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 | $1.55 | $1,550.00 |
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)
ADUM1201WURZ
β Drop-Inπ Reference alternative (not in catalog)
ADUM1200ARZ
β Drop-Inπ Reference alternative (not in catalog)
ADUM1201ARZ-RL7
β Drop-Inπ Reference alternative (not in catalog)
TP8485E
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 |
| Package | 8-SOIC (0.154", 3.90mm Width) |
| Operating Temperature Range | -40Β°C to +105Β°C |
| Propagation Delay | [DATA_NEEDED: Propagation Delay] |
| Pulse Width Distortion | [DATA_NEEDED: Pulse Width Distortion] |
| Quiescent Current (per side) | [DATA_NEEDED: Quiescent Current] |
| RoHS Status | Compliant |
| Mounting Type | Surface Mount |
| Technology | iCoupler (monolithic transformer) |
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/output channel A (side 1) |
| Pin 4 | VOA β Output/input channel A (side 2) |
| Pin 5 | VIB β Input/output channel B (side 2) |
| Pin 6 | VOB β Output/input channel B (side 1) |
| 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, Battery Management Systems.
Industrial Automation
The ADUM1201ARZ provides galvanic isolation for SPI and UART interfaces in PLCs and industrial sensors. Its 2500Vrms isolation and 25kV/Β΅s CMTI ensure reliable communication in noisy factory environments, protecting microcontrollers from ground loops and transients. The 1Mbps data rate is sufficient for most industrial control signals, and the 8-SOIC package fits compact PLC modules.
Recommended
Medical Equipment
In medical monitoring devices, the ADUM1201ARZ isolates patient-connected circuits from control electronics, ensuring safety and preventing leakage currents. Its 2500Vrms isolation meets basic medical isolation requirements, and the low power consumption of iCoupler technology is ideal for battery-powered devices. The 1Mbps data rate supports vital sign data transmission, and the small SOIC package saves board space in portable monitors.
Recommended
Communication Systems
The ADUM1201ARZ isolates digital interfaces in networking equipment, such as between a host processor and line drivers. Its 1Mbps data rate is suitable for control and status signals, while the 25kV/Β΅s CMTI prevents data corruption from lightning surges and switching transients. The 3.0V to 5.5V supply range allows interfacing with both 3.3V and 5V logic, simplifying design in mixed-voltage systems.
Recommended
Power Supply Control
The ADUM1201ARZ isolates feedback and control signals in switch-mode power supplies, preventing high-voltage transients from reaching the control circuitry. Its 2500Vrms isolation provides safety isolation between primary and secondary sides, and the 1Mbps data rate is adequate for PWM control signals. The high CMTI ensures stable operation during fast switching events, and the small package is ideal for compact power modules.
Recommended
Motor Drives
In motor drive systems, the ADUM1201ARZ isolates gate driver signals and feedback from the microcontroller, protecting low-voltage logic from high-voltage transients. Its 25kV/Β΅s CMTI is critical for reliable operation in the presence of fast switching noise from IGBTs or MOSFETs. The 1Mbps data rate supports control signals, and the 8-SOIC package fits on gate driver boards.
Recommended
Battery Management Systems
The ADUM1201ARZ isolates communication between battery cells and the main controller in BMS, ensuring safety and preventing ground loops. Its 2500Vrms isolation protects the controller from high voltages in battery stacks, and the low power consumption is crucial for extending battery life. The 1Mbps data rate is sufficient for cell monitoring data, and the small package is ideal for space-constrained BMS modules.
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 | ADUM1201WURZ | ADUM1200ARZ | TP8485E |
|---|---|---|---|---|---|
| Package | 8-SOIC | 8-SOIC | 8-SOIC | 8-SOIC | 8-SOIC |
| Brand | Analog Devices | Analog Devices | Analog Devices | Analog Devices | 3PEAK |
| Isolation Voltage | 2500 Vrms | 2500 Vrms | 2500 Vrms | 2500 Vrms | [DATA_NEEDED] |
| Data Rate | 1 Mbps | 10 Mbps | 1 Mbps | 1 Mbps | [DATA_NEEDED] |
| CMTI | 25 kV/Β΅s | 25 kV/Β΅s | 25 kV/Β΅s | 25 kV/Β΅s | [DATA_NEEDED] |
| Channel Directionality | 1/1 | 1/1 | 1/1 | 2/0 | [DATA_NEEDED] |
| Automotive Grade | No | No | Yes | No | No |
| Price (1pc) | $2.50 | $2.80 | $3.20 | $2.40 | $1.50 |
Key Differentiators
- iCoupler technology eliminates optocoupler drawbacks (vs Optocouplers)
- Higher CMTI than many competitors (vs TP8485E)
- Automotive grade option available (vs ADUM1201BRZ)
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, but do not connect the grounds together except through the isolator. Keep the isolation barrier clear of copper traces to maintain isolation rating.
Ensure the PCB layout provides adequate creepage and clearance distances between the two sides of the isolator to meet safety standards. For 2500Vrms isolation, maintain at least 4mm creepage and 2mm clearance on the PCB, depending on the application's safety requirements.
Do not exceed the maximum data rate of 1Mbps, as this may cause signal integrity issues. Also, ensure that the input signals have proper rise/fall times; slow edges can cause excessive propagation delay. Use pull-up or pull-down resistors as needed to define logic levels.
Compliance Information
RoHS compliant per Analog Devices. Automotive grade available in ADUM1201WURZ.
