FEATURES
► Supports up to 17 MHz SPI clock speed ► 4 high speed, low propagation delay, SPI signal isolation chan- nels ► Three 250 kbps data channels ► 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 1577 ► 3750 V rms for 1 minute ► IEC/EN/CSA 62368-1 ► DIN EN IEC 60747-17 (VDE 0884-17) ► VIORM = 565 V peak APPLICATIONS
► Industrial programmable logic controllers (PLCs) ► Sensor isolation GENERAL DESCRIPTION
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 17 MHz. Data in the slow channels is sampled and serialized for a 250 kbps data rate with up to 2.5 µs of jitter in the low speed channels. FUNCTIONAL BLOCK DIAGRAMS Figure 1. ADuM3151 Functional Block Diagram Figure 2. ADuM3152 Functional Block Diagram Figure 3. ADuM3153 Functional Block Diagram 1 Protected by U.S.
Analog Devices
