ADUM1310ARWZ - 3-Ch Digital Isolator 3750Vrms | Analog Devices
MPN: ADUM1310ARWZ ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $3.42 | $3.42 |
| 10 | $3.08 | $30.80 |
| 100 | $2.74 | $274.00 |
| 500 | $2.47 | $1,235.00 |
| 1,000 | $2.2 | $2,200.00 |
Drop-in alternatives for ADUM1310ARWZ — same package, pin-to-pin compatible. Different-package parts requiring PCB rework are excluded.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
ADUM1310ARWZ-RL
✅ Drop-In📋 Reference alternative (not in catalog)
ADUM1310BRWZ
✅ Drop-In📋 Reference alternative (not in catalog)
ADUM1311ARWZ
✅ Drop-In✓ In Stock
$2.25 / Unit
View Datasheet →ADUM1300ARWZ
✅ Drop-In✓ In Stock
$1.75 / Unit
View Datasheet →ISO7731DWR
✅ Drop-In📋 Reference alternative (not in catalog)
Si8631BB-B-IS1
✅ Drop-In📋 Reference alternative (not in catalog)
ADUM1310ARWZ Maximum Ratings & Electrical Characteristics
| Number of Channels | 3 |
| Isolation Voltage | 3750 Vrms |
| Data Rate | 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 |
| Operating Temperature Range | -40°C to +105°C |
| Package Type | 16-SOIC (0.295", 7.50mm Width) |
| Mounting Type | Surface Mount |
| Technology | iCoupler |
| RoHS Status | Compliant |
ADUM1310ARWZ Pin Configuration
| Pin 1 | VDD1 — Input side supply voltage (2.7V to 5.5V) |
| Pin 2 | GND1 — Input side ground |
| Pin 3 | VIA — Input channel A |
| Pin 4 | VIB — Input channel B |
| Pin 5 | VIC — Input channel C |
| Pin 6 | GND1 — Input side ground |
| Pin 7 | NC — No connect |
| Pin 8 | NC — No connect |
| Pin 9 | NC — No connect |
| Pin 10 | NC — No connect |
| Pin 11 | GND2 — Output side ground |
| Pin 12 | VOC — Output channel C |
| Pin 13 | VOB — Output channel B |
| Pin 14 | VOA — Output channel A |
| Pin 15 | GND2 — Output side ground |
| Pin 16 | VDD2 — Output side supply voltage (2.7V to 5.5V) |
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
ADUM1310ARWZ is suitable for 6 applications: 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.
Recommended
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.
Recommended
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.
Recommended
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.
Recommended
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.
Recommended
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.
Recommended
Recommended Products Summary
Engineering reference data for ADUM1310ARWZ — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | 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 |
Key Differentiators
- iCoupler technology with monolithic air core transformers (vs ISO7731DWR)
- Low power consumption at 5V operation (vs ISO7731DWR)
- Patented refresh feature for DC correctness (vs Si8631BB-B-IS1)
Design Notes
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.
Compliance Information
RoHS compliant per distributor data. Other compliance information not explicitly stated in provided data.
