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Analog Devices Inc./Maxim Integrated MAX14930BASE+T
- Part No.:
- MAX14930BASE+T
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Digital Isolators
- Package:
- 16-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
MAX14930BASE+T.pdf
- Description:
- DGTL ISO 2750VRMS 4CH GP 16SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:5,018
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Product details
Overview
MAX14930BASE+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 between isolated power domains at up to +125°C ambient. It delivers 1Mbps data rate, 25kV/µs common-mode transient immunity (CMTI), and operates with independent 1.71V–5.5V supplies on both sides-enabling level translation in industrial SPI and RS-485 isolation.
For engineers reviewing the MAX14930BASE+T datasheet, MAX14930BASE+T pinout, MAX14930BASE+T application, or MAX14930BASE+T equivalent, this device is selected for high-reliability multichannel isolation where certified 2.75kVRMS withstand voltage, low propagation delay skew (<7ns channel-to-channel), and UL/VDE-certified basic insulation are required in fieldbus and battery management systems.
Technical Context
The MAX14930BASE+T implements capacitive isolation using Maxim's proprietary process, with four independent unidirectional channels (A-side inputs → B-side outputs). Its architecture supports default-low output state and features integrated enable control (ENA/ENB) for three-state output management during power sequencing or system sleep modes.
It meets IEC 60747-5-5 insulation requirements with VIOWM = 443VRMS continuous working voltage, VIORM = 630VPK repetitive peak, and VISO = 2750VRMS for 60s. Safety certifications include UL 1577 (3750VRMS), cUL CSA 5A, and VDE 0884-11 Basic Insulation-validated for medical (IEC 60601-1) and industrial (IEC 61010-1) applications.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Isolation Rating | 2750VRMS for 60s (VISO); enables safety-critical barrier compliance in Class I equipment |
| Data Rate | 1Mbps maximum - suitable for low-speed SPI, GPIO, and status signaling without timing closure risk |
| CMTI | 25kV/µs - rejects fast transients in motor drives and PLC backplanes without output corruption |
| Supply Range | 1.71V–5.5V per side - allows direct interfacing with 1.8V/3.3V/5V logic without external level shifters |
| Propagation Delay Skew | ≤6.7ns (channel-to-channel, same direction) - ensures deterministic timing across all 4 channels in synchronous protocols |
| Operating Temp | −40°C to +125°C - qualified for under-hood automotive, industrial control, and energy storage environments |
| Package | 16-pin wide-body SOIC (10.3mm × 7.5mm, 8mm creepage/clearance) - supports IPC-2221 Class B spacing for reinforced insulation |
Pinout & Package
MAX14930BASE+T uses a 16-pin wide-body SOIC package (outline 21-0042, land pattern 90-0107) with 8mm minimum creepage and clearance, rated for 2750VRMS isolation. Pin functions are defined per side: Side A (input/control) and Side B (output).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| INA1–INA4 | Side A digital inputs | Accept 1.71V–5.5V logic; referenced to GNDA; drive internal isolation capacitors |
| ENA | Side A output enable | Active-high; places OUTA1–OUTA4 in high-impedance when low - enables bus sharing |
| VDDA / GNDA | Side A power/ground | Supplies isolated input side; independent of VDDB/GNDB - enables level translation |
| INB1–INB4 | Side B digital inputs | Not present - MAX14930BASE+T is unidirectional A→B only |
| ENB | Side B output enable | Active-high; controls OUTB1–OUTB4 three-state behavior - supports bidirectional bus arbitration |
| VDDB / GNDB | Side B power/ground | Supplies isolated output side; decoupled from VDDA - eliminates ground loop noise coupling |
| OUTA1–OUTA4 | Side A outputs | Not present - MAX14930BASE+T has no A-side outputs (unidirectional A→B only) |
| OUTB1–OUTB4 | Side B digital outputs | CMOS-compatible; VOH ≥ VDDB − 0.4V, VOL ≤ 0.4V at 4mA - drives standard logic loads directly |
Key Features
| Feature | Design Value |
|---|---|
| 2.75kVRMS Isolation Withstand | Validated per UL1577 and VDE 0884-11 - enables single-protection insulation in medical and industrial safety standards |
| 1.71V–5.5V Dual-Supply Flexibility | Eliminates external level translators when interfacing mixed-voltage systems (e.g., 1.8V FPGA to 5V sensor) |
| Default-Low Output State | Ensures known logic state during power-up or input float - prevents spurious actuation in control systems |
| 25kV/µs CMTI | Rejects fast common-mode noise from IGBT switching or relay bounce - maintains data integrity in noisy plants |
| −40°C to +125°C Operation | Qualified across full range - supports deployment in battery packs, motor controllers, and outdoor infrastructure |
Applications
| Industrial Fieldbus Isolation | SPI Interface Isolation |
|---|---|
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: Unidirectional signal coupler bridging controller (Side A) and transceiver (Side B), with ENB enabling half-duplex bus control. Use Value: Prevents ground-loop currents and fault propagation while maintaining <1µs pulse-width integrity for reliable CRC checking. |
Use Scenario: Isolating SPI clock/MOSI/MISO/SS lines between an MCU and isolated ADC in a high-voltage energy meter. IC Role / Device Role / Timing Role: Four-channel A→B isolator preserving setup/hold timing margins at ≤1MHz clock rates with <55ns max propagation delay. Use Value: Enables safe measurement of 1000V AC mains while meeting IEC 61000-4-5 surge immunity (±10kV) without external TVS. |
| RS-485 Transceiver Isolation | Battery Management System (BMS) Monitoring |
Use Scenario: Galvanically isolating RS-485 differential drivers/receivers in distributed solar inverters communicating over 1km cable runs. IC Role / Device Role / Timing Role: Signal isolator for DE/RE control and RX/TX data paths, with ENB synchronized to transceiver enable timing. Use Value: Breaks earth-ground loops that cause communication errors in multi-inverter string configurations. |
Use Scenario: Isolating cell voltage and temperature monitoring signals from high-voltage battery stacks (up to 1000V) to low-voltage MCU domain. IC Role / Device Role / Timing Role: Unidirectional isolator for analog front-end status flags and fault alerts, operating at 125°C junction temperature. Use Value: Meets IEC 60601-1 MOOP requirements and provides 630VPK repetitive peak isolation for long-term reliability in EV traction packs. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar digital isolator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SI8640ED-B-IS | 4-channel, 2.5kVRMS, 150Mbps max data rate; 20kV/µs CMTI; 16-pin narrow SOIC (9.9mm × 3.9mm) | Higher speed but lower isolation rating; narrower package reduces PCB area but limits creepage to 4mm | Select when bandwidth >1Mbps is required and 2.5kVRMS suffices for end-equipment certification |
| ADUM1400ARWZ | 4-channel, 2.5kVRMS, 1Mbps max; 25kV/µs CMTI; 16-pin wide SOIC; default-high outputs | Same isolation and speed class, but lacks ENB control and has opposite default state | Choose when enable control is unnecessary and default-high logic aligns with system power-on behavior |
Compared with SI8640ED-B-IS and ADUM1400ARWZ, MAX14930BASE+T uniquely combines 2.75kVRMS certification, ENB-controlled three-state outputs, and default-low behavior - making it optimal for safety-critical industrial interfaces requiring guaranteed low-state startup and robust surge immunity.
Availability
MAX14930BASE+T is available at Aetrix Electronics and suitable for industrial fieldbus communications, isolated SPI interfaces, and battery management systems requiring stable component supply, long-term lifecycle support, and traceable sourcing for safety-certified designs.
Supply support for MAX14930BASE+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 technologies, serving industrial, automotive, communications, and healthcare markets.
The MAX14930BASE+T belongs to the MAX14930–MAX14932 family of high-isolation digital isolators designed specifically for demanding industrial automation, energy infrastructure, and medical systems requiring certified galvanic separation and extended temperature operation.
FAQ
What is the maximum data rate supported by the MAX14930BASE+T?
The MAX14930BASE+T supports a maximum data rate of 1Mbps. This is confirmed in the Dynamic Electrical Characteristics table for MAX1493_A/D variants, where DRMAX = 1Mbps is specified under test conditions including CL = 15pF and TA = −40°C to +125°C. The device is optimized for reliable low-speed isolation rather than high-bandwidth serial links.
Does the MAX14930BASE+T support bidirectional communication?
No, the MAX14930BASE+T is a unidirectional isolator with inputs on Side A (INA1–INA4) and outputs on Side B (OUTB1–OUTB4). It does not support reverse signal flow. For bidirectional applications like I²C, Analog Devices specifies the MAX14933 as the appropriate alternative within the same family.
What safety certifications apply to the MAX14930BASE+T?
The MAX14930BASE+T is certified to UL 1577 (3750VRMS), cUL CSA Bulletin 5A, and VDE 0884-11 Basic Insulation. It meets IEC 60601-1 (medical), IEC 61010-1 (industrial), and IEC 60950-1 (IT equipment) requirements with VIOWM = 443VRMS and VIORM = 630VPK - validated in file E351759 and TUV technical reports.
What is the default output state of the MAX14930BASE+T?
The MAX14930BASE+T has a default-low output state. When its inputs are unpowered or floating, the OUTB1–OUTB4 outputs settle to logic low. This behavior is explicitly stated in the General Description section and distinguishes it from default-high variants like the MAX14931.
Can the MAX14930BASE+T operate with different supply voltages on each side?
Yes, the MAX14930BASE+T supports independent supplies: VDDA (1.71V–5.5V) on Side A and VDDB (1.71V–5.5V) on Side B. This dual-supply capability enables level translation - for example, interfacing a 1.8V FPGA (Side A) with a 5V RS-485 transceiver (Side B) without external logic buffers.
MAX14930BASE+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:
- 4/0
- 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
MAX14930BASE+T FAQ
1.How can I place an order for MAX14930BASE+T through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX14930BASE+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 MAX14930BASE+T reliable?
The price and inventory of MAX14930BASE+T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX14930BASE+T is usually 5 days.
3.What payment methods are accepted for MAX14930BASE+T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX14930BASE+T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX14930BASE+T?
MAX14930BASE+T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX14930BASE+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 MAX14930BASE+T?
For technical support, including MAX14930BASE+T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX14930BASE+T requirements.
6.How does Aetrix verify that MAX14930BASE+T is sourced from the original manufacturer or authorized distributors?
All MAX14930BASE+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 MAX14930BASE+T meets industry standards.
7.What is the process for return or replacement of MAX14930BASE+T?
All MAX14930BASE+T units undergo pre-shipment inspection (PSI). If there is an issue with MAX14930BASE+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 MAX14930BASE+T part is unused and in its original packaging.
Return procedure for MAX14930BASE+T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
MAX14930BASE+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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ISO7762FDBQR
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ISO7741DWR
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ISO7741FDWR
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