6ES7621-1AD00-0AE3,6ES7621-1AD00-0AE3
6ES7621-1AD00-0AE36ES7621-1AD00-0AE3
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模擬電路當(dāng)前呈現(xiàn)出三個突出趨勢:高性能分立器件、模數(shù)混合和SOC (System on Chip系統(tǒng)芯片)。
模擬集成電路種類繁多,其性能要求也各不相同。
追求更高的性能將是模擬器件未來主要的發(fā)展方向[7]。凌特公司中國區(qū)域業(yè)務(wù)經(jīng)理李錦華簡單地將其歸納為“三升三降”,即速度、精度、效率上升,
而功耗、尺寸與外圍元件數(shù)下降。
對放大器而言,將向更高速度、更低噪聲、更大動態(tài)范圍等方向發(fā)展;對數(shù)據(jù)轉(zhuǎn)換器而言,將向更高速度、更高精度等方向發(fā)展;在信號處理、射頻電路、電源管理等領(lǐng)域,將向更高精度、速度與效率方向發(fā)展,同時功耗、尺寸及外圍元件數(shù)量則將不斷下降。以手機(jī)為例,消費者要求更清晰的語音、更加絢麗的屏幕,同時還要有更長的待機(jī)時間,這些都給模擬器件制造商提出了更高的要求,也為設(shè)計人員帶來了更大的挑戰(zhàn)。分立模擬電路可以把這些性能做得很高。例如,Maxim轉(zhuǎn)換速率已經(jīng)做到了2GSPS,
而采用SOC (系統(tǒng)芯片)是做不到這種性能的。
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ly listedsquare d 1200 amp power-style switchboard cat# 396915
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