ADUM141D1BRWZ - Quad Digital Isolator 150Mbps | Analog Devices
N.º de pieza: ADUM141D1BRWZ ✓ Activo| Cant. | Precio unitario | Total |
|---|---|---|
| 1 | $4.5 | $4,50 |
| 10 | $4.05 | $40,50 |
| 100 | $3.6 | $360,00 |
| 500 | $3.24 | $1.620,00 |
| 1.000 | $2.88 | $2.880,00 |
ADUM141D1BRWZ Descripción general
A digital isolator is a component that transfers digital signals between two isolated domains, providing galvanic isolation to protect against voltage transients, ground loops, and noise. It replaces optocouplers in many applications, offering higher speed, lower power consumption, and better reliability. Digital isolators are essential in industrial automation, medical equipment, and communication systems where safety and signal integrity are critical.
Key features of the ADUM141D1BRWZ include a 3:1 channel configuration (three forward channels and one reverse channel), a wide supply voltage range of 1.7V to 5.5V on both sides, and a fail-safe output state that defaults to high when the input power is absent. The device supports data rates up to 150 Mbps, making it suitable for high-speed serial interfaces such as SPI and UART. The CMTI of 75 kV/µs ensures reliable operation in noisy environments, preventing erroneous data transmission during fast voltage transients.
The ADUM141D1BRWZ uses iCoupler technology, which combines high-speed CMOS and monolithic air-core transformer technology. This architecture provides superior performance compared to optocouplers, including lower power consumption, higher data rates, and better timing accuracy. The device also features a default output state that can be configured to high or low, allowing designers to choose the safe state for their application.
Typical applications include industrial fieldbus communication, isolated SPI interfaces, motor control, and medical monitoring equipment. The wide supply voltage range and high data rate make it versatile for various isolation requirements. The device is also pin-compatible with other ADuM14x series isolators, enabling easy upgrades or downgrades in channel configuration.
When designing with the ADUM141D1BRWZ, ensure proper PCB layout with adequate creepage and clearance distances for the isolation barrier. Place decoupling capacitors close to the VDD1 and VDD2 pins to minimize noise. The device is RoHS compliant and suitable for surface-mount assembly.
Alternativas directas para ADUM141D1BRWZ — 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 ADUM141D1BRWZ (mismo factor de forma y huella) — difiere en Supply Voltage Range, Data Rate, Isolation Voltage, Operating Temperature Range, Common-Mode Transient Immunity (CMTI).
Herramienta de comparación rápida — seleccione piezas alternativas para compararlas lado a lado:
ADUM141D1BRWZ-RL
✅ Sustitución directa📋 Alternativa de referencia (no en el catálogo)
ADUM140D1BRWZ
✅ Sustitución directa ⚠️ Especificaciones sin verificar📋 Alternativa de referencia (no en el catálogo)
ADUM141D1BRWZ-RL
✅ Sustitución directa📋 Alternativa de referencia (no en el catálogo)
ISO7741DW
✅ Sustitución directa ⚠️ Especificaciones sin verificar📋 Alternativa de referencia (no en el catálogo)
SI8641BB-B-IS1
✅ Sustitución directa ⚠️ Especificaciones sin verificar📋 Alternativa de referencia (no en el catálogo)
ADUM141D1BRWZ Especificaciones
| Number of Channels | 4 |
| Channel Configuration | 3/1 (3 forward, 1 reverse) |
| Isolation Voltage | 3750 Vrms |
| Velocidad de datos | 150 Mbps |
| Common-Mode Transient Immunity (CMTI) | 75 kV/µs |
| Supply Voltage (VDD1/VDD2) | 1.7 V to 5.5 V |
| Tipo de salida | Push-Pull |
| Fail-Safe Output State | High (default) |
| Encapsulado | 16-SOIC (0.295", 7.50mm Width) |
| Rango de temperatura de funcionamiento | -40°C to +125°C |
| Estado RoHS | Compliant |
| Tipo de montaje | Surface Mount |
| Technology | iCoupler |
Configuración de pines de ADUM141D1BRWZ
| Pin 1 | VDD1 — Input side supply voltage |
| Pin 2 | GND1 — Input side ground |
| Pin 3 | VIA — Input channel A |
| Pin 4 | VIB — Input channel B |
| Pin 5 | VIC — Input channel C |
| Pin 6 | VOD — Output channel D (reverse) |
| Pin 7 | GND1 — Input side ground |
| Pin 8 | NC — No connect |
| Pin 9 | NC — No connect |
| Pin 10 | GND2 — Output side ground |
| Pin 11 | VID — Input channel D (reverse) |
| Pin 12 | VOA — Output channel A |
| Pin 13 | VOB — Output channel B |
| Pin 14 | VOC — Output channel C |
| Pin 15 | GND2 — Output side ground |
| Pin 16 | VDD2 — Output side supply voltage |
Aplicaciones típicas
ADUM141D1BRWZ es adecuado para 6 aplicacións: Industrial Fieldbus Communication, Isolated SPI Interface, Motor Control, Medical Monitoring Equipment, Communication Systems, Power Supply Control.
Industrial Fieldbus Communication
The ADUM141D1BRWZ is ideal for isolating fieldbus interfaces like RS-485, CAN, and PROFIBUS. Its 150 Mbps data rate supports high-speed communication, while the 3.75 kV isolation protects against ground loops and voltage transients. The 3/1 channel configuration is perfect for full-duplex communication, with one reverse channel for the receive path. The high CMTI of 75 kV/µs ensures reliable data transmission in noisy industrial environments, preventing errors during motor switching or other transients. The wide supply voltage range (1.7V to 5.5V) allows direct interface with various logic levels, simplifying design.
Recomendado
Isolated SPI Interface
The ADUM141D1BRWZ is well-suited for isolating SPI buses between microcontrollers and peripheral devices. The 3/1 channel configuration provides three forward channels for MOSI, SCLK, and CS, and one reverse channel for MISO, enabling full-duplex SPI communication. The 150 Mbps data rate easily handles SPI clock speeds up to 50 MHz. The low propagation delay and high CMTI ensure accurate data transfer even in electrically noisy environments. The wide supply voltage range allows level shifting between different logic domains, making it ideal for mixed-voltage systems.
Recomendado
Motor Control
In motor control applications, the ADUM141D1BRWZ provides galvanic isolation between the microcontroller and the gate driver circuits. The high CMTI of 75 kV/µs is critical for withstanding the fast voltage transients generated by PWM switching. The 3/1 channel configuration can be used to isolate three-phase gate signals and a feedback signal. The wide supply voltage range (1.7V to 5.5V) allows direct connection to both 3.3V and 5V logic. The robust isolation (3.75 kV) ensures safety in high-voltage motor drives, protecting the low-voltage control circuitry.
Recomendado
Medical Monitoring Equipment
The ADUM141D1BRWZ is suitable for medical devices requiring patient isolation, such as ECG and EEG monitors. The 3.75 kV isolation provides a safety barrier between the patient and the monitoring electronics, meeting stringent medical safety standards. The high data rate (150 Mbps) supports high-resolution data acquisition, while the low power consumption (1.5 mA per channel at 5V) is ideal for battery-powered devices. The fail-safe output state ensures a defined output during power-up, enhancing patient safety. The wide temperature range (-40°C to +125°C) allows use in various clinical environments.
Recomendado
Communication Systems
The ADUM141D1BRWZ is used in communication systems to isolate digital interfaces between line cards and control planes. Its 150 Mbps data rate supports high-speed serial links, while the 3.75 kV isolation protects against lightning surges and ground potential differences. The 3/1 channel configuration is ideal for isolating full-duplex UART or SPI links. The high CMTI ensures reliable operation in environments with high electromagnetic interference. The wide supply voltage range allows interfacing with various logic families, making it a versatile choice for telecom and networking equipment.
Recomendado
Power Supply Control
The ADUM141D1BRWZ is used in isolated power supply designs to transmit PWM control signals across the isolation barrier. The high CMTI (75 kV/µs) ensures stable operation in the presence of switching noise. The 3/1 channel configuration can be used for primary-side control and secondary-side feedback. The wide supply voltage range (1.7V to 5.5V) allows direct connection to both the primary and secondary side controllers. The 3.75 kV isolation provides safety in high-voltage power supplies, protecting the low-voltage control circuitry from transients.
Recomendado
Resumen de productos recomendados
Datos de referencia de ingeniería para ADUM141D1BRWZ — comparación, orientación de diseño e información de cumplimiento.
Guía de selección
Comparación con alternativas
| Parámetro | Este producto | ADUM141D1BRWZ-RL | ADUM140D1BRWZ | ISO7741DW | SI8641BB-B-IS1 |
|---|---|---|---|---|---|
| Package | 16-SOIC (0.295", 7.50mm Width) | 16-SOIC (0.295", 7.50mm Width) - same | 16-SOIC (0.295", 7.50mm Width) - same | 16-SOIC (0.295", 7.50mm Width) - same | 16-SOIC (0.295", 7.50mm Width) - same |
| Brand | Analog Devices | Analog Devices | Analog Devices | Texas Instruments | Skyworks Solutions |
| Channel Configuration | 3/1 | 3/1 | 4/0 | 4/0 | 4/0 |
| Isolation Voltage | 3750 Vrms | 3750 Vrms | 3750 Vrms | 5000 Vrms | 2500 Vrms |
| Data Rate | 150 Mbps | 150 Mbps | 150 Mbps | 100 Mbps | 150 Mbps |
| CMTI | 75 kV/µs | 75 kV/µs | 75 kV/µs | 100 kV/µs | 50 kV/µs |
| Supply Voltage Range | 1.7V to 5.5V | 1.7V to 5.5V | 1.7V to 5.5V | 2.25V to 5.5V | 2.5V to 5.5V |
| Fail-Safe Output State | High | High | High | High or Low (selectable) | High or Low (selectable) |
Diferenciadores clave
- 3/1 channel configuration (frente a ADUM140D1BRWZ)
- Higher data rate than ISO7741DW (frente a ISO7741DW)
- Wider supply voltage range (frente a SI8641BB-B-IS1)
Notas de diseño
For optimal isolation performance, maintain a minimum creepage distance of 8 mm between the input and output sides on the PCB. Use a ground plane under the isolator to reduce noise, but ensure the plane is split to maintain isolation. Place decoupling capacitors (0.1 µF) close to VDD1 and VDD2 pins to minimize supply noise.
Route the isolation barrier traces with at least 0.5 mm spacing to prevent arcing. Keep high-speed signal traces short and direct to minimize parasitic capacitance. Avoid routing digital signals parallel to the isolation barrier to reduce coupling.
Do not exceed the absolute maximum ratings for VDD1 and VDD2 (7V). Ensure both supplies are powered before applying input signals to avoid undefined output states. The fail-safe output defaults to high, but verify this matches your system's safe state requirement.
Información de cumplimiento
RoHS compliant per Analog Devices product page. No AEC-Q100 qualification indicated.