ADUM5404ARWZ - Quad-Channel Digital Isolator with isoPower | Analog Devices
N.º de pieza: ADUM5404ARWZ ✓ Activo| Cant. | Precio unitario | Total |
|---|---|---|
| 1 | $8.52 | $8,52 |
| 10 | $7.68 | $76,80 |
| 100 | $6.84 | $684,00 |
| 500 | $6.12 | $3.060,00 |
| 1.000 | $5.49 | $5.490,00 |
ADUM5404ARWZ Descripción general
Digital isolators are components that transfer digital signals across an isolation barrier while preventing unwanted DC and noise from passing between two ground domains. They are essential in systems where safety, noise immunity, or ground potential differences require galvanic isolation. The ADUM5404 integrates the isolation barrier and a DC-to-DC converter, eliminating the need for a separate isolated power supply, thus simplifying design and reducing board space.
Key features include four independent isolation channels, an integrated DC-to-DC converter providing up to 500 mW of regulated, isolated power, and a wide operating temperature range. The device operates from a single 5V supply and provides a regulated 5V isolated output. Its high CMTI of 25 kV/µs ensures reliable operation in noisy industrial environments, and its 1 Mbps data rate is suitable for most control and communication interfaces.
Technically, the ADUM5404 uses Analog Devices' iCoupler technology, which employs chip-scale transformers for isolation, offering superior performance compared to optocouplers in terms of speed, power consumption, and reliability. The integrated DC-to-DC converter uses a push-pull topology with an internal oscillator, providing a regulated output with typical efficiency around 30-40% at full load. The device includes under-voltage lockout (UVLO) and thermal shutdown protection.
Typical applications include industrial fieldbus isolation, motor control interfaces, isolated SPI/UART communication, and medical equipment requiring patient isolation. The integrated power supply makes it ideal for isolated sensor interfaces and data acquisition systems where a separate isolated supply is impractical.
When designing with the ADUM5404, ensure adequate bypass capacitors on both input and output power pins to maintain stability and reduce noise. The datasheet recommends a 0.1 µF and 10 µF capacitor on the input and a 0.1 µF and 10 µF on the isolated output. Also, consider the total power budget, as the integrated converter's efficiency limits the available output current.
Alternativas directas para ADUM5404ARWZ — 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 ADUM5404ARWZ (mismo factor de forma y huella) — difiere en Package, Input Supply Voltage, Data Rate, Isolation Voltage, Output Supply Voltage.
Herramienta de comparación rápida — seleccione piezas alternativas para compararlas lado a lado:
ADUM5404CRWZ
✅ Sustitución directa📋 Alternativa de referencia (no en el catálogo)
ADUM5401ARWZ
✅ Sustitución directa ⚠️ Especificaciones sin verificar✓ En stock
$5.5 / unidad
Ver hoja de datos →ADUM5402ARWZ
✅ Sustitución directa ⚠️ Especificaciones sin verificar✓ En stock
$4.75 / unidad
Ver hoja de datos →ADUM5403ARWZ
✅ Sustitución directa ⚠️ Especificaciones sin verificar✓ En stock
$7.8 / unidad
Ver hoja de datos →ISO7742DW
✅ Sustitución directa ⚠️ Especificaciones sin verificar📋 Alternativa de referencia (no en el catálogo)
ADUM5404ARWZ Especificaciones
| Number of Channels | 4 |
| Isolation Voltage | 2500 Vrms |
| Velocidad de datos | 1 Mbps |
| Common-Mode Transient Immunity (CMTI) | 25 kV/µs |
| Integrated DC-DC Converter | Yes, isoPower |
| Isolated Output Power | 500 mW |
| Input Supply Voltage | 5 V |
| Isolated Output Voltage | 5 V (regulated) |
| Encapsulado | 16-SOIC (0.295", 7.50mm Width) |
| Rango de temperatura de funcionamiento | -40°C to +105°C |
| Estado RoHS | Compliant |
| Tipo de montaje | Surface Mount |
Configuración de pines de ADUM5404ARWZ
| Pin 1 | VDD1 — Input supply voltage (5V) |
| Pin 2 | GND1 — Input ground |
| Pin 3 | VIA — Input channel A |
| Pin 4 | VOA — Output channel A |
| Pin 5 | VIB — Input channel B |
| Pin 6 | VOB — Output channel B |
| Pin 7 | VIC — Input channel C |
| Pin 8 | VOC — Output channel C |
| Pin 9 | GND2 — Isolated ground |
| Pin 10 | VISO — Isolated output voltage (5V) |
| Pin 11 | VID — Input channel D |
| Pin 12 | VOD — Output channel D |
| Pin 13 | NC — No connect |
| Pin 14 | NC — No connect |
| Pin 15 | GND1 — Input ground |
| Pin 16 | VDD1 — Input supply voltage (5V) |
Aplicaciones típicas
ADUM5404ARWZ es adecuado para 6 aplicacións: Industrial Fieldbus Isolation, Motor Control Interface, Isolated SPI/UART Communication, Medical Equipment Patient Isolation, Isolated Sensor Data Acquisition, Power Supply Feedback Isolation.
Industrial Fieldbus Isolation
The ADUM5404ARWZ provides galvanic isolation for fieldbus interfaces such as RS-485, CAN, and PROFIBUS. Its integrated DC-DC converter supplies isolated power to the bus transceiver, eliminating the need for a separate isolated supply. With 2500 Vrms isolation and 25 kV/µs CMTI, it ensures reliable communication in noisy industrial environments. The 1 Mbps data rate is sufficient for most fieldbus protocols, and the 16-lead SOIC package fits compact PLC and I/O modules.
Recomendado
Motor Control Interface
In motor control systems, the ADUM5404ARWZ isolates the microcontroller from the power stage, protecting low-voltage logic from high-voltage transients. Its integrated DC-DC converter powers the gate driver and feedback circuits on the isolated side. The high CMTI of 25 kV/µs ensures stable operation during fast switching of IGBTs or MOSFETs. The 1 Mbps data rate handles PWM and encoder signals, while the 500 mW output power is sufficient for gate drivers and sensors.
Recomendado
Isolated SPI/UART Communication
The ADUM5404ARWZ is ideal for isolating SPI or UART interfaces between microcontrollers and peripheral devices such as ADCs, DACs, or sensors. Its four channels can carry SCLK, MOSI, MISO, and CS signals, while the integrated DC-DC converter powers the isolated side. The 1 Mbps data rate supports most SPI and UART speeds, and the 2500 Vrms isolation protects against ground loops and noise. The compact SOIC package is suitable for space-constrained designs.
Recomendado
Medical Equipment Patient Isolation
The ADUM5404ARWZ provides the isolation required for medical devices to protect patients from electric shock. Its 2500 Vrms isolation rating meets basic insulation requirements for many medical applications. The integrated DC-DC converter eliminates the need for a separate isolated supply, simplifying the design of patient monitoring and diagnostic equipment. The low power consumption and small package make it suitable for portable devices.
Recomendado
Isolated Sensor Data Acquisition
The ADUM5404ARWZ is used in data acquisition systems to isolate sensors from the main controller, preventing ground loops and noise. Its integrated DC-DC converter powers the sensor and signal conditioning circuitry on the isolated side. The 1 Mbps data rate is sufficient for most sensor interfaces, and the 500 mW output power can drive multiple sensors. The high CMTI ensures accurate data transfer in industrial environments.
Recomendado
Power Supply Feedback Isolation
The ADUM5404ARWZ can be used to isolate feedback signals in power supply designs, providing safety and noise immunity. Its integrated DC-DC converter can power the secondary-side control circuitry, eliminating the need for an auxiliary winding. The 1 Mbps data rate is sufficient for PWM feedback signals, and the 2500 Vrms isolation protects the primary-side controller from secondary-side transients.
Recomendado
Resumen de productos recomendados
Datos de referencia de ingeniería para ADUM5404ARWZ — comparación, orientación de diseño e información de cumplimiento.
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Comparación con alternativas
| Parámetro | Este producto | ADUM5404CRWZ | ADUM5401ARWZ | ADUM5402ARWZ | ADUM5403ARWZ | ISO7742DW |
|---|---|---|---|---|---|---|
| Package | 16-SOIC (0.295", 7.50mm Width) | 16-SOIC (0.295", 7.50mm Width) | 16-SOIC (0.295", 7.50mm Width) | 16-SOIC (0.295", 7.50mm Width) | 16-SOIC (0.295", 7.50mm Width) | 16-SOIC (0.295", 7.50mm Width) |
| Brand | Analog Devices | Analog Devices | Analog Devices | Analog Devices | Analog Devices | Texas Instruments |
| Isolation Voltage | 2500 Vrms | 2500 Vrms | 2500 Vrms | 2500 Vrms | 2500 Vrms | 5000 Vrms |
| Data Rate | 1 Mbps | 1 Mbps | 1 Mbps | 1 Mbps | 1 Mbps | 100 Mbps |
| Integrated DC-DC Converter | Yes | Yes | Yes | Yes | Yes | No |
| Isolated Output Power | 500 mW | 500 mW | 500 mW | 500 mW | 500 mW | N/A |
| CMTI | 25 kV/µs | 25 kV/µs | 25 kV/µs | 25 kV/µs | 25 kV/µs | 100 kV/µs |
Diferenciadores clave
- Integrated DC-DC converter (frente a ISO7742DW)
- Lower supply current (frente a ADUM5404CRWZ)
- Quad-channel configuration (frente a ADUM5401ARWZ)
Notas de diseño
The integrated DC-DC converter requires proper bypassing on both input and output. Place a 0.1 µF and 10 µF capacitor close to VDD1 and GND1, and similarly on VISO and GND2. The datasheet recommends low-ESR ceramic capacitors for high-frequency noise suppression and larger value capacitors for ripple and regulation.
Maintain adequate creepage and clearance distances on the PCB to meet the isolation rating. The 16-lead SOIC package has a minimum creepage of 7.6 mm, but ensure the PCB layout provides at least that distance between input and output sides. Use a ground plane on each side but do not connect them across the isolation barrier.
The ADUM5404ARWZ dissipates power due to the integrated DC-DC converter. At full load (500 mW output), the power dissipation can be significant. Ensure adequate copper area on the PCB for heat sinking, especially in high-temperature environments. The operating temperature range is -40°C to +105°C, so verify thermal performance in your application.
Información de cumplimiento
RoHS compliant per distributor listings. No AEC-Q100 qualification indicated for this part.