鏅傞枔锛�2025/5/6 12:57:36
闁辫畝锛�19
OPA1654 鏄竴娆句綆鍣伈銆佷綆澶辩湡鐨勯洐閫氶亾閬嬬畻鏀惧ぇ鍣紝灏堢偤楂樹繚鐪熼煶闋诲拰绮惧瘑淇¤櫉铏曠悊鎳夌敤瑷▓銆傝┎鍣ㄤ欢閲囩敤鍏堥�茬殑BiFET宸ヨ棟鍒堕��锛屽叿鏈夊嚭鑹茬殑鍕曟厠(t脿i)鎬ц兘鍜岀洿娴佺簿搴�锛岃兘澶犳彁渚涘崜瓒婄殑闊宠唱鍜屼俊铏熷畬鏁存��銆�
銆�銆�OPA1654 鐨勮几鍏ュ櫔鑱插瘑搴﹂潪甯镐綆锛屽儏鐐�1.1 nV/鈭欻z锛屽湪瀵牷甯惰寖鍦嶅収淇濇寔妤典綆鐨勫け鐪熸按骞炽�傚叾杌屽埌杌岃几鍑烘摵骞呯壒鎬т娇鍏堕潪甯搁仼鍚堥﹨鍕曢珮闃绘姉璨犺級鎴栭渶瑕佸ぇ鍕曟厠(t脿i)鑼冨湇鐨勬噳鐢ㄥ牬鏅�銆�
渚涢浕闆诲锛毬�2.25 V 鑷� 卤18 V
銆�銆�澧炵泭甯跺绌嶏細10 MHz
銆�銆�澹撴摵鐜囷細7.5 V/渭s
銆�銆�杓稿叆鍋忕疆闆绘祦锛�2 pA
銆�銆�杓稿叆鍣伈闆诲锛�1.1 nV/鈭欻z
銆�銆�鍏辨ā鎶戝埗姣�(CMRR)锛�105 dB
銆�銆�闆绘簮鎶戝埗姣�(PSRR)锛�105 dB
銆�銆�闈滄厠(t脿i)闆绘祦锛�3.6 mA/閫氶亾
OPA1654 鐨勪富瑕佺壒鎬у寘鎷細
銆�銆�1. 妤典綆鐨勮几鍏ュ櫔鑱插瘑搴︼紝閬╁悎楂樹繚鐪熼煶闋诲拰鍏朵粬灏嶅櫔鑱叉晱鎰熺殑鎳夌敤銆�
銆�銆�2. 杌屽埌杌岃几鍑烘摵骞�锛屾敮鎸佹洿澶у嫊鎱�(t脿i)鑼冨湇鍜屾洿闈堟椿鐨勮矤杓夐﹨鍕曘��
銆�銆�3. 楂樺叡妯℃姂鍒舵瘮鍜岄浕婧愭姂鍒舵瘮锛岀⒑淇濆湪寰╅洔闆绘簮鐠�(hu谩n)澧冧笅鐨勭┅(w臎n)瀹氭��銆�
銆�銆�4. 闆欓�氶亾瑷▓锛屼究浜庡湪绔嬮珨鑱茬郴绲�(t菕ng)鎴栧叾浠栧閫氶亾鎳夌敤涓娇鐢ㄣ��
銆�銆�5. 寤ｆ硾鐨勫伐浣滈浕澹撹寖鍦�锛岄仼鎳夊绋緵闆婚渶姹傘��
銆�銆�6. 鍑鸿壊鐨勭窔鎬у害鍜屼綆澶辩湡鎬ц兘锛屼繚璀夐珮璩噺淇¤櫉铏曠悊鏁堟灉銆�
銆�銆�閫欎簺鐗归粸浣� OPA1654 鎴愮偤楂樻�ц兘闊抽牷瑷倷銆侀啱(y墨)鐧傚剙鍣�銆佹脯瑭︽脯閲忚缃瓑闋樺煙鐨勭悊鎯抽伕鎿囥��
OPA1654 甯哥敤浜庝互涓嬮牁鍩燂細
銆�銆�1. 闊抽牷淇¤櫉铏曠悊锛屽鑰虫鏀惧ぇ鍣�銆佹湁婧愰煶绠卞拰灏堟キ(y猫)闊抽牷瑷倷銆�
銆�銆�2. 鏁�(sh霉)鎿�(j霉)閲囬泦绯荤当(t菕ng)锛屽鏁�(sh霉)鎿�(j霉)杞夋彌鍣ㄧ珐娌�銆佸偝鎰熷櫒淇¤櫉瑾跨悊銆�
銆�銆�3. 閱�(y墨)鐧傞浕瀛愯ō鍌�锛屽瓒呰伈娉㈡帴鏀跺櫒鍜屽績闆诲湒姗熴��
銆�銆�4. 娓│鑸囨脯閲忓剙鍣�锛屽绀烘尝鍣ㄥ墠绔斁澶у櫒鍜屼俊铏熺櫦(f膩)鐢熷櫒銆�
銆�銆�5. 宸ユキ(y猫)鑷嫊鍖栨帶鍒朵腑鐨勭簿瀵嗕俊铏熸斁澶у拰瑾跨瘈(ji茅)銆�
銆�銆�鐢变簬鍏朵綆鍣伈鍜岄珮绮惧害鐗规�э紝OPA1654 鍦ㄤ换浣曢渶瑕侀珮璩噺淇¤櫉鏀惧ぇ鐨勫牬鍚堥兘鑳借〃鐝�(xi脿n)鍑鸿壊銆�
OPA1656, OPA2134, AD8620
