ADUM3150BRSZ-RL7 - 6-Ch SPI Digital Isolator | Analog Devices
MPN: ADUM3150BRSZ-RL7 ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $8.82 | $8.82 |
| 10 | $8.1 | $81.00 |
| 100 | $7.2 | $720.00 |
| 500 | $6.5 | $3,250.00 |
| 1,000 | $5.9 | $5,900.00 |
Drop-in alternatives for ADUM3150BRSZ-RL7 — same package, pin-to-pin compatible. Different-package parts requiring PCB rework are excluded.
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View Datasheet →ADUM3150BRSZ-RL7 Maximum Ratings & Electrical Characteristics
| Number of Channels | 6 |
| Isolation Voltage | 3750 Vrms |
| Data Rate | 40 Mbps |
| CMTI | 25 kV/µs |
| Propagation Delay | 14 ns |
| Jitter | 1 ns |
| SPI Clock Rate | 17 MHz |
| Package | 20-SSOP (0.209", 5.30mm Width) |
| Mounting Type | Surface Mount |
| Operating Temperature | [DATA_NEEDED: operating temperature range] |
| Supply Voltage | [DATA_NEEDED: supply voltage range] |
| Technology | iCoupler |
| RoHS Status | Compliant |
| REACH Status | Compliant |
| MSL Level | [DATA_NEEDED: MSL level] |
ADUM3150BRSZ-RL7 Pin Configuration
| Pin 1 | VDD1 — Primary side supply voltage |
| Pin 2 | GND1 — Primary side ground |
| Pin 3 | SCLK — Serial clock input |
| Pin 4 | MOSI — Master out slave in |
| Pin 5 | MISO — Master in slave out |
| Pin 6 | SS — Slave select |
| Pin 7 | GND1 — Primary side ground |
| Pin 8 | VDD1 — Primary side supply voltage |
| Pin 9 | VDD2 — Secondary side supply voltage |
| Pin 10 | GND2 — Secondary side ground |
| Pin 11 | GND2 — Secondary side ground |
| Pin 12 | VDD2 — Secondary side supply voltage |
| Pin 13 | NC — No connect |
| Pin 14 | NC — No connect |
| Pin 15 | NC — No connect |
| Pin 16 | NC — No connect |
| Pin 17 | NC — No connect |
| Pin 18 | NC — No connect |
| Pin 19 | NC — No connect |
| Pin 20 | NC — No connect |
Safe Operating Area (SOA) & Thermal Characteristics
No official SOA curve available for this digital IC. Always operate within absolute maximum ratings specified in the datasheet. Ensure adequate cooling and derate as needed.
Typical Applications
ADUM3150BRSZ-RL7 is suitable for 6 applications: 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.
Recommended
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.
Recommended
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.
Recommended
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.
Recommended
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.
Recommended
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.
Recommended
Recommended Products Summary
Engineering reference data for ADUM3150BRSZ-RL7 — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | 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 |
Key Differentiators
- SPI-optimized isolation with delay clock (vs ISO7741DW)
- Higher isolation voltage than ADUM3150ARSZ (vs ADUM3150ARSZ)
- Tape and reel packaging for automated assembly (vs ADUM3150BRSZ)
Design Notes
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.
Compliance Information
RoHS and REACH compliant per Analog Devices product page. Not AEC-Q100 qualified.