Overview
The ADUM2251ARIZ-RL, produced by Analog Devices Inc., is a digital isolator designed for bidirectional communication in I2C, SMBus, or PMBus interfaces. This component is part of the ADuM2250/ADuM2251 series and is notable for its hot swappable capability and non-latching operation. It ensures reliable and isolated communication between two sides of a system, making it suitable for various applications requiring galvanic isolation.
Key Specifications
| Parameter | Min | Typ | Max | Unit | Test Conditions/Comments |
|---|---|---|---|---|---|
| Supply/Logic Levels | 3.0 | 5.5 | V | ||
| Operating Frequency | 1000 | kHz | |||
| Current Sink Capability | 30 | mA | |||
| Input to Output Resistance | 1012 | Ω | |||
| Input to Output Capacitance | 2.2 | pF | f = 1 MHz | ||
| Input Capacitance | 4.0 | pF | |||
| Junction to Ambient Thermal Resistance | 45 | °C/W | Thermocouple located at center of package underside | ||
| Maximum Operating Temperature | 105 | °C |
Key Features
- Bidirectional I2C communication
- Open-drain interfaces
- Suitable for hot swap applications
- 30 mA current sink capability
- 1000 kHz operation frequency
- 3.0 V to 5.5 V supply/logic levels
- Available in 16-lead SOIC wide body package versions (RW-16 and RI-16-2)
- High temperature operation up to 105°C
- Safety and regulatory approvals: UL recognition, CSA Component Acceptance Notice 5A, IEC 60601-1, IEC 60950-1, VDE certificate of conformity
- Qualified for automotive applications
Applications
- Isolated I2C, SMBus, or PMBus interfaces
- Multilevel I2C interfaces
- Power supplies
- Networking
- Power over Ethernet (PoE)
Q & A
- What is the ADUM2251ARIZ-RL used for?
The ADUM2251ARIZ-RL is used for bidirectional I2C communication in applications requiring galvanic isolation, such as isolated I2C, SMBus, or PMBus interfaces.
- What are the supply/logic levels of the ADUM2251ARIZ-RL?
The supply/logic levels of the ADUM2251ARIZ-RL range from 3.0 V to 5.5 V.
- What is the maximum operating frequency of the ADUM2251ARIZ-RL?
The maximum operating frequency of the ADUM2251ARIZ-RL is 1000 kHz.
- What is the current sink capability of the ADUM2251ARIZ-RL?
The ADUM2251ARIZ-RL has a current sink capability of 30 mA.
- What are the package options for the ADUM2251ARIZ-RL?
The ADUM2251ARIZ-RL is available in 16-lead SOIC wide body package versions (RW-16 and RI-16-2).
- What are the safety and regulatory approvals for the ADUM2251ARIZ-RL?
The ADUM2251ARIZ-RL has safety and regulatory approvals including UL recognition, CSA Component Acceptance Notice 5A, IEC 60601-1, IEC 60950-1, and VDE certificate of conformity.
- Is the ADUM2251ARIZ-RL suitable for automotive applications?
Yes, the ADUM2251ARIZ-RL is qualified for automotive applications.
- What is the maximum operating temperature of the ADUM2251ARIZ-RL?
The maximum operating temperature of the ADUM2251ARIZ-RL is 105°C.
- Can the ADUM2251ARIZ-RL be used in hot swap applications?
Yes, the ADUM2251ARIZ-RL is suitable for hot swap applications.
- What is the input to output resistance of the ADUM2251ARIZ-RL?
The input to output resistance of the ADUM2251ARIZ-RL is 1012 Ω.
