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Analog Devices Inc./Maxim Integrated MAX14932CASE+T
- Part No.:
- MAX14932CASE+T
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Digital Isolators
- Package:
- 16-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
MAX14932CASE+T.pdf
- Description:
- DGTL ISO 2750VRMS 4CH GP 16SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:3,642
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Product details
Overview
MAX14932CASE+T from Analog Devices is a 4-channel, 2.75kVRMS galvanic digital isolator in a 16-pin wide SOIC package (10.3mm × 7.5mm), supporting unidirectional signal transfer between isolated power domains at up to +125°C ambient. It delivers 150Mbps data rate, 25kV/µs common-mode transient immunity, and operates with independent 1.71V–5.5V supplies on each side-enabling use in isolated SPI, RS-485, and battery management systems.
For engineers reviewing the MAX14932CASE+T datasheet, MAX14932CASE+T pinout, MAX14932CASE+T application, or MAX14932CASE+T equivalent, this page provides verified isolation parameters, channel configuration details, safety certifications (UL, VDE, cUL), thermal derating curves, and real-world design implications for industrial fieldbus and medical isolation interfaces.
Technical Context
The MAX14932CASE+T implements capacitive isolation with proprietary process technology, providing reinforced insulation rated for 2.75kVRMS withstand (60s), 443VRMS continuous working voltage (VIOWM), and 630VPK repetitive peak voltage (VIORM). Its architecture supports three unidirectional channel configurations-optimized for asymmetric I/O routing in SPI master-slave or RS-485 transceiver interfaces.
It features dual enable inputs (ENA/ENB), default-low output state, and integrated undervoltage lockout (1.45V–1.71V threshold) on both sides. Propagation delay skew is ≤0.9ns (same-direction channels) and ≤7.1ns (opposing-direction), with <1ps pulse-width distortion at 5V supply-critical for high-speed timing-critical isolation.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Isolation Rating | 2.75kVRMS for 60s (VISO); enables compliance with IEC 61010-1 and IEC 60601-1 for industrial and medical equipment |
| Data Rate | 150Mbps maximum-supports high-speed serial links such as isolated USB bridge control or fast sensor data acquisition |
| Common-Mode Transient Immunity | 25kV/µs-ensures reliable operation in noisy motor drive or power converter environments |
| Supply Voltage Range | 1.71V to 5.5V per side-allows direct interfacing with 1.8V FPGAs and 5V microcontrollers without level shifters |
| Propagation Delay Skew | ≤0.9ns (channel-to-channel, same direction)-minimizes timing skew in multi-bit parallel isolation (e.g., isolated ADC data bus) |
| Operating Temperature | −40°C to +125°C ambient-qualified for under-hood automotive, industrial PLC, and battery pack monitoring applications |
| Creepage & Clearance | 8mm (wide SOIC)-meets reinforced insulation requirements for 300VRMS working voltage in pollution degree 2 environments |
Pinout & Package
Package: 16-pin wide-body SOIC (10.3mm × 7.5mm), RoHS-compliant, outline number 21-0042, land pattern 90-0107.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| INA1–INA4 | Input signals on Side A | Accept logic-level signals referenced to GNDA; compatible with 1.71V–5.5V input thresholds |
| INB1–INB4 | Input signals on Side B | Accept logic-level signals referenced to GNDB; electrically isolated from Side A inputs |
| OUTA1–OUTA4 | Output signals on Side A | Drive loads referenced to GNDA; default-low state when ENA is inactive |
| OUTB1–OUTB4 | Output signals on Side B | Drive loads referenced to GNDB; default-low state when ENB is inactive |
| VDDA / VDDB | Power supplies | Independent 1.71V–5.5V supplies per side; enable level translation across isolation barrier |
| GNDA / GNDB | Ground references | Galvanically separated grounds-no shared return path between isolated domains |
| ENA / ENB | Output enable controls | Active-high enables outputs on respective side; tri-states outputs when low |
Key Features
| Feature | Design Value |
|---|---|
| Reinforced Isolation Barrier | 2.75kVRMS withstand (60s), 443VRMS continuous working voltage-certified to UL1577, VDE 0884-11, and IEC 61010-1 |
| High-Speed Timing Performance | 5.1ns typical propagation delay (tPLH) at 5V, <1ns pulse-width distortion-enables precise clock/data alignment in isolated high-speed links |
| Low-Power Operation | 10.5mA typical supply current per side at 1.8V/150Mbps-reduces thermal load in compact, sealed enclosures |
| Robust ESD Protection | ±4kV HBM on all pins-eliminates need for external TVS diodes in board-level ESD protection schemes |
| Configurable Default State | Default-low output behavior ensures safe de-assertion of critical control lines (e.g., gate drivers, enable signals) during power-up or fault |
Applications
| Industrial Fieldbus Isolation | Isolated SPI Interface |
|---|---|
Use Scenario: RS-485 communication node in a factory automation PLC rack exposed to motor drive noise and ground loops. IC Role / Device Role / Timing Role: Galvanic isolator for TX/RX data and DE/RE control lines between MCU and transceiver, breaking ground loops while preserving signal integrity. Use Value: 25kV/µs CMTI prevents bit errors during 400A motor switching transients; 8mm creepage meets IEC 61000-4-4 surge immunity requirements. | Use Scenario: Isolating an SPI bus between a host MCU and isolated ADC in a high-voltage battery monitoring system. IC Role / Device Role / Timing Role: Unidirectional isolator for SCLK, MOSI, and MISO lines, with separate enable control for each direction to manage bidirectional protocol timing. Use Value: 150Mbps data rate supports >1MSPS ADC sampling; <1ns channel skew maintains SPI setup/hold timing margins. |
| Battery Management System (BMS) | Medical Sensor Isolation |
Use Scenario: Cell voltage monitoring in a 1000V EV traction battery pack where module controllers must be isolated from central BMS MCU. IC Role / Device Role / Timing Role: Isolator for UART or custom serial telemetry from analog front-end ICs to isolated microcontroller domain. Use Value: −40°C to +125°C rating supports under-pack operation; 2.75kVRMS isolation exceeds IEC 60601-1 MOOP requirements for patient-connected equipment. | Use Scenario: Isolating EEG or ECG front-end sensor signals from digital processing unit in diagnostic imaging equipment. IC Role / Device Role / Timing Role: Digital isolator for control and status signals between isolated analog acquisition stage and host processor-no analog signal path involved. Use Value: VDE-certified basic insulation (630VPK) satisfies IEC 60601-1 3rd edition leakage current limits; 2pF barrier capacitance minimizes noise coupling into sensitive analog sections. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar digital isolator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ADUM4402ARWZ | 4-channel, 2.5kVRMS, 1Mbps max data rate; SOIC-16 package; lower CMTI (25kV/µs same, but no 150Mbps support) | Suitable for low-speed control isolation (e.g., relay drivers), not high-speed serial protocols | Select when cost sensitivity outweighs speed needs and 150Mbps is unnecessary |
| SI8642ED-B-IS | 4-channel, 5kVRMS, 150Mbps, SOIC-16; higher isolation rating but different enable logic (active-low EN) | Preferred for designs requiring 5kVRMS surge immunity (IEC 61000-4-5 Level 4) in harsh utility metering | Choose when enhanced surge robustness is mandatory and layout can accommodate active-low enable timing |
Compared with ADUM4402ARWZ and SI8642ED-B-IS, the MAX14932CASE+T uniquely balances 150Mbps speed, 2.75kVRMS isolation, and default-low output behavior-making it optimal for space-constrained, high-speed industrial interfaces where deterministic startup state is critical.
Availability
MAX14932CASE+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 assurance, and traceable sourcing.
Supply support for MAX14932CASE+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-reliability, high-speed digital isolation in demanding industrial and medical applications-emphasizing low jitter, tight timing skew, and certified safety compliance over generic signal isolation.
FAQ
What is the maximum data rate supported by the MAX14932CASE+T?
The MAX14932CASE+T supports a maximum data rate of 150Mbps, verified across all supply voltages (1.71V–5.5V) and temperature ranges (−40°C to +125°C). This performance is achieved with <1ns pulse-width distortion and ≤0.9ns channel-to-channel skew, making the MAX14932CASE+T suitable for high-speed isolated serial interfaces including SPI, RS-485, and custom high-bandwidth telemetry links.
Does the MAX14932CASE+T support bidirectional communication?
No, the MAX14932CASE+T is a unidirectional 4-channel isolator-channels are fixed as either A→B or B→A per device variant. For bidirectional protocols like I²C, Analog Devices specifies the MAX14933. The MAX14932CASE+T's channel mapping (e.g., INA1→OUTB1, INB1→OUTA1) is hardwired and cannot be reconfigured in-circuit; design must assign directionality during schematic capture.
What safety certifications does the MAX14932CASE+T hold?
The MAX14932CASE+T is certified to UL1577 (3750VRMS), cUL (CSA 5A), VDE 0884-11:2017 (Basic Insulation, 4600VPK transient), and TUV IEC 61010-1 and IEC 60601-1. These approvals cover 2.75kVRMS withstand voltage, 443VRMS working voltage, and 10kV surge per IEC 61000-4-5-validating its use in Class I medical devices and industrial control equipment.
How does the enable function operate on the MAX14932CASE+T?
The MAX14932CASE+T features two independent enable inputs: ENA controls all OUTA outputs, and ENB controls all OUTB outputs. Both are active-high; when asserted, outputs drive their logic state (default-low unless input is high); when de-asserted, outputs enter high-impedance (three-state) mode. Enable-to-data-valid delay is as low as 5.1ns at 5V, enabling precise timing control in synchronous isolation applications.
What is the thermal derating behavior of the MAX14932CASE+T in a wide SOIC package?
In the 16-pin wide SOIC package, the MAX14932CASE+T has a junction-to-ambient thermal resistance (θJA) of 71°C/W. Its safe power limit decreases linearly above +70°C ambient, derating at 14.1mW/°C-reaching ~1127mW at +70°C and ~600mW at +125°C. This derating ensures junction temperature remains ≤150°C under worst-case power dissipation, as validated in Analog Devices' safety limiting tables.
MAX14932CASE+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:
- 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
MAX14932CASE+T FAQ
1.How can I place an order for MAX14932CASE+T through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX14932CASE+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 MAX14932CASE+T reliable?
The price and inventory of MAX14932CASE+T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX14932CASE+T is usually 5 days.
3.What payment methods are accepted for MAX14932CASE+T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX14932CASE+T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX14932CASE+T?
MAX14932CASE+T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX14932CASE+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 MAX14932CASE+T?
For technical support, including MAX14932CASE+T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX14932CASE+T requirements.
6.How does Aetrix verify that MAX14932CASE+T is sourced from the original manufacturer or authorized distributors?
All MAX14932CASE+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 MAX14932CASE+T meets industry standards.
7.What is the process for return or replacement of MAX14932CASE+T?
All MAX14932CASE+T units undergo pre-shipment inspection (PSI). If there is an issue with MAX14932CASE+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 MAX14932CASE+T part is unused and in its original packaging.
Return procedure for MAX14932CASE+T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
MAX14932CASE+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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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
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