ADUM1310ARWZ - 3-Ch Digital Isolator 3750Vrms | Analog Devices
MPN: ADUM1310ARWZ ✓ Hoạt độngADUM1310ARWZ Tóm tắt
Digital isolators are components that provide galvanic isolation between two circuits while allowing digital signals to pass across the isolation barrier. They are essential in applications where ground potential differences, noise, or safety requirements demand separation of high-voltage and low-voltage domains. The ADUM1310ARWZ belongs to the category of digital isolators, which are part of the broader interface IC family, and are used in industrial automation, motor control, and isolated communication interfaces.
Key features include low power operation: at 5 V supply, it consumes 1.7 mA per channel maximum at 0-2 Mbps and 4.0 mA per channel at 2-10 Mbps; at 3 V, it consumes 1.0 mA per channel at 0-2 Mbps and 2.1 mA at 2-10 Mbps. The device supports a supply voltage range of 2.7 V to 5.5 V on both sides, making it versatile for mixed-voltage systems. It also features a patented refresh mechanism that ensures DC correctness in the absence of input logic transitions and during power-up/power-down conditions, a significant advantage over optocouplers.
Technically, the ADUM1310ARWZ uses iCoupler technology with monolithic air core transformers to transmit data across the isolation barrier. This approach provides precise timing, low propagation delay, and high reliability. The device has a propagation delay of approximately 100 ns (as per Jotrin data), and it supports a default output state selection via a control pin, allowing designers to predetermine the output state when the input power (VDD1) is absent.
Typical applications include industrial fieldbus isolation, isolated SPI/UART interfaces, motor drive signal isolation, and isolated power supply feedback. The high CMTI and low power consumption make it suitable for harsh industrial environments where noise immunity is critical.
When designing with this device, ensure proper decoupling capacitors on both supply pins (VDD1 and VDD2) and follow the layout guidelines in the datasheet to maintain isolation performance. The default output state pin should be configured according to system safety requirements.
Bộ thay thế dễ dàng lắp đặt cho ADUM1310ARWZ — 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 ADUM1310ARWZ (cùng hình factor và footprint) — khác nhau ở Operating Temperature Range, Technology, Number of Channels, Isolation Voltage, Package.
ADUM1310ARWZ-RL
✅ Drop-In📋 Tham chiếu thay thế (không có trong danh mục)
ADUM1310BRWZ
✅ Drop-In📋 Tham chiếu thay thế (không có trong danh mục)
ADUM1311ARWZ
✅ Drop-In ⚠️ Thông số chưa được xác minhLiên hệ để biết giá
Xem tài liệu →ADUM1300ARWZ
✅ Drop-In ⚠️ Thông số chưa được xác minhLiên hệ để biết giá
Xem tài liệu →ISO7731DWR
✅ Drop-In ⚠️ Thông số chưa được xác minh📋 Tham chiếu thay thế (không có trong danh mục)
Si8631BB-B-IS1
✅ Drop-In ⚠️ Thông số chưa được xác minh📋 Tham chiếu thay thế (không có trong danh mục)
ADUM1310ARWZ Thông số kỹ thuật
| Number of Channels | 3 |
| Isolation Voltage | 3750 Vrms |
| Tốc độ dữ liệu | 1 Mbps |
| Common-Mode Transient Immunity (CMTI) | 25 kV/µs |
| Supply Voltage Range | 2.7 V to 5.5 V |
| Propagation Delay | 100 ns |
| Power Consumption (5V, 0-2 Mbps) | 1.7 mA per channel max |
| Power Consumption (5V, 2-10 Mbps) | 4.0 mA per channel max |
| Power Consumption (3V, 0-2 Mbps) | 1.0 mA per channel max |
| Power Consumption (3V, 2-10 Mbps) | 2.1 mA per channel max |
| Khoảng nhiệt độ hoạt động | -40°C to +105°C |
| Package Type | 16-SOIC (0.295", 7.50mm Width) |
| Kiểu lắp đặt | Surface Mount |
| Technology | iCoupler |
| Trạng thái RoHS | Compliant |
Cấu hình chân ADUM1310ARWZ
| Chân 1 | VDD1 — Input side supply voltage (2.7V to 5.5V) |
| Chân 2 | GND1 — Input side ground |
| Chân 3 | VIA — Input channel A |
| Chân 4 | VIB — Input channel B |
| Chân 5 | VIC — Input channel C |
| Chân 6 | GND1 — Input side ground |
| Chân 7 | NC — No connect |
| Chân 8 | NC — No connect |
| Chân 9 | NC — No connect |
| Chân 10 | NC — No connect |
| Chân 11 | GND2 — Output side ground |
| Chân 12 | VOC — Output channel C |
| Chân 13 | VOB — Output channel B |
| Chân 14 | VOA — Output channel A |
| Chân 15 | GND2 — Output side ground |
| Chân 16 | VDD2 — Output side supply voltage (2.7V to 5.5V) |
Ứng dụng tiêu biểu
ADUM1310ARWZ phù hợp cho 6 Áp dụngs: Industrial Fieldbus Isolation, Isolated SPI Interface, Motor Drive Signal Isolation, Isolated Power Supply Feedback, Isolated UART Communication, Medical Equipment Isolation.
Industrial Fieldbus Isolation
The ADUM1310ARWZ provides galvanic isolation for industrial fieldbus interfaces such as RS-485, CAN, and PROFIBUS. Its 3750 Vrms isolation voltage and 25 kV/µs CMTI ensure reliable communication in harsh industrial environments with high electrical noise. The 1 Mbps data rate is sufficient for most fieldbus protocols, and the low power consumption (1.7 mA per channel at 5V) minimizes heat dissipation in control cabinets. The default output state control pin allows safe power-up behavior, preventing spurious signals on the bus during system initialization.
Được đề xuất
Isolated SPI Interface
The ADUM1310ARWZ is ideal for isolating SPI buses between microcontrollers and peripheral devices such as ADCs, DACs, and sensors. With three channels, it can isolate MOSI, MISO, and SCK signals, while the chip select can be handled by an additional channel or a separate isolator. The 1 Mbps data rate supports typical SPI clock frequencies up to 1 MHz, and the low propagation delay (100 ns) ensures minimal signal skew. The wide supply voltage range (2.7V to 5.5V) allows direct interfacing with both 3.3V and 5V logic, simplifying system design.
Được đề xuất
Motor Drive Signal Isolation
In motor drive systems, the ADUM1310ARWZ isolates control signals from the high-voltage power stage. Its high CMTI (25 kV/µs) prevents false triggering due to fast switching transients from IGBTs or MOSFETs. The 3-channel configuration can isolate gate drive signals, fault feedback, and enable signals. The operating temperature range of -40°C to +105°C ensures reliable operation in motor control cabinets. The low power consumption reduces thermal stress in densely populated control boards.
Được đề xuất
Isolated Power Supply Feedback
The ADUM1310ARWZ can be used to isolate feedback signals in switched-mode power supplies. It transmits the output voltage sense signal across the isolation barrier to the primary-side controller, ensuring safe and accurate regulation. The 1 Mbps data rate is sufficient for feedback loops, and the low propagation delay (100 ns) minimizes loop latency. The default output state control pin ensures the feedback signal is in a known state during power-up, preventing output overshoot. The wide supply voltage range allows operation from auxiliary windings or bias supplies.
Được đề xuất
Isolated UART Communication
The ADUM1310ARWZ is well-suited for isolating UART interfaces between microcontrollers and external devices such as sensors, modems, or other controllers. With three channels, it can isolate TX, RX, and a control signal like RTS or CTS. The 1 Mbps data rate supports standard UART baud rates up to 115200 and beyond. The low power consumption is beneficial for battery-powered or power-sensitive applications. The high CMTI ensures reliable communication in electrically noisy environments.
Được đề xuất
Medical Equipment Isolation
The ADUM1310ARWZ provides galvanic isolation for medical devices, ensuring patient safety by separating low-voltage control circuits from high-voltage sections. Its 3750 Vrms isolation voltage meets typical medical isolation requirements. The low power consumption and small SOIC-16 package make it suitable for compact medical devices. The default output state control pin ensures safe operation during power-up and fault conditions. The wide operating temperature range supports various medical environments.
Được đề xuất
Tóm tắt các sản phẩm được đề xuất
Dữ liệu tham khảo kỹ thuật cho ADUM1310ARWZ — 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 | ADUM1310ARWZ-RL | ADUM1310BRWZ | ADUM1311ARWZ | ISO7731DWR |
|---|---|---|---|---|---|
| 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 | Analog Devices | Texas Instruments |
| Isolation Voltage | 3750 Vrms | 3750 Vrms | 3750 Vrms | 3750 Vrms | 3000 Vrms |
| Data Rate | 1 Mbps | 1 Mbps | 10 Mbps | 1 Mbps | 100 Mbps |
| CMTI | 25 kV/µs | 25 kV/µs | 25 kV/µs | 25 kV/µs | 100 kV/µs |
| Supply Voltage Range | 2.7V to 5.5V | 2.7V to 5.5V | 2.7V to 5.5V | 2.7V to 5.5V | 2.25V to 5.5V |
| Propagation Delay | 100 ns | 100 ns | 50 ns | 100 ns | 10 ns |
| Operating Temperature Range | -40°C to +105°C | -40°C to +105°C | -40°C to +105°C | -40°C to +105°C | -55°C to +125°C |
Bảo phân biệt quan trọng
- iCoupler technology with monolithic air core transformers (vsISO7731DWR)
- Low power consumption at 5V operation (vsISO7731DWR)
- Patented refresh feature for DC correctness (vsSi8631BB-B-IS1)
Ghi chú thiết kế
Place decoupling capacitors (0.1 µF and 10 µF) close to VDD1 and VDD2 pins to ensure stable operation. Use a solid ground plane under the device to minimize noise. Keep the isolation barrier clear of copper traces to maintain isolation voltage rating.
Route high-speed signals away from the isolation barrier to avoid coupling. Maintain at least 8 mm creepage distance between input and output sides for 3750 Vrms isolation. Follow the recommended PCB layout in the datasheet to achieve specified CMTI performance.
Do not exceed the absolute maximum ratings for supply voltage (7V) or input/output voltage. Ensure the default output state pin is configured correctly to avoid unintended logic levels during power-up. Avoid floating unused input pins; tie them to GND or VDD as appropriate.
Thông tin tuân thủ
RoHS compliant per distributor data. Other compliance information not explicitly stated in provided data.