ADI ADUM3154ARSZ

The ADuM3154 is an SPIsolator digital isolator optimized for a serial peripheral interface (SPI) that includes support for up to four slave devices. Based on 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 17 MHz. 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 250 kbps low speed, 2-channel address bus, allowing the target slave device to be changed in as little as 2.5 μs.

• Supports up to 17 MHz SPI clock speed
• 4 high speed, low propagation delay, SPI signal isolatio channels
• Supports up to 4 slave devices
• 20-lead SSOP package with 5.1 mm creepage
• High temperature operation: 125°C
• High common-mode transient immunity: >25 kV/μs
• Safety and regulatory approvals UL recognition per UL 1577 3750 V rms for 1 minute CSA Component Acceptance Notice 5A VDE certificate of conformity DIN V VDE V 0884-10 (VDE V 0884-10):2006-12 V10RM = 565 V peak

• Industrial programmable logic controllers (PLCs)
• Sensor isolation