ADUM3152BRSZ-RL7 - 7-Ch SPI Isolator 3750Vrms | Analog Devices
N.º de pieza: ADUM3152BRSZ-RL7 ✓ Activo| Cant. | Precio unitario | Total |
|---|---|---|
| 1 | $6.5 | $6,50 |
| 10 | $5.85 | $58,50 |
| 100 | $5.2 | $520,00 |
| 500 | $4.68 | $2.340,00 |
| 1.000 | $4.16 | $4.160,00 |
ADUM3152BRSZ-RL7 Descripción general
A digital isolator is a component that provides galvanic isolation between two circuits while allowing digital signals to pass across the isolation barrier. It is essential in applications where ground potential differences, noise, or safety requirements demand separation between the controller and the isolated side. The ADuM3152 uses Analog Devices' iCoupler chip-scale transformer technology, which offers superior performance compared to optocouplers in terms of speed, power consumption, and reliability.
Key features include support for SPI clock rates up to 17 MHz, low propagation delay of 14 ns on the CLK, MO/SI, MI/SO, and SS channels, and a 25 kV/µs CMTI for robust operation in noisy industrial environments. The device also features 1/2 auxiliary channel directionality, allowing flexible configuration for additional signals. The 20-pin SSOP package is compact and suitable for space-constrained designs.
The ADuM3152 is based on iCoupler technology, which uses micro-transformers to transfer data across the isolation barrier. This architecture provides high-speed operation with low power consumption and excellent timing accuracy. The device is designed to meet the stringent requirements of industrial automation, motor control, and isolated SPI communication in power systems.
Typical applications include isolated SPI interfaces in industrial PLCs, motor drives, solar inverters, and medical equipment. The high CMTI and wide temperature range make it suitable for automotive and harsh industrial environments. The device is also used in isolated sensor interfaces and data acquisition systems where ground loops must be eliminated.
When designing with the ADuM3152, ensure proper PCB layout to minimize coupling across the isolation barrier. Follow the manufacturer's guidelines for creepage and clearance distances to maintain the rated isolation voltage. The device requires a 5V supply on both sides (VDD1 and VDD2) and supports 3.3V logic levels with appropriate supply connections.
Alternativas directas para ADUM3152BRSZ-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 ADUM3152BRSZ-RL7 (mismo factor de forma y huella) — difiere en Technology, Number of Channels, Package, Propagation Delay, Data Rate.
Herramienta de comparación rápida — seleccione piezas alternativas para compararlas lado a lado:
ADUM3152BRSZ
✅ Sustitución directa✓ En stock
$5.81 / unidad
Ver hoja de datos →ADUM3152ARSZ-RL7
✅ Sustitución directa📋 Alternativa de referencia (no en el catálogo)
ADUM3153BRSZ-RL7
✅ Sustitución directa ⚠️ Especificaciones sin verificar✓ En stock
$3.1 / unidad
Ver hoja de datos →ADUM3151BRSZ-RL7
✅ Sustitución directa ⚠️ Especificaciones sin verificar✓ En stock
$7.45 / unidad
Ver hoja de datos →ADUM3152BRSZ-RL7
✅ Sustitución directa✓ En stock
$4.16 / unidad
Ver hoja de datos →ADUM3152BRSZ-RL7 Especificaciones
| Isolation Voltage | 3750 Vrms |
| Number of Channels | 7 |
| Velocidad de datos | 34 Mbps |
| CMTI | 25 kV/µs |
| Propagation Delay | 14 ns |
| SPI Clock Rate | 17 MHz |
| Supply Voltage (VDD1/VDD2) | 4.5 V to 5.5 V |
| Temperatura de funcionamiento | -40°C to +125°C |
| Encapsulado | 20-SSOP (0.209", 5.30mm Width) |
| Tipo de montaje | Surface Mount |
| Technology | iCoupler |
| Number of Terminals | 20 |
| Temperature Grade | Automotive |
| Estado RoHS | Compliant |
| Auxiliary Channels | 1/2 directionality |
Configuración de pines de ADUM3152BRSZ-RL7
| Pin 1 | VDD1 — Primary supply voltage (4.5V to 5.5V) |
| Pin 2 | GND1 — Primary ground |
| Pin 3 | CLK — SPI clock input |
| Pin 4 | MO/SI — Master out, slave in data |
| Pin 5 | MI/SO — Master in, slave out data |
| Pin 6 | SS — Slave select input |
| Pin 7 | AUX1 — Auxiliary channel 1 |
| Pin 8 | AUX2 — Auxiliary channel 2 |
| Pin 9 | GND2 — Secondary ground |
| Pin 10 | VDD2 — Secondary supply voltage (4.5V to 5.5V) |
| Pin 11 | VDD2 — Secondary supply voltage |
| Pin 12 | GND2 — Secondary ground |
| Pin 13 | AUX3 — Auxiliary channel 3 |
| Pin 14 | AUX4 — Auxiliary channel 4 |
| Pin 15 | SS — Slave select output |
| Pin 16 | MI/SO — Master in, slave out data |
| Pin 17 | MO/SI — Master out, slave in data |
| Pin 18 | CLK — SPI clock output |
| Pin 19 | GND1 — Primary ground |
| Pin 20 | VDD1 — Primary supply voltage |
Aplicaciones típicas
ADUM3152BRSZ-RL7 es adecuado para 6 aplicacións: Industrial PLC Isolated SPI Interface, Motor Drive Isolated SPI, Solar Inverter Isolated Communication, Medical Equipment Isolated Data Acquisition, Automotive Battery Management System (BMS), Isolated Sensor Interface in Data Acquisition Systems.
Industrial PLC Isolated SPI Interface
The ADUM3152BRSZ-RL7 provides galvanic isolation for SPI communication between a PLC's main controller and remote I/O modules. Its 3750 Vrms isolation and 25 kV/µs CMTI ensure reliable operation in industrial environments with high electrical noise. The 34 Mbps data rate supports fast data transfer for real-time control, while the 14 ns propagation delay minimizes latency. The device operates over -40°C to +125°C, suitable for harsh factory floors. Its 7-channel configuration allows isolation of SPI signals plus auxiliary control lines, simplifying system design.
Recomendado
Motor Drive Isolated SPI
In motor drives, the ADUM3152BRSZ-RL7 isolates the SPI interface between the microcontroller and gate driver or encoder. Its high CMTI of 25 kV/µs prevents false triggering from fast-switching power stages. The 34 Mbps data rate allows high-speed communication for precise motor control. The device's 3750 Vrms isolation protects low-voltage control circuitry from high-voltage transients. The wide temperature range and automotive grade make it suitable for industrial and automotive motor drives. The 7-channel configuration supports SPI plus auxiliary signals like fault and reset lines.
Recomendado
Solar Inverter Isolated Communication
The ADUM3152BRSZ-RL7 isolates SPI communication between the solar inverter's main controller and the MPPT or monitoring ICs. Its 3750 Vrms isolation ensures safety and prevents ground loops in high-voltage systems. The 34 Mbps data rate supports fast data exchange for maximum power point tracking. The device's high CMTI of 25 kV/µs ensures reliable operation in the presence of switching noise from the inverter's power stage. The wide operating temperature range (-40°C to +125°C) is suitable for outdoor installations. The 7-channel configuration allows isolation of SPI plus auxiliary signals like temperature and voltage monitoring.
Recomendado
Medical Equipment Isolated Data Acquisition
In medical devices, the ADUM3152BRSZ-RL7 provides isolation for SPI communication between the main processor and isolated sensor front-ends. Its 3750 Vrms isolation meets safety standards for patient isolation. The 34 Mbps data rate supports high-speed data acquisition from imaging sensors or vital sign monitors. The device's low propagation delay (14 ns) ensures accurate timing for synchronized measurements. The 7-channel configuration allows isolation of SPI plus auxiliary control signals. The device's reliability and wide temperature range make it suitable for medical equipment that must operate continuously.
Recomendado
Automotive Battery Management System (BMS)
The ADUM3152BRSZ-RL7 isolates SPI communication between the BMS controller and battery monitoring ICs. Its automotive temperature grade (-40°C to +125°C) and 3750 Vrms isolation ensure reliable operation in electric vehicles. The 34 Mbps data rate supports fast communication for real-time battery status monitoring. The high CMTI of 25 kV/µs prevents interference from high-voltage switching in the battery pack. The 7-channel configuration allows isolation of SPI plus auxiliary signals like cell balancing control. The device's robustness meets automotive quality standards.
Recomendado
Isolated Sensor Interface in Data Acquisition Systems
The ADUM3152BRSZ-RL7 isolates SPI communication between a data acquisition system's main controller and remote sensors. Its 3750 Vrms isolation eliminates ground loops and reduces noise in sensitive measurements. The 34 Mbps data rate supports high-speed sampling from multiple sensors. The device's 14 ns propagation delay ensures synchronized data acquisition. The 7-channel configuration allows isolation of SPI plus auxiliary signals like trigger and status lines. The wide temperature range and high CMTI make it suitable for industrial and laboratory environments.
Recomendado
Resumen de productos recomendados
Datos de referencia de ingeniería para ADUM3152BRSZ-RL7 — comparación, orientación de diseño e información de cumplimiento.
Guía de selección
Comparación con alternativas
| Parámetro | Este producto | ADUM3152BRSZ | ADUM3152ARSZ-RL7 | ADUM3153BRSZ-RL7 |
|---|---|---|---|---|
| Package | 20-SSOP | 20-SSOP | 20-SSOP | 20-SSOP |
| Brand | Analog Devices | Analog Devices | Analog Devices | Analog Devices |
| Data Rate | 34 Mbps | 34 Mbps | 2 Mbps | 34 Mbps |
| Isolation Voltage | 3750 Vrms | 3750 Vrms | 3750 Vrms | 3750 Vrms |
| CMTI | 25 kV/µs | 25 kV/µs | 25 kV/µs | 25 kV/µs |
| Propagation Delay | 14 ns | 14 ns | 14 ns | 14 ns |
| Auxiliary Channel Directionality | 1/2 | 1/2 | 1/2 | 2/1 |
| Packaging | Tape & Reel | Tube | Tape & Reel | Tape & Reel |
Diferenciadores clave
- Higher data rate than ADUM3152ARSZ-RL7 (frente a ADUM3152ARSZ-RL7)
- Flexible auxiliary channel directionality (frente a ADUM3153BRSZ-RL7)
- Tape and reel packaging for automated assembly (frente a ADUM3152BRSZ)
Notas de diseño
For optimal isolation performance, maintain a minimum creepage distance of 8 mm between the primary and secondary sides on the PCB. Use a ground plane on each side, but do not connect them across the isolation barrier. Place the ADUM3152BRSZ-RL7 close to the SPI connector to minimize trace length and reduce EMI.
Decouple VDD1 and VDD2 with 0.1 µF ceramic capacitors placed as close as possible to the pins. Additionally, use a 10 µF bulk capacitor on each supply rail to handle transient currents. Ensure the supply voltage stays within 4.5V to 5.5V to maintain specified performance.
Route the SPI signals (CLK, MO/SI, MI/SO, SS) with matched trace lengths to minimize skew. Avoid routing high-speed signals near the isolation barrier to prevent coupling. Use differential signaling if possible for improved noise immunity. Follow the layout guidelines in the ADuM315x datasheet for best results.
Información de cumplimiento
RoHS compliant per Analog Devices product page. Automotive temperature grade, but not explicitly AEC-Q100 qualified.