE+ optimal for high-speed, safety-critical industrial designs requiring configurable output state.
Availability
MAX14932AASE+ is available at Aetrix Electronics and suitable for industrial fieldbus communications, isolated SPI interfaces, and battery management systems requiring stable component supply, long-term lifecycle support, and full regulatory certification documentation.
Supply support for MAX14932AASE+ 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-reliability, high-speed digital isolation in harsh environments - emphasizing CMTI, timing precision, and safety certification compliance for industrial automation and energy infrastructure.
FAQ
What is the maximum operating temperature for MAX14932AASE+?
The MAX14932AASE+ is rated for operation from –40°C to +125°C ambient temperature, with a maximum junction temperature of +150°C. Thermal derating curves in the datasheet define safe power limits across this range, and the device is 100% production tested at +125°C to ensure reliability in extended-temperature industrial applications.
Does MAX14932AASE+ support bidirectional communication?
No, MAX14932AASE+ is a unidirectional 4-channel isolator (A→B only). For bidirectional protocols like I²C, Analog Devices specifies the MAX14933 family. The MAX14932AASE+ pinout and internal architecture lack complementary input/output pairs required for true bidirectional signaling.
What safety certifications does MAX14932AASE+ hold?
MAX14932AASE+ is certified to UL1577 (3750VRMS), CSA C22.2 No. 5A (cUL), VDE 0884-11:2017 (Basic Insulation), TUV, and IEC 60950-1/61010-1/60601-1. It achieves 2.75kVRMS withstand voltage, 443VRMS working voltage, and 10kV surge immunity per IEC 61000-4-5 - documented in file E351759.
Can MAX14932AASE+ operate with different supply voltages on each side?
Yes, MAX14932AASE+ supports independent supplies: VDDA = 1.71V–5.5V (side A) and VDDB = 1.71V–5.5V (side B). This enables seamless level translation - e.g., 1.8V FPGA I/O to 3.3V or 5V peripheral logic - without external translators, reducing BOM count and layout complexity.
What is the meaning of the "AASE+" suffix in MAX14932AASE+?
The "AASE+" suffix denotes a specific variant: "AA" indicates 150Mbps speed grade and default-low output configuration; "SE" specifies the 16-pin wide-body SOIC package (10.3mm × 7.5mm); "+" confirms RoHS-compliant, lead-free, and green packaging per Analog Devices' standard marking convention.
MAX14932AASE+ Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Series:
- -
- Package/Case:
- 16-SOIC (0.154", 3.90mm 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
MAX14932AASE+ FAQ
1.How can I place an order for MAX14932AASE+ through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX14932AASE+ 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 MAX14932AASE+ reliable?
The price and inventory of MAX14932AASE+ are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX14932AASE+ is usually 5 days.
3.What payment methods are accepted for MAX14932AASE+?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX14932AASE+ transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX14932AASE+?
MAX14932AASE+ orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX14932AASE+ 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 MAX14932AASE+?
For technical support, including MAX14932AASE+ datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX14932AASE+ requirements.
6.How does Aetrix verify that MAX14932AASE+ is sourced from the original manufacturer or authorized distributors?
All MAX14932AASE+ 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 MAX14932AASE+ meets industry standards.
7.What is the process for return or replacement of MAX14932AASE+?
All MAX14932AASE+ units undergo pre-shipment inspection (PSI). If there is an issue with MAX14932AASE+, 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 MAX14932AASE+ part is unused and in its original packaging.
Return procedure for MAX14932AASE+:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
MAX14932AASE+ Tags
-
ISO1212DBQR
Texas Instruments
-
ISO6721BDR
Texas Instruments
-
SI8710AC-B-ISR
Skyworks Solutions Inc.
-
ISO7720FDR
Texas Instruments
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ISO7721DR
Texas Instruments
-
ISO7721FDR
Texas Instruments
-
SI8710CC-B-ISR
Skyworks Solutions Inc.
-
ISO6741FQDWRQ1
Texas Instruments
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ISO7721DWVR
Texas Instruments
-
ISO7762FDBQR
Texas Instruments
-
ISO7741DWR
Texas Instruments
-
ISO7741FDWR
Texas Instruments
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