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Analog Devices Inc./Maxim Integrated MAX14930CASE+T
- Part No.:
- MAX14930CASE+T
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Digital Isolators
- Package:
- 16-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
MAX14930CASE+T.pdf
- Description:
- DGTL ISO 2750VRMS 4CH GP 16SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:4,190
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Product details
Overview
MAX14930CASE+T from Analog Devices is a 4-channel, unidirectional digital isolator with 2.75kVRMS galvanic isolation, 1Mbps data rate, and default-low output configuration in a 16-pin wide-body SOIC package (10.3mm × 7.5mm). It supports independent 1.71V–5.5V supplies on both sides, operates from –40°C to +125°C, and delivers robust common-mode transient immunity of 25kV/µs - ideal for isolated SPI and industrial fieldbus interfaces.
For engineers reviewing the MAX14930CASE+T datasheet, MAX14930CASE+T pinout, MAX14930CASE+T application, or MAX14930CASE+T equivalent, this device is selected for high-reliability multichannel isolation where safety-rated working voltage (443VRMS), low-power operation at 1Mbps, and UL/VDE-certified basic insulation are mandatory design requirements.
Technical Context
The MAX14930CASE+T implements capacitive isolation using Maxim's proprietary process, providing galvanically separated signal paths between two independent power domains. Its four channels are all unidirectional (A→B), with dedicated enable inputs (ENA/ENB) per side and default-low outputs - meaning each output drives logic low when its input is unpowered.
It features integrated undervoltage lockout (1.45V–1.71V threshold), supports level translation across 1.71V–5.5V supply ranges, and maintains timing integrity with propagation delay skew ≤6.7ns (channel-to-channel, same direction) and pulse-width distortion ≤4.5ns at 5V operation - enabling precise synchronization in isolated control loops.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Isolation Rating | 2.75kVRMS withstand (60s), 443VRMS continuous working voltage - meets IEC 60747-5-5 for basic insulation in industrial and medical systems |
| Data Rate | 1Mbps maximum - suitable for low-speed isolated SPI, RS-232, and digital I/O where timing margin and EMI resilience are prioritized over bandwidth |
| Supply Range | 1.71V to 5.5V on both sides - enables direct interfacing with 1.8V/2.5V/3.3V/5V microcontrollers and FPGAs without external level shifters |
| Propagation Delay | 38.2ns–58.4ns (tPLH/tPHL, VDD = 1.71V–5.5V) - ensures predictable latency for real-time feedback in motor control and PLC I/O modules |
| CMTI | 25kV/µs minimum - suppresses false triggering during fast transients in noisy industrial environments (e.g., VFDs, solenoid switching) |
| Operating Temperature | –40°C to +125°C ambient - qualified for under-hood automotive, battery management, and factory-floor automation applications |
| Package | 16-pin wide-body SOIC (10.3mm × 7.5mm, creepage/clearance = 8mm) - provides enhanced PCB creepage for reinforced isolation compliance |
Pinout & Package
Package: 16-pin wide-body SOIC (W16M+8), outline 21-0042, 8mm creepage/clearance, RoHS-compliant.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| INA1–INA4 | Primary-side digital inputs | Accept CMOS/TTL logic signals referenced to GNDA; VIH = 0.7×VDDA, VIL ≤ 0.8V |
| OUTB1–OUTB4 | Secondary-side digital outputs | CMOS outputs referenced to GNDB; VOH = VDDB–0.4V, VOL ≤ 0.4V at 4mA load |
| VDDA / GNDA | Primary-side power and ground | Supplies side A logic; UVLO activates below 1.45V to prevent metastable output states |
| VDDB / GNDB | Secondary-side power and ground | Supplies side B logic; independent biasing enables level translation and fault isolation |
| ENA / ENB | Output enable controls | Active-high enables respective side's outputs; three-state when deasserted - supports bus sharing |
Key Features
| Feature | Design Value |
|---|---|
| UL1577 & VDE 0884-11 certified | Validated 2.75kVRMS isolation barrier with 4600VPK transient rating - eliminates need for external safety certification effort |
| Default-low output state | Outputs drive low during power loss or input float - prevents undefined states in fail-safe control systems (e.g., emergency stop circuits) |
| 25kV/µs CMTI | Rejects fast common-mode noise from motor drives or switching PSUs without added filtering components |
| 1.71V–5.5V dual-supply flexibility | Enables direct connection to mixed-voltage SoCs (e.g., 1.8V FPGA core + 3.3V peripheral interface) without discrete level translators |
| –40°C to +125°C operation | Qualified across full industrial temperature range - supports deployment in uncooled enclosures and high-ambient environments |
Applications
| Industrial Fieldbus Interface | Isolated SPI Communication |
|---|---|
|
Use Scenario: Isolating Modbus RTU or Profibus DP nodes in factory automation cabinets exposed to 48V DC bus noise and ground potential differences. IC Role / Device Role / Timing Role: Provides channelized galvanic separation between controller UART and transceiver IC, blocking ground loops while preserving 9600–115.2kbps timing integrity. Use Value: Eliminates communication errors caused by >100V ground differentials and 10kV surge events per IEC 61000-4-5, extending node uptime. |
Use Scenario: Connecting an isolated ADC (e.g., AD7768) to an MCU in a high-precision sensor front-end where analog and digital grounds must be separated. IC Role / Device Role / Timing Role: Transfers SPI clock, MOSI, MISO, and CS signals across isolation barrier with <6.7ns channel skew - maintaining setup/hold margins at 1MHz SCLK. Use Value: Enables 24-bit measurement accuracy by preventing digital switching noise from coupling into sensitive analog sections. |
| Battery Management System (BMS) | Medical Isolated Data Acquisition |
|
Use Scenario: Isolating cell monitoring ICs (e.g., LTC6813) from main system MCU in EV battery packs operating up to 800V DC bus. IC Role / Device Role / Timing Role: Transfers voltage/temperature status and fault alerts across barrier with 443VRMS working voltage rating - compliant with IEC 61010-1 for functional insulation. Use Value: Prevents single-point failure from propagating across isolation boundary, meeting ASIL-B functional safety requirements. |
Use Scenario: Isolating ECG/EEG front-end analog signal chains from USB or Ethernet digital interfaces in patient-connected diagnostic equipment. IC Role / Device Role / Timing Role: Provides 2.75kVRMS patient protection (1 MOOP) while transmitting digitized sensor data at 1Mbps - meeting IEC 60601-1 ed.3 creepage requirements. Use Value: Achieves required 8mm creepage in compact layout without custom spacing, reducing board area and cost. |
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, 1Mbps, 2.5kVRMS isolation; 16-pin narrow SOIC (9.9mm × 3.9mm); default-high outputs | Limited to 2.5kVRMS and narrower creepage (4mm); lacks VDE 0884-11 certification | Select when board space is constrained and 2.5kVRMS suffices; verify default-high behavior aligns with system fail-safe logic. |
| ISO6740QDWR | 4-channel, 1Mbps, 5kVRMS isolation; 16-pin SOIC; default-low outputs; AEC-Q100 qualified | Higher isolation rating (5kVRMS) and automotive qualification; larger thermal resistance (θJA = 71°C/W vs. 50°C/W for narrow SOIC variants) | Choose for automotive BMS or traction inverter gate drivers requiring 5kVRMS and AEC-Q100; confirm thermal budget at 125°C ambient. |
Compared with SI8640ED-B-IS and ISO6740QDWR, the MAX14930CASE+T uniquely balances 2.75kVRMS VDE/UL certification, 8mm creepage in wide SOIC, and default-low fail-safe behavior - making it optimal for industrial PLC I/O modules where regulatory alignment and deterministic power-loss response are critical.
Availability
MAX14930CASE+T is available at Aetrix Electronics and suitable for industrial fieldbus interfaces, isolated SPI subsystems, battery management systems, and medical data acquisition requiring stable component supply and long-term lifecycle support.
Supply support for MAX14930CASE+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 MAX14930CASE+T belongs to the MAX14930–MAX14932 family of high-isolation digital isolators designed specifically for demanding industrial and medical applications requiring certified safety, wide temperature operation, and flexible supply voltage support.
FAQ
What is the isolation voltage rating of the MAX14930CASE+T?
The MAX14930CASE+T is rated for 2.75kVRMS withstand isolation voltage for 60 seconds (VISO), with a continuous working voltage of 443VRMS (VIOWM) and peak repetitive voltage of 630VPK (VIORM). It is certified to UL1577, VDE 0884-11 (Basic Insulation), and IEC 61010-1, making it suitable for industrial and medical applications requiring reinforced insulation.
Does the MAX14930CASE+T support bidirectional communication?
No, the MAX14930CASE+T is a unidirectional isolator with all four channels configured A→B only. For bidirectional applications such as I²C, Analog Devices recommends the MAX14933. The MAX14930CASE+T uses separate enable pins (ENA/ENB) and default-low outputs, optimized for SPI, RS-232, and digital I/O where directionality is fixed.
What is the meaning of "default-low" in the MAX14930CASE+T datasheet?
"Default-low" means that when the input side (INAx) is unpowered or floating, the corresponding output (OUTBx) actively drives logic low. This fail-safe behavior prevents undefined states in safety-critical systems - for example, holding a motor enable line inactive during power-up or brownout conditions in the MAX14930CASE+T.
Can the MAX14930CASE+T operate with different supply voltages on each side?
Yes, the MAX14930CASE+T supports independent 1.71V to 5.5V supplies on VDDA/GNDA and VDDB/GNDB. This allows level translation - for instance, interfacing a 1.8V FPGA I/O bank with a 3.3V isolated transceiver - without external logic-level shifters, simplifying design and reducing BOM count for the MAX14930CASE+T.
What safety certifications does the MAX14930CASE+T hold?
The MAX14930CASE+T is certified to UL1577 (file E351759), cUL (CSA Bulletin 5A), VDE 0884-11:2017-01 (basic insulation), TUV, and IEC 60601-1 (medical), with validated 2.75kVRMS isolation and 8mm creepage. These certifications cover industrial, medical, and test equipment applications requiring functional or patient protection insulation.
MAX14930CASE+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:
- 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
MAX14930CASE+T FAQ
1.How can I place an order for MAX14930CASE+T through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX14930CASE+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 MAX14930CASE+T reliable?
The price and inventory of MAX14930CASE+T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX14930CASE+T is usually 5 days.
3.What payment methods are accepted for MAX14930CASE+T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX14930CASE+T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX14930CASE+T?
MAX14930CASE+T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX14930CASE+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 MAX14930CASE+T?
For technical support, including MAX14930CASE+T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX14930CASE+T requirements.
6.How does Aetrix verify that MAX14930CASE+T is sourced from the original manufacturer or authorized distributors?
All MAX14930CASE+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 MAX14930CASE+T meets industry standards.
7.What is the process for return or replacement of MAX14930CASE+T?
All MAX14930CASE+T units undergo pre-shipment inspection (PSI). If there is an issue with MAX14930CASE+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 MAX14930CASE+T part is unused and in its original packaging.
Return procedure for MAX14930CASE+T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
MAX14930CASE+T Tags
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ISO1212DBQR
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ISO6721BDR
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SI8710AC-B-ISR
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ISO7720FDR
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ISO7721DR
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ISO7721FDR
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SI8710CC-B-ISR
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ISO6741FQDWRQ1
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ISO7721DWVR
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ISO7762FDBQR
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ISO7741DWR
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ISO7741FDWR
Texas Instruments
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