# 請幫忙解釋一下下面名詞的意義...拜託很急

Quiescent Power Supply Current,

PSRR , CMRR

Shutdown Voltage , Closed Loop Gain

ESD Protection (HBM, 1.5KΩ and 100pF in Series)

ESD Protection (MM, 200pF, no Resistor)

Thermal Resistance θJC,

Operating Junction Temperature

Rating

Quiescent Power Supply Current=靜態消耗電流﹕就是IC不工作(輸入端接地, 輸出端開路)的情況下所消耗的電流量

PSRR=Power Supply Rejection Ratio =電源漣波拒斥比﹔就是電源本身的漣波傳到輸出端的比例﹔比如電源的漣波為0.5Vp-p﹐反映到輸出端的漣波為0.1Vp-p則PSRR=0.1/0.5=0.2﹐通常都以對數(dB)表示

CMRR =Common Mode Rejection Ratio =共模拒斥比﹕將差動放大器的兩個輸入端相互連接後加上一個正弦波信號﹐則輸出端產生的正弦波幅與輸入端正弦波幅之比﹐算法同上。

Shutdown Voltage=過電壓保護(自動停止工作)的臨界電壓值

Closed Loop Gain=閉路增益

ESD Protection (HBM, 1.5KΩ and 100pF in Series)

=Electro-static Discharge(Human Body Model, 1.5KΩ and 100pF in Series)=靜電放電保護(人體模形﹐以一個100pF電容器儲存靜電, 輸出端串聯一個1.5KΩ電阻)﹕一種靜電測試的條件設定

ESD Protection (MM, 200pF, no Resistor)

=Electro-static Discharge(Machine Model, 200pF, no Resistor)

=靜電放電保護(機械模型﹐以200pF電容器儲存靜電﹐不加串聯電阻)

Thermal Resistance θJC﹕PN結合面與電晶體或IC包裝(外殼)之間的熱傳導阻抗係數(C/W)

Operating Junction Temperature﹕PN結合面的工作溫度翻圍

2007-05-23 21:37:03 補充：

更正：溫度翻圍 -->溫度範圍