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ADI ADUM1251ARZ
| Manufacturer | |
| MPN | ADUM1251ARZ |
| LCSC Part # | C208536 |
| Packaging | SOIC-8 |
| Customer # | |
| Key Attributes | Hot-swappable dual-channel I2C isolator |
| Datasheet | ADI ADUM1251ARZ |
| RoHS Compliance | 1 documents available |
| Alternative Parts | 5 |
Products Specifications
| Type | Description | |
|---|---|---|
| Category | Isolators/Digital Isolators | |
| Manufacturer | ADI | |
| Packaging | SOIC-8 | |
| Peak Output Current(sink) | 30mA | |
| CMTI(kV/us) | 35kV/us | |
| Maximum I2C Clock | 1MHz | |
| Clock Direction | Bidirectional | |
| Voltage - Supply | 3V~5.5V | |
| Operating Temperature | -40℃~+105℃ | |
| Isolation Voltage(Vrms) | 2500 |
| Type | Description | |
|---|---|---|
| Category | Isolators/Digital Isolators | |
| Manufacturer | ADI | |
| Packaging | SOIC-8 | |
| Peak Output Current(sink) | 30mA | |
| CMTI(kV/us) | 35kV/us |
| Type | Description | |
|---|---|---|
| Maximum I2C Clock | 1MHz | |
| Clock Direction | Bidirectional | |
| Voltage - Supply | 3V~5.5V | |
| Operating Temperature | -40℃~+105℃ | |
| Isolation Voltage(Vrms) | 2500 |
Introduction
The ADuM1250/ADuM1251 are hot-swappable digital isolators with built-in non-latching bidirectional communication channels, compatible with the I²C interface. This eliminates the need to split I2C signals into separate transmit and receive signals for use with discrete optocouplers. The ADuM1250 provides two bidirectional channels, supporting a fully isolated I2C interface. The ADuM1251 provides one bidirectional channel and one unidirectional channel, suitable for applications that do not require a bidirectional clock. Both the ADuM1250 and ADuM1251 incorporate hot-swap circuitry to prevent data corruption when inserting passive cards into an active bus. These isolators utilize iCoupler chip-scale transformer technology. iCoupler is a magnetic isolation technology that offers superior performance, size, and power consumption compared to optocouplers. The ADuM1250/ADuM1251 integrate iCoupler channels with semiconductor circuitry to implement a fully isolated I2C interface in a compact package.
Features
- Bidirectional I2C communication
- Open-drain interface
- Suitable for hot-swap applications
- 30mA sink current capability
- Operating frequency: 1,000kHz
- Supply voltage/logic level: 3.0V to 5.5V
- 8-pin SOIC package, RoHS compliant
- Operating temperature up to: 125°C
- Qualified for automotive applications
- Safety and regulatory approvals: UL recognition 1-minute 2,500Vrms per UL 1577
- CSA Component Acceptance Notice #5A
- VDE Certificate of Conformity DIN V VDE V 0884-10 (VDE V 0884-10):2006-12, VIORM = 560Vpeak
Applications
- I2C, SMBus, or PMBus interface isolation
- Multi-level I2C interface
- Power supply
- Networking
- Power over Ethernet
- Hybrid vehicle battery management
Products Specifications
| Type | Description | |
|---|---|---|
| Category | Isolators/Digital Isolators | |
| Manufacturer | ADI | |
| Packaging | SOIC-8 | |
| Peak Output Current(sink) | 30mA | |
| CMTI(kV/us) | 35kV/us | |
| Maximum I2C Clock | 1MHz | |
| Clock Direction | Bidirectional | |
| Voltage - Supply | 3V~5.5V | |
| Operating Temperature | -40℃~+105℃ | |
| Isolation Voltage(Vrms) | 2500 |
| Type | Description | |
|---|---|---|
| Category | Isolators/Digital Isolators | |
| Manufacturer | ADI | |
| Packaging | SOIC-8 | |
| Peak Output Current(sink) | 30mA | |
| CMTI(kV/us) | 35kV/us |
| Type | Description | |
|---|---|---|
| Maximum I2C Clock | 1MHz | |
| Clock Direction | Bidirectional | |
| Voltage - Supply | 3V~5.5V | |
| Operating Temperature | -40℃~+105℃ | |
| Isolation Voltage(Vrms) | 2500 |
Introduction
The ADuM1250/ADuM1251 are hot-swappable digital isolators with built-in non-latching bidirectional communication channels, compatible with the I²C interface. This eliminates the need to split I2C signals into separate transmit and receive signals for use with discrete optocouplers. The ADuM1250 provides two bidirectional channels, supporting a fully isolated I2C interface. The ADuM1251 provides one bidirectional channel and one unidirectional channel, suitable for applications that do not require a bidirectional clock. Both the ADuM1250 and ADuM1251 incorporate hot-swap circuitry to prevent data corruption when inserting passive cards into an active bus. These isolators utilize iCoupler chip-scale transformer technology. iCoupler is a magnetic isolation technology that offers superior performance, size, and power consumption compared to optocouplers. The ADuM1250/ADuM1251 integrate iCoupler channels with semiconductor circuitry to implement a fully isolated I2C interface in a compact package.
Features
- Bidirectional I2C communication
- Open-drain interface
- Suitable for hot-swap applications
- 30mA sink current capability
- Operating frequency: 1,000kHz
- Supply voltage/logic level: 3.0V to 5.5V
- 8-pin SOIC package, RoHS compliant
- Operating temperature up to: 125°C
- Qualified for automotive applications
- Safety and regulatory approvals: UL recognition 1-minute 2,500Vrms per UL 1577
- CSA Component Acceptance Notice #5A
- VDE Certificate of Conformity DIN V VDE V 0884-10 (VDE V 0884-10):2006-12, VIORM = 560Vpeak
Applications
- I2C, SMBus, or PMBus interface isolation
- Multi-level I2C interface
- Power supply
- Networking
- Power over Ethernet
- Hybrid vehicle battery management
C208536 EasyEDA Library
Compliance & Export Codes
| Type | Details |
|---|---|
| RoHS | ROHS3 Compliant |
| ECCN | EAR99 |
| CNHTS | |
| USHTS | |
| TARIC | |
| CAHTS | |
| BRHTS | |
| INHTS | |
| MXHTS |
| Type | Details |
|---|---|
| RoHS | ROHS3 Compliant |
| ECCN | EAR99 |
| CNHTS | |
| USHTS | |
| TARIC |
| Type | Details |
|---|---|
| CAHTS | |
| BRHTS | |
| INHTS | |
| MXHTS | |