鏅傞枔锛�2025/5/12 9:11:08
闁辫畝锛�19
OPA251鏄� Burr-Brown锛堢従(xi脿n)鐐哄痉宸炲剙鍣═I锛夋帹鍑虹殑涓�娆句綆鍣伈銆佷綆澶辩湡闆欓�氶亾閬嬬畻鏀惧ぇ鍣�銆傚畠灏堢偤楂樼簿搴﹀拰楂樻�ц兘闊抽牷鍙婂伐妤�(y猫)鎳夌敤瑷▓锛屽叿鏈夊嚭鑹茬殑鐩存祦鍜屼氦娴佹�ц兘銆侽PA251閲囩敤FET杓稿叆绱氱祼妲嬶紝纰轰繚浜嗗叾鍦ㄩ珮闃绘姉婧愭浠朵笅浠嶈兘淇濇寔妤典綆鐨勮几鍏ュ亸缃浕娴�銆傝┎鍣ㄤ欢寤ｆ硾鎳夌敤浜庨煶闋诲墠缃斁澶у櫒銆佹暩(sh霉)鎿�(j霉)閲囬泦绯荤当(t菕ng)銆侀啱(y墨)鐧傝ō鍌欎互鍙婃脯瑭︽脯閲忓剙鍣ㄧ瓑闋樺煙銆�
銆�銆�OPA251鎻愪緵8寮曡叧SOIC鍜孭DIP灏佽褰㈠紡锛岄仼鐢ㄤ簬鍚勭ó绶婃箠鍨嬭ō瑷堥渶姹傘�傛澶�锛屽叾鍠浕婧愭垨闆欓浕婧愬伐浣滄ā寮忎娇鍏惰兘澶犻潏娲婚仼鎳変笉鍚岀殑闆昏矾鐠�(hu谩n)澧�銆�
渚涢浕闆诲锛毬�5V鑷陈�18V
銆�銆�甯跺锛�10MHz
銆�銆�澧炵泭甯跺绌嶏細10MHz
銆�銆�澹撴摵鐜囷細7V/渭s
銆�銆�杓稿叆鍋忕疆闆绘祦锛�3pA
銆�銆�杓稿叆澶辫(di脿o)闆诲锛�1mV
銆�銆�鏈�澶у姛鑰楋細140mW
銆�銆�宸ヤ綔婧害鑼冨湇锛�-40掳C 鑷� +85掳C
銆�銆�灏佽褰㈠紡锛歋OIC-8, PDIP-8
OPA251鍏峰倷闈炲父浣庣殑杓稿叆鍋忕疆闆绘祦锛�3pA锛�锛岄�欎娇寰楀畠闈炲父閬╁悎铏曠悊楂橀樆鎶椾俊铏熸簮銆傚悓鏅�锛屽畠鐨勪綆澶辩湡鐗规�э紙鍏稿瀷鍊肩偤0.0004%@1kHz锛変繚璀変簡鍦ㄩ煶闋婚牷鐜囪寖鍦嶅収(n猫i)鎻愪緵楂樿唱閲忕殑鑱查煶閲嶆斁銆�
銆�銆�瑭查亱鏀炬搧鏈�10MHz鐨勫甯跺浠ュ強7V/渭s鐨勫揩閫熷鎿虹巼锛屽彲杓曟澗鎳夊皪鍕曟厠(t脿i)璁婂寲杓冨ぇ鐨勪俊铏�銆傛澶栵紝鍏惰粚鍒拌粚杓稿嚭鑳藉姏閫蹭竴姝ュ寮蜂簡鍏跺湪寰╅洔闆昏矾涓殑閬╃敤鎬�銆�
銆�銆�OPA251閭勮〃鐝�(xi脿n)鍑鸿壇濂界殑闆绘簮鎶戝埗姣�(PSRR)锛岄�欐剰鍛宠憲鍗充娇鍦ㄥ瓨鍦ㄩ浕婧愬櫔鑱茬殑鎯呮硜涓�锛屽畠涔熻兘澶犵董鎸佺┅(w臎n)瀹氱殑杓稿嚭鎬ц兘銆傞�欑ó鍎�(y艒u)鐣扮殑鐗规�х祫鍚堜娇OPA251鎴愮偤瑷卞绮惧瘑妯℃摤闆昏矾鐨勭悊鎯抽伕鎿�銆�
OPA251鍥犲叾鍗撹秺鐨勬�ц兘鑰岃寤ｆ硾鐢ㄤ簬浠ヤ笅闋樺煙锛�
銆�銆�1. 闊抽牷瑷倷 - 鍖呮嫭鍓嶇疆鏀惧ぇ鍣�銆佽�虫鏀惧ぇ鍣ㄤ互鍙婃贩闊宠嚭绛夈��
銆�銆�2. 鏁�(sh霉)鎿�(j霉)閲囬泦绯荤当(t菕ng) - 濡侫DC/DAC绶╂矕鍣�銆佸偝鎰熷櫒淇¤櫉瑾�(di脿o)鐞嗛浕璺�銆�
銆�銆�3. 閱�(y墨)鐧傞浕瀛� - 姣斿蹇冮浕鍦栨銆佽秴鑱叉尝鎺㈡脯鍣ㄣ��
銆�銆�4. 娓│鑸囨脯閲� - 鑷嫊娓│瑷倷銆佺ず娉㈠櫒鍓嶇鏀惧ぇ闆昏矾銆�
銆�銆�5. 宸ユキ(y猫)鑷嫊鍖� - 閬庣▼鎺у埗鍎�琛�銆佹鍣ㄤ汉闂滅瘈(ji茅)椹呭嫊鍣ㄥ弽楗嬪洖璺�銆�
銆�銆�绺戒箣锛屼换浣曢渶瑕佽檿鐞嗗井寮变俊铏熸垨鑰呰姹傞珮淇濈湡搴︾殑鍦版柟閮藉彲浠ヨ�冩叜浣跨敤OPA251銆�
OPA2134, OPA227, AD8620
