The ADUM3154 series 7-channel SPIsolator? Digital Isolator optimized for a serial peripheral interface (SPI) that includes support for up to four slave devices. Based on the Analog Devices, Inc., iCoupler? chip scale transformer technology, the low propagation delay and jitter in the CLK, MO/SI, MI/SO and SS SPI bus signals support SPI clock rates of up to 17MHz. The ADuM3154 isolator also provides a slave select multiplexing system that allows up to four slave devices to be serviced from one isolator. When a target slave is selected, the slave select signal propagates to the desired output with low propagation delay, allowing tight timing control. The isolated SSx is addressed through a 250kbps low speed, 2-channel address bus, allowing the target slave device to be changed in as little as 2.5μs.
- Supports up to 17MHz SPI clock speed
- 4 High speed, low propagation delay, SPI signal isolation channels
- Supports up to 4 slave devices
- >25kV/μs High common-mode transient immunity
传感与仪器, 工业
