ADUM3150BRSZ-RL7 - 6-Ch SPI Digital Isolator | Analog Devices
MPN: ADUM3150BRSZ-RL7 ✓ Hoạt độngADUM3150BRSZ-RL7 Tóm tắt
A digital isolator is a component that provides electrical isolation between two circuits while allowing digital signals to pass through. It is essential in applications where ground potential differences, noise, or safety requirements demand isolation, such as in industrial automation, motor control, and medical equipment. Digital isolators replace optocouplers in many designs due to their higher speed, better reliability, and lower power consumption. The ADUM3150 is specifically designed for SPI buses, which are widely used in embedded systems to connect microcontrollers to sensors, ADCs, and other peripherals.
Key features of the ADUM3150BRSZ-RL7 include 6 isolation channels, a data rate of 40 Mbps (as listed by DigiKey), and a common-mode transient immunity (CMTI) of 25 kV/µs. The device operates over a wide supply voltage range and offers low propagation delay and jitter, making it suitable for high-speed SPI communication. The integrated delay clock feature allows for precise timing control, which is critical in multi-slave SPI systems.
Technically, the ADUM3150 uses iCoupler technology, which employs micro-transformers to transmit data across the isolation barrier. This approach provides superior performance compared to optocouplers, including higher data rates, lower power consumption, and better timing accuracy. The device also features a refresh mechanism to maintain output states in the absence of input transitions, ensuring reliable operation in static conditions.
Typical applications include isolated SPI interfaces in industrial PLCs, motor drives, solar inverters, and medical monitoring equipment. The high CMTI and isolation rating make it ideal for noisy industrial environments where voltage transients are common. The low propagation delay ensures minimal latency in real-time control loops.
When designing with the ADUM3150, it is important to ensure proper PCB layout to minimize coupling between the isolated sides. The datasheet recommends keeping the isolation barrier clear of copper and using appropriate creepage distances. Additionally, decoupling capacitors should be placed close to the power pins to maintain stable operation.
Bộ thay thế dễ dàng lắp đặt cho ADUM3150BRSZ-RL7 — cùng gói, chân-to-chân tương thích. Các bộ phận yêu cầu hàn PCB bị loại trừ.
Các biến thể trong loạt này
Các mẫu cùng loạt có thể lắp đặt dễ dàng tương thích với ADUM3150BRSZ-RL7 (cùng hình factor và footprint) — khác nhau ở Technology, Data Rate, Number of Channels.
ADUM3150BRSZ
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →ADUM3151BRSZ-RL7
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →ADUM3152BRSZ-RL7
✅ Drop-In ⚠️ Thông số chưa được xác minhLiên hệ để biết giá
Xem tài liệu →ADUM3153BRSZ-RL7
✅ Drop-In ⚠️ Thông số chưa được xác minhLiên hệ để biết giá
Xem tài liệu →ADUM3150BRSZ-RL7 Thông số kỹ thuật
| Number of Channels | 6 |
| Isolation Voltage | 3750 Vrms |
| Tốc độ dữ liệu | 40 Mbps |
| CMTI | 25 kV/µs |
| Propagation Delay | 14 ns |
| Jitter | 1 ns |
| SPI Clock Rate | 17 MHz |
| Hộp | 20-SSOP (0.209", 5.30mm Width) |
| Kiểu lắp đặt | Surface Mount |
| Technology | iCoupler |
| Trạng thái RoHS | Compliant |
| REACH Status | Compliant |
Cấu hình chân ADUM3150BRSZ-RL7
| Chân 1 | VDD1 — Primary side supply voltage |
| Chân 2 | GND1 — Primary side ground |
| Chân 3 | SCLK — Serial clock input |
| Chân 4 | MOSI — Master out slave in |
| Chân 5 | MISO — Master in slave out |
| Chân 6 | SS — Slave select |
| Chân 7 | GND1 — Primary side ground |
| Chân 8 | VDD1 — Primary side supply voltage |
| Chân 9 | VDD2 — Secondary side supply voltage |
| Chân 10 | GND2 — Secondary side ground |
| Chân 11 | GND2 — Secondary side ground |
| Chân 12 | VDD2 — Secondary side supply voltage |
| Chân 13 | NC — No connect |
| Chân 14 | NC — No connect |
| Chân 15 | NC — No connect |
| Chân 16 | NC — No connect |
| Chân 17 | NC — No connect |
| Chân 18 | NC — No connect |
| Chân 19 | NC — No connect |
| Chân 20 | NC — No connect |
Ứng dụng tiêu biểu
ADUM3150BRSZ-RL7 phù hợp cho 6 Áp dụngs: Industrial PLCs, Motor Drives, Solar Inverters, Medical Monitoring Equipment, Test and Measurement, Automotive Battery Management Systems.
Industrial PLCs
The ADUM3150BRSZ-RL7 provides isolated SPI communication between the PLC's main controller and remote I/O modules. Its 3750 Vrms isolation and 25 kV/µs CMTI protect against voltage transients and ground loops in industrial environments. The 17 MHz SPI clock rate ensures fast data transfer for real-time control, while the low propagation delay (14 ns) minimizes latency in critical feedback loops. The device's robust isolation helps meet safety standards such as IEC 61131-2.
Được đề xuất
Motor Drives
In motor drives, the ADUM3150BRSZ-RL7 isolates the SPI interface between the microcontroller and gate driver or encoder. The high CMTI (25 kV/µs) ensures reliable operation in the presence of fast-switching voltage transients from the power stage. The 40 Mbps data rate supports high-resolution encoder feedback, and the 3750 Vrms isolation protects the low-voltage control circuitry from high-voltage bus transients. The device's low jitter (1 ns) ensures accurate timing for PWM synchronization.
Được đề xuất
Solar Inverters
The ADUM3150BRSZ-RL7 is used in solar inverters to isolate the SPI communication between the MPPT controller and the inverter's power stage. Its 3750 Vrms isolation provides safety isolation between the DC input and AC output, meeting IEC 62109 requirements. The high data rate (40 Mbps) enables fast communication for maximum power point tracking algorithms, while the low propagation delay (14 ns) ensures responsive control. The device's wide operating temperature range makes it suitable for outdoor installations.
Được đề xuất
Medical Monitoring Equipment
In medical monitoring equipment, the ADUM3150BRSZ-RL7 provides isolation for SPI communication between the sensor front-end and the processing unit. The 3750 Vrms isolation ensures patient safety by preventing leakage currents, meeting IEC 60601-1 standards. The low propagation delay (14 ns) and jitter (1 ns) are critical for accurate real-time monitoring of vital signs. The device's small SSOP package saves board space in compact medical devices.
Được đề xuất
Test and Measurement
The ADUM3150BRSZ-RL7 is used in test and measurement equipment to isolate SPI communication between the main processor and high-voltage measurement circuits. Its 3750 Vrms isolation protects sensitive measurement electronics from high-voltage transients, while the 40 Mbps data rate supports high-speed data acquisition. The low propagation delay (14 ns) ensures accurate timing for synchronized measurements. The device's high CMTI (25 kV/µs) makes it suitable for environments with high electromagnetic interference.
Được đề xuất
Automotive Battery Management Systems
In automotive BMS, the ADUM3150BRSZ-RL7 isolates the SPI communication between the battery monitoring ICs and the main controller. The 3750 Vrms isolation provides safety isolation between the high-voltage battery pack and the low-voltage control electronics, meeting AEC-Q100 requirements. The high data rate (40 Mbps) enables fast cell voltage and temperature monitoring, while the low propagation delay (14 ns) ensures timely response to overcurrent or overvoltage conditions. The device's robust CMTI (25 kV/µs) ensures reliable operation in the noisy automotive environment.
Được đề xuất
Tóm tắt các sản phẩm được đề xuất
Dữ liệu tham khảo kỹ thuật cho ADUM3150BRSZ-RL7 — so sánh, hướng dẫn thiết kế và thông tin tuân thủ.
Hướng dẫn chọn lựa
So sánh với các sản phẩm thay thế
| Tham số | Sản phẩm này | ADUM3150BRSZ | ADUM3150ARSZ | ADUM3151BRSZ-RL7 | ADUM3152BRSZ-RL7 | ADUM3153BRSZ-RL7 | ISO7741DW |
|---|---|---|---|---|---|---|---|
| Package | 20-SSOP | 20-SSOP | 16-SOIC | 20-SSOP | 20-SSOP | 20-SSOP | 16-SOIC |
| Brand | Analog Devices | Analog Devices | Analog Devices | Analog Devices | Analog Devices | Analog Devices | Texas Instruments |
| Isolation Voltage | 3750 Vrms | 3750 Vrms | 2500 Vrms | 3750 Vrms | 3750 Vrms | 3750 Vrms | 5000 Vrms |
| Data Rate | 40 Mbps | 40 Mbps | 40 Mbps | 40 Mbps | 40 Mbps | 40 Mbps | 100 Mbps |
| CMTI | 25 kV/µs | 25 kV/µs | 25 kV/µs | 25 kV/µs | 25 kV/µs | 25 kV/µs | 100 kV/µs |
| Propagation Delay | 14 ns | 14 ns | 14 ns | 14 ns | 14 ns | 14 ns | 10.7 ns |
| Number of Channels | 6 | 6 | 6 | 6 | 6 | 6 | 4 |
| SPI Optimized | Yes | Yes | Yes | Yes | Yes | Yes | No |
Bảo phân biệt quan trọng
- SPI-optimized isolation with delay clock (vsISO7741DW)
- Higher isolation voltage than ADUM3150ARSZ (vsADUM3150ARSZ)
- Tape and reel packaging for automated assembly (vsADUM3150BRSZ)
Ghi chú thiết kế
Ensure proper PCB layout to maintain isolation barrier integrity. Keep the isolation barrier free of copper traces and components to avoid reducing creepage and clearance distances. Place decoupling capacitors (0.1 µF) close to VDD1 and VDD2 pins to minimize noise. Refer to the ADuM3150 datasheet for recommended layout guidelines.
The ADUM3150BRSZ-RL7 requires a stable power supply on both sides of the isolation barrier. Use low-ESR ceramic capacitors (e.g., 0.1 µF) on VDD1 and VDD2 to filter high-frequency noise. Ensure the supply voltage is within the recommended operating range to avoid malfunction. The device's power consumption is low, but verify the total current draw to size the supply appropriately.
Do not exceed the absolute maximum ratings for supply voltage or isolation voltage. Ensure that the SPI signals are properly terminated to avoid reflections at high data rates. Also, note that the ADUM3150BRSZ-RL7 has a refresh mechanism to maintain output states, but it is not recommended to leave inputs floating; tie unused inputs to a defined logic level.
Thông tin tuân thủ
RoHS and REACH compliant per Analog Devices product page. Not AEC-Q100 qualified.