{"id":35038,"date":"2026-03-22T09:00:33","date_gmt":"2026-03-22T00:00:33","guid":{"rendered":"https:\/\/blog.agentsoft.co.kr\/index.php\/2026\/03\/22\/35038\/"},"modified":"2026-03-22T09:00:33","modified_gmt":"2026-03-22T00:00:33","slug":"%ec%a0%84%ec%9e%90%ea%b3%b5%ed%95%99%ec%8b%a4%ed%97%98-21%ec%9e%a5-%ec%b0%a8%eb%8f%99-%ec%a6%9d%ed%8f%ad%ea%b8%b0-%ec%8b%ac%ed%99%94-%ec%8b%a4%ed%97%98-a-%ea%b2%b0%ea%b3%bc%eb%b3%b4%ea%b3%a0%ec%84%9c","status":"publish","type":"post","link":"https:\/\/blog.agentsoft.co.kr\/index.php\/2026\/03\/22\/35038\/","title":{"rendered":"\uc804\uc790\uacf5\ud559\uc2e4\ud5d8 21\uc7a5 \ucc28\ub3d9 \uc99d\ud3ed\uae30 \uc2ec\ud654 \uc2e4\ud5d8 A+ \uacb0\uacfc\ubcf4\uace0\uc11c"},"content":{"rendered":"

<\/p>\n

\ubaa9\ucc28<\/strong><\/p>\n

1. \uc2e4\ud5d8 \uac1c\uc694
\n2. \uc2e4\ud5d8 \uc808\ucc28 \ubc0f \uacb0\uacfc \ubcf4\uace0
\n3. \uace0\ucc30 \uc0ac\ud56d
\n4. \uac80\ud1a0 \ubc0f \ub290\ub080\uc810<\/p>\n

\ubcf8\ubb38\ub0b4\uc6a9<\/strong><\/p>\n

\uc2e4\ud5d8 \uac1c\uc694
\n-\ud2b8\ub79c\uc9c0\uc2a4\ud130\ub97c \uc774\uc6a9\ud55c \ub2a5\ub3d9 \ubd80\ud558\uc758 \uacbd\uc6b0 \uc800\ud56d \ubd80\ud558\uc5d0 \ube44\ud574 \uacf5\uc815\uc5d0 \ub300\ud55c \ubcc0\ud654\ub7c9\uc774 \uc801\uace0, \uc815\ud655\ud55c \uc800\ud56d\uc744 \uc704\ud55c \ucd94\uac00 \ube44\uc6a9\uc774 \ub4e4\uc9c0 \uc54a\ub294\ub2e4\ub294 \uc7a5\uc810\uc774 \uc788\ub2e4. \uc774 \uc2e4\ud5d8\uc5d0\uc11c\ub294 \ub2a5\ub3d9 \ubd80\ud558\ub97c \uc0ac\uc6a9\ud55c \ucc28\ub3d9 \uc99d\ud3ed\uae30(differential amplifier)\ub97c \uad6c\uc131\ud558\uc5ec, \uc804\uc555 \uc774\ub4dd\uacfc CMRR\uc744 \uce21\uc815\ud558\uace0\uc790 \ud55c\ub2e4.<\/p>\n

<\uc911\ub7b5><\/p>\n

\uace0\ucc30 \uc0ac\ud56d
\n(1) \ucd9c\ub825\uc744 \ucc28\ub3d9\uc73c\ub85c \ubcfc \ub54c\uc5d0\ub3c4 \uacf5\ud1b5 \ubaa8\ub4dc \uc804\uc555 \uc774\ub4dd\uc774 \ubc1c\uc0dd\ud558\ub294 \uc6d0\uc778\uc744 \ubd84\uc11d\ud558\uc2dc\uc624.: \ucc28\ub3d9 \uc99d\ud3ed\uae30\ub97c \ucc28\ub3d9\uc73c\ub85c \ubd84\uc11d\ud558\ub354\ub77c\ub3c4 MOSFET M1, M2\uc758 mismatch\ub85c \uc778\ud55c gm\uc758 mismatch, M1, M2\uc758 \ub4dc\ub808\uc778 \uc800\ud56d 3k\u03a9\uc758 mismatch\ub85c \uc778\ud574 \ucd9c\ub825\uc758 \uacf5\ud1b5 \ubaa8\ub4dc \uc804\uc555\uc774 \ubc1c\uc0dd\ud558\uc600\uace0, \uc774\ub85c \uc778\ud574 \uacf5\ud1b5 \ubaa8\ub4dc \uc804\uc555 \uc774\ub4dd Acm\uc774 \ubc1c\uc0dd\ud558\uac8c \ub41c \uac83\uc774\ub2e4.
\n(2) \uacf5\ud1b5 \ubaa8\ub4dc \uc81c\uac70\ube44(CMRR)\uc758 \uc774\ub860\uce58\uc640 \uc2e4\ud5d8 \uacb0\uacfc\uac00 \ucc28\uc774\ub098 \ub098\ub294 \uc6d0\uc778\uc744 \ubd84\uc11d\ud558\uc2dc\uc624.
\n: \uc774\ub860\uc801\uc73c\ub85c\ub294 \uacf5\ud1b5 \ubaa8\ub4dc \uc804\uc555 \uc774\ub4dd Acm=0[V\/V]\uac00 \ub418\uc5b4 \uacf5\ud1b5 \ubaa8\ub4dc \uc81c\uac70\ube44 CMRR=|Ad\/Acm|=\u221e\uac00 \ub418\uc5b4\uc57c \ud558\uc9c0\ub9cc, MOSFET M1, M2\uc758 mismatch\ub85c \uc778\ud55c gm\uc758 mismatch, M1, M2\uc758 \ub4dc\ub808\uc778 \uc800\ud56d 3k\u03a9\uc758 mismatch\ub85c \uc778\ud574 \ucd9c\ub825\uc758 \uacf5\ud1b5 \ubaa8\ub4dc \uc804\uc555\uc774 \ubc1c\uc0dd\ud558\uc600\uace0, \uc774\ub85c \uc778\ud574 \uacf5\ud1b5 \ubaa8\ub4dc \uc804\uc555 \uc774\ub4dd Acm\uc774 \ubc1c\uc0dd\ud558\uc5ec 0\uc774 \uc544\ub2c8\uae30 \ub54c\ubb38\uc5d0 \uacf5\ud1b5 \ubaa8\ub4dc \uc81c\uac70\ube44 CMRR=|Ad\/Acm|<\u221e\uac00 \ub418\uc5b4 \uc2e4\ud5d8 \uacb0\uacfc\uc640 \ucc28\uc774\uac00 \ubc1c\uc0dd\ud55c \uac83\uc774\ub2e4.\n\n(3) \uacf5\ud1b5 \ubaa8\ub4dc \uc81c\uac70\ube44(CMRR)\ub97c \ud5a5\uc0c1\uc2dc\ud0ac \uc218 \uc788\ub294 \ubc29\uc548\uc744 \uc124\uba85\ud558\uc2dc\uc624.\n: MOSFET M1, M2\uc758 mismatch\ub85c \uc778\ud55c gm\uc758 mismatch, M1, M2\uc758 \ub4dc\ub808\uc778 \uc800\ud56d 3k\u03a9\uc758 mismatch\ub97c \uc904\uc5ec Acm\uc744 \uc904\uc774\uace0 \ucd9c\ub825\uc758 \ucc28\ub3d9 \ubaa8\ub4dc \uc804\uc555 \uc774\ub4dd Ad\ub97c \uc99d\uac00\uc2dc\ud0a4\uba74 \uacf5\ud1b5 \ubaa8\ub4dc \uc81c\uac70\ube44 CMRR=|Ad\/Acm|\uc744 \ud5a5\uc0c1\uc2dc\ud0ac \uc218 \uc788\ub2e4.\n\n
\ucd9c\ucc98 : \ud574\ud53c\ucea0\ud37c\uc2a4<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"

\ubaa9\ucc28 1. \uc2e4\ud5d8 \uac1c\uc694 2. \uc2e4\ud5d8 \uc808\ucc28 \ubc0f \uacb0\uacfc \ubcf4\uace0 3. \uace0\ucc30 \uc0ac\ud56d 4. \uac80\ud1a0 \ubc0f \ub290\ub080\uc810 \ubcf8\ubb38\ub0b4\uc6a9 \uc2e4\ud5d8 \uac1c\uc694 -\ud2b8\ub79c\uc9c0\uc2a4\ud130\ub97c \uc774\uc6a9\ud55c \ub2a5\ub3d9 \ubd80\ud558\uc758 \uacbd\uc6b0 \uc800\ud56d \ubd80\ud558\uc5d0 \ube44\ud574 \uacf5\uc815\uc5d0 \ub300\ud55c \ubcc0\ud654\ub7c9\uc774 \uc801\uace0, \uc815\ud655\ud55c \uc800\ud56d\uc744 \uc704\ud55c \ucd94\uac00 \ube44\uc6a9\uc774 \ub4e4\uc9c0 \uc54a\ub294\ub2e4\ub294 \uc7a5\uc810\uc774 \uc788\ub2e4. \uc774 \uc2e4\ud5d8\uc5d0\uc11c\ub294 \ub2a5\ub3d9 \ubd80\ud558\ub97c \uc0ac\uc6a9\ud55c \ucc28\ub3d9 \uc99d\ud3ed\uae30(differential amplifier)\ub97c \uad6c\uc131\ud558\uc5ec, \uc804\uc555 \uc774\ub4dd\uacfc CMRR\uc744 \uce21\uc815\ud558\uace0\uc790 \ud55c\ub2e4. […]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[5243,30456,15721,32931,31301,35235],"class_list":["post-35038","post","type-post","status-publish","format-standard","hentry","category-uncategorized","tag-ce--","tag-30456","tag-15721","tag-32931","tag-31301","tag-35235"],"_links":{"self":[{"href":"https:\/\/blog.agentsoft.co.kr\/index.php\/wp-json\/wp\/v2\/posts\/35038","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/blog.agentsoft.co.kr\/index.php\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/blog.agentsoft.co.kr\/index.php\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/blog.agentsoft.co.kr\/index.php\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/blog.agentsoft.co.kr\/index.php\/wp-json\/wp\/v2\/comments?post=35038"}],"version-history":[{"count":0,"href":"https:\/\/blog.agentsoft.co.kr\/index.php\/wp-json\/wp\/v2\/posts\/35038\/revisions"}],"wp:attachment":[{"href":"https:\/\/blog.agentsoft.co.kr\/index.php\/wp-json\/wp\/v2\/media?parent=35038"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/blog.agentsoft.co.kr\/index.php\/wp-json\/wp\/v2\/categories?post=35038"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/blog.agentsoft.co.kr\/index.php\/wp-json\/wp\/v2\/tags?post=35038"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}