Overview
The ADUM2250WARWZ from Analog Devices Inc. is a digital isolator designed for bidirectional I2C communication. This component is part of the ADuM2250/ADuM2251 series, which utilizes iCoupler® chip scale transformer technology to provide magnetic isolation. It is particularly suited for applications requiring high isolation voltage and hot swap capabilities. The device supports I2C interfaces operating within the 3.0 V to 5.5 V range and is available in a 16-lead SOIC wide body package.
Key Specifications
| Parameter | Symbol | Min | Max | Unit |
|---|---|---|---|---|
| Operating Temperature | TA | -40 | 105 | °C |
| Supply Voltages | VDD1, VDD2 | 3.0 | 5.5 | V |
| Input/Output Signal Voltage | VSDA1, VSCL1, VSDA2, VSCL2 | - | 5.5 | V |
| Capacitive Load | CL1, CL2 | 40 pF, 400 pF | - | pF |
| Static Output Loading | ISDA1, ISCL1, ISDA2, ISCL2 | 0.5 mA, 0.5 mA | 3 mA, 30 mA | mA |
| Isolation Voltage | - | - | 5000 Vrms | Vrms |
| Common Mode Transient Immunity | - | - | 25 kV/μs | kV/μs |
| Data Rate | - | - | 1 Mbps | Mbps |
Key Features
- Bidirectional I2C communication
- Open-drain interfaces
- Suitable for hot swap applications
- 30 mA current sink capability
- 1000 kHz operation
- High temperature operation up to 105°C
- Reinforced insulation with various safety and regulatory approvals (UL, CSA, IEC 60601-1, IEC 60950-1, VDE)
- Qualified for automotive applications
Applications
- Isolated I2C, SMBus, or PMBus interfaces
- Multilevel I2C interfaces
- Power supplies
- Networking
- Power over Ethernet
Q & A
- What is the primary function of the ADUM2250WARWZ?
The ADUM2250WARWZ is a digital isolator designed for bidirectional I2C communication, providing magnetic isolation between two sides of the interface.
- What is the operating temperature range of the ADUM2250WARWZ?
The operating temperature range is from -40°C to 105°C.
- What are the supply voltage requirements for the ADUM2250WARWZ?
The supply voltages (VDD1, VDD2) range from 3.0 V to 5.5 V.
- What is the isolation voltage of the ADUM2250WARWZ?
The isolation voltage is 5000 Vrms.
- Is the ADUM2250WARWZ suitable for hot swap applications?
Yes, it is designed with hot swap circuitry to prevent data glitches when an unpowered card is inserted onto an active bus.
- What is the common mode transient immunity of the ADUM2250WARWZ?
The common mode transient immunity is 25 kV/μs.
- What are the safety and regulatory approvals for the ADUM2250WARWZ?
It has approvals from UL, CSA, IEC 60601-1, IEC 60950-1, and VDE.
- Is the ADUM2250WARWZ qualified for automotive applications?
Yes, it is qualified for automotive applications.
- What is the package type of the ADUM2250WARWZ?
The package type is 16-lead SOIC wide body.
- What is the data rate supported by the ADUM2250WARWZ?
The data rate is up to 1 Mbps.
