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Analog Devices Inc./Maxim Integrated MAX14930AASE+
- Part No.:
- MAX14930AASE+
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Digital Isolators
- Package:
- 16-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
MAX14930AASE+.pdf
- Description:
- DGTL ISO 2.75KV GEN PURP 16SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:152
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Product details
Overview
MAX14930AASE+ 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 -40°C to +125°C ambient rating. It delivers robust isolation for industrial fieldbus, isolated SPI/RS-485, and battery management systems.
For engineers reviewing the MAX14930AASE+ datasheet, MAX14930AASE+ pinout, MAX14930AASE+ application, or MAX14930AASE+ equivalent, this page provides verified technical context, channel-level timing specs (e.g., 5.1ns tPLH typ @5V), safety certifications (UL1577, VDE 0884-11), and real-world design trade-offs versus alternatives.
Technical Context
The MAX14930AASE+ implements capacitive isolation with proprietary dielectric barrier technology, enabling 2.75kVRMS withstand voltage (60s) and 443VRMS continuous working voltage (VIOWM). Its architecture supports three unidirectional channel configurations - ideal for SPI master-slave, RS-232 level-shifting, and digital I/O isolation - but excludes bidirectional protocols like I²C.
It features independent A-side and B-side supplies (1.71V–5.5V), enabling level translation between disparate logic domains. The device includes enable-controlled three-state outputs (tTRI = 2.7ns typ @5V) and achieves 25kV/µs common-mode transient immunity (CMTI), critical for noisy industrial motor drive environments.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Isolation Rating | 2.75kVRMS for 60s (VISO); enables compliance with reinforced insulation requirements in industrial safety standards. |
| Max Data Rate | 150Mbps - supports high-speed serial interfaces such as isolated USB bridge control or fast sensor data acquisition. |
| Propagation Delay | 5.1ns (tPLH typ @5V) - ensures tight timing margins in real-time control loops and deterministic communication. |
| CMTI | 25kV/µs - suppresses false triggering during fast transients in motor drives or power converters. |
| Supply Range | 1.71V–5.5V per side - allows direct interfacing with 1.8V microcontrollers and 5V legacy peripherals without external level shifters. |
| Operating Temp | -40°C to +125°C - qualified for under-hood automotive, industrial PLC, and medical equipment deployments. |
| Package | 16-pin wide-body SOIC (10.3mm × 7.5mm, 8mm creepage/clearance) - meets IPC-2221B spacing requirements for 300V RMS working voltage. |
Pinout & Package
Package: 16-pin wide-body SOIC (W16M+8), outline 21-0042, 8mm creepage and clearance, RoHS-compliant.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| INA1–INA4 | A-side digital inputs | Accept 1.71V–5.5V logic signals; VIH = 0.7×VDDA, VIL = 0.6–0.8V depending on supply. |
| INB1–INB4 | B-side digital inputs | Isolated input side for reverse-direction channels; referenced to GNDB. |
| OUTA1–OUTA4 | A-side digital outputs | CMOS outputs driving up to 4mA; VOH = VDDA – 0.4V, VOL = 0.4V. |
| OUTB1–OUTB4 | B-side digital outputs | Isolated output side; matched propagation delay skew ≤0.9ns (same-direction channels). |
| VDDA / VDDB | Independent power supplies | Enable level translation; undervoltage lockout (VUVLO = 1.45–1.71V) prevents erratic behavior during brownout. |
| GNDA / GNDB | Isolated ground references | Must be kept separate; no shared ground plane across isolation barrier. |
| ENA / ENB | Output enable controls | Active-high enables outputs; tEN = 5.1ns typ @5V, tTRI = 2.7ns typ - supports dynamic channel gating. |
Key Features
| Feature | Design Value |
|---|---|
| 2.75kVRMS Isolation | Meets UL1577, VDE 0884-11 Basic Insulation, and IEC 61000-4-5 ±10kV surge immunity - certified for industrial safety-critical systems. |
| 150Mbps Data Rate | Enables real-time isolation of high-speed serial links (e.g., isolated CAN FD controllers or fast ADC interfaces) without protocol overhead. |
| Low Propagation Skew | Channel-to-channel skew ≤0.9ns (same direction) ensures synchronous sampling across all four channels in time-critical applications. |
| Dual-Supply Level Translation | 1.71V–5.5V operation on both sides eliminates need for external level shifters when interfacing 1.8V FPGAs with 3.3V/5V sensors or actuators. |
| 25kV/µs CMTI | Guarantees reliable operation in high-noise environments such as variable-frequency drives, where ground bounce exceeds 10kV/µs. |
Applications
| Industrial Fieldbus Isolation | Isolated SPI Interface |
|---|---|
|
Use Scenario: Isolating Modbus RTU or Profibus DP nodes in factory automation cabinets exposed to 48V DC bus noise and ESD events. IC Role / Device Role / Timing Role: Provides galvanic separation between controller UART and RS-485 transceiver, blocking ground loops while preserving 9.6–115.2kbps timing integrity. Use Value: Prevents system-wide communication failure during 4kV ESD discharge or 10kV surge events per IEC 61000-4-5, validated by 2.75kVRMS isolation rating. |
Use Scenario: Isolating an STM32H7-based motor controller's SPI interface from a high-voltage gate driver IC in a servo drive. IC Role / Device Role / Timing Role: Transfers 10MHz SPI clock and data across isolation barrier with <5ns propagation delay and <1ns pulse-width distortion. Use Value: Enables safe, deterministic command transmission to isolated half-bridge drivers without violating setup/hold timing at 100+ ns margins. |
| Battery Management System (BMS) | Medical Sensor Isolation |
|
Use Scenario: Isolating cell voltage monitoring ICs (e.g., AD7280A) from MCU in 800V EV battery packs operating at -40°C to +85°C. IC Role / Device Role / Timing Role: Transfers 16-bit ADC conversion results across isolation barrier with 150Mbps capability and 25kV/µs CMTI. Use Value: Maintains accurate SOC/SOH calculation despite >10kV common-mode transients induced by fast-switching SiC inverters. |
Use Scenario: Isolating EEG/ECG front-end analog signal chains from digital processing unit in Class II medical devices. IC Role / Device Role / Timing Role: Provides basic insulation (630VPK repetitive peak) compliant with IEC 60601-1 ed.3 for patient-connected circuits. Use Value: Meets 443VRMS working voltage requirement for MOOP (Means of Operator Protection) while enabling low-jitter digital data transfer. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar digital isolator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SI8641ED-B-IS | 4-channel, 5kVRMS, 150Mbps, 16-pin SOIC (narrow body), 2.5–5.5V supply only | Lacks 1.71V support and -40°C to +125°C extended temp grade; certified to UL1577/VDE 0884-10 (not -11) | Select when higher isolation voltage (5kVRMS) is required and 1.8V logic compatibility is unnecessary. |
| ISO6741FDWR | 4-channel, 5000VRMS, 50Mbps, 16-pin SOIC (wide), 1.71–5.5V, but only 1 default output state (high) | Lower max data rate limits use in high-speed SPI; lacks configurable default-low option for fail-safe reset signaling | Choose for cost-sensitive designs needing 5kVRMS certification and simpler configuration, accepting bandwidth trade-off. |
Compared with SI8641ED-B-IS and ISO6741FDWR, the MAX14930AASE+ uniquely combines 2.75kVRMS isolation, 150Mbps speed, full 1.71–5.5V dual-supply flexibility, and extended temperature range - making it optimal for high-reliability industrial and automotive subsystems requiring both performance and ruggedness.
Availability
MAX14930AASE+ is available at Aetrix Electronics and suitable for industrial fieldbus communications, isolated SPI/RS-485 interfaces, battery management systems, and medical sensor isolation requiring stable component supply across long production lifecycles.
Supply support for MAX14930AASE+ 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 MAX14930AASE+ belongs to Analog Devices' MAX1493x family of high-speed digital isolators, engineered specifically for demanding industrial automation and energy infrastructure applications requiring certified safety, low jitter, and wide supply voltage tolerance.
FAQ
What isolation voltage rating does the MAX14930AASE+ support, and which safety standards does it meet?
The MAX14930AASE+ is rated for 2.75kVRMS withstand voltage (60s), 443VRMS continuous working voltage (VIOWM), and 630VPK repetitive peak voltage (VIORM). It is certified to UL1577 (file E351759), CSA cUL (equivalent to Bulletin 5A), VDE 0884-11:2017-01 (Basic Insulation), and TÜV IEC 60950-1/61010-1/60601-1. These approvals validate its use in industrial, medical, and test equipment requiring reinforced insulation.
Does the MAX14930AASE+ support bidirectional communication like I²C?
No, the MAX14930AASE+ is a unidirectional digital isolator - all four channels transmit in one fixed direction (A→B or B→A depending on variant). For bidirectional protocols such as I²C, Analog Devices specifies the MAX14933 family. The MAX14930AASE+ is intended for SPI, RS-232, RS-485, and general-purpose digital I/O isolation where directionality is static and known at design time.
What is the minimum pulse width the MAX14930AASE+ can reliably pass at 150Mbps operation?
At its maximum 150Mbps data rate, the MAX14930AASE+ guarantees a minimum pulse width (PWMIN) of 6.67ns for signals crossing the isolation barrier (INA_ to OUTB_ or INB_ to OUTA_). This specification ensures clean transmission of narrow pulses used in high-frequency PWM feedback, encoder quadrature signals, or fast interrupt lines without edge degradation or dropout.
How does the MAX14930AASE+ handle supply undervoltage conditions?
The MAX14930AASE+ incorporates undervoltage lockout (UVLO) circuitry on both VDDA and VDDB rails, with thresholds of 1.45V–1.71V (typical hysteresis = 50mV). When either supply drops below UVLO, outputs enter a high-impedance or default state (configurable as high or low), preventing undefined logic states and metastability during power-up/power-down sequences - a critical feature for fault-tolerant industrial control systems.
Can the MAX14930AASE+ be used with 1.8V logic on one side and 5V logic on the other?
Yes - the MAX14930AASE+ supports independent 1.71V–5.5V supplies on both A-side (VDDA/GNDA) and B-side (VDDB/GNDB), enabling seamless level translation. For example, it can isolate a 1.8V FPGA I/O bank from a 5V RS-485 transceiver while maintaining full 150Mbps throughput and sub-6ns propagation delay, eliminating external level shifters and reducing BOM count.
MAX14930AASE+ 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:
- 4/1
- 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
MAX14930AASE+ FAQ
1.How can I place an order for MAX14930AASE+ through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX14930AASE+ 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 MAX14930AASE+ reliable?
The price and inventory of MAX14930AASE+ are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX14930AASE+ is usually 5 days.
3.What payment methods are accepted for MAX14930AASE+?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX14930AASE+ transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX14930AASE+?
MAX14930AASE+ orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX14930AASE+ 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 MAX14930AASE+?
For technical support, including MAX14930AASE+ datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX14930AASE+ requirements.
6.How does Aetrix verify that MAX14930AASE+ is sourced from the original manufacturer or authorized distributors?
All MAX14930AASE+ 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 MAX14930AASE+ meets industry standards.
7.What is the process for return or replacement of MAX14930AASE+?
All MAX14930AASE+ units undergo pre-shipment inspection (PSI). If there is an issue with MAX14930AASE+, 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 MAX14930AASE+ part is unused and in its original packaging.
Return procedure for MAX14930AASE+:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
MAX14930AASE+ Tags
-
ISO1212DBQR
Texas Instruments
-
ISO6721BDR
Texas Instruments
-
SI8710AC-B-ISR
Skyworks Solutions Inc.
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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
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ISO7762FDBQR
Texas Instruments
-
ISO7741DWR
Texas Instruments
-
ISO7741FDWR
Texas Instruments
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