ADuM744x是基于ADI公司
iCoupler®技术的
Four-channel digital isolator系列。这些隔离器结合了高速CMOS和单片空芯变压器技术,可提供出色的性能特性,优于光耦器件和其它集成式耦合器。
The ADuM7444x family of quad-channel 1kV digital isolation devices are available in a small 16-pin QSOP package. While most quad isolators are packaged in a 16-pin SOIC wide-body package, the ADuM7444x saves nearly 70% of board space while still withstanding high isolation voltages and meeting regulatory requirements such as UL and CSA standards (pending). In addition to saving space, the ADuM744x is priced less than 2.5kV or 5kV isolators for applications where only basic isolation is required.
Like many of Analog Devices' isolator products, this product family consumes only one-tenth to one-sixth of comparable isolators at data rates up to 10 Mbps. In addition to low power consumption, all models of the ADuM744x have very low pulse-width distortion (
The ADuM744x isolator provides four independent isolated channels with a variety of channel configurations with three data rates (see ordering guide) up to 25 Mbps. All models have a supply voltage range of 3.0V to 5.5V on either end, providing compatibility with low-voltage systems and enabling voltage conversion through isolation barriers. In addition, the default output is high logic state for all models without input power.
应用
通用多通道隔离
SPI接口/Data Converter Isolation
RS-232/RS-422/RS-485收发器
工业现场总线隔离