ADUM1201ARZ - Dual-Channel Digital Isolator | Analog Devices
MPN: ADUM1201ARZ β Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $2.5 | $2.50 |
| 10 | $2.25 | $22.50 |
| 100 | $1.95 | $195.00 |
| 500 | $1.75 | $875.00 |
| 1,000 | $1.6 | $1,600.00 |
Drop-in alternatives for ADUM1201ARZ β same package, pin-to-pin compatible. Different-package parts requiring PCB rework are excluded.
Quick Comparison Tool β Select alternative parts for side-by-side comparison:
ADUM1201BRZ
β Drop-Inπ Reference alternative (not in catalog)
ADUM1201ARZ-RL7
β Drop-Inπ Reference alternative (not in catalog)
ADUM1201WURZ
β Drop-Inπ Reference alternative (not in catalog)
ADUM1200ARZ
β Drop-Inπ Reference alternative (not in catalog)
ISO7721DR
β Drop-Inπ Reference alternative (not in catalog)
ADUM1201ARZ Maximum Ratings & Electrical Characteristics
| Number of Channels | 2 |
| Channel Directionality | 1/1 (one forward, one reverse) |
| Isolation Voltage | 2500 Vrms |
| Data Rate | 1 Mbps |
| Common-Mode Transient Immunity (CMTI) | 25 kV/Β΅s |
| Supply Voltage (VDD1) | 3.0 V to 5.5 V |
| Supply Voltage (VDD2) | 3.0 V to 5.5 V |
| Operating Temperature Range | -40Β°C to +105Β°C |
| Package | 8-SOIC (0.154", 3.90mm Width) |
| Mounting Type | Surface Mount |
| Technology | iCoupler |
| Propagation Delay | [DATA_NEEDED: Propagation Delay] |
| Pulse Width Distortion | [DATA_NEEDED: Pulse Width Distortion] |
| RoHS Status | Compliant |
| MSL Level | [DATA_NEEDED: MSL Level] |
ADUM1201ARZ Pin Configuration
| Pin 1 | VDD1 β Supply voltage for side 1 |
| Pin 2 | GND1 β Ground for side 1 |
| Pin 3 | VIA β Input channel A (side 1) |
| Pin 4 | VIB β Input channel B (side 1) |
| Pin 5 | VOB β Output channel B (side 2) |
| Pin 6 | VOA β Output channel A (side 2) |
| Pin 7 | GND2 β Ground for side 2 |
| Pin 8 | VDD2 β Supply voltage for side 2 |
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
ADUM1201ARZ is suitable for 6 applications: Industrial Automation, Medical Equipment, Communication Systems, Power Supply Control, Motor Drives, IoT and Smart Home.
Industrial Automation
The ADUM1201ARZ is ideal for isolating SPI and UART interfaces in industrial control systems. Its 2500Vrms isolation and 25kV/Β΅s CMTI ensure reliable communication in noisy environments with ground potential differences. The 1Mbps data rate is sufficient for most sensor and actuator interfaces. The device's low power consumption and small SOIC package make it easy to integrate into PLCs and motor drives.
Recommended
Medical Equipment
In medical monitoring equipment, the ADUM1201ARZ provides galvanic isolation to protect patients and sensitive electronics from high voltages. Its 2500Vrms isolation rating meets safety requirements for many medical applications. The device's stable performance over temperature and lifetime, unlike optocouplers, ensures reliable operation in critical monitoring systems. The small package is suitable for portable devices.
Recommended
Communication Systems
The ADUM1201ARZ is used in communication infrastructure to isolate digital interfaces between line cards and control planes. Its 1Mbps data rate supports protocols like UART and low-speed SPI. The high CMTI of 25kV/Β΅s prevents data corruption from lightning surges and switching transients. The device's low power consumption is beneficial in high-density systems.
Recommended
Power Supply Control
In power supply designs, the ADUM1201ARZ isolates control signals between the primary and secondary sides. Its 2500Vrms isolation withstands high-voltage transients. The device's fast CMTI ensures stable operation during switching events. The 1Mbps data rate is adequate for PWM control signals. The small SOIC package saves board space in compact power modules.
Recommended
Motor Drives
The ADUM1201ARZ is used in motor drive circuits to isolate control signals from high-voltage power stages. Its 25kV/Β΅s CMTI prevents false triggering from fast IGBT switching transients. The device's 2500Vrms isolation protects low-voltage control electronics. The 1Mbps data rate is sufficient for encoder and control interfaces. The device's robustness over temperature makes it suitable for industrial drives.
Recommended
IoT and Smart Home
In IoT devices, the ADUM1201ARZ isolates communication interfaces to protect against ground loops and noise. Its low power consumption is ideal for battery-powered sensors. The 1Mbps data rate supports common protocols like UART and I2C (with level shifting). The small SOIC package fits compact designs. The device's reliability ensures long-term operation in smart home applications.
Recommended
Recommended Products Summary
Engineering reference data for ADUM1201ARZ β comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | ADUM1201BRZ | ADUM1201ARZ-RL7 | ADUM1201WURZ | ADUM1200ARZ | ISO7721DR |
|---|---|---|---|---|---|---|
| Package | 8-SOIC | 8-SOIC | 8-SOIC | 8-SOIC | 8-SOIC | 8-SOIC |
| Brand | Analog Devices | Analog Devices | Analog Devices | Analog Devices | Analog Devices | Texas Instruments |
| Isolation Voltage | 2500 Vrms | 2500 Vrms | 2500 Vrms | 2500 Vrms | 2500 Vrms | 3000 Vrms |
| Data Rate | 1 Mbps | 10 Mbps | 1 Mbps | 1 Mbps | 1 Mbps | 100 Mbps |
| CMTI | 25 kV/Β΅s | 25 kV/Β΅s | 25 kV/Β΅s | 25 kV/Β΅s | 25 kV/Β΅s | 100 kV/Β΅s |
| Channel Directionality | 1/1 | 1/1 | 1/1 | 1/1 | 2/0 | 2/0 |
| Supply Voltage Range | 3.0V to 5.5V | 3.0V to 5.5V | 3.0V to 5.5V | 3.0V to 5.5V | 3.0V to 5.5V | 2.25V to 5.5V |
| Automotive Grade | No | No | No | Yes | No | No |
Key Differentiators
- iCoupler technology eliminates optocoupler drawbacks (vs Optocouplers)
- 1/1 channel directionality (vs ADUM1200ARZ)
- Automotive grade option available (vs ADUM1201ARZ)
Design Notes
Place 0.1Β΅F decoupling capacitors close to VDD1 and VDD2 pins to minimize noise. Use a solid ground plane on both sides of the isolation barrier. Keep the isolation barrier clear of copper traces to maintain isolation integrity.
Ensure both VDD1 and VDD2 are within the specified range of 3.0V to 5.5V. Use separate power supplies or regulators for each side to avoid coupling noise across the isolation barrier. Consider using low-dropout regulators for clean power.
Do not exceed the maximum data rate of 1Mbps. For higher speeds, consider the ADUM1201BRZ. Also, ensure the input signals have proper rise/fall times to avoid excessive propagation delay. Refer to the datasheet for recommended input signal characteristics.
Compliance Information
RoHS compliant per DigiKey listing. Automotive grade variant ADUM1201WURZ is AEC-Q100 qualified.
