The ADUM3150 series 6-channel SPIsolator™ Digital Isolator optimized for isolated serial peripheral interfaces (SPIs). Based on the Analog Devices, Inc., iCoupler® chip scale transformer technology, the low propagation delay in the CLK, MO/SI, MI/SO and SS SPI bus signals supports SPI clock rates of up to 17MHz. These channels operate with 14ns propagation delay and 1ns jitter to optimize timing for SPI. The ADuM3150 isolator also provides two additional independent low data rate isolation channels, one channel in each direction. Data in the slow channels is sampled and serialized for a 250kbps data rate with 2.5µs of jitter. It supports a delay clock output on the master side of the device. This output can be used with an additional clocked port on the master to support 40MHz clock performance.
● Supports up to 40MHz SPI clock speed in delay clock mode
● Supports up to 17MHz SPI clock speed in 4-wire mode
● 4 High speed, low propagation delay, SPI signal isolation channels
● 2 Data channels at 250kbps
● Delayed compensation clock line
● >25kV/µs High common-mode transient immunity
