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闁辫畝锛�2
OPA4990鏄竴娆鹃珮鎬ц兘鐨勫洓閫氶亾閬嬬畻鏀惧ぇ鍣紝灏堢偤浣庡櫔鑱插拰楂樼簿搴︽噳鐢ㄨ�岃ō瑷�銆傝┎鍣ㄤ欢閲囩敤鍏堥�茬殑BiFET宸ヨ棟鍒堕�狅紝鍏锋湁闈炲父浣庣殑杓稿叆闆诲鍣伈鍜岄浕娴佸櫔鑱�锛岄潪甯搁仼鍚堢敤浜庨煶闋�銆侀啱(y墨)鐧傝ō鍌�銆佹脯瑭︽脯閲忎互鍙婂叾浠栧皪淇¤櫉瀹屾暣鎬ц姹傝純楂樼殑鍫村悎銆�
銆�銆�OPA4990鐨勪緵闆昏寖鍦嶅寤�锛屾敮鎸佸柈闆绘簮鎴栭洐闆绘簮鎿嶄綔锛岃兘澶犲湪卤2.25V鑷陈�18V涔嬮枔姝ｅ父宸ヤ綔銆傛澶�锛屽畠閭勫叿鍌欒粚鍒拌粚杓稿嚭鎿哄箙鑳藉姏锛屽彲鎻愪緵鏇村ぇ鐨勫嫊鎱�(t脿i)鑼冨湇鍜屾洿楂樼殑闈堟椿鎬с��
渚涢浕闆诲锛毬�2.25V鑷陈�18V
銆�銆�甯跺锛�22MHz
銆�銆�澧炵泭甯跺绌嶏細22MHz
銆�銆�澹撴摵鐜囷細8.5V/渭s
銆�銆�杓稿叆鍋忕疆闆绘祦锛�2pA
銆�銆�杓稿叆闆诲鍣伈瀵嗗害锛�1.1nV/鈭欻z
銆�銆�鍏辨ā鎶戝埗姣旓細110dB
銆�銆�闆绘簮闆绘祦锛�3.6mA/閫氶亾
銆�銆�宸ヤ綔婧害鑼冨湇锛�-40掳C鑷�+125掳C
OPA4990鐨勪富瑕佺壒鎬у寘鎷細
銆�銆�1. 妤典綆鐨勮几鍏ュ櫔鑱�锛岄仼鐢ㄤ簬楂樹繚鐪熼煶闋诲拰鍏朵粬绮惧瘑淇¤櫉铏曠悊鎳夌敤銆�
銆�銆�2. 杌屽埌杌岃几鍑烘摵骞�锛岃兘澶犲厖鍒嗗埄鐢ㄤ緵闆昏粚鐨勫嫊鎱�(t脿i)鑼冨湇銆�
銆�銆�3. 瀵浕婧愰浕澹撹寖鍦�锛岄仼鍚堝绋浕婧愮挵(hu谩n)澧冧笅鐨勬搷浣溿��
銆�銆�4. 楂樺叡妯℃姂鍒舵瘮锛圕MRR锛夊拰闆绘簮鎶戝埗姣旓紙PSRR锛�锛岀⒑淇濆湪鎯″姡姊濅欢涓嬩粛鑳戒繚鎸佸崜瓒婃�ц兘銆�
銆�銆�5. 灏忓瀷灏佽閬搁爡锛屾湁鍔╀簬绡�(ji茅)鐪侀浕璺澘绌洪枔銆�
銆�銆�6. 宸ユキ(y猫)绱氬拰鎿村睍婧害鑼冨湇鐗堟湰锛岄仼鎳夊悇绋噳鐢ㄥ牬鏅殑闇�姹傘��
OPA4990寤ｆ硾鎳夌敤浜庝互涓嬮牁鍩燂細
銆�銆�1. 闊抽牷铏曠悊瑷倷锛屽灏堟キ(y猫)闊抽熆绯荤当(t菕ng)銆侀亥鍏嬮ⅷ鍓嶇疆鏀惧ぇ鍣ㄧ瓑銆�
銆�銆�2. 閱�(y墨)鐧傞浕瀛愶紝渚嬪蹇冮浕鍦栵紙ECG锛�銆佽秴鑱叉尝鍎�鍣ㄤ腑鐨勪俊铏熻鐞�銆�
銆�銆�3. 鏁告摎閲囬泦绯荤当(t菕ng)涓殑鍌虫劅鍣ㄦ帴鍙ｅ拰淇¤櫉鏀惧ぇ銆�
銆�銆�4. 娓│鑸囨脯閲忚ō鍌�锛屽绀烘尝鍣ㄥ墠绔斁澶у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熼張璺祫浠�銆�
銆�銆�6. 鍏夊妾㈡脯鍜屽厜绾栭�氫俊绯荤当(t菕ng)涓殑浣庡櫔鑱叉斁澶с��
OPA4991, OPA4992, LMH6629
