AD7944BCPZ 鏅傞枔锛�2025/5/23 21:04:35 闁辫畝锛�24

AD7944 鏄竴娆剧敱 Analog Devices锛堜簽寰疯鍗婂皫(d菐o)楂旓級鐢熺敘(ch菐n)鐨勪綆鍔熻€�銆侀珮绮惧害銆�16浣嶉€愭閫艰繎瀵勫瓨鍣ㄥ瀷锛圫AR锛夋ā鏁�(sh霉)杞�(zhu菐n)鎻涘櫒锛圓DC锛�銆傝┎鍣ㄤ欢閲囩敤鍏堥€�(j矛n)鐨勮ō(sh猫)瑷堟妧琛�(sh霉)锛屽湪淇濊瓑楂樻€ц兘鐨勫悓鏅�锛岃兘澶犱互杓冧綆鐨勫姛鑰楅亱(y霉n)琛屻€侫D7944 闆嗘垚浜嗕竴鍊嬩綆鍣伈鍓嶇鏀惧ぇ鍣ㄥ拰鍏�(n猫i)閮ㄥ弮鑰冮浕澹撴簮锛岄仼鍚堝伐妤�(y猫)鎺у埗銆侀啱(y墨)鐧傝ō(sh猫)鍌欎互鍙婃暩(sh霉)鎿�(j霉)閲囬泦绯荤当(t菕ng)绛夊皪绮惧害瑕佹眰杓冮珮鐨勬噳(y墨ng)鐢ㄩ牁(l菒ng)鍩熴€�
銆€銆€AD7944BCPZ 鏄� AD7944 鐨勪竴绋皝瑁濆舰寮�锛岄噰鐢� 20 寮曡叧 TSSOP 灏佽銆�

鍙冩暩(sh霉)

鍒嗚鲸鐜囷細16浣�
銆€銆€杓稿叆鑼冨湇锛�0V 鑷� VREF
銆€銆€鏈€澶ч噰妯ｉ€熺巼锛�1 MSPS
銆€銆€闆绘簮闆诲锛�2.7V 鑷� 5.25V
銆€銆€宸ヤ綔婧害鑼冨湇锛�-40掳C 鑷� +125掳C
銆€銆€灏佽褰㈠紡锛歍SSOP-20
銆€銆€淇″櫔姣旓紙SNR锛夛細93.5 dB
銆€銆€绌嶅垎闈炵窔鎬ц宸紙INL锛夛細卤2 LSB
銆€銆€宸垎闈炵窔鎬ц宸紙DNL锛夛細卤1 LSB
銆€銆€浣庡姛鑰楁ā寮忛浕娴侊細2 uA

鐗规€�

AD7944 鍏锋湁浠ヤ笅涓昏鐗规€э細
銆€銆€1. 楂樼簿搴� 16 浣� SAR ADC锛屾彁渚涘崜瓒婄殑绶氭€у拰浣庡櫔鑱叉€ц兘銆�
銆€銆€2. 鍏�(n猫i)閮ㄩ泦鎴� 2.5V 鍙冭€冮浕澹撴簮锛屾笡灏戝閮ㄥ厓浠堕渶姹�銆�
銆€銆€3. 鏀寔鍠鎴栧樊鍒嗚几鍏ラ厤缃�锛岄潏娲婚仼鎳�(y墨ng)澶氱ó淇¤櫉椤炲瀷銆�
銆€銆€4. 鍏�(n猫i)缃彲绶ㄧ▼澧炵泭鏀惧ぇ鍣紙PGA锛�锛屾敮鎸侀珮閬�(d谩) x8 澧炵泭瑷�(sh猫)缃�銆�
銆€銆€5. 鎻愪緵澶氱ó鍔熻€楁ā寮忛伕鎿囷紝鑳藉鍦ㄤ綆鍔熻€楄垏楂橀€熼噰妯ｄ箣闁撻€�(j矛n)琛屾瑠(qu谩n)琛�銆�
銆€銆€6. 鏀寔 SPI 鍏煎涓茶鎺ュ彛锛屼究浜庤垏寰帶鍒跺櫒鎴� FPGA 閫ｆ帴銆�
銆€銆€7. 瀵伐浣滈浕澹撹寖鍦嶅拰鎿�(ku貌)灞曟韩搴﹁寖鍦嶄娇鍏堕仼鐢ㄤ簬鎯″姡鐠�(hu谩n)澧冧笅鐨勫伐妤�(y猫)鎳�(y墨ng)鐢�銆�

鎳�(y墨ng)鐢�

AD7944 寤ｆ硾鎳�(y墨ng)鐢ㄤ簬闇€瑕侀珮绮惧害鍜屼綆鍔熻€楃壒鎬х殑鍫存櫙涓�锛屽寘鎷絾涓嶉檺浜庯細
銆€銆€1. 宸ユキ(y猫)鑷嫊鍖栧拰閬庣▼鎺у埗涓殑鏁�(sh霉)鎿�(j霉)閲囬泦绯荤当(t菕ng)銆�
銆€銆€2. 閱�(y墨)鐧傚剙鍣�锛屽鐩�(ji膩n)璀�(h霉)鍎€銆佽秴鑱茶ō(sh猫)鍌欎互鍙婂叾浠栭渶瑕佺簿纰烘脯閲忕殑鍎€鍣�銆�
銆€銆€3. 娓│鑸囨脯閲忚ō(sh猫)鍌�锛屼緥濡傛暩(sh霉)瀛楄惉鐢ㄨ〃鎴栧閫氶亾鏁�(sh霉)鎿�(j霉)瑷橀寗鍣ㄣ€�
銆€銆€4. 姹借粖闆诲瓙绯荤当(t菕ng)涓殑鍌虫劅鍣ㄤ俊铏熻(di脿o)鐞�銆�
銆€銆€5. 鑳介噺鐩�(ji膩n)娓拰鏅鸿兘鍎€琛ㄧ郴绲�(t菕ng)銆�
銆€銆€6. 鐠�(hu谩n)澧冪洠(ji膩n)鎺у拰鍏朵粬闇€瑕侀珮绮惧害妯℃摤淇¤櫉鏁�(sh霉)瀛楀寲鐨勬噳(y墨ng)鐢ㄥ牬鏅�銆�