MAX14431CAEE+ - 4-Channel 200Mbps Digital Isolator | ADI
N.º de pieza: MAX14431CAEE+ ✓ Activo| Cant. | Precio unitario | Total |
|---|---|---|
| 1 | $3.61 | $3,61 |
| 10 | $0 | $0,00 |
| 100 | $0 | $0,00 |
| 500 | $0 | $0,00 |
| 1.000 | $0 | $0,00 |
| 3.000 | $0 | $0,00 |
MAX14431CAEE+ Descripción general
A digital isolator is a signal-conditioning semiconductor that provides electrical separation between two circuits while allowing data to pass between them. Digital isolators belong to the interface IC and power-management-adjacent categories of semiconductor components. Unlike ordinary buffers or drivers, a galvanic isolator prevents ground potential differences, switching transients, and high-voltage events from being directly conveyed through the signal path. This makes digital isolators especially useful in industrial automation, communications, medical equipment, and other systems where functional isolation protects both equipment and users.
The MAX14431CAEE+ supports four isolated channels, configurable channel direction, and high-speed operation up to 200 Mbps. Verified distributor listings identify SPI digital isolation, 3000 Vrms withstand voltage, and typical CMTI of 50 kV/us as headline features. The narrow SSOP-16 package supports compact layouts, while the specified -40 C to +125 C operating range permits deployment across industrial temperature environments. Its low-power operation is useful when isolation must be maintained without allowing the isolator itself to dominate system energy use.
The MAX14431 family is based on proprietary process technology intended to combine low power, fast data transfer, and reinforced isolation behavior. Exact propagation-delay, pulse-width-distortion, channel-direction, and timing values must be confirmed from the applicable manufacturer datasheet before final timing-budget design. The narrow package also makes isolation-capacitor placement, creepage, clearance, and PCB contamination control important engineering concerns; isolation is not achieved simply by inserting the IC into the signal path.
Typical applications include isolated SPI links, industrial control and instrumentation, isolated data acquisition, power-conversion feedback, medical monitoring interfaces, and communication equipment. For these applications, the four-channel structure can reduce the number of discrete isolation components required. The combination of low supply voltage, fast digital transfer, and narrow package dimensions is valuable when the board area and standby power budget are constrained.
Designers should verify the complete pinout, input and output supply arrangement, channel-direction configuration, isolation capacitance, timing limits, and recommended PCB layout against the MAX14430-MAX14432 manufacturer datasheet. Decoupling capacitors should be placed near the relevant supply pins, and the isolation barrier should not be bridged by copper, solder mask contamination, or high-current return paths. This page combines verified distributor data, manufacturer documentation, practical design guidance, and sourcing information to support engineering selection.
Alternativas directas para MAX14431CAEE+ — mismo encapsulado, compatible pin a pin. Se excluyen las piezas de otro encapsulado que requieren retrabajo de la PCB.
Variantes de esta serie
Modelos de la misma serie compatibles directamente con MAX14431CAEE+ (mismo factor de forma y huella) — difiere en Package.
Herramienta de comparación rápida — seleccione piezas alternativas para compararlas lado a lado:
MAX14431CASE+
✅ Sustitución directa📋 Alternativa de referencia (no en el catálogo)
MAX14430EAEE+
✅ Sustitución directa📋 Alternativa de referencia (no en el catálogo)
MAX14430EASE+
✅ Sustitución directa📋 Alternativa de referencia (no en el catálogo)
MAX14432EAEE+
✅ Sustitución directa📋 Alternativa de referencia (no en el catálogo)
MAX14432EASE+
✅ Sustitución directa📋 Alternativa de referencia (no en el catálogo)
ISO7763FDWR
✅ Sustitución directa✓ En stock
$2.5 / unidad
Ver hoja de datos →MAX14431CAEE+ Especificaciones
| Channel Count | 4 channels |
| Maximum Data Rate | 200 Mbps |
| Isolation Voltage | 3000 Vrms |
| Isolation Voltage for Related Family | 3750 Vrms |
| Common-Mode Transient Immunity | 50 kV/us typical |
| Supply Voltage Range | 1.71 V to 5.5 V |
| Low-Power Operation | 0.58 mW per channel at 1 Mbps with 1.8 V supply |
| Channel Direction | Configurable |
| Temperatura de funcionamiento | -40 C to +125 C |
| Encapsulado | 16-SSOP, 0.154 inch / 3.90 mm width |
| Tipo de montaje | Surface mount |
| Tipo de interfaz | SPI digital isolator |
| Isolation Category | Digital galvanic isolator |
| Estado RoHS | Compliant |
| Número de pines | 16 pins |
Guía de configuración de pines de MAX14431CAEE+ 16-ssop, 0.154 inch / 3.90 mm width
Configuración de pines para MAX14431CAEE+ (encapsulado 16-ssop, 0.154 inch / 3.90 mm width). La numeración de pines, las funciones y los diagramas de conexión se definen en la hoja de datos del fabricante. Consúltela para conocer el footprint exacto y las directrices de soldadura.
No hay datos detallados de patillaje disponibles para MAX14431CAEE+.
Consulte la hoja de datos para ver la configuración completa de patillas.
Aplicaciones típicas
MAX14431CAEE+ es adecuado para 6 aplicacións: Isolated SPI Control Interface, Industrial Automation and Control, Instrumentation and Data Acquisition, Power-Conversion Feedback Isolation, Medical Monitoring Interfaces, Communication Equipment.
Isolated SPI Control Interface
The MAX14431CAEE+ fits an isolated SPI link where a controller must communicate across a high-voltage or ground-shifted domain. Its four channels provide flexibility for clock, data, and control signals, while the verified 200 Mbps maximum data rate supports fast digital transfers. The device operates from 1.71 V to 5.5 V and consumes as little as 0.58 mW per channel at 1 Mbps with a 1.8 V supply. Designers should verify input thresholds, propagation delay, and channel-direction configuration in the manufacturer datasheet.
Recomendado
Industrial Automation and Control
For industrial automation, the MAX14431CAEE+ can isolate low-level digital control signals from a higher-energy actuator or communications domain. Its 3000 Vrms isolation rating, 50 kV/us typical CMTI, and -40 C to +125 C operating range make it relevant to factory equipment where switching transients and temperature variation are concerns. The four-channel package also simplifies multi-signal isolation, although the final design must preserve creepage, clearance, and isolation-barrier layout requirements.
Recomendado
Instrumentation and Data Acquisition
The MAX14431CAEE+ is appropriate for isolated measurement front ends where sensor, converter, or host electronics may sit at different ground potentials. Four fast channels can carry clocks, enables, data lines, or status signals without creating a direct conductive path across the isolation barrier. Its low-voltage operation and configurable direction support compact mixed-signal systems. For high-accuracy analog measurement, the isolator should be paired with suitable front-end, conversion, and protection components after verifying timing and noise behavior.
Recomendado
Power-Conversion Feedback Isolation
In isolated power-conversion systems, MAX14431CAEE+ can transfer control or feedback signals across a high-side and low-side boundary. The 200 Mbps capability allows the isolator to handle fast digital control events, while its low-power specification helps preserve system efficiency. The component does not replace the power-stage safety barrier or its transformer or capacitor network. Engineers must verify allowable working voltage, transient immunity, layout creepage, and timing margins against the specific power-conversion architecture.
Recomendado
Medical Monitoring Interfaces
The MAX14431CAEE+ may support isolated communication or control paths in medical monitoring equipment when the required isolation architecture, leakage limits, and safety classifications are satisfied by the complete design. Its four channels and high-speed digital transfer can support isolated sensor interfaces, control signals, or communication links. The device itself should not be treated as a medical-safety approval. Compliance must be evaluated for the finished equipment, including applicable isolation, EMC, and regulatory requirements.
Recomendado
Communication Equipment
MAX14431CAEE+ can be used in communication modules that need high-speed isolation between a host controller and an external interface. The four-channel arrangement is useful for multiple digital signals, while the 200 Mbps rating helps accommodate demanding data paths. The device's supply range of 1.71 V to 5.5 V allows integration with both low-voltage and conventional logic systems. System-level reliability still depends on proper grounding, isolation-barrier geometry, transient protection, and verified signal-integrity behavior.
Recomendado
Resumen de productos recomendados
Datos de referencia de ingeniería para MAX14431CAEE+ — comparación, orientación de diseño e información de cumplimiento.
Guía de selección
Comparación con alternativas
| Parámetro | Este producto | MAX14431CASE+ | MAX14430EAEE+ | MAX14432EAEE+ | ISO7763FDWR |
|---|---|---|---|---|---|
| Channel Count | 4 channels | 4 channels | 4 channels | 4 channels | 4 channels |
| Package | 16-SSOP, 0.154 inch / 3.90 mm width | 16-SSOP | 16-QSOP/SSOP family context | 16-QSOP/SSOP family context | SSOP-16 |
| Brand | Analog Devices | Analog Devices | Analog Devices | Analog Devices | Texas Instruments |
Diferenciadores clave
- High-speed four-channel isolation (frente a MAX14431CASE+)
- Low-voltage low-power operation (frente a ISO7763FDWR)
- Verified transient-immunity headline specification (frente a MAX14430EAEE+)
Notas de diseño
Keep the isolated-side and logic-side copper regions physically separated according to the manufacturer recommended layout. Avoid routing high-current or fast-switching return paths beneath or across the isolation barrier. Preserve the specified creepage, clearance, and package land pattern, and keep contamination, solder residue, and copper dams from reducing the intended isolation distance.
Place the required bypass capacitors close to the device supply and ground pins, with short, low-inductance connections. Use the datasheet's recommended capacitance values and voltage ratings. Because MAX14431CAEE+ can operate from 1.71 V to 5.5 V, verify that every rail remains within its operating limits across tolerance, startup, and transient conditions.
For high-speed operation, control trace geometry and return paths so that clock and data signals experience acceptable timing and noise margins. Confirm propagation delay and pulse-width-distortion limits against the SPI clock rate, load capacitance, and system tolerance. Do not rely only on the headline 200 Mbps rating; signal integrity depends on the complete board layout and receiving device.
Do not assume that the 3000 Vrms isolation rating automatically makes a circuit compliant with every safety standard. Identify the required reinforced, basic, or functional isolation category, working voltage, pollution degree, and applicable certification for the finished product. Also verify the exact MAX14431CAEE+ pinout and channel-direction settings before fabrication.
Información de cumplimiento
RoHS compliance is explicitly shown in the verified JLCPCB result. Other compliance attributes were not established by the supplied data and must be confirmed with Analog Devices or the distributor.
