ایزولاتور ایزولاتور دیجیتال

Product Attributes

Introduction

A digital isolator based on iCoupler technology. Combining high speed CMOS and monolithic air core transformer technology, this isolation component provides outstanding performance characteristics superior to alternatives, such as optocoupler devices. Configured as a pin-compatible replacement for existing high speed optocouplers, it supports data rates as high as 25 Mbps and 100 Mbps. It operates with a voltage supply ranging from 3.0 V to 5.5 V, boasts a propagation delay of <18 ns and edge asymmetry of <2 ns, and is compatible with temperatures up to 125°C. It operates at very low power, less than 0.9 mA of quiescent current (sum of both sides), and a dynamic current of less than 160 μA per Mbps of data rate. Unlike other optocoupler alternatives, it provides dc correctness with a patented refresh feature that continuously updates the output signal. It is offered in three grades. The ADuM1100AR and ADuM1100BR can operate up to a maximum temperature of 105°C and support data rates up to 25 Mbps and 100 Mbps, respectively. The ADuM1100UR can operate up to a maximum temperature of 125°C and supports data rates up to 100 Mbps.

Features

• High data rate: dc to 100 Mbps (NRZ)
• Compatible with 3.3 V and 5.0 V operation/level translation
• 125°C maximum operating temperature
• Low power operation: 5 V operation 1.0 mA maximum @ 1 Mbps, 4.5 mA maximum @ 25 Mbps, 16.8 mA maximum @ 100 Mbps; 3.3 V operation 0.4 mA maximum @ 1 Mbps, 3.5 mA maximum @ 25 Mbps, 7.1 mA maximum @ 50 Mbps
• 8-lead SOIC_N package (RoHS compliant version available)
• High common-mode transient immunity: >25 kV/μs
• Safety and regulatory approvals: UL recognized 2500 V rms for 1 minute per UL 1577, CSA Component Acceptance Notice 5A, VDE Certificate of Conformity DIN V VDE V 0884-10 (VDE V 0884-10):2006-12, V10RM = 560 V peak

Applications

• Digital field bus isolation
• Opto-isolator replacement
• Computer peripheral interface
• Microprocessor system interface
• General instrumentation and data acquisition applications