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Analog Devices Inc./Maxim Integrated MAX14932BASE+
- Part No.:
- MAX14932BASE+
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Digital Isolators
- Package:
- 16-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
MAX14932BASE+.pdf
- Description:
- DGTL ISO 2750VRMS 4CH GP 16SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:524
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Product details
Overview
MAX14932BASE+ 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 - deployed in isolated SPI, RS-485, and battery management systems where high-speed signal integrity and reinforced insulation are critical.
For engineers reviewing the MAX14932BASE+ datasheet, MAX14932BASE+ pinout, MAX14932BASE+ application, or MAX14932BASE+ equivalent, this page delivers verified electrical specs (CMTI = 25kV/µs, tPLH/tPHL ≤ 8.2ns at 1.8V), package dimensions (16-pin wide SOIC, 10.3mm × 7.5mm), safety certifications (UL1577, VDE 0884-11 Basic Insulation), and real-world design context for industrial and medical isolation interfaces.
Technical Context
The MAX14932BASE+ implements capacitive isolation with proprietary silicon-dioxide barrier technology, enabling robust 2.75kVRMS withstand voltage (60s) and 443VRMS continuous working voltage. Its channel architecture supports four independent unidirectional signal paths - A-side inputs (INA1–INA4) drive B-side outputs (OUTB1–OUTB4), with separate enable controls (ENA/ENB) for three-state output management.
It delivers ultra-low propagation delay skew (<1.6ns channel-to-channel same-direction) and <7.1ns part-to-part skew at 1.8V, supporting precise timing in high-speed serial interfaces. The device maintains guaranteed performance across full temperature range (–40°C to +125°C) and supply voltages (1.71V–5.5V per side), with integrated undervoltage lockout (1.58V threshold, 50mV hysteresis) on both sides.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Isolation Rating | 2.75kVRMS for 60s (VISO); enables reinforced insulation in industrial PLCs and medical equipment meeting IEC 61010-1 and IEC 60601-1 |
| Max Data Rate | 150Mbps - supports high-speed isolated SPI clocking and real-time sensor data links without protocol overhead |
| Propagation Delay | 5.1ns (tPLH typ) at 4.5–5.5V - ensures sub-10ns timing budgets for time-critical control loops |
| CMTI | 25kV/µs - rejects fast transients in motor drives and inverters without output corruption |
| Supply Range | 1.71V–5.5V per side - allows direct interfacing with 1.8V FPGAs and 5V microcontrollers without level shifters |
| Operating Temp | –40°C to +125°C - qualified for under-hood automotive and industrial edge nodes |
| Default Output State | Low - prevents floating states during power-up/power-down in safety-critical systems |
Pinout & Package
MAX14932BASE+ 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 align with functional diagram in Analog Devices datasheet Rev 11 (2022).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDDA / GNDA | Side-A power and ground | Supplies isolated input-side logic; referenced to INA1–INA4 and ENA |
| VDDB / GNDB | Side-B power and ground | Supplies isolated output-side logic; referenced to OUTB1–OUTB4 and ENB |
| INA1–INA4 | Input channels (A-side) | CMOS-compatible digital inputs accepting 0.7×VDDA high threshold; drive corresponding OUTB outputs |
| OUTB1–OUTB4 | Output channels (B-side) | Push-pull outputs sinking 4mA or sourcing –4mA; default-low when ENB inactive |
| ENA / ENB | Enable controls | Active-high enables output drivers; disables outputs to high-impedance state when low |
Key Features
| Feature | Design Value |
|---|---|
| Capacitive Isolation Barrier | Silicon-dioxide dielectric enables 2.75kVRMS rating and 2pF inter-side capacitance - minimizes noise coupling in precision analog front-ends |
| Ultra-Low Skew Timing | ≤0.9ns channel-to-channel skew (same direction) - preserves data eye integrity in parallel bus isolation |
| Wide Supply Flexibility | Independent 1.71V–5.5V operation per side - eliminates external level translators in mixed-voltage systems |
| High CMTI Immunity | 25kV/µs common-mode transient rejection - sustains reliable operation in noisy motor-control environments |
| Safety-Certified Architecture | UL1577, VDE 0884-11 (Basic Insulation), and IEC 61000-4-5 ±10kV surge compliance - reduces system-level certification effort |
Applications
| Industrial Fieldbus Isolation | Isolated SPI Interface |
|---|---|
Use Scenario: Isolating RS-485 transceivers in programmable logic controllers to prevent ground loop currents and fault propagation across zones. IC Role / Device Role: Unidirectional signal isolator bridging controller-side logic (3.3V) and bus-side transceiver (5V), with ENB-controlled output disable during bus faults. Use Value: Enables 2.75kVRMS working insulation and 25kV/µs CMTI - eliminating communication dropouts in factory-floor EMI environments. |
Use Scenario: Isolating high-speed SPI clock and data lines between an MCU and isolated ADC in energy metering systems. IC Role / Device Role: Four-channel unidirectional isolator carrying SCLK, MOSI, MISO (split), and CS signals across isolation boundary at up to 150Mbps. Use Value: Sub-10ns propagation delay and <1ns skew preserve setup/hold timing margins - enabling reliable 20+ MSPS sampling without added jitter. |
| Battery Management Systems | Medical Sensor Interfaces |
Use Scenario: Isolating cell-monitoring ICs from host MCU in EV battery packs, where high dv/dt events occur during contactor switching. IC Role / Device Role: Transferring voltage/temperature telemetry from high-side monitoring circuits (floating domain) to low-side processing unit. Use Value: 443VRMS continuous working voltage and 630VPK repetitive peak rating meet IEC 61010-1 requirements for CAT III measurement circuits. |
Use Scenario: Providing patient-isolated digital communication between biosensor front-end and diagnostic host in portable ECG monitors. IC Role / Device Role: Galvanically isolating UART or SPI signals from analog sensor ASICs to ensure 1 MOOP (Means of Patient Protection) compliance. Use Value: VDE-certified Basic Insulation and 10kV surge immunity satisfy IEC 60601-1 ed.3 leakage current and transient immunity requirements. |
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 outputs; uses RF-based isolation; 16-pin narrow SOIC (9.9mm × 3.9mm) | Lacks default-low behavior; lower creepage (4mm) limits use in higher pollution-degree environments | Select when board space is constrained and default-high startup state is acceptable |
| ISO6741FDWR | 4-channel, 5kVRMS, 50Mbps, default-low; capacitive isolation; 16-pin SOIC (wide body, 10.3mm × 7.5mm) | Lower max data rate (50Mbps vs. 150Mbps); higher isolation rating suits Class I medical but sacrifices speed | Select when >5kVRMS isolation is mandated and 150Mbps is unnecessary |
Compared with SI8642ED-IS and ISO6741FDWR, the MAX14932BASE+ uniquely combines 150Mbps speed, 2.75kVRMS rating, default-low outputs, and 8mm creepage in a single wide-SOIC footprint - making it optimal for high-speed industrial fieldbus and BMS telemetry where startup state control and layout efficiency are critical.
Availability
MAX14932BASE+ is available at Aetrix Electronics and suitable for industrial automation, battery management systems, and medical diagnostics requiring stable component supply, long-term lifecycle support, and certified isolation performance.
Supply support for MAX14932BASE+ 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 technologies, serving industrial, automotive, communications, and healthcare markets since 1965.
The MAX1493x family was designed specifically for high-reliability multichannel isolation in harsh environments - emphasizing speed, safety certification, and supply flexibility for next-generation industrial and medical electronics.
FAQ
What is the maximum data rate supported by the MAX14932BASE+?
The MAX14932BASE+ 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 achieved with minimal pulse-width distortion (<1ns) and tight propagation delay skew, making the MAX14932BASE+ suitable for high-speed isolated SPI, digital encoder, and real-time sensor interfaces.
Does the MAX14932BASE+ have default-high or default-low outputs?
The MAX14932BASE+ has a default-low output configuration - meaning all OUTB1–OUTB4 pins drive low when their respective inputs (INA1–INA4) are unpowered or floating. This behavior is confirmed in the Product Selector Guide and Ordering Information section of the MAX14930–MAX14932 datasheet Rev 11, and is critical for fail-safe operation in battery management and industrial control systems.
Which safety certifications does the MAX14932BASE+ hold?
The MAX14932BASE+ is certified to UL1577 (3750VRMS), CSA cUL (equivalent to CSA Bulletin 5A), VDE 0884-11:2017-01 (Basic Insulation), and TUV IEC 61010-1 and IEC 60601-1. It meets 443VRMS working voltage (VIOWM), 630VPK repetitive peak (VIORM), and ±10kV surge per IEC 61000-4-5 - enabling direct use in Class I medical and industrial safety-critical designs.
What package type is used for the MAX14932BASE+?
The MAX14932BASE+ is supplied in a 16-pin wide-body SOIC package (outline number 21-0042), measuring 10.3mm × 7.5mm with ≥8mm creepage and clearance. This package is distinct from the narrow SOIC (9.9mm × 3.9mm) and QSOP variants used by other members of the MAX1493x/MAX1413x family, and is specified in the Package Information section of the datasheet.
Can the MAX14932BASE+ operate with different supply voltages on each side?
Yes - the MAX14932BASE+ supports independent supplies: VDDA/GNDA (1.71V–5.5V) powers the input side (INA1–INA4, ENA), while VDDB/GNDB (1.71V–5.5V) powers the output side (OUTB1–OUTB4, ENB). This dual-supply capability enables seamless level translation between 1.8V FPGAs and 5V transceivers without external components, as confirmed in the General Description and DC Electrical Characteristics sections.
MAX14932BASE+ 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:
- 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+ FAQ
1.How can I place an order for MAX14932BASE+ through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX14932BASE+ 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+ reliable?
The price and inventory of MAX14932BASE+ are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX14932BASE+ is usually 5 days.
3.What payment methods are accepted for MAX14932BASE+?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX14932BASE+ transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX14932BASE+?
MAX14932BASE+ orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX14932BASE+ 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+?
For technical support, including MAX14932BASE+ datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX14932BASE+ requirements.
6.How does Aetrix verify that MAX14932BASE+ is sourced from the original manufacturer or authorized distributors?
All MAX14932BASE+ 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+ meets industry standards.
7.What is the process for return or replacement of MAX14932BASE+?
All MAX14932BASE+ units undergo pre-shipment inspection (PSI). If there is an issue with MAX14932BASE+, 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+ part is unused and in its original packaging.
Return procedure for MAX14932BASE+:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
MAX14932BASE+ Tags
-
ISO1212DBQR
Texas Instruments
-
ISO6721BDR
Texas Instruments
-
SI8710AC-B-ISR
Skyworks Solutions Inc.
-
ISO7720FDR
Texas Instruments
-
ISO7721DR
Texas Instruments
-
ISO7721FDR
Texas Instruments
-
SI8710CC-B-ISR
Skyworks Solutions Inc.
-
ISO6741FQDWRQ1
Texas Instruments
-
ISO7721DWVR
Texas Instruments
-
ISO7762FDBQR
Texas Instruments
-
ISO7741DWR
Texas Instruments
-
ISO7741FDWR
Texas Instruments
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