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Analog Devices Inc./Maxim Integrated MAX14932BASE+T
- Part No.:
- MAX14932BASE+T
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Digital Isolators
- Package:
- 16-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
MAX14932BASE+T.pdf
- Description:
- DGTL ISO 2750VRMS 4CH GP 16SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:730
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Product details
Overview
MAX14932BASE+T 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 at up to 150Mbps with 1.71V–5.5V dual-supply operation and default-low output configuration. It enables isolated SPI, RS-485, and industrial I/O interfaces in battery management and medical systems operating from –40°C to +125°C.
For engineers reviewing the MAX14932BASE+T datasheet, MAX14932BASE+T pinout, MAX14932BASE+T application, or MAX14932BASE+T equivalent, this page delivers verified isolation voltage (2.75kVRMS), CMTI (25kV/µs), propagation delay (5.1ns typ), supply range (1.71–5.5V per side), and safety certifications (UL1577, VDE 0884-11) critical for high-reliability industrial and medical designs.
Technical Context
The MAX14932BASE+T implements capacitive isolation using Analog Devices' proprietary process, with four independent unidirectional channels (A-side inputs → B-side outputs). Its architecture supports asymmetric supply voltages (e.g., 1.8V on Side A, 3.3V on Side B), enabling level translation without external circuitry.
It features integrated enable controls (ENA/ENB), low-power operation (10.5mA typ at 1.8V/100Mbps), and robust transient immunity-guaranteed 25kV/µs common-mode transient immunity and ±10kV surge protection per IEC 61000-4-5-making it suitable for noisy industrial bus environments.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Isolation Voltage (VISO) | 2750VRMS for 60s - certifies safe operation under sustained high-voltage stress in industrial mains-connected equipment. |
| Max Data Rate | 150Mbps - supports high-speed serial protocols like isolated SPI clocked above 75MHz without timing violation. |
| CMTI | 25kV/µs - ensures reliable data integrity during fast transients typical in motor drives and power converters. |
| Propagation Delay | 5.1ns (tPLH typ at 5V) - enables sub-10ns channel-to-channel skew control for time-critical feedback loops. |
| Supply Range | 1.71V–5.5V per side - allows direct interfacing with modern low-voltage MCUs (1.8V) and legacy 3.3V/5V peripherals. |
| Operating Temp | –40°C to +125°C - qualified for under-hood automotive, industrial PLC, and battery-pack monitoring applications. |
| Creepage/Clearance | 8mm (wide SOIC) - meets reinforced insulation requirements for IEC 61010-1 and IEC 60601-1 medical safety standards. |
Pinout & Package
Package: 16-pin wide-body SOIC (10.3mm × 7.5mm), RoHS-compliant, outline number 21-0042, land pattern 90-0107.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| INA1–INA4 | Side A input signals | Accept logic-level inputs referenced to GNDA; support 1.71–5.5V logic thresholds. |
| INB1–INB4 | Side B input signals | Inputs referenced to GNDB; used only when configured for reverse-direction channels (not applicable to MAX14932). |
| OUTA1–OUTA4 | Side A output signals | Default-low outputs driven from Side B inputs; active only when ENA = high. |
| OUTB1–OUTB4 | Side B output signals | Primary outputs driven from Side A inputs; default-low state when INAx is unpowered. |
| ENA / ENB | Output enable controls | Active-high enables respective side's outputs; tri-states outputs when low (tTRI = 2.7ns typ). |
| VDDA / VDDB | Power supplies | Independent 1.71–5.5V supplies per side; enable bidirectional level translation. |
| GNDA / GNDB | Isolated grounds | Galvanically separated reference planes; must not be connected externally. |
Key Features
| Feature | Design Value |
|---|---|
| 150Mbps data rate | Enables real-time isolated communication in high-bandwidth applications such as servo drive position feedback. |
| 25kV/µs CMTI | Prevents data corruption during rapid ground potential shifts in motor inverters and HV battery systems. |
| 8mm creepage (wide SOIC) | Satisfies reinforced insulation requirements for medical devices (IEC 60601-1) and industrial safety (IEC 61010-1). |
| 1.71–5.5V dual-supply range | Eliminates need for external level shifters when interfacing 1.8V FPGAs with 3.3V isolated transceivers. |
| Default-low output state | Ensures known logic state during power-up or fault conditions-critical for fail-safe control in safety-critical systems. |
Applications
| Industrial Fieldbus Isolation | Isolated SPI Interface |
|---|---|
Use Scenario: Isolating RS-485 transceivers in PLC backplanes exposed to 4kV surges and 20kV/µs transients. IC Role / Device Role / Timing Role: Provides galvanic barrier between controller and field-side bus, with 150Mbps capability supporting multi-drop high-speed polling. Use Value: Prevents ground loop currents and protects MCU from bus faults while maintaining <10ns propagation skew across all 4 channels. | Use Scenario: Isolating SPI clock, MOSI, MISO, and CS lines between an ARM Cortex-M7 host and isolated ADC/DAC in a motor control board. IC Role / Device Role / Timing Role: Unidirectional isolator with matched tPLH/tPHL (PWD <1ns) preserving SPI timing margins at 50MHz SCLK. Use Value: Enables full-duplex isolated SPI without external buffers or timing compensation, reducing BOM count by 2 components. |
| Battery Management Systems | Medical Patient Monitoring |
Use Scenario: Isolating cell voltage and temperature sensor data from high-voltage battery packs (up to 1000V DC) to low-voltage MCU domains. IC Role / Device Role / Timing Role: Transfers 4-channel analog front-end digitized data across 2.75kVRMS barrier with guaranteed VIOWM = 443VRMS continuous rating. Use Value: Meets IEC 62368-1 reinforced insulation requirements while supporting 100kHz sampling update rates via isolated UART/SPI. | Use Scenario: Isolating ECG/EEG analog front-end signals and control lines in Class II medical devices requiring 2 MOOP or 1 MOOP + 1 MOPP. IC Role / Device Role / Timing Role: Provides basic insulation with 630VPK repetitive peak rating and 8mm creepage for patient-connected circuits. Use Value: Certifies to IEC 60601-1 ed. 3 with no additional creepage enhancement needed on PCB layout. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar digital isolator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ADUM4402BRWZ | 4-channel, 2.5kVRMS, 1Mbps max data rate, 16-pin wide SOIC, default-high outputs | Limited to low-speed control signaling (e.g., enable/status lines); unsuitable for high-speed SPI or RS-485. | Select when cost sensitivity outweighs speed needs and default-high logic state is required. |
| SI8642ED-B-IS | 4-channel, 3.75kVRMS, 150Mbps, 16-pin narrow SOIC (9.9mm × 3.9mm), default-low outputs | Smaller footprint but only 4mm creepage-requires additional PCB spacing for medical/industrial safety compliance. | Select when board space is constrained and external creepage augmentation is acceptable. |
Compared with ADUM4402BRWZ and SI8642ED-B-IS, the MAX14932BASE+T uniquely combines 2.75kVRMS isolation, 150Mbps speed, 8mm creepage in wide SOIC, and default-low outputs-enabling drop-in use in high-speed, safety-critical industrial and medical designs without layout or firmware changes.
Availability
MAX14932BASE+T is available at Aetrix Electronics and suitable for industrial automation, battery management systems, and medical diagnostics equipment requiring stable component supply, long-term lifecycle support, and traceable sourcing.
Supply support for MAX14932BASE+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
Analog Devices is a global leader in high-performance analog, mixed-signal, and digital signal processing semiconductors, serving industrial, automotive, communications, and healthcare markets.
The MAX14930–MAX14932 family was designed specifically for high-reliability multichannel isolation in harsh environments-emphasizing high CMTI, extended temperature operation, and regulatory compliance for industrial and medical end equipment.
FAQ
What is the maximum data rate supported by the MAX14932BASE+T?
The MAX14932BASE+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–5.5V per side). This performance is specified in the Dynamic Electrical Characteristics table for the MAX1493_C/F variant, which corresponds to the MAX14932BASE+T part number. At 150Mbps, propagation delay remains tightly controlled at 5.1ns (tPLH typ) with pulse-width distortion under 1ns.
Does the MAX14932BASE+T support different supply voltages on each side?
Yes, the MAX14932BASE+T supports independent supply voltages from 1.71V to 5.5V on Side A (VDDA/GNDA) and Side B (VDDB/GNDB). This dual-supply capability enables seamless level translation-for example, interfacing a 1.8V FPGA I/O bank with a 3.3V isolated RS-485 transceiver-without external level shifters. Input thresholds scale with respective VDD, ensuring reliable logic detection across combinations.
What safety certifications does the MAX14932BASE+T hold?
The MAX14932BASE+T is certified to UL 1577 (3750VRMS), cUL (CSA 22.2 No. 5A), VDE 0884-11:2017 (Basic Insulation), and TUV (IEC 60950-1, IEC 61010-1, IEC 60601-1). It achieves 2.75kVRMS withstand voltage (60s), 443VRMS working voltage (VIOWM), and 630VPK repetitive peak voltage (VIORM), meeting reinforced insulation requirements for industrial and Class II medical applications.
How does the default-low output configuration of the MAX14932BASE+T affect system behavior during power loss?
The MAX14932BASE+T defaults to low-state outputs when its inputs are unpowered or undriven-a critical fail-safe feature. During power sequencing or brownout events on either side, OUTB1–OUTB4 transition to logic low, preventing undefined states on downstream isolated peripherals. This behavior is confirmed in the General Description section and ensures predictable shutdown in battery management and motor control systems where unintended actuation must be avoided.
What is the creepage and clearance distance of the MAX14932BASE+T package?
The MAX14932BASE+T uses a 16-pin wide-body SOIC package with minimum creepage and clearance distances of 8mm-verified per DIN VDE 0110 and IEC 60664-1. This exceeds the 7.2mm requirement for reinforced insulation at 443VRMS working voltage (VIOWM), enabling direct use in medical (IEC 60601-1) and industrial (IEC 61010-1) safety-critical designs without supplemental spacing on the PCB.
MAX14932BASE+T Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Series:
- -
- Package/Case:
- 16-SOIC (0.154", 3.90mm 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:
- 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
MAX14932BASE+T FAQ
1.How can I place an order for MAX14932BASE+T through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX14932BASE+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 MAX14932BASE+T reliable?
The price and inventory of MAX14932BASE+T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX14932BASE+T is usually 5 days.
3.What payment methods are accepted for MAX14932BASE+T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX14932BASE+T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX14932BASE+T?
MAX14932BASE+T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX14932BASE+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 MAX14932BASE+T?
For technical support, including MAX14932BASE+T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX14932BASE+T requirements.
6.How does Aetrix verify that MAX14932BASE+T is sourced from the original manufacturer or authorized distributors?
All MAX14932BASE+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 MAX14932BASE+T meets industry standards.
7.What is the process for return or replacement of MAX14932BASE+T?
All MAX14932BASE+T units undergo pre-shipment inspection (PSI). If there is an issue with MAX14932BASE+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 MAX14932BASE+T part is unused and in its original packaging.
Return procedure for MAX14932BASE+T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
MAX14932BASE+T Tags
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ISO6721BDR
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SI8710AC-B-ISR
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ISO7720FDR
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SI8710CC-B-ISR
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ISO6741FQDWRQ1
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ISO7762FDBQR
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ISO7741DWR
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ISO7741FDWR
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