ADUM1201: Dual-Channel Digital Isolator (1/1 Channel Directionality)
The ADuM120x1 are dual-channel, digital isolators based on the Analog Devices, Inc., iCoupler(R) technology. Combining high speed CMOS and monolithic transformer technologies, these isolation components provide outstanding performance characteristics superior to alternatives, such as optocouplers.
By avoiding the use of LEDs and photodiodes, iCoupler devices remove the design difficulties commonly associated with optocouplers. The typical optocoupler concerns regarding uncertain current transfer ratios, nonlinear transfer functions, and temperature and lifetime effects are eliminated with the simple iCoupler digital interfaces and stable performance char-acteristics. The need for external drivers and other discrete components is eliminated with these iCoupler products. Further-more, iCoupler devices consume one-tenth to one-sixth the power of optocouplers at comparable signal data rates.
The ADuM120x isolators provide two independent isolation channels in a variety of channel configurations and data rates (see the Ordering Guide). Both parts operate with the supply voltage on either side ranging from 2.7 V to 5.5 V, providing compatibility with lower voltage systems as well as enabling a voltage translation functionality across the isolation barrier. In addition, the ADuM120x provide low pulse width distortion (<3 ns for CR grade) and tight channel-to-channel matching (<3 ns for CR grade). Unlike other optocoupler alternatives, the ADuM120x isolators have a patented refresh feature that ensures dc correctness in the absence of input logic transitions and during power-up/power-down conditions.
ADuM1200W and ADuM1201W are automotive grade versions qualified for 125°C operation per AEC-Q100. See the Automotive Products section for more details.
产品应用领域 Applications
- Size-critical multichannel isolation
- SPI interface/data converter isolation
- RS-232/RS-422/RS-485 transceiver isolation
- Digital field bus isolation
- Hybrid electric vehicles, battery monitor, and motor drive
ADUM1201 特点
- Narrow body, RoHS-compliant, SOIC 8-lead package
- Low power operation
- Bidirectional communication
- 3 V/5 V level translation
- High temperature operation: 125°C
- High data rate: dc to 25 Mbps (NRZ)
- Precise timing characteristics
- High common-mode transient immunity: >25 kV/μs
- Automotive versions qualified per AEC-Q100
- Please see data sheet for additional features
ADUM1201 功能框图
| 产品型号 | 产品状态 | 封装 | 引脚 | 温度范围 |
|---|---|---|---|---|
| ADUM1201ARZ | 量产 | 8 ld SOIC | 8 | 工业 |
| ADUM1201ARZ-RL7 | 量产 | 8 ld SOIC | 8 | 工业 |
| ADUM1201BRZ | 量产 | 8 ld SOIC | 8 | 工业 |
| ADUM1201BRZ-RL7 | 量产 | 8 ld SOIC | 8 | 工业 |
| ADUM1201CR-RL7 | 量产 | 8 ld SOIC | 8 | 工业 |
| ADUM1201CRZ | 量产 | 8 ld SOIC | 8 | 工业 |
| ADUM1201CRZ-RL7 | 量产 | 8 ld SOIC | 8 | 工业 |
| ADUM1201WSRZ | 量产 | 8 | 汽车级 | |
| ADUM1201WSRZ-RL7 | 量产 | 8 | 汽车级 | |
| ADUM1201WTRZ | 量产 | 8 | 汽车级 | |
| ADUM1201WTRZ-RL7 | 量产 | 8 | 汽车级 | |
| ADUM1201WURZ | 量产 | 8 | 汽车级 | |
| ADUM1201WURZ-RL7 | 量产 | 8 | 汽车级 |