Analog Devices Inc. ADuM4160 USB 数字隔离器
Analog Devices ADuM4160 USB 数字隔离器是一款USB端口隔离器，采用了iCoupler® 技术。ADI ADuM4160 将高速CMOS工艺与单片空芯变压器技术相结合，可提供优异的工作性能，并且很容易与低速和全速USB兼容外设集成。ADuM4160 结构既可以检测数据流向，又能够控制输出缓冲的状态。数据流向根据一个个分组确定。ADI ADuM4160 将基于边沿检测的iCoupler技术与内部逻辑结合使用，可实现透明、易于配置、面对上游的端口隔离器。隔离上游端口具有电路简单、电源管理和操作稳健等优势。这款隔离器的传播延迟与标准集线器和电缆的传播延迟相当。它可以采用任一侧的3.1V至5.5V电源电压供电，并能在内部将该电压调节至信号电平，从而与VBUS直接相连。ADuM4160 对上拉电阻进行隔离控制，以便外设能控制连接时序。
ADI ADuM4160 uses edge-detection-based iCoupler technology in conjunction with internal logic to implement a transparent, easily configured upstream-facing port isolator. Isolating an upstream-facing port provides several advantages, including simpler power management and more robust operation.
The isolator has a propagation delay comparable to that of a standard hub and cable. It operates with the supply voltage on either side ranging from 3.1V to 5.5V, allowing connection directly to VBUS by internally regulating the voltage to the signaling level. ADuM4160 provides isolated control of the pull-up resistor to allow the peripheral to control connection timing.
特性
- Fully USB 2.0 compliant
- 1.5Mbps and 12Mbps Low and full speed data rates
- Bidirectional communication
- Short-circuit protection for xD+ and xD- lines
- +105°C high temperature operation
- 3.3V and 5V (dual mode power configuration) operation
- Class 3A contact ESD performance per ANSI/ESD STM5.1-2007
- >25kV/μs high common-mode transient immunity
应用
- USB peripheral isolation
- Isolated USB Hub
- Medical
视频
Functional Block Diagram
发布日期: 2013-05-03
| 更新日期: 2026-02-05