ایزولاتور ایزولاتور دیجیتال

Product Attributes

Introduction

The ADuM4151/ADuM4152/ADuM4153 are 7-channel, SPIsolator™ digital isolators optimized for isolated serial peripheral interfaces (SPIs). Based on 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. These channels operate with 14 ns propagation delay and 1 ns jitter to optimize timing for SPI. The ADuM4151/ADuM4152/ADuM4153 isolators also provide three additional independent low data rate isolation channels in three different channel direction combinations. 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.

Features

• Supports up to 17 MHz SPI clock speed
• 4 high speed, low propagation delay, SPI signal isolation channels
• Three 250 kbps data channels
• 20-lead SOIC_IC package with 8.3 mm creepage
• High temperature operation: 125°C
• High common-mode transient immunity: >25 kV/μs
• Safety and regulatory approvals UL recognition per UL 1577 5000 V rms for 1 minute SOIC long package CSA Component Acceptance Notice 5A VDE certificate of conformity DIN V VDE V 0884-10 (VDE V 0884-10):2006-12 Maximum working insulation voltage (VIORM): 849 V peak

Applications

• Industrial programmable logic controllers (PLCs)
• Sensor isolation