ADUM3152BRSZ-RL7 - 7-Ch SPI Isolator 3750Vrms | Analog Devices
MPN: ADUM3152BRSZ-RL7 ✓ Hoạt độngADUM3152BRSZ-RL7 Tóm tắt
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.
Bộ thay thế dễ dàng lắp đặt cho ADUM3152BRSZ-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 ADUM3152BRSZ-RL7 (cùng hình factor và footprint) — khác nhau ở Technology, Number of Channels, Package, Propagation Delay, Data Rate.
ADUM3152BRSZ
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →ADUM3152ARSZ-RL7
✅ Drop-In📋 Tham chiếu thay thế (không có trong danh mục)
ADUM3153BRSZ-RL7
✅ Drop-In ⚠️ Thông số chưa được xác minhLiên hệ để biết giá
Xem tài liệu →ADUM3151BRSZ-RL7
✅ Drop-In ⚠️ Thông số chưa được xác minhLiên hệ để biết giá
Xem tài liệu →ADUM3152BRSZ-RL7
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →ADUM3152BRSZ-RL7 Thông số kỹ thuật
| Isolation Voltage | 3750 Vrms |
| Number of Channels | 7 |
| Tốc độ dữ liệu | 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 |
| Nhiệt độ hoạt động | -40°C to +125°C |
| Hộp | 20-SSOP (0.209", 5.30mm Width) |
| Kiểu lắp đặt | Surface Mount |
| Technology | iCoupler |
| Number of Terminals | 20 |
| Temperature Grade | Automotive |
| Trạng thái RoHS | Compliant |
| Auxiliary Channels | 1/2 directionality |
Cấu hình chân ADUM3152BRSZ-RL7
| Chân 1 | VDD1 — Primary supply voltage (4.5V to 5.5V) |
| Chân 2 | GND1 — Primary ground |
| Chân 3 | CLK — SPI clock input |
| Chân 4 | MO/SI — Master out, slave in data |
| Chân 5 | MI/SO — Master in, slave out data |
| Chân 6 | SS — Slave select input |
| Chân 7 | AUX1 — Auxiliary channel 1 |
| Chân 8 | AUX2 — Auxiliary channel 2 |
| Chân 9 | GND2 — Secondary ground |
| Chân 10 | VDD2 — Secondary supply voltage (4.5V to 5.5V) |
| Chân 11 | VDD2 — Secondary supply voltage |
| Chân 12 | GND2 — Secondary ground |
| Chân 13 | AUX3 — Auxiliary channel 3 |
| Chân 14 | AUX4 — Auxiliary channel 4 |
| Chân 15 | SS — Slave select output |
| Chân 16 | MI/SO — Master in, slave out data |
| Chân 17 | MO/SI — Master out, slave in data |
| Chân 18 | CLK — SPI clock output |
| Chân 19 | GND1 — Primary ground |
| Chân 20 | VDD1 — Primary supply voltage |
Ứng dụng tiêu biểu
ADUM3152BRSZ-RL7 phù hợp cho 6 Áp dụngs: 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.
Được đề xuất
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.
Được đề xuất
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.
Được đề xuất
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.
Được đề xuất
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.
Được đề xuất
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.
Được đề xuất
Tóm tắt các sản phẩm được đề xuất
Dữ liệu tham khảo kỹ thuật cho ADUM3152BRSZ-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 | 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 |
Bảo phân biệt quan trọng
- Higher data rate than ADUM3152ARSZ-RL7 (vsADUM3152ARSZ-RL7)
- Flexible auxiliary channel directionality (vsADUM3153BRSZ-RL7)
- Tape and reel packaging for automated assembly (vsADUM3152BRSZ)
Ghi chú thiết kế
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.
Thông tin tuân thủ
RoHS compliant per Analog Devices product page. Automotive temperature grade, but not explicitly AEC-Q100 qualified.