ADuM1253
Description
The ADuM1253 offers two open-drain channels, one unidirectional and one bidirectional for applications, such as I2C, that require data to be transmitted in both directions on the same line but have a unidirectional clock. To prevent latch-up action, side 1 outputs comprise special buffers that regulate the logic-low voltage at 0.64V, and the input logic-low threshold is at least 50mV lower than the output logic-low voltage.
Key Features
- The ADuM1253 is available in both an 8-pin narrow- and wide-body SOIC package, and in an 8-pin MSOP package. The device is rated for operation at ambient temperatures of -40°C to +125°C. Key Applications
- Isolated I2C/SMBus Interface
- Battery Management Systems
- Power Over Ethernet (PoE)
- Motor Control Systems Simplified Application Diagram
- 1µF 1nF 1nF
- 1µF VDD2 VDD1 ADuM1253 SDA SDA2 SDA1 SDA µC SCL SCL2 SCL1 SCL GND2 GND1 Benefits and Features
- Low VOL(MAX) for Greater I2C Device Compatibility
- Side 1: 0.69V
- Side 2: 0.4V
