產(chǎn)品概述: iso 40xx系列產(chǎn)品實現(xiàn)傳感器和主機之間的信號采集,用以檢測模擬信號或控制遠程設備。通過軟件的配置,可用于多種傳感器類型,包括:模擬信號輸入,模擬信號輸出,和數(shù)字信號輸入/輸出(i/o)?!? iso 40xx系列產(chǎn)品可應用在 rs-232/485總線工業(yè)自動化控制系統(tǒng),溫度信號測量、監(jiān)視和控制,小信號的測量以及工業(yè)現(xiàn)場信號隔離及長線傳輸?shù)鹊?。產(chǎn)品包括電源隔離、信號隔離及線性化,a/d轉換和rs-485串行通信。每個串口最多可接256只 iso 40xx系列模塊,通訊方式采用ascii碼、modbus通訊協(xié)議,其指令集兼容于adam模塊,波特率可由代碼設置,能與其他廠家的控制模塊掛在同一rs-485總線上,便于計算機編程。
Abstract: Class D amplifiers are typically very efficient, making them ideal candidates for portable applications that require longbattery life and low thermal dissipation. However, electromagnetic interference (EMI) is an issue that commonly accompanies theClass D switching topology. Active-emissions limiting reduces radiated emissions and enables "filterless" operation, allowingdesigners to create small, efficient portable applications with low EMI.
Recent advances in low voltage silicon germaniumand BiCMOS processes have allowed the design andproduction of very high speed amplifi ers. Because theprocesses are low voltage, most of the amplifi er designshave incorporated differential inputs and outputs to regainand maximize total output signal swing. Since many lowvoltageapplications are single-ended, the questions arise,“How can I use a differential I/O amplifi er in a single-endedapplication?” and “What are the implications of suchuse?” This Design Note addresses some of the practicalimplications and demonstrates specifi c single-endedapplications using the 3GHz gain-bandwidth LTC6406differential I/O amplifi er.