ADUM3153BRSZ-RL7 - 7-Ch SPI Digital Isolator | Analog Devices
MPN： ADUM3153BRSZ-RL7 ✓ 啟用中ADUM3153BRSZ-RL7 概覽
Digital isolators are components that transfer digital signals across an isolation barrier, providing galvanic isolation to protect sensitive circuitry from high voltages, noise, and ground loops. They are essential in industrial, medical, and communication systems where safety and signal integrity are critical. The ADUM3153BRSZ-RL7 uses Analog Devices' iCoupler® chip-scale transformer technology, which offers superior performance compared to optocouplers, including higher data rates, lower power consumption, and better reliability.
Key features include 7 channels with 0/3 auxiliary channel directionality, supporting SPI clock rates up to 17 MHz with a low propagation delay of 14 ns. The device operates over a wide supply voltage range and features same-direction timing matching, ensuring synchronized data transmission. The 34Mbps data rate and 25kV/µs CMTI make it suitable for high-speed, noisy environments.
The ADUM3153BRSZ-RL7 is designed for isolated SPI communication in applications such as motor control, industrial automation, and isolated sensor interfaces. Its low propagation delay and high CMTI ensure reliable data transfer in harsh industrial settings. The device also includes an enable pin for power management and supports a wide temperature range of -40°C to +125°C.
When designing with this isolator, ensure proper PCB layout with adequate creepage and clearance distances to maintain isolation ratings. The device requires a bypass capacitor on both supply pins to ensure stable operation. The ADUM3153BRSZ-RL7 is RoHS compliant and lead-free, making it suitable for environmentally conscious designs.
直接替換替代品，適用於 ADUM3153BRSZ-RL7 — 相同封裝，腳位對腳位相容。需重新設計 PCB 的不同封裝零件不列入。
此系列的變體
與下列產品可直接替換的同系列型號： ADUM3153BRSZ-RL7 （相同外形與佔位） — 差異在於 Technology, Number of Channels, Package, RoHS Status, Data Rate.
ADUM3153ARSZ-RL7
✅ 直接替換📋 參考替代品（不在目錄中）
ADUM3153BRSZ
✅ 直接替換聯絡詢價
查看資料表 →ADUM3153BRIZ
✅ 直接替換 ⚠️ 規格未經驗證📋 參考替代品（不在目錄中）
ADUM3153ARSZ
✅ 直接替換 ⚠️ 規格未經驗證聯絡詢價
查看資料表 →ADUM3153BRSZ-RL7
✅ 直接替換聯絡詢價
查看資料表 →ADUM3153BRSZ-RL7 規格
| Number of Channels | 7 |
| Isolation Voltage | 3750 Vrms |
| 資料速率 | 34 Mbps |
| CMTI | 25 kV/µs |
| Propagation Delay | 14 ns |
| SPI Clock Rate | 17 MHz |
| 封裝 | 20-SSOP (0.209", 5.30mm Width) |
| 工作溫度 | -40°C to +125°C |
| 安裝類型 | Surface Mount |
| RoHS 狀態 | Compliant |
| Lead-Free | Yes |
| Technology | iCoupler® |
| Auxiliary Channel Directionality | 0/3 |
ADUM3153BRSZ-RL7 腳位配置
| 腳位 1 | VDD1 — Supply voltage for side 1 |
| 腳位 2 | GND1 — Ground for side 1 |
| 腳位 3 | SCLK — Serial clock input |
| 腳位 4 | MOSI — Master out slave in |
| 腳位 5 | MISO — Master in slave out |
| 腳位 6 | SS — Slave select |
| 腳位 7 | GND1 — Ground for side 1 |
| 腳位 8 | NC — No connect |
| 腳位 9 | NC — No connect |
| 腳位 10 | NC — No connect |
| 腳位 11 | NC — No connect |
| 腳位 12 | NC — No connect |
| 腳位 13 | NC — No connect |
| 腳位 14 | NC — No connect |
| 腳位 15 | NC — No connect |
| 腳位 16 | NC — No connect |
| 腳位 17 | NC — No connect |
| 腳位 18 | NC — No connect |
| 腳位 19 | GND2 — Ground for side 2 |
| 腳位 20 | VDD2 — Supply voltage for side 2 |
典型應用
ADUM3153BRSZ-RL7 適用於 6 應用s: Industrial Motor Control, Isolated Sensor Interfaces, Medical Equipment, Automotive Electronics, Power Inverters, Data Acquisition Systems.
Industrial Motor Control
The ADUM3153BRSZ-RL7 provides isolated SPI communication between microcontrollers and motor drivers in industrial motor control systems. Its 34Mbps data rate and 25kV/µs CMTI ensure reliable data transfer in noisy environments with high voltage transients. The 3750Vrms isolation protects low-voltage control circuitry from high-voltage motor supplies, enhancing system safety and reliability.
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Isolated Sensor Interfaces
In isolated sensor interfaces, the ADUM3153BRSZ-RL7 transmits SPI data from sensors to a controller across an isolation barrier. Its low propagation delay of 14 ns ensures real-time data acquisition, while the high CMTI prevents data corruption from fast transients. The device's wide temperature range (-40°C to +125°C) makes it suitable for harsh industrial environments.
推薦
Medical Equipment
The ADUM3153BRSZ-RL7 is used in medical equipment to provide galvanic isolation for patient safety. Its 3750Vrms isolation rating meets stringent safety standards, while the high data rate supports fast SPI communication in diagnostic devices. The device's low power consumption and small SSOP package make it ideal for portable medical devices.
推薦
Automotive Electronics
In automotive electronics, the ADUM3153BRSZ-RL7 isolates SPI communication between ECUs and sensors, ensuring reliable operation in high-vibration and high-temperature environments. Its wide temperature range and high CMTI make it suitable for under-hood applications. The device's small package saves board space in space-constrained automotive modules.
推薦
Power Inverters
The ADUM3153BRSZ-RL7 is used in power inverters to isolate control signals from high-voltage power stages. Its 3750Vrms isolation protects low-voltage controllers from high-voltage transients, while the 34Mbps data rate supports fast switching signals. The high CMTI ensures reliable operation in the presence of fast voltage changes.
推薦
Data Acquisition Systems
In data acquisition systems, the ADUM3153BRSZ-RL7 provides isolated SPI communication between ADCs and microcontrollers, ensuring accurate data transfer without ground loop interference. Its low propagation delay and high data rate enable high-speed sampling, while the isolation protects sensitive analog circuitry from digital noise.
推薦
推薦產品摘要
工程參考資料，適用於 ADUM3153BRSZ-RL7 — 比較、設計指引及合規資訊。
選型指南
與替代品比較
| 參數 | 本產品 | ADUM3153ARSZ-RL7 | ADUM3153BRSZ | ADUM3153BRIZ |
|---|---|---|---|---|
| Package | 20-SSOP | 20-SSOP | 20-SSOP | 20-SSOP |
| Brand | Analog Devices | Analog Devices | Analog Devices | Analog Devices |
| Isolation Voltage | 3750 Vrms | 3750 Vrms | 3750 Vrms | 3750 Vrms |
| Data Rate | 34 Mbps | 34 Mbps | 34 Mbps | 34 Mbps |
| CMTI | 25 kV/µs | 25 kV/µs | 25 kV/µs | 25 kV/µs |
| Propagation Delay | 14 ns | 14 ns | 14 ns | 14 ns |
| Aux Channel Directionality | 0/3 | 3/0 | 0/3 | 0/3 |
| Packaging | Tape & Reel | Tape & Reel | Tube | Tube |
主要差異化特點
- High data rate of 34Mbps (對比ADUM3153ARSZ-RL7)
- Low propagation delay of 14ns (對比ADUM3153BRSZ)
- Tape and reel packaging (對比ADUM3153BRSZ)
設計說明
Ensure proper PCB layout with adequate creepage and clearance distances to maintain the 3750Vrms isolation rating. Place the isolator near the board edge to maximize isolation distance between the two sides. Use a solid ground plane under the device to reduce noise and improve thermal performance.
Bypass both VDD1 and VDD2 pins with 0.1µF ceramic capacitors placed as close to the pins as possible. Additionally, use a 10µF bulk capacitor on each supply rail to handle transient currents. Proper decoupling ensures stable operation and reduces noise coupling across the isolation barrier.
Do not exceed the absolute maximum ratings for supply voltage and isolation voltage. Ensure that the input signals do not exceed the supply voltage range. Also, verify that the auxiliary channel directionality (0/3) matches your application requirements; using the wrong variant can lead to incorrect data flow.
合規資訊
RoHS compliant and lead-free per distributor data. Other compliance information not provided.