看到的一个用CMOS运算放大器芯片SGM358做的电路 请问下面这个电路图SGM358UIA和UIB是什么意思？指的...
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\u8be5\u88c5\u7f6e\u91c7\u75289\uff0d12V\u76f4\u6d41\u7535\u6e90\u4f9b\u7535\uff0c\u7531T \u964d\u538b\uff0c\u5168\u6865U\u6574\u6d41\uff0cC10 \u6ee4\u6ce2\uff0c\u68c0\u6d4b\u7535\u8def\u91c7\u7528IC5 78L06\u4f9b\u7535\u3002\u672c\u88c5\u7f6e\u4ea4\u76f4\u6d41\u4e24\u7528\uff0c\u81ea\u52a8\u65e0\u95f4\u65ad\u8f6c\u6362\u3002
\u6269\u5c55\u8d44\u6599
LM358\u6709\u7740\u5185\u90e8\u9891\u7387\u8865\u507f\uff0c\u76f4\u6d41\u7535\u538b\u589e\u76ca\u9ad8(\u7ea6100dB)\uff0c\u5355\u4f4d\u589e\u76ca\u9891\u5e26\u5bbd(\u7ea61MHz)\uff0c\u7535\u6e90\u7535\u538b\u8303\u56f4\u5bbd\uff1a\u5355\u7535\u6e90(3\u201430V)\uff0c\u53cc\u7535\u6e90(\u00b11.5 \u4e00\u00b115V)\uff0c\u538b\u6446\u7387(0.3V/us)\uff0c\u4f4e\u529f\u8017\u7535\u6d41\uff0c\u9002\u5408\u4e8e\u7535\u6c60\u4f9b\u7535\u3002
\u4f4e\u8f93\u5165\u504f\u6d41\uff0c\u4f4e\u8f93\u5165\u5931\u8c03\u7535\u538b\u548c\u5931\u8c03\u7535\u6d41\uff0c\u5171\u6a21\u8f93\u5165\u7535\u538b\u8303\u56f4\u5bbd\uff0c\u5305\u62ec\u63a5\u5730\uff0c\u5dee\u6a21\u8f93\u5165\u7535\u538b\u8303\u56f4\u5bbd\uff0c\u7b49\u4e8e\u7535\u6e90\u7535\u538b\u8303\u56f4\uff0c\u8f93\u51fa\u7535\u538b\u6446\u5e45\u5927(0 \u81f3Vcc-1.5V)\u7b49\u7279\u6027\u3002
IC1 \u91c7\u7528\u8fdb\u53e3\u5668\u4ef6Q74\uff0c\u6ce2\u957f\u4e3a9\uff0d10um\u3002IC2\u91c7\u7528\u8fd0\u653eLM358\uff0c\u5177\u6709\u9ad8\u589e\u76ca\u3001\u4f4e\u529f\u8017\u3002IC3\u3001IC4 \u4e3a\u53cc\u7535\u538b\u6bd4\u8f83\u5668LM393\uff0c\u4f4e\u529f\u8017\u3001\u4f4e\u5931\u8c03\u7535\u538b\u3002\u5176\u4e2dC2\u3001C5\u4e00\u5b9a\u8981\u7528\u6f0f\u7535\u6781\u5c0f\u7684\u94bd\u7535\u5bb9\uff0c\u5426\u5219\u8c03\u8bd5\u4f1a\u53d7\u5230\u5f71\u54cd\u3002R12\u662f\u8c03\u6574\u7075\u654f\u5ea6\u7684\u5173\u952e\u5143\u4ef6\uff0c\u5e94\u9009\u7528\u7ebf\u6027\u9ad8\u7cbe\u5ea6\u5bc6\u5c01\u578b\u3002
\u5236\u4f5c\u65f6\uff0c\u5728IC1 \u4f20\u611f\u5668\u7684\u7aef\u9762\u524d\u5b89\u88c5\u83f2\u6d85\u5c14\u900f\u955c\uff0c\u56e0\u4e3a\u4eba\u4f53\u7684\u6d3b\u52a8\u9891\u7387\u8303\u56f4\u4e3a0.1\uff0d10Hz\uff0c\u9700\u8981\u7528\u83f2\u6d85\u5c14\u900f\u955c\u5bf9\u4eba\u4f53\u6d3b\u52a8\u9891\u7387\u500d\u589e\u3002
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\u672c\u673a\u9759\u6001\u5de5\u4f5c\u7535\u6d41\u7ea610mA\uff0c\u63a5\u901a\u7535\u6e90\u7ea61\u5206\u949f\u540e\u8fdb\u5165\u5b88\u5019\u72b6\u6001\uff0c\u53ea\u8981\u6709\u4eba\u8fdb\u5165\u76d1\u89c6\u533a\u4fbf\u4f1a\u62a5\u8b66\uff0c\u4eba\u79bb\u5f00\u540e\u7ea61 \u5206\u949f\u505c\u6b62\u62a5\u8b66\u3002\u5982\u679c\u5c06\u8baf\u54cd\u5668\u6539\u4e3a\u7ee7\u7535\u5668\u9a71\u52a8\u5176\u5b83\u88c5\u7f6e\u5373\u4f5c\u4e3a\u5176\u5b83\u63a7\u5236\u7528\u3002
\u53c2\u8003\u8d44\u6599\u6765\u6e90\uff1a\u767e\u5ea6\u767e\u79d1-LM358
\u4e00\u5757\u82af\u7247\uff0c\u56e0\u4e3a358\u91cc\u67092\u7ec4\u8fd0\u653e\u3002
看起来是检测2脚有没有负电压的，如果没有负电压。输出就是低电平，有负电压就输出高电平。358就是一个标准运放，运放的使用是不会考虑输入电流的，而且，绝大部分的运放电路是不会考虑电流的。除非是那种少之又少的电流反馈电路。0.1U是一般的IC都会用到滤波电容，22R是为匹配输入阻抗的，电阻的选择就看你输出信号的电路阻抗。目测是电子滤波器
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绛旓細1. 鏁板瓧闆嗘垚鐢佃矾锛圛C锛夛細CMOS鎶鏈槸鏁板瓧闆嗘垚鐢佃矾鐨勪富瑕佸埗閫犲伐鑹轰箣涓銆侰MOS鍣ㄤ欢鍙互鐢ㄤ簬鍒堕犲悇绉嶉昏緫闂ㄣ佸瓨鍌ㄥ櫒銆佸鐞嗗櫒绛夋暟瀛楃數璺紝鐢ㄤ簬璁＄畻鏈恒侀氫俊璁惧銆佹秷璐圭數瀛愮瓑棰嗗煙銆2. 妯℃嫙闆嗘垚鐢佃矾锛圛C锛夛細CMOS鎶鏈篃鍙互鐢ㄤ簬鍒堕犳ā鎷熼泦鎴愮數璺紝渚嬪杩愮畻鏀惧ぇ鍣銆佹护娉㈠櫒銆佹ā鎷熶俊鍙峰鐞嗙數璺瓑銆侰MOS鍣ㄤ欢鐨勪綆鍔熻楀拰楂橀泦鎴...
绛旓細鏈
绛旓細鐞嗘兂杩愮畻鏀惧ぇ鍣宸ヤ綔鍦ㄧ嚎鎬у尯鏃舵湁涓や釜閲嶈鐗圭偣锛氫竴鏄樊妯¤緭鍏ョ數鍘嬬浉绛夛紝绉颁负铏氱煭锛涗簩鏄緭鍏ョ數娴侀浂锛岀О涓鸿櫄鐭傚疄闄杩愭斁鐨寮鐜數鍘嬪鐩婇潪甯稿ぇ锛屽彲浠ヨ繎浼艰涓篈=鈭炲拰e=0銆傛鏃讹紝鏈夐檺澧炵泭杩愭斁妯″瀷鍙互杩涗竴姝ョ畝鍖栦负鐞嗘兂杩愭斁妯″瀷銆傝秼杩戜簬闆剁殑杈撳嚭闃绘姉(Zout=0)锛氱悊鎯宠繍绠楁斁澶у櫒鐨勮緭鍑虹鏄涓涓瀹岀編鐨勭數鍘嬫簮锛屾棤...
