ADUM5403ARWZ-RL7 - Quad-Channel Digital Isolator with isoPower | Analog Devices
N.º de pieza: ADUM5403ARWZ-RL7 ✓ Activo| Cant. | Precio unitario | Total |
|---|---|---|
| 1 | $10.75 | $10,75 |
| 10 | $9.68 | $96,80 |
| 100 | $8.6 | $860,00 |
| 500 | $7.53 | $3.765,00 |
| 1.000 | $6.45 | $6.450,00 |
ADUM5403ARWZ-RL7 Descripción general
Digital isolators are components that provide galvanic isolation between two circuits while allowing digital signals to pass across the isolation barrier. They are essential in applications where ground potential differences, noise, or safety requirements demand separation between the input and output sides. The ADUM5403 belongs to the family of isolated data communication ICs, which includes digital isolators, isolated transceivers, and isolated power converters. By integrating the DC-to-DC converter, the ADUM5403 eliminates the need for a separate isolated power supply, simplifying design and reducing board space.
Key features of the ADUM5403ARWZ-RL7 include its integrated isoPower DC-to-DC converter, which provides up to 500 mW of regulated output power, and its four independent isolation channels. The device supports both 3.3 V and 5 V logic levels, making it versatile for various system interfaces. Its high common-mode transient immunity of >25 kV/µs ensures reliable operation in noisy industrial environments. The 16-lead SOIC package with 7.6 mm creepage meets safety requirements for reinforced insulation in many applications.
Technically, the ADUM5403 uses Analog Devices' iCoupler technology, which employs chip-scale transformers to transmit data and power across the isolation barrier. This approach offers advantages over optocouplers, including higher data rates, lower power consumption, and better reliability. The integrated DC-to-DC converter uses a push-pull topology to generate isolated power, with regulation achieved through a feedback path across the barrier. The device includes under-voltage lockout (UVLO) and thermal shutdown protection to ensure safe operation.
Typical applications for the ADUM5403ARWZ-RL7 include industrial field bus isolation, motor control interfaces, isolated SPI/UART communication, and power supply control in isolated converters. Its integrated power makes it ideal for isolated sensor interfaces and data acquisition systems where a separate isolated supply would be impractical. The device is also suitable for medical equipment requiring patient isolation, as well as for automotive and aerospace systems where reliability is critical.
When designing with the ADUM5403, it is important to ensure adequate decoupling on both the input and output power pins, as the integrated converter can generate switching noise. The datasheet recommends specific capacitor values and layout guidelines to achieve optimal performance. Additionally, the creepage distance of 7.6 mm should be considered for applications requiring specific isolation ratings.
Alternativas directas para ADUM5403ARWZ-RL7 — 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 ADUM5403ARWZ-RL7 (mismo factor de forma y huella) — difiere en Input Supply Voltage, Data Rate, Package, Integrated DC-to-DC Converter.
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ADUM5403ARWZ
✅ Sustitución directa✓ En stock
$7.8 / unidad
Ver hoja de datos →ADUM5403CRWZ
✅ Sustitución directa📋 Alternativa de referencia (no en el catálogo)
ADUM5403WCRWZ
✅ Sustitución directa📋 Alternativa de referencia (no en el catálogo)
ADUM5401ARWZ
✅ Sustitución directa✓ En stock
$5.5 / unidad
Ver hoja de datos →ADUM5402ARWZ
✅ Sustitución directa✓ En stock
$4.75 / unidad
Ver hoja de datos →ISO7742DW
✅ Sustitución directa ⚠️ Especificaciones sin verificar📋 Alternativa de referencia (no en el catálogo)
ADUM5403ARWZ-RL7 Especificaciones
| Number of Channels | 4 |
| Isolation Voltage | 2500 Vrms |
| Velocidad de datos | 25 Mbps (NRZ) |
| Common-Mode Transient Immunity | >25 kV/µs |
| Integrated DC-to-DC Converter | Yes (isoPower) |
| Output Power | 500 mW |
| Output Voltage (VISO) | 3.3 V or 5.0 V |
| Input Supply Voltage | 3.0 V to 5.5 V |
| Encapsulado | 16-SOIC (0.295", 7.50mm Width) |
| Creepage Distance | 7.6 mm |
| Rango de temperatura de funcionamiento | -40°C to +105°C |
| Estado RoHS | Compliant |
| Tipo de montaje | Surface Mount |
Configuración de pines de ADUM5403ARWZ-RL7
| Pin 1 | VDD1 — Input supply voltage (3.0V to 5.5V) |
| Pin 2 | GND1 — Input ground |
| Pin 3 | VIA — Input channel A |
| Pin 4 | VIB — Input channel B |
| Pin 5 | VIC — Input channel C |
| Pin 6 | VID — Input channel D |
| Pin 7 | VE1 — Enable input 1 |
| Pin 8 | VE2 — Enable input 2 |
| Pin 9 | GNDISO — Isolated ground |
| Pin 10 | VISO — Isolated output voltage (3.3V or 5.0V) |
| Pin 11 | VOA — Output channel A |
| Pin 12 | VOB — Output channel B |
| Pin 13 | VOC — Output channel C |
| Pin 14 | VOD — Output channel D |
| Pin 15 | GND1 — Input ground (second pin) |
| Pin 16 | VDD1 — Input supply voltage (second pin) |
Aplicaciones típicas
ADUM5403ARWZ-RL7 es adecuado para 6 aplicacións: Industrial Fieldbus Isolation, Isolated SPI/UART Communication, Motor Control and Drive Isolation, Isolated Power Supply Control, Medical Equipment Patient Isolation, Isolated Sensor Interface.
Industrial Fieldbus Isolation
The ADUM5403ARWZ-RL7 provides galvanic isolation for industrial fieldbus interfaces such as RS-485, CAN, and Profibus. Its integrated isoPower eliminates the need for a separate isolated DC-DC converter, simplifying the BOM and reducing board space. With a data rate of 25 Mbps and CMTI of >25 kV/µs, it ensures reliable communication in noisy industrial environments. The 2.5 kVrms isolation protects against ground loops and voltage transients, while the 500 mW output power can supply the transceiver and other circuitry on the isolated side. This makes it ideal for PLCs, motor drives, and factory automation systems where robust isolation is critical.
Recomendado
Isolated SPI/UART Communication
The ADUM5403ARWZ-RL7 is well-suited for isolating SPI or UART interfaces between microcontrollers and peripheral devices. Its four channels can be configured as 2 forward and 2 reverse, supporting full-duplex communication. The integrated DC-DC converter provides isolated power to the peripheral, eliminating the need for an external isolated supply. With 25 Mbps data rate, it easily handles high-speed SPI clocks. The device's low propagation delay and high CMTI ensure data integrity in electrically noisy environments. This application is common in data acquisition systems, isolated sensor interfaces, and medical devices where patient isolation is required.
Recomendado
Motor Control and Drive Isolation
In motor control applications, the ADUM5403ARWZ-RL7 isolates the control circuitry from the high-voltage power stage. Its integrated isoPower provides a clean, isolated supply for gate drivers and current sensing circuits. The high CMTI of >25 kV/µs ensures that fast switching transients from the inverter do not corrupt the control signals. The 2.5 kVrms isolation rating meets safety requirements for industrial drives. The device's 500 mW output power is sufficient for gate driver ICs and auxiliary circuits. This simplifies the design of variable frequency drives, servo drives, and robotics, reducing component count and improving reliability.
Recomendado
Isolated Power Supply Control
The ADUM5403ARWZ-RL7 can be used to isolate the feedback and control signals in switch-mode power supplies. Its integrated isoPower can provide the bias supply for the secondary-side controller, eliminating the need for a separate auxiliary winding. The four channels allow for both forward and reverse communication, enabling synchronous rectification and voltage/current feedback. The high data rate supports fast control loops, while the isolation ensures safety between primary and secondary sides. This application is common in AC-DC adapters, isolated DC-DC converters, and battery chargers. The device's 500 mW output power is adequate for most secondary-side control ICs.
Recomendado
Medical Equipment Patient Isolation
The ADUM5403ARWZ-RL7 is ideal for medical devices requiring patient isolation, such as ECG monitors, patient monitors, and infusion pumps. Its 2.5 kVrms isolation rating meets IEC 60601-1 requirements for basic isolation. The integrated isoPower provides isolated power to the patient-side circuitry, reducing leakage current and improving safety. The device's low power consumption and small footprint make it suitable for portable medical devices. The high CMTI ensures reliable operation in the presence of defibrillator pulses and other transients. This simplifies the design of isolated data acquisition and communication interfaces in medical equipment.
Recomendado
Isolated Sensor Interface
The ADUM5403ARWZ-RL7 provides a complete isolated interface for sensors such as temperature, pressure, and flow sensors. Its integrated isoPower supplies the sensor and signal conditioning circuitry on the isolated side, eliminating the need for a separate isolated supply. The four channels can be used for data, clock, and control signals, supporting various sensor protocols. The high data rate and low propagation delay ensure accurate real-time data transmission. The device's small package and high reliability make it suitable for industrial process control and remote monitoring systems. This simplifies the design of isolated sensor nodes in factory automation and building automation.
Recomendado
Resumen de productos recomendados
Datos de referencia de ingeniería para ADUM5403ARWZ-RL7 — comparación, orientación de diseño e información de cumplimiento.
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Comparación con alternativas
| Parámetro | Este producto | ADUM5403ARWZ | ADUM5403CRWZ | ADUM5403WCRWZ | ADUM5401ARWZ | ADUM5402ARWZ | ISO7742DW |
|---|---|---|---|---|---|---|---|
| Package | 16-SOIC | 16-SOIC | 16-SOIC | 16-SOIC | 16-SOIC | 16-SOIC | 16-SOIC |
| Brand | Analog Devices | Analog Devices | Analog Devices | Analog Devices | Analog Devices | Analog Devices | Texas Instruments |
| Isolation Voltage | 2500 Vrms | 2500 Vrms | 2500 Vrms | 2500 Vrms | 2500 Vrms | 2500 Vrms | 5000 Vrms |
| Data Rate | 25 Mbps | 25 Mbps | 25 Mbps | 25 Mbps | 25 Mbps | 25 Mbps | 100 Mbps |
| Integrated DC-DC Converter | Yes (500 mW) | Yes (500 mW) | Yes (500 mW) | Yes (500 mW) | Yes (500 mW) | Yes (500 mW) | No |
| Channel Configuration | 2 forward, 2 reverse | 2 forward, 2 reverse | 2 forward, 2 reverse | 2 forward, 2 reverse | 3 forward, 1 reverse | 2 forward, 2 reverse | 2 forward, 2 reverse |
| Operating Temperature Range | -40°C to +105°C | -40°C to +105°C | -40°C to +125°C | -40°C to +125°C | -40°C to +105°C | -40°C to +105°C | -55°C to +125°C |
| Automotive Grade | No | No | No | Yes (AEC-Q100) | No | No | No |
Diferenciadores clave
- Integrated isoPower DC-DC converter (frente a ISO7742DW)
- High common-mode transient immunity (frente a ISO7742DW)
- Multiple temperature and grade options (frente a ADUM5403ARWZ)
Notas de diseño
The integrated isoPower DC-DC converter requires careful decoupling. Place a 0.1 µF ceramic capacitor close to VDD1 and GND1, and a 1 µF capacitor on VISO and GNDISO. The datasheet recommends a minimum load of 10% of the rated output power to maintain regulation. Ensure the input supply can provide sufficient current for both the logic and the converter (up to 500 mW output).
Maintain adequate creepage and clearance distances on the PCB to meet the isolation rating. The 16-SOIC package has 7.6 mm creepage, but the PCB layout must also provide at least 7.6 mm spacing between the input and output side copper. Use a slot or cutout under the device to increase the creepage path if needed. Follow the layout guidelines in the ADI datasheet for optimal isolation performance.
The ADUM5403ARWZ-RL7 can dissipate up to 1 W when delivering 500 mW at high ambient temperatures. The 16-SOIC package has a thermal resistance of approximately 80°C/W (theta_JA). At 105°C ambient, the junction temperature could reach 185°C, exceeding the maximum rating. Ensure adequate airflow or a thermal pad on the PCB to keep the junction temperature within limits. Derate the output power at high temperatures.
Información de cumplimiento
RoHS compliant per ADI product page. Not AEC-Q100 qualified for base part; automotive grade available as ADUM5403WCRWZ.