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1、ICL7107 ? 1 ICL7107 ?199.9mV ? 1.? !? !? !? !?#$%*?AB?CDE?F.GH:;*?AB?CDE?F.GH:;*?AB?CDE?F.GH:;*?AB?CDE?F.GH? IJ9?K)IJ9?K)IJ9?K)IJ9?K)?L?M-NOP?L?M-NOP?L?M-NOP?L?M-NOP?QR?QR?QR?QR? 2 S?S?S?S? 40 ?TTTT1 ?U?U?U?U 40 ?VVW#?VVW#?VVW#?VVW#X?X?X?X? 2.YHZ?YHZ?YHZ?YHZ? ? ? ? ? ? DC5V ? ? 36 ?_?_?_?_? a? a? a?
2、 a? 100mV? 26 ?b?c?b?c?b?c?b?c? ?a?b? ?a?b? ?a?b? ?a?b?* dddd3V SSSS dddd5 V e?. fe?. fe?. fe?. f?g?hi? ?g?hi? ?g?hi? ?g?hi? ?/hi?j?/hi?j?/hi?j?/hi?j? 31 ?k%lm?k%lm?k%lm?k%lm? 01lm01lm01lm01lm 199.9mV ?*?no*?no*?no*?no?012pqr012pqr012pqr012pqr?stststst“0”k%lmk%lmk%lmk%lm?1-u?v1-u?v1-u?v1-u?v? 3.wx?w
3、x?wx?wx? 27,28,29 ?yza?yza?yza?yza?p?p?p?p? 0.22uF,47K,0.47uF |?|?|?|? Cyz?F?Cyz?F?Cyz?F?Cyz?F? hi?hi?hi?hi? ? 33 ? 34 ?q?q?q?q? 104 ? /hi?/hi?/hi?/hi? 4.wxqr?wxqr?wxqr?wxqr?cr?cr?cr?cr? 21 ?r?r?r?r? 32 ?k%r?k%r?k%r?k%r? 30 ?_ r?r?r?r? 35 ?f?,?f?,?f?,?f?,? 4 C?eqrC?eqrC?eqrC?eqr?*?*?*?*?TTTT? ?|?|?|
4、?|?XXXX?30 ? 35 ?80ihqr?q?B?80ihqr?q?B?80ihqr?q?B?80ihqr?q?B?dddddddd ?h?h?h?h? 5.b?b?b?b?b?c01?“q?b?c01?“q?b?c01?“q?b?c01?“q? 7905 ?g?g?g?g? ? b?c? b?c? b?c? b?c? ?f?fi fl -? ?f?fi fl -? ?f?fi fl -? ?f?fi fl -?C?C?C?C +5V ?801?801?801?801? f?-?f?-?f?-?f?-? ICL7660 ? NE555 ? ?”zt?”zt?”zt?”zt? ffff ?
5、 NPN ?|?|?|?|?C?k%!?C?k%!?C?k%!?C?k%!?2?2?2?2? 38 ?k%?k%?k%?k% q?Cq?Cq?Cq?C 20K dddd56K ?|q?|q?|q?|q?“B”? *?*?*?*?“C”?q?C?|?q?C?|?q?C?|?q?C?| TTTT.9?.9?.9?.9?XXXX ?C?C?C?C?TTTT?!?!?!?!XXXX?* f?F?* f?F?* f?F?* f?F?“C”?.?.?.?. 2.4V dddd 2.8V .?*?*?*?*?“C”?!?k%?!?k%?!?k%?!?k%?2?Ck%?2?Ck%?2?Ck%?2?Ck%? 2
6、 4u7 ? 2 ? 1N4148 ? ?t?t?t?t? 01?b?01?b?01?b?01?b? ICL7107 ? 26 ? ?C?C?C?C?*?*?*?* dddd3.2V ? dddd4.2V K?K?K?K? 6.?B?q?ae? f?B?q?ae? f?B?q?ae? f?B?q?ae? f?/?/?/?/?“?”?“nnnn”? ?8?01 f?F9?8?01 f?F9?8?01 f?F9?8?01 f?F9?C?M?|?C?M?|?C?M?|?C?M?| X1 ?01?01?01?01? ? 50mV,100mV,190 mV ?2pQRlm?2pQRlm?2pQRlm?2
7、pQRlm? ICL7107 ? 31 ? ?#?#?#?#? 50.0,100.0,190.0 ?a?a?a?a?:?:?:?:? 2 dddd3 C?U_?;?U_?;?U_?;? mV ?Z?Z?Z?Z?/?/?/?/? ?*?C?*?C?*?C?*?C?;?;?;?;?8?98?98?98?9? 8.ICL7107 /?f?*f?*f?*f?* 1.999V ? 27,28,29 ?yza?yza?yza?yza? ?.?.?.?. 0.22uF,470K,0.047uF |?|?|?|?2222 36 ?_?_?_?_? 1.000V 801?801?801?801? *1.999V
8、 ?9999? 9.?*:;?*:;?*:;?p?p?p?p?dddd?;?;?;-?|?|?|?|?|?|?|?|, ?D?D?D?D?.?/?|?|?|?|?p?z?p?z?p?z?p?z,? ? ? ? 010101010000?2222”3333ssss?44440000565656567777;?;?;?;? ?89:89:89:89:. ;f?f?f?f? ICL7107 ? 3 /?:;/?:;/?:;?YZYZYZYZ?*?;?*?;?*?;?*?X?X?X?X ?lm?lm?lm?lm? 0?200.0mV ?k%?k%?k%?k%?l?l?l?l? 0?200.0mV ?“
9、?“?“?“ k%k%k%k%?k%k%k%k%?9?9?9?9?h?h?h?h?WXWXWXWX!?g?g?g?g? ? ? ? ?!F?!F?!F?!F ?9?9?9?9?;?;?;?;?rrrr AC dddd DC ?k%?k%?k%?k%?rRrRrRrR?#?u?u?u?u ?|lm?|lm?|lm?|lm?!?!?!?!?h?h?h?h?SS?SS?SS?SS? 2mV +?*FFFF?&?&?&?&? ?xxxxDDDD? *89898989?G?G?G?G?ffff“j?j?j?j?”?k%h?j?k%h?j?k%h?j?k%h?j ?,?,?,?,?“?lmlmlmlm”?
10、8?8?8?8?9?9?9?9?01010101?k%?k%?k%?k%? ?C?|yz?C?|yz?C?|yz?C?|yz?&?Clm?/h&?Clm?/h&?Clm?/h&?Clm?/heeee?qr?qr?qr?qr?FFFF .?.?.?.?$?$?$?$?“?”lm?9lm?9lm?9lm?9? ICL7107 ? 8 ICL7107 ? 9 ?lm?lm?lm?lm?6666444401010101“?,?,?,?,?C2?C2?C2?C2 4?20mA ? .&?.&?.&?.&?p?j?8?p?j?8?p?j?8?p?j?8? 4mA ?h?h?h?h? 0mA ?=lmj?.
11、lmj?.lmj?.lmj?. 4 mA ? ? IN- BBBB?s?s?s?s? ?fi fl fi fl fi fl fi fl IN+ JJJJ? 4mA ?k%?k%?k%?k%?&?&?&?& ?lm?lm?lm?lm?0,88889999 4mA lm?.lm?.lm?.lm?. 0 ?k%?k%?k%?k%? ?9?9?9?9 20mA ?#&?#&?#&?#&?WWWW=?lm?.?lm?.?lm?.?lm?. 20-4=16mA ?C?C?C?C 16mA * 62.5R ?|B?|B?|B?|B?8?&?lmk%8?&?lmk%8?&?lmk%8?&?lmk%?2&?_2
12、&?_2&?_2&?_ ?U?U?U?U 16*62.5?1000mV WWWW?8?8?8?8? 1000 C&C&C&C&? ? 1.&?&?&?&?(&?)?XXXX? ?9?9?9?9? ?801801801801”?L?r?L?r?L?r?L?r?8i8i8i8i?8i?8i?8i?8i?OOOO?r?r?r?r? pppp? 2.&?lm|&?lm|&?lm|&?lm|01010101? 1000 ?g?g?g?g?C|?C|?C|?C|SSSSSSSS?#?#?#?# lmk%?lmk%?lmk%?lmk%?U?f?U?f?U?f?U?f?p?p?p?p?“?|?|?|?|”?K?K?K?K?rRrRrRrR?hi2?hi2?hi2?hi2 ?WXWXWXWX?lm?lm?lm?lm?1111stststst? 3.&?&?&?&?(&/?2k%2k%2k% 2k%?fl ?fl?fl?fl ? 5.&?&?&?&?(&?)?H?H?H?H? 4?74?74?74?7?0000? ?CCCC? ICL7107 ? 10