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Analog Devices Inc./Maxim Integrated MAX14932AASE+T
- Part No.:
- MAX14932AASE+T
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Digital Isolators
- Package:
- 16-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
MAX14932AASE+T.pdf
- Description:
- DGTL ISO 2750VRMS 4CH GP 16SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:3,603
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Product details
Overview
MAX14932AASE+T from Analog Devices is a 4-channel, unidirectional digital isolator with 2.75kVRMS galvanic isolation, 150Mbps 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 industrial RS-485 interfaces requiring high-speed, robust signal integrity across power domain boundaries.
For engineers reviewing the MAX14932AASE+T datasheet, MAX14932AASE+T pinout, MAX14932AASE+T application, or MAX14932AASE+T equivalent, this page delivers verified electrical specs (CMTI = 25kV/µs, tPLH/tPHL ≤ 8.2ns at 1.8V), package mapping (16-pin wide SOIC), safety certifications (UL, VDE, IEC 61000-4-5 ±10kV surge), and real-world design context for fieldbus and battery management systems.
Technical Context
The MAX14932AASE+T implements capacitive isolation with proprietary silicon-dioxide dielectric barriers, supporting asymmetric voltage rails (e.g., 1.8V side A / 3.3V side B) and enabling level translation. Its unidirectional channel architecture (2 channels A→B, 2 channels B→A) is optimized for SPI and RS-485 control/data separation.
It integrates enable-controlled three-state outputs (tEN = 5.1ns min, tTRI = 2.7ns min at 4.5–5.5V), low-glitch rejection (15ns), and tight propagation delay skew (tSCSLH ≤ 0.9ns same-direction, tSCOLH ≤ 3.0ns opposing-direction), ensuring deterministic timing in high-noise industrial environments.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Isolation Rating | 2.75kVRMS withstand (60s), 443VRMS continuous working voltage - meets basic insulation requirements per VDE 0884-11 and UL1577. |
| Data Rate | 150Mbps maximum - supports high-speed serial protocols like isolated SPI clock/data lines without oversampling. |
| Propagation Delay | 5.1–14.9ns (tPLH/tPHL, voltage-dependent) - enables sub-10ns timing budgets for real-time control loops. |
| CMTI | 25kV/µs - rejects fast common-mode transients typical in motor drives and HV battery monitoring. |
| Supply Range | 1.71V to 5.5V per side - allows direct interfacing with 1.8V FPGAs and 5V microcontrollers without external level shifters. |
| Operating Temp | –40°C to +125°C - qualified for under-hood automotive and industrial PLC environments. |
| Output Default | Low - ensures safe logic-low state on power-up or input loss, critical for fail-safe gate driver enable paths. |
Pinout & Package
Package: 16-pin wide-body SOIC (10.3mm × 7.5mm), creepage/clearance ≥8mm, RoHS-compliant (W16M+8 outline).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| INA1–INA4 | Side A digital inputs | Accept 1.71V–5.5V logic; VIH = 0.7×VDDA, VIL ≤ 0.8V - compatible with CMOS/LVTTL. |
| INB1–INB4 | Side B digital inputs | Independent input domain; referenced to GNDB - enables bidirectional system partitioning. |
| OUTA1–OUTA4 | Side A isolated outputs | Drive loads up to 4mA; VOH = VDDA–0.4V, VOL = 0.4V - ensures rail-to-rail compatibility with downstream logic. |
| OUTB1–OUTB4 | Side B isolated outputs | Same drive strength as OUTA; referenced to VDDB - supports asymmetric supply configurations. |
| ENA, ENB | Output enable controls | Active-high; tri-state outputs when low - enables bus sharing and hot-swap capability. |
| VDDA, VDDB | Isolated power supplies | Decoupled domains; each accepts 1.71V–5.5V - eliminates ground loops in multi-supply systems. |
| GNDA, GNDB | Isolated grounds | Physically separated reference planes - mandatory for maintaining isolation barrier integrity. |
Key Features
| Feature | Design Value |
|---|---|
| Capacitive isolation barrier | 2.75kVRMS rating with 630VPK repetitive peak voltage - certified to VDE 0884-11 for reinforced insulation in medical and industrial equipment. |
| High-speed timing performance | 150Mbps data rate with <1ns channel-to-channel skew - enables precise synchronization in isolated ADC/DAC interfaces. |
| Low-power operation | 10.5mA typical per side at 1.8V/50MHz - reduces thermal load in dense PCB layouts and extends battery life in portable test gear. |
| Robust transient immunity | 25kV/µs CMTI and ±10kV surge (IEC 61000-4-5) - sustains operation during ESD events and switching noise in factory automation. |
| Wide supply flexibility | 1.71V–5.5V dual-rail support - eliminates need for external level translators when interfacing mixed-voltage SoCs and sensors. |
Applications
| Industrial RS-485 Transceivers | Isolated SPI Master-Slave Links |
|---|---|
Use Scenario: Isolating RS-485 transceiver control lines (DE/RE) and data lines (RO/DI) in motor drive inverters exposed to 1kV common-mode noise. IC Role / Device Role / Timing Role: Provides galvanic separation between MCU UART and half-duplex bus transceiver, with 150Mbps margin for future protocol upgrades. Use Value: Prevents ground loop currents from corrupting communication while maintaining <8.2ns propagation delay for real-time fault response. | Use Scenario: Connecting an isolated ADC (e.g., AD7403) to an FPGA via SPI in a high-voltage energy meter. IC Role / Device Role / Timing Role: Transfers SCLK/MOSI/MISO/CS signals across isolation boundary with matched tPLH/tPHL to preserve setup/hold timing. Use Value: Enables 16-bit precision sampling at >1MSPS by minimizing jitter (140ps peak eye diagram jitter at 5V). |
| Battery Management Systems (BMS) | Programmable Logic Controller (PLC) I/O Modules |
Use Scenario: Isolating cell monitor IC (e.g., LTC6813) daisy-chain communication in 800V EV battery packs. IC Role / Device Role / Timing Role: Unidirectional isolator for stack controller-to-monitor data flow, with default-low outputs preventing false wake-up during power sequencing. Use Value: Ensures safe startup and fault reporting under 443VRMS continuous working voltage, meeting IEC 61010-1 basic insulation requirements. | Use Scenario: Digitally isolating 24V DC input sensing and relay driver outputs in modular PLC backplanes. IC Role / Device Role / Timing Role: Four independent channels isolate discrete I/O signals, with ENA/ENB enabling synchronized module reset. Use Value: Supports –40°C to +125°C ambient operation and 25kV/µs CMTI to survive EMI in factory floor cabinets. |
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; 16-pin narrow SOIC (9.9mm × 3.9mm) | Smaller footprint but lower isolation rating; lacks 2.75kVRMS certification for medical-grade designs | Select when board space is constrained and 2.5kVRMS suffices for industrial use. |
| ISO6742FDWR | 4-channel, 5kVRMS, 50Mbps, default-low; 16-pin SOIC (wide body), TI's capacitive isolation | Higher isolation but lower speed; not suitable for 150Mbps SPI or fast RS-485 control | Choose when safety-critical medical or HV grid applications demand 5kVRMS, accepting bandwidth trade-off. |
Compared with SI8642ED-IS and ISO6742FDWR, the MAX14932AASE+T uniquely combines 2.75kVRMS isolation, 150Mbps speed, and default-low outputs in a wide SOIC package - making it optimal for high-noise, high-speed industrial interfaces where both safety and timing fidelity are non-negotiable.
Availability
MAX14932AASE+T is available at Aetrix Electronics and suitable for industrial RS-485 transceivers, isolated SPI master-slave links, and battery management systems requiring stable component supply across extended temperature and high-reliability environments.
Supply support for MAX14932AASE+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 MAX1493x family was designed specifically for high-speed, high-isolation digital signal transfer in harsh industrial environments - emphasizing low jitter, high CMTI, and extended temperature reliability.
FAQ
What is the maximum data rate supported by the MAX14932AASE+T?
The MAX14932AASE+T supports a maximum data rate of 150Mbps, validated across its full operating voltage range (1.71V–5.5V) and temperature range (–40°C to +125°C). This is confirmed in the Dynamic Electrical Characteristics table for MAX1493_B/E variants, where DRMAX = 150Mbps is explicitly specified with 6.67ns minimum pulse width and <1ns channel skew - enabling reliable high-speed SPI and RS-485 control signaling.
Does the MAX14932AASE+T support different supply voltages on each side?
Yes, the MAX14932AASE+T supports independent 1.71V to 5.5V supplies on Side A (VDDA/GNDA) and Side B (VDDB/GNDB). This dual-rail capability allows direct interfacing between 1.8V FPGAs and 3.3V or 5V microcontrollers without external level shifters - a key feature confirmed in the DC Electrical Characteristics section and General Description.
What safety certifications does the MAX14932AASE+T hold?
The MAX14932AASE+T is certified to UL1577 (3750VRMS), cUL (CSA 5A), VDE 0884-11:2017 (Basic Insulation), and IEC 61000-4-5 (±10kV surge). It achieves 2.75kVRMS withstand voltage (60s), 443VRMS working voltage, and 630VPK repetitive peak voltage - all documented in the Safety Regulatory Approvals and Insulation Characteristics sections of the datasheet.
What is the propagation delay and skew performance of the MAX14932AASE+T?
The MAX14932AASE+T exhibits tPLH/tPHL of 5.1–14.9ns (voltage-dependent), pulse-width distortion ≤1ns, and channel-to-channel skew ≤0.9ns for same-direction signals. These values are measured at CL = 15pF and are guaranteed over temperature - enabling precise timing in isolated ADC interfaces and real-time control loops, as detailed in the Dynamic Electrical Characteristics (MAX1493_B/E) tables.
How does the default-low output configuration of the MAX14932AASE+T improve system safety?
The MAX14932AASE+T defaults to logic-low outputs when inputs are unpowered or floating - a critical fail-safe behavior for enabling isolated gate drivers or disabling RS-485 transceivers during power-up/down sequences. This prevents unintended activation of high-side switches or bus contention, directly supporting IEC 61508 functional safety principles in industrial control systems.
MAX14932AASE+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:
- 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+T FAQ
1.How can I place an order for MAX14932AASE+T through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX14932AASE+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 MAX14932AASE+T reliable?
The price and inventory of MAX14932AASE+T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX14932AASE+T is usually 5 days.
3.What payment methods are accepted for MAX14932AASE+T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX14932AASE+T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX14932AASE+T?
MAX14932AASE+T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX14932AASE+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 MAX14932AASE+T?
For technical support, including MAX14932AASE+T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX14932AASE+T requirements.
6.How does Aetrix verify that MAX14932AASE+T is sourced from the original manufacturer or authorized distributors?
All MAX14932AASE+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 MAX14932AASE+T meets industry standards.
7.What is the process for return or replacement of MAX14932AASE+T?
All MAX14932AASE+T units undergo pre-shipment inspection (PSI). If there is an issue with MAX14932AASE+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 MAX14932AASE+T part is unused and in its original packaging.
Return procedure for MAX14932AASE+T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
MAX14932AASE+T 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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