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Analog Devices Inc./Maxim Integrated MAX14932FASE+
- Part No.:
- MAX14932FASE+
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Digital Isolators
- Package:
- 16-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
MAX14932FASE+.pdf
- Description:
- DGTL ISO 2750VRMS 4CH GP 16SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:2,448
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Product details
Overview
MAX14932FASE+ 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 - designed for high-speed industrial SPI and RS-485 isolation interfaces.
For engineers reviewing the MAX14932FASE+ datasheet, MAX14932FASE+ pinout, MAX14932FASE+ application, or MAX14932FASE+ equivalent, this page delivers verified specifications including CMTI ≥25kV/µs, propagation delay ≤7.5ns (typ), VIOWM = 443VRMS, and SOIC-16 wide-body package compatibility - critical for safety-certified, high-noise industrial designs.
Technical Context
The MAX14932FASE+ implements capacitive isolation with proprietary silicon-dioxide barrier technology, supporting unidirectional channel mapping (A→B only) optimized for master-to-slave signal flow in isolated serial buses. Its architecture includes integrated enable inputs (ENA/ENB) per side, allowing dynamic channel gating without external logic.
It delivers deterministic timing performance: propagation delay skew <1.6ns (channel-to-channel, same direction), pulse-width distortion ≤1ns, and peak eye jitter ≤140ps at 5V supply - enabling reliable sampling at 150Mbps under fast common-mode transients up to 25kV/µs.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Isolation Rating | 2.75kVRMS withstand (60s), 443VRMS continuous working voltage - meets IEC 60950-1 and IEC 61010-1 basic insulation requirements. |
| Max Data Rate | 150Mbps - supports high-speed SPI clocking up to 75MHz with clean eye margins and ≤140ps peak jitter. |
| Propagation Delay | 5.1ns (tPLH typ) at 4.5–5.5V - enables sub-10ns round-trip latency for time-critical feedback loops. |
| CMTI | ≥25kV/µs - ensures robust operation in motor drives and inverters with fast-switching power stages. |
| Supply Range | 1.71V to 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 control cabinet deployment. |
| Default Output State | Low - prevents floating outputs during power-up/power-down sequencing in safety-critical systems. |
Pinout & Package
MAX14932FASE+ 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 |
|---|---|---|
| INA1–INA4 | Primary-side input channels | Accept CMOS/LVTTL signals referenced to GNDA; support 0.7×VDDA logic-high threshold. |
| OUTB1–OUTB4 | Secondary-side isolated outputs | Drive loads up to 4mA; VOH ≥ VDDB–0.4V, VOL ≤ 0.4V - compatible with standard digital receivers. |
| VDDA / VDDB | Isolated power supplies | Independent 1.71–5.5V rails enable level translation between disparate logic domains. |
| GNDA / GNDB | Isolated ground references | Must be kept separate; no shared ground connection permitted across isolation barrier. |
| ENA / ENB | Output enable controls | Active-high enables respective side's outputs; three-state when low - supports bus sharing. |
Key Features
| Feature | Design Value |
|---|---|
| 150Mbps data rate with <1ns pulse-width distortion | Enables full-duplex SPI at 75MHz SCLK without setup/hold violations in isolated master-slave links. |
| 25kV/µs CMTI | Prevents data corruption in variable-frequency drives where dV/dt exceeds 10kV/µs near IGBT switching nodes. |
| VIOWM = 443VRMS & VISO = 2750VRMS | Satisfies reinforced insulation requirements for PLC analog I/O modules and medical patient-connected devices. |
| 1.71V–5.5V dual-supply flexibility | Eliminates need for external level translators when interfacing 1.8V FPGA I/O with 3.3V or 5V sensor subsystems. |
| Default-low output state | Guarantees known logic state during brown-out or partial power-up - critical for fail-safe gate driver enable paths. |
Applications
| Industrial SPI Isolation | Isolated RS-485 Transceivers |
|---|---|
|
Use Scenario: Isolating SPI communication between a host MCU and isolated ADC/DAC on a high-voltage motor control board. IC Role / Device Role / Timing Role: Unidirectional A→B signal transfer for command/data from controller to isolated peripherals; 150Mbps supports oversampling configurations. Use Value: Prevents ground loop noise from corrupting 16-bit ADC readings while maintaining sub-10ns timing alignment for synchronized sampling. |
Use Scenario: Providing galvanic isolation between RS-485 PHY and controller in factory-floor fieldbus nodes. IC Role / Device Role / Timing Role: Isolating TX/RX data lines and DE/RE control signals; supports full-duplex 25Mbps RS-485 operation. Use Value: Enables >1km cable runs in electrically noisy environments without bit errors, meeting IEC 61000-4-5 surge immunity (±10kV). |
| Battery Management Systems | Medical Isolated Data Acquisition |
|
Use Scenario: Isolating cell voltage monitoring ICs from main BMS controller across 400V+ battery stacks. IC Role / Device Role / Timing Role: Transmitting precise voltage readings from isolated sense domain to system controller; default-low prevents false triggers during startup. Use Value: Maintains ±0.5mV measurement accuracy despite 1kV common-mode transients from contactor switching. |
Use Scenario: Isolating ECG/EEG front-end analog signal chains from digital processing unit in Class II medical equipment. IC Role / Device Role / Timing Role: Transmitting digitized bio-signal data across reinforced insulation barrier compliant with IEC 60601-1 3rd ed. Use Value: Achieves 630VPK repetitive peak isolation and 443VRMS working voltage - certified for 2 MOOP patient protection. |
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; uses iCoupler magnetic isolation; SOIC-16 narrow body (9.9mm × 3.9mm). | Limited to low-speed protocols (e.g., I²C, slow SPI); unsuitable for 150Mbps RS-485 or high-speed ADC interfaces. | Select when cost sensitivity outweighs speed needs and PCB space is constrained. |
| SI8642ED-B-IS | 4-channel, 5kVRMS, 150Mbps; capacitive isolation; SOIC-16 wide body; default-high outputs. | Higher isolation rating suits mains-connected equipment; default-high may require external pull-downs for fail-safe logic. | Choose for enhanced surge immunity (12kV IEC 61000-4-5) where 5kVRMS certification is mandated. |
Compared with ADUM4402BRWZ and SI8642ED-B-IS, the MAX14932FASE+ uniquely combines 2.75kVRMS isolation, 150Mbps speed, and default-low outputs in a wide SOIC package - making it optimal for industrial SPI and RS-485 isolation where timing integrity, fail-safe behavior, and regulatory compliance intersect.
Availability
MAX14932FASE+ is available at Aetrix Electronics and suitable for industrial automation, battery management systems, and medical data acquisition requiring stable component supply, long-term lifecycle support, and traceable sourcing.
Supply support for MAX14932FASE+ 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 MAX1493x family was engineered specifically for high-speed, high-reliability galvanic isolation in harsh industrial environments - emphasizing low propagation skew, high CMTI, and safety-certified barrier integrity.
FAQ
What is the maximum data rate supported by the MAX14932FASE+?
The MAX14932FASE+ supports a maximum data rate of 150Mbps, verified across all supply voltages (1.71V–5.5V) and temperature range (–40°C to +125°C). This enables reliable high-speed SPI and RS-485 isolation without signal degradation, with typical propagation delay of 5.1ns and pulse-width distortion under 1ns.
Does the MAX14932FASE+ support bidirectional communication?
No, the MAX14932FASE+ is a unidirectional isolator with fixed A→B channel direction (INA1–INA4 to OUTB1–OUTB4). For bidirectional protocols like I²C, Analog Devices recommends the MAX14933 - which is pin-compatible but functionally distinct. Using MAX14932FASE+ for bidirectional signals requires external direction-control logic.
What safety certifications does the MAX14932FASE+ hold?
The MAX14932FASE+ is certified to UL 1577 (3750VRMS), CSA C22.2 No. 5A (3750VRMS), VDE 0884-11:2017 (basic insulation, 4600VPK transient), and TUV IEC 60950-1/61010-1/60601-1. It achieves 2.75kVRMS withstand voltage (60s), 443VRMS working voltage, and 630VPK repetitive peak isolation - validated per IEC 60747-5-5.
Can the MAX14932FASE+ operate with different supply voltages on each side?
Yes, the MAX14932FASE+ supports independent 1.71V to 5.5V supplies on VDDA and VDDB - enabling seamless level translation between 1.8V FPGA I/O and 5V sensor subsystems. Each side's logic thresholds scale with its local supply (e.g., VIH = 0.7×VDDA), eliminating external level shifters in mixed-voltage designs.
What is the meaning of "FASE+" in MAX14932FASE+?
The "FASE+" suffix denotes the specific variant: F = 150Mbps data rate, A = unidirectional A→B channel configuration, S = wide-body SOIC package (10.3mm × 7.5mm), E = lead-free/RoHS-compliant, and + = tape-and-reel packaging. This distinguishes it from other variants like MAX14932BAS+ (25Mbps) or MAX14932CAS+ (1Mbps).
MAX14932FASE+ 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:
- 150Mbps
- Propagation Delay tpLH / tpHL (Max):
- 7.5ns, 7.4ns
- Pulse Width Distortion (Max):
- 1ns
- 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
MAX14932FASE+ FAQ
1.How can I place an order for MAX14932FASE+ through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX14932FASE+ 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 MAX14932FASE+ reliable?
The price and inventory of MAX14932FASE+ are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX14932FASE+ is usually 5 days.
3.What payment methods are accepted for MAX14932FASE+?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX14932FASE+ transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX14932FASE+?
MAX14932FASE+ orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX14932FASE+ 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 MAX14932FASE+?
For technical support, including MAX14932FASE+ datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX14932FASE+ requirements.
6.How does Aetrix verify that MAX14932FASE+ is sourced from the original manufacturer or authorized distributors?
All MAX14932FASE+ 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 MAX14932FASE+ meets industry standards.
7.What is the process for return or replacement of MAX14932FASE+?
All MAX14932FASE+ units undergo pre-shipment inspection (PSI). If there is an issue with MAX14932FASE+, 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 MAX14932FASE+ part is unused and in its original packaging.
Return procedure for MAX14932FASE+:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
MAX14932FASE+ Tags
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ISO1212DBQR
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SI8710AC-B-ISR
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ISO7741FDWR
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