Product Selector CardDigital Isolator Product Selection and Resource Guide
- 双向I2C 通信
- 30 mA吸电流能力
- 工作频率：1000 KHz
- 电源电压/逻辑电平：3.0 V至5.5 V
- 认证： 依据UL 1577，1分钟5000 V rms
- 依据UL 1577，1分钟5000 V rms
这些隔离器都采用ADI公司的 iCoupler® 芯片级变压器技术。iCoupler 是磁隔离技术，其功能、性能、尺寸和功耗均优于光电耦合器。ADuM2250/ADuM2251将 iCoupler 通道与半导体电路集成，在小型封装中实现完全隔离的 I2C 接口。
- I2C、 SMbus或PMBus 接口隔离
The EVAL-ADuM1250EBZ supports two bidirectional channels
for evaluation of isolated I2C interfaces in 8-lead SOIC packages.
The evaluation board provides a JEDEC standard, 8-lead SOIC_N
pad layout. This layout supports signal distribution, loopback, and loads referenced to the VDDx or GNDx planes, as well as
optimal bypass capacitance. Signal sources can be conducted to the board through header pins or through edge mounted Sub-
miniature Version A (SMA) connectors (SMA connectors must
be ordered separately).
Screw terminal blocks on the evaluation board provide power connections. The board includes 200 mil (5.08 mm) header positions for compatibility with active probes (probe header pins must be ordered separately). The EVAL-ADuM1250EBZ evaluation board can be used to evaluate the ADuM1250, ADuM1251, ADuM2250, and ADuM2251 devices. Although the pad layout on the EVAL- ADuM1250EBZ does not support the ADuM2250 and ADuM2251 16-lead SOIC_W and SOIC_IC packages, these devices are functionally equivalent to the ADuM1250 and ADuM1251, respectively, for the purposes of evaluation. They differ only by package and isolation capabilities. Therefore, evaluations of the ADuM1250 and ADuM1251 can be applied to the ADuM2250 and ADuM2251 as well.
The evaluation board follows best printed circuit board (PCB) design practices for 4-layer boards, including a full power and ground plane on each side of the isolation barrier. No other electromagnetic interference (EMI) or noise mitigation design features are included on this evaluation board. For high speed operation, or when ultralow emissions are required, refer to the AN-1109 Application Note for additional evaluation board layout techniques.
Full specifications for the ADuM1250 are available in the ADuM1250 data sheet, which must be consulted in conjunction with User Guide UG-1100 when working with the evaluation board.
- Access to two bidirectional data channels
- Multiple connection options
- Support for active probes
- Provisions for cable terminations
- Support for PCB edge mounted coaxial connectors
- Easy configuration