運算放(fang)(fang)(fang)大(da)(da)器(qi)同相放(fang)(fang)(fang)大(da)(da)電(dian)路如果(guo)平(ping)衡電(dian)阻不對(dui)有什么后(hou)(hou)果(guo)？(1)同相反相端不平(ping)衡，輸(shu)(shu)入(ru)為(wei)0時(shi)也會有輸(shu)(shu)出(chu)，輸(shu)(shu)入(ru)信號時(shi)輸(shu)(shu)出(chu)值總比理論輸(shu)(shu)出(chu)值大(da)(da)(或小(xiao))一個(ge)(ge)(ge)(ge)(ge)固定的(de)(de)(de)(de)(de)數。(2)輸(shu)(shu)入(ru)偏(pian)置電(dian)流(liu)引起的(de)(de)(de)(de)(de)誤差不能(neng)被(bei)消(xiao)除。運算放(fang)(fang)(fang)大(da)(da)器(qi)的(de)(de)(de)(de)(de)放(fang)(fang)(fang)大(da)(da)原理是(shi)什么？運算放(fang)(fang)(fang)大(da)(da)器(qi)是(shi)一個(ge)(ge)(ge)(ge)(ge)差動(dong)放(fang)(fang)(fang)大(da)(da)器(qi)。就(jiu)(jiu)是(shi)兩個(ge)(ge)(ge)(ge)(ge)三(san)(san)(san)極管(guan)(guan)背(bei)靠背(bei)連著(zhu)。共同分(fen)(fen)擔一個(ge)(ge)(ge)(ge)(ge)橫流(liu)源的(de)(de)(de)(de)(de)電(dian)流(liu)。三(san)(san)(san)極管(guan)(guan)一個(ge)(ge)(ge)(ge)(ge)是(shi)運放(fang)(fang)(fang)的(de)(de)(de)(de)(de)正(zheng)向(xiang)輸(shu)(shu)入(ru)，一個(ge)(ge)(ge)(ge)(ge)是(shi)反向(xiang)輸(shu)(shu)入(ru)。正(zheng)向(xiang)輸(shu)(shu)入(ru)的(de)(de)(de)(de)(de)三(san)(san)(san)極管(guan)(guan)放(fang)(fang)(fang)大(da)(da)后(hou)(hou)送到一個(ge)(ge)(ge)(ge)(ge)功率放(fang)(fang)(fang)大(da)(da)電(dian)路放(fang)(fang)(fang)大(da)(da)輸(shu)(shu)出(chu)。這樣，如果(guo)正(zheng)向(xiang)輸(shu)(shu)入(ru)端的(de)(de)(de)(de)(de)電(dian)壓(ya)升高，那(nei)么輸(shu)(shu)出(chu)自(zi)然也變大(da)(da)了(le)。如果(guo)反相輸(shu)(shu)入(ru)端電(dian)壓(ya)升高，因(yin)為(wei)反相三(san)(san)(san)級管(guan)(guan)和正(zheng)向(xiang)三(san)(san)(san)級管(guan)(guan)共同分(fen)(fen)擔了(le)一個(ge)(ge)(ge)(ge)(ge)恒流(liu)源。反向(xiang)三(san)(san)(san)級管(guan)(guan)電(dian)流(liu)大(da)(da)了(le)，那(nei)正(zheng)向(xiang)的(de)(de)(de)(de)(de)就(jiu)(jiu)要小(xiao)，所以輸(shu)(shu)出(chu)就(jiu)(jiu)會降(jiang)低(di)。因(yin)此叫反向(xiang)輸(shu)(shu)入(ru)。當(dang)然，電(dian)路內(nei)部還有很多其它的(de)(de)(de)(de)(de)功能(neng)部件，但(dan)就(jiu)(jiu)是(shi)這樣的(de)(de)(de)(de)(de)。高阻運放(fang)(fang)(fang)特點(dian)是(shi)差模輸(shu)(shu)入(ru)阻抗非常高,輸(shu)(shu)入(ru)偏(pian)置電(dian)流(liu)非常小(xiao),一般rid>（109~1012）W,IIB為(wei)幾皮安到幾十皮安。中國臺灣運放(fang)(fang)(fang)/比較器(qi)

除了(le)注意(yi)(yi)對運(yun)放(fang)PSRR或CMRR參數的(de)(de)(de)選擇和加(jia)強運(yun)放(fang)供電(dian)(dian)(dian)(dian)(dian)(dian)(dian)去(qu)耦(ou)（如采(cai)用RC去(qu)耦(ou)）外，在開(kai)關(guan)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)源(yuan)(yuan)供電(dian)(dian)(dian)(dian)(dian)(dian)(dian)設計中，還應(ying)注意(yi)(yi)如下(xia)一些(xie)方面：電(dian)(dian)(dian)(dian)(dian)(dian)(dian)源(yuan)(yuan)中的(de)(de)(de)噪聲(sheng)可能通(tong)過(guo)基準源(yuan)(yuan)或PCB的(de)(de)(de)漏電(dian)(dian)(dian)(dian)(dian)(dian)(dian)直(zhi)接(jie)(jie)耦(ou)合(he)到放(fang)大(da)器的(de)(de)(de)輸入(ru)(ru)端(duan)。要注意(yi)(yi)對電(dian)(dian)(dian)(dian)(dian)(dian)(dian)壓(ya)基準源(yuan)(yuan)輸出的(de)(de)(de)濾(lv)波(bo)(bo)，對于PCB漏電(dian)(dian)(dian)(dian)(dian)(dian)(dian)，可在信號輸入(ru)(ru)引線(xian)(xian)(xian)(xian)與(yu)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)源(yuan)(yuan)走(zou)線(xian)(xian)(xian)(xian)間(jian)加(jia)地(di)(di)(di)(di)線(xian)(xian)(xian)(xian)防護。噪聲(sheng)可能通(tong)過(guo)PCB走(zou)線(xian)(xian)(xian)(xian)之間(jian)的(de)(de)(de)分(fen)(fen)布電(dian)(dian)(dian)(dian)(dian)(dian)(dian)容(rong)直(zhi)接(jie)(jie)耦(ou)合(he)到放(fang)大(da)器輸入(ru)(ru)端(duan)，造成干擾。在PCB布線(xian)(xian)(xian)(xian)時(shi)，要注意(yi)(yi)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)源(yuan)(yuan)線(xian)(xian)(xian)(xian)與(yu)弱信號線(xian)(xian)(xian)(xian)不要貼(tie)行走(zou)線(xian)(xian)(xian)(xian)，線(xian)(xian)(xian)(xian)凈距大(da)于線(xian)(xian)(xian)(xian)寬的(de)(de)(de)3倍(bei)（3W原則(ze)），并在電(dian)(dian)(dian)(dian)(dian)(dian)(dian)源(yuan)(yuan)線(xian)(xian)(xian)(xian)或數字(zi)信號線(xian)(xian)(xian)(xian)與(yu)模擬小信號線(xian)(xian)(xian)(xian)之間(jian)加(jia)地(di)(di)(di)(di)線(xian)(xian)(xian)(xian)隔離。接(jie)(jie)地(di)(di)(di)(di)處理不當，噪聲(sheng)通(tong)過(guo)公共阻抗(kang)影響敏感(gan)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)路(lu)部(bu)分(fen)(fen)。為了(le)防止公共阻抗(kang)將電(dian)(dian)(dian)(dian)(dian)(dian)(dian)源(yuan)(yuan)噪聲(sheng)引入(ru)(ru)信號回(hui)路(lu)，要注意(yi)(yi)如下(xia)幾點：接(jie)(jie)地(di)(di)(di)(di)上避免帶(dai)噪聲(sheng)的(de)(de)(de)大(da)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)流(liu)流(liu)過(guo)前(qian)(qian)級小信號地(di)(di)(di)(di)；單點接(jie)(jie)地(di)(di)(di)(di)，電(dian)(dian)(dian)(dian)(dian)(dian)(dian)源(yuan)(yuan)、模擬、數字(zi)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)路(lu)分(fen)(fen)開(kai)接(jie)(jie)地(di)(di)(di)(di)；布板使用地(di)(di)(di)(di)平面層，小化地(di)(di)(di)(di)線(xian)(xian)(xian)(xian)阻抗(kang)；開(kai)關(guan)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)源(yuan)(yuan)輸出從一個濾(lv)波(bo)(bo)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)容(rong)的(de)(de)(de)地(di)(di)(di)(di)端(duan)引出電(dian)(dian)(dian)(dian)(dian)(dian)(dian)源(yuan)(yuan)地(di)(di)(di)(di)，避免從濾(lv)波(bo)(bo)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)感(gan)前(qian)(qian)的(de)(de)(de)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)容(rong)的(de)(de)(de)地(di)(di)(di)(di)端(duan)引出。天津(jin)TSV911低噪聲(sheng)運(yun)放(fang)/比較器價格普通(tong)運(yun)算放(fang)大(da)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)路(lu)構成一般類似，精密(mi)放(fang)大(da)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)路(lu)會多一些(xie)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)源(yuan)(yuan)去(qu)耦(ou)，濾(lv)波(bo)(bo)等(deng)特殊設計的(de)(de)(de)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)路(lu)。

我(wo)們經常看到很多非常經典的(de)(de)(de)運算(suan)放(fang)(fang)大(da)器應用圖(tu)集，但(dan)(dan)是(shi)(shi)(shi)(shi)這(zhe)(zhe)些(xie)(xie)應用都建立在雙電(dian)源(yuan)(yuan)(yuan)的(de)(de)(de)基礎上，很多時候(hou)，電(dian)路的(de)(de)(de)設計者(zhe)必須用單(dan)電(dian)源(yuan)(yuan)(yuan)供(gong)電(dian)，但(dan)(dan)是(shi)(shi)(shi)(shi)他們不(bu)知道(dao)該如(ru)何將(jiang)雙電(dian)源(yuan)(yuan)(yuan)的(de)(de)(de)電(dian)路轉換(huan)成單(dan)電(dian)源(yuan)(yuan)(yuan)電(dian)路。所(suo)有的(de)(de)(de)運算(suan)放(fang)(fang)大(da)器都有兩(liang)個(ge)電(dian)源(yuan)(yuan)(yuan)引(yin)腳(jiao)，一般在資料中，它們的(de)(de)(de)標(biao)識是(shi)(shi)(shi)(shi)VCC＋和(he)VCC－，但(dan)(dan)是(shi)(shi)(shi)(shi)有些(xie)(xie)時候(hou)它們的(de)(de)(de)標(biao)識是(shi)(shi)(shi)(shi)VCC＋和(he)GND。這(zhe)(zhe)是(shi)(shi)(shi)(shi)因為有些(xie)(xie)數據手(shou)冊(ce)的(de)(de)(de)作(zuo)者(zhe)企圖(tu)將(jiang)這(zhe)(zhe)種(zhong)標(biao)識的(de)(de)(de)差異(yi)作(zuo)為單(dan)電(dian)源(yuan)(yuan)(yuan)運放(fang)(fang)和(he)雙電(dian)源(yuan)(yuan)(yuan)運放(fang)(fang)的(de)(de)(de)區別(bie)。但(dan)(dan)是(shi)(shi)(shi)(shi)，這(zhe)(zhe)并不(bu)是(shi)(shi)(shi)(shi)說他們就一定要那樣使用――他們可能可以工作(zuo)在其(qi)他的(de)(de)(de)電(dian)壓下。在運放(fang)(fang)不(bu)是(shi)(shi)(shi)(shi)按默認電(dian)壓供(gong)電(dian)的(de)(de)(de)時候(hou)，需要參考運放(fang)(fang)的(de)(de)(de)數據手(shou)冊(ce)，特別(bie)是(shi)(shi)(shi)(shi)比(bi)較大(da)供(gong)電(dian)電(dian)壓和(he)電(dian)壓擺動說明。

電(dian)(dian)(dian)源(yuan)(yuan)(yuan)抑(yi)制比(bi)(bi)(PSRR)是輸入電(dian)(dian)(dian)源(yuan)(yuan)(yuan)變(bian)化(hua)量(以伏(fu)為(wei)(wei)(wei)單(dan)位)與轉換(huan)器(qi)(qi)輸出變(bian)化(hua)量(以伏(fu)為(wei)(wei)(wei)單(dan)位)的(de)(de)(de)比(bi)(bi)值(zhi)(zhi)(zhi),常用(yong)分(fen)(fen)貝表示。對于高質量的(de)(de)(de)D/A轉換(huan)器(qi)(qi),要(yao)求開(kai)關電(dian)(dian)(dian)路(lu)及(ji)運(yun)算(suan)放大(da)器(qi)(qi)所用(yong)的(de)(de)(de)電(dian)(dian)(dian)源(yuan)(yuan)(yuan)電(dian)(dian)(dian)壓發生變(bian)化(hua)時(shi),對輸出的(de)(de)(de)電(dian)(dian)(dian)壓影響極小.通常把滿量程電(dian)(dian)(dian)壓變(bian)化(hua)的(de)(de)(de)百分(fen)(fen)數(shu)與電(dian)(dian)(dian)源(yuan)(yuan)(yuan)電(dian)(dian)(dian)壓變(bian)化(hua)的(de)(de)(de)百分(fen)(fen)數(shu)之比(bi)(bi)稱(cheng)為(wei)(wei)(wei)電(dian)(dian)(dian)源(yuan)(yuan)(yuan)抑(yi)制比(bi)(bi).電(dian)(dian)(dian)源(yuan)(yuan)(yuan)抑(yi)制比(bi)(bi)可分(fen)(fen)為(wei)(wei)(wei)交(jiao)流電(dian)(dian)(dian)源(yuan)(yuan)(yuan)抑(yi)制比(bi)(bi)和直流電(dian)(dian)(dian)源(yuan)(yuan)(yuan)抑(yi)制比(bi)(bi),其(qi)具體意思如下(xia).交(jiao)流電(dian)(dian)(dian)源(yuan)(yuan)(yuan)抑(yi)制比(bi)(bi)(ACPSR)先(xian)在標稱(cheng)電(dian)(dian)(dian)源(yuan)(yuan)(yuan)電(dian)(dian)(dian)壓(5V)的(de)(de)(de)情(qing)況下(xia),讀(du)(du)取(qu)一個(ge)(ge)(ge)測(ce)(ce)量值(zhi)(zhi)(zhi),然后在電(dian)(dian)(dian)源(yuan)(yuan)(yuan)電(dian)(dian)(dian)壓上疊加一個(ge)(ge)(ge)頻率為(wei)(wei)(wei)100HZ,有效值(zhi)(zhi)(zhi)為(wei)(wei)(wei)200mV的(de)(de)(de)信(xin)號,在相同的(de)(de)(de)輸入信(xin)號電(dian)(dian)(dian)平(ping)下(xia),讀(du)(du)取(qu)第(di)二(er)個(ge)(ge)(ge)測(ce)(ce)量值(zhi)(zhi)(zhi),按(an)測(ce)(ce)量誤(wu)差公式"百分(fen)(fen)誤(wu)差=（第(di)二(er)測(ce)(ce)量值(zhi)(zhi)(zhi)-測(ce)(ce)量值(zhi)(zhi)(zhi)）/測(ce)(ce)量值(zhi)(zhi)(zhi)"計算(suan)得到(dao)的(de)(de)(de)百分(fen)(fen)比(bi)(bi)誤(wu)差即(ji)為(wei)(wei)(wei)交(jiao)流電(dian)(dian)(dian)源(yuan)(yuan)(yuan)抑(yi)制比(bi)(bi).直流電(dian)(dian)(dian)源(yuan)(yuan)(yuan)抑(yi)制比(bi)(bi)(DCPSR)一般(ban)用(yong)優值(zhi)(zhi)(zhi)系(xi)數(shu)K來衡量集成運(yun)放的(de)(de)(de)優良程度,其(qi)定(ding)義(yi)為(wei)(wei)(wei)：單(dan)位為(wei)(wei)(wei)V/ms,其(qi)值(zhi)(zhi)(zhi)越(yue)大(da),表明(ming)運(yun)放的(de)(de)(de)交(jiao)流特性越(yue)好。

這個(ge)參數(shu)反(fan)映了電(dian)源(yuan)(yuan)電(dian)壓(ya)(ya)出(chu)現一(yi)定變化量時輸(shu)(shu)(shu)入(ru)失衡(heng)電(dian)壓(ya)(ya)相應產生(sheng)多大的(de)(de)(de)(de)(de)變化量.在規定為1V的(de)(de)(de)(de)(de)電(dian)源(yuan)(yuan)電(dian)壓(ya)(ya)改變量除以(yi)按微伏計的(de)(de)(de)(de)(de)輸(shu)(shu)(shu)入(ru)失衡(heng)電(dian)壓(ya)(ya)量.輸(shu)(shu)(shu)出(chu)電(dian)壓(ya)(ya)誤差(cha)(cha)的(de)(de)(de)(de)(de)計算(suan)(suan)方法(fa)如同電(dian)壓(ya)(ya)失衡(heng)與漂(piao)移的(de)(de)(de)(de)(de)計算(suan)(suan)方法(fa).外(wai)部電(dian)源(yuan)(yuan)的(de)(de)(de)(de)(de)調整(zheng)率(lv)會以(yi)電(dian)源(yuan)(yuan)抑制比(bi)的(de)(de)(de)(de)(de)形式直接(jie)轉變成運(yun)算(suan)(suan)放大器網絡的(de)(de)(de)(de)(de)輸(shu)(shu)(shu)出(chu)誤差(cha)(cha).PSRR，就(jiu)是PowerSupplyRejectionRatio的(de)(de)(de)(de)(de)縮寫，中文(wen)含意為“電(dian)源(yuan)(yuan)紋波抑制比(bi)”。也就(jiu)是說,PSRR表示(shi)把輸(shu)(shu)(shu)入(ru)與電(dian)源(yuan)(yuan)視為兩個(ge)的(de)(de)(de)(de)(de)信(xin)(xin)號(hao)源(yuan)(yuan)時，所得到(dao)(dao)的(de)(de)(de)(de)(de)兩個(ge)電(dian)壓(ya)(ya)增益的(de)(de)(de)(de)(de)比(bi)值(zhi)。基本(ben)計算(suan)(suan)公式為：PSRR=20log[(Ripple(in)/Ripple(out))]PSRR的(de)(de)(de)(de)(de)單位(wei)為分貝(bei)(dB)，采(cai)用(yong)對(dui)數(shu)比(bi)值(zhi)。從(cong)上面的(de)(de)(de)(de)(de)式子可以(yi)看出(chu)，影響(xiang)輸(shu)(shu)(shu)出(chu)信(xin)(xin)號(hao)的(de)(de)(de)(de)(de)因素除了電(dian)路本(ben)身(shen)之外(wai)，還受(shou)到(dao)(dao)了供電(dian)電(dian)源(yuan)(yuan)的(de)(de)(de)(de)(de)影響(xiang)。PSRR是一(yi)個(ge)用(yong)來描述輸(shu)(shu)(shu)出(chu)信(xin)(xin)號(hao)受(shou)電(dian)源(yuan)(yuan)影響(xiang)的(de)(de)(de)(de)(de)量，PSRR越(yue)大，輸(shu)(shu)(shu)出(chu)信(xin)(xin)號(hao)受(shou)到(dao)(dao)電(dian)源(yuan)(yuan)的(de)(de)(de)(de)(de)影響(xiang)越(yue)小。精(jing)密運(yun)算(suan)(suan)放大電(dian)路與普通(tong)運(yun)算(suan)(suan)放大電(dian)路的(de)(de)(de)(de)(de)區別？浙江SGM8141/SGM8142納安級低功耗運(yun)放運(yun)放/比(bi)較器庫存(cun)

高壓大(da)電(dian)流集成運(yun)(yun)算放(fang)大(da)器外部不需附加任(ren)何電(dian)路,即可(ke)輸(shu)出高電(dian)壓和大(da)電(dian)流。中國臺(tai)灣運(yun)(yun)放(fang)/比較器

同相比(bi)例運算放大器(qi)，在反饋(kui)電(dian)(dian)阻(zu)上并一個(ge)電(dian)(dian)容(rong)的(de)(de)作用(yong)是什么？(1)反饋(kui)電(dian)(dian)阻(zu)并電(dian)(dian)容(rong)形成一個(ge)高通(tong)濾波器(qi),局(ju)部高頻率(lv)放大特(te)別厲害。(2)防(fang)止自(zi)激。在運算放大器(qi)輸(shu)(shu)入端(duan)上拉電(dian)(dian)容(rong)，下拉電(dian)(dian)阻(zu)能起到什么作用(yong)？是為了獲得(de)正反饋(kui)和(he)負(fu)(fu)反饋(kui)的(de)(de)問題，這要看具體連接。比(bi)如我把現在輸(shu)(shu)入電(dian)(dian)壓(ya)(ya)信(xin)號，輸(shu)(shu)出(chu)電(dian)(dian)壓(ya)(ya)信(xin)號，再在輸(shu)(shu)出(chu)端(duan)取出(chu)一根線(xian)連到輸(shu)(shu)入段(duan)，那么由于上面的(de)(de)那個(ge)電(dian)(dian)阻(zu)，部分輸(shu)(shu)出(chu)信(xin)號通(tong)過(guo)該電(dian)(dian)阻(zu)后獲得(de)一個(ge)電(dian)(dian)壓(ya)(ya)值，對輸(shu)(shu)入的(de)(de)電(dian)(dian)壓(ya)(ya)進(jin)行分流，使得(de)輸(shu)(shu)入電(dian)(dian)壓(ya)(ya)變(bian)小，這就是一個(ge)負(fu)(fu)反饋(kui)。因(yin)為信(xin)號源輸(shu)(shu)出(chu)的(de)(de)信(xin)號總是不變(bian)的(de)(de)，通(tong)過(guo)負(fu)(fu)反饋(kui)可以對輸(shu)(shu)出(chu)的(de)(de)信(xin)號進(jin)行矯(jiao)正。中國臺灣運放/比(bi)較器(qi)

互(hu)勤(qin)(深圳(zhen))科(ke)(ke)技(ji)(ji)(ji)有限公(gong)司總部位于光明街道東周社區(qu)高新(xin)路研(yan)(yan)祥(xiang)科(ke)(ke)技(ji)(ji)(ji)工(gong)業園二棟研(yan)(yan)發(fa)(fa)大樓(lou)1007，是一(yi)家經(jing)營(ying)(ying)范圍(wei)包括(kuo)一(yi)般經(jing)營(ying)(ying)項(xiang)(xiang)目是：電(dian)子(zi)產(chan)(chan)品(pin)、電(dian)子(zi)元(yuan)器件、半導體芯(xin)片(pian)(pian)、系統集成的(de)(de)銷售；電(dian)池、電(dian)池管理(li)系統、電(dian)子(zi)類板卡，PCBA、電(dian)子(zi)產(chan)(chan)品(pin)的(de)(de)技(ji)(ji)(ji)術(shu)開發(fa)(fa)、技(ji)(ji)(ji)術(shu)咨詢、技(ji)(ji)(ji)術(shu)支撐(cheng)、研(yan)(yan)發(fa)(fa)、設計、銷售。(法(fa)律、行(xing)(xing)政(zheng)法(fa)規(gui)、決定規(gui)定在登記前(qian)須(xu)經(jing)批(pi)準的(de)(de)項(xiang)(xiang)目除外）的(de)(de)公(gong)司。互(hu)勤(qin)科(ke)(ke)技(ji)(ji)(ji)擁(yong)有一(yi)支經(jing)驗豐富、技(ji)(ji)(ji)術(shu)創新(xin)的(de)(de)專業研(yan)(yan)發(fa)(fa)團(tuan)隊(dui)，以高度的(de)(de)專注和執著為(wei)客戶(hu)提供(gong)電(dian)源(yuan)芯(xin)片(pian)(pian)，MOS管，MCU方(fang)案，必易芯(xin)片(pian)(pian)。互(hu)勤(qin)科(ke)(ke)技(ji)(ji)(ji)不斷(duan)開拓(tuo)創新(xin)，追(zhui)求(qiu)出色，以技(ji)(ji)(ji)術(shu)為(wei)先導，以產(chan)(chan)品(pin)為(wei)平臺，以應(ying)用(yong)為(wei)重點，以服(fu)務(wu)為(wei)保證，不斷(duan)為(wei)客戶(hu)創造更(geng)高價值(zhi)，提供(gong)更(geng)優服(fu)務(wu)。互(hu)勤(qin)科(ke)(ke)技(ji)(ji)(ji)始終(zhong)關注電(dian)子(zi)元(yuan)器件行(xing)(xing)業。滿(man)足市(shi)場需(xu)求(qiu)，提高產(chan)(chan)品(pin)價值(zhi)，是我們前(qian)行(xing)(xing)的(de)(de)力量。

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