bwin客户端- 椹卞姩绮惧瘑ADC锛氬浣曚负鎮ㄧ殑ADC閫夋嫨鏈€鍚堥€傜殑鍩哄噯鐢靛帇婧愬拰鏀惧ぇ鍣�?- Analog Devices鍘傚晢_鍦ㄧ嚎搴ц皥

绮惧僵闂瓟

涓婚: 椹卞姩绮惧瘑ADC锛氬浣曚负鎮ㄧ殑ADC閫夋嫨鏈€鍚堥€傜殑鍩哄噯鐢靛帇婧愬拰鏀惧ぇ鍣�?
鍦ㄧ嚎闂瓟:
[闂細callhxw]	濡備綍璇勫畾涓€棰桝DC闈炵嚎鎬э紵涓㈢爜锛�
[绛旓細Jing]	you can use ADC"s INL and DNL parameter to evaluate the non-linearity and you can also use ENOB parameter to check code loss. Thanks!Generally ENOB releated with ADC"s SNR	[2006-2-28 10:32:08]
[闂細鍚夋槦]	鍦ㄥ樊鍒嗚緭鍏ユ椂锛屼笉鑰冭檻鐩存祦锛屼娇鐢ㄥ樊鍒嗘斁澶у櫒鍜屽彉鍘嬪櫒鍝釜鏇村ソ锛�
[绛旓細Mariah]	Transformer is better for the better noise and distortion performance, especially in very high frequencies.	[2006-2-28 10:32:14]
[闂細Jane Yang]	璇烽棶搴斿浣曞鐞嗘澘绾у櫔澹板浜庨珮绮惧害AD鐨勫奖鍝嶏紵鐗瑰埆鏄緭鍏ラ儴鍒嗙殑鍣０锛�
[绛旓細Jing]	This is a good question and it"s very difficult to answer. Generally, You should consider all the input noise derived from sensor/AMP/BUFFER. You can also use a LPF to reduce the input noise. Remember the BGP of AMP should be 100x of ADC"s throughput. Thanks!	[2006-2-28 10:34:30]
[闂細鐭虫灄鑹砞	AD鍙樻崲鐨勫弬鑰冨熀鍑嗘簮寰堥噸瑕侊紝瀵规ā鎷熶緵鐢电數婧愬拰鏁板瓧渚涚數鐢垫簮鐨勮姹備篃寰堥珮鍚�
[绛旓細Rui]	妯℃嫙渚涚數鐢垫簮锛屽拰鏁板瓧渚涚數鐢垫簮鐩稿鍩哄噯婧愭潵璇达紝绮惧害瑕佹眰鐩稿杈冧綆锛屼竴鑸儏鍐典笅鐢�10uF鐨勭數瀹瑰拰0.1uF婊ゆ尝鍗冲彲銆�	[2006-2-28 10:34:31]
[闂細zcs_1]	璇疯В閲婁竴涓嬶紝鍒嗚鲸鐜囧拰杞崲绮惧害涔嬮棿鐨勫尯鍒�
[绛旓細Mariah]	For conversion accuracy, it involves many aspecs. For example, INL, DNL, offset, gain error.	[2006-2-28 10:34:46]
[闂細Leemour]	灏嶄笉璧疯兘鍚﹁瑳涓€涓嬩粈楹兼槸锛歊AIL TO銆€RAIL锛岄€欏€嬫垜涓€鐩翠笉澶槑鐧姐€�
[绛旓細Xiangquan]	杞ㄥ埌杞ㄦ寚杈撳叆杞ㄥ埌杞紝鎴栬緭鍑鸿建鍒拌建锛屽叿浣撴寚鐨勬槸杈撳叆淇″彿鎴栬€呰緭鍑轰俊鍙风殑鑼冨洿鍩烘湰鎺ヨ繎浜庣數婧愶紝璀鐢垫簮鏄�+-5V锛岃緭鍏ヤ俊鍙锋垨杈撳嚭淇″彿鍙互杈惧埌+-4.9鍑燰浠ヤ笂	[2006-2-28 10:35:25]
[闂細jlwg]	寰堝绉峚di鐨刟/d杞崲鍣ㄤ欢閮借嚜甯︽湁鏍囧噯鐢靛帇婧愶紝璇烽棶鏄娇鐢ㄥ櫒浠惰嚜甯︾殑鏍囧噯鐢靛帇婧愬ソ杩樻槸鍙﹀浣跨敤鐙珛鐨勬爣鍑嗙數鍘嬫簮鏇寸簿纭紵鍙﹀浣跨敤ad7710鏃讹紝姣忔杞崲閫氶亾鍚庣殑绗竴娆¤浆鎹㈢粨鏋滄槸鍚︽槸鏈夋晥鐨勶紵
[绛旓細Troy]	Use an independant reference to get the highest accuracy and lowest temperature drift. It depends on how much accuracy your application needs over temperature.	[2006-2-28 10:37:14]
[闂細xwlcba]	鎮ㄦ彁鍒伴┍鍔ˋD鐨勮繍鏀惧鐩婂甫瀹界Н瑕佹眰澶т簬100鍊嶉噰鏍烽€熺巼,璇烽棶瀵硅繍鏀剧殑杞崲閫熺巼鏈変綍鍏蜂綋瑕佹眰?
[绛旓細Troy]	To get the lowest distortion (THD), we recommend using an amplifier with at least 100x gain-bandwidth product greater than the sample rate.	[2006-2-28 10:39:36]
[闂細bly1979m]	鏈汉鏈€杩戝仛浜嗕竴涓」鐩敤浜庣簿纭祴閲忔俯搴︾殑锛屽氨鐢ㄥ埌浜嗚繖涓ょ鍣ㄤ欢锛佽鎺ㄨ崘鍑犳璐靛徃浜у搧锛熷苟璇磋瀹冪殑澶ф浠锋牸鏄灏戯紵
[绛旓細Jing]	It"s depend on the accuracy of your system requirement. I am pleased to recommend that you can use our ADR421+AD7799. For price, you can check it on our web or consult our distributor according to your volume. Thanks!	[2006-2-28 10:39:40]
[闂細guahuahua]	閫夌敤AD7788鏃讹紝鑳介€夋嫨鐨勬渶閫傚綋鐨勫弬鑰冨熀鍑嗘簮鏄摢涓€娆�
[绛旓細Mariah]	You can try the software we recommended in the presentation "reference selection wizard". You can download it from the link of http://www.analog.com/Analog_Root/static/techSupport /designTools/voltageReference/download.html	[2006-2-28 10:41:33]
[闂細arzhiy]	RC婊ゆ尝鍣ㄨ璁″湪ADC鍓嶅氨浼氬嚭鐜扮浉浣嶆紓绉荤殑鎯呭喌锛岃繖鏍烽噰闆嗗埌鐨勪俊鍙锋槸涓€涓け鐪熺殑锛屾槸杩欐牱鐨勫悧锛�
[绛旓細Troy]	The RC filter will not add any distortion to the signal. The RC filter will reduce noise at frequencies higher than its cutoff frequency. This improves ADC performance because it reduces out-of-band noise to the ADC input.	[2006-2-28 10:44:33]
[闂細yz_yjg]	鎴戜滑鐨勬湁涓€涓弻閫氶亾鏁板瓧绀烘尝鍣ㄤ骇鍝侊紝褰撹繘琛屽瀭鐩寸Щ浣嶆椂锛屽嵆鏂藉姞缁橝D9288鐨勭洿娴佺數骞虫敼鍙樻椂锛屽彂鐜板彂鐜板熀涓竴涓€氶亾鍦↙CD灞忎笂鐨勬煇浜涘尯鍩熺殑鍩虹嚎鍙樼矖锛堣繖鏈夎寰嬶紝濡傛瘡闂撮殧16鎴�32鍑虹幇锛夛紝鏈�2mm鍒�8mm宸﹀彸涓嶇瓑锛屾洿鎹D9288鍗冲彲銆傚ぇ澶氭暟鏄叾涓殑涓€涓狝DC鏈夐棶棰橈紝鎴戜滑甯屾湜鍩虹嚎鍦ㄥ睆骞曚笂绉诲姩鏃讹紙涓嶅姞淇″彿锛夛紝鎵弿鍩虹嚎鐨勪笉瑕佸彂鐢熺矖缁嗗彉鍖栵紝璇烽棶鏄粈涔堝師鍥狅紵AD9288鑳藉畬鍏ㄦ秷闄よ繖绉嶇幇璞″悧锛�
[绛旓細Mariah]	We need to know more details about your circuit. Would you please send your question and schematic in details to china.support@analog.com, and then our engineer will help you on that.	[2006-2-28 10:45:35]
[闂細callhxw]	鍙屾瀬鎬ц緭鍏ヤ俊鍙凤紝閲囩敤OP杞崲涓哄崟鏋佹€х殑鍒癆DC锛岃璁℃椂搴斿叧娉ㄥ摢浜涳紵
[绛旓細Jing]	First , you can select AD8129/AD8130 to realise the function. But this will reduce the ENOB. I suggest you use differential input ADC too. You should consider the noise from the AMP and the GBP of the AMP.You had better to select a high GBP and CMRR and low noise AMP. Thanks!	[2006-2-28 10:45:35]
[闂細Jane Yang]	which reference is better: external or on-chip, for high speed (40~105M) and 12~14bit ADC?
[绛旓細Troy]	External references give better initial accuracy and lower drift over temperature. Using the on-board reference or an external one depends on the accuracy you need in the application. Generally speaking, the higher the ADC resolution (# of bits), the more likely you will need an external reference.	[2006-2-28 10:46:16]
[闂細liu.gy]	1銆佸氨ADI鐨勪骇鍝佽€岃█锛岃缁欏嚭鈥滃熀鍑嗙數鍘嬫簮+ADC鈥濈殑涓ょ鏂规锛氬垎绂讳笌闆嗘垚涓や釜鏂规鐨勪紭缂虹偣锛� 2銆佽繍鏀惧埌ADC涔嬮棿浠€涔堟椂鍊欓渶瑕佸姞婊ゆ尝澶勭悊锛熷鏋滃姞婊ゆ尝澶勭悊锛岃缁欏嚭婊ゆ尝鐨勬柟寮忓強鎬ц兘姣旇緝锛�
[绛旓細Xiangquan]	1銆傞泦鎴愪富瑕佸甫鏉ユ柟渚匡紝浣嗘槸寰€寰€鐢变簬宸ヨ壓鐨勯檺鍒跺線寰€涓嶈兘鍙戞尌杞崲鍣ㄧ殑鏈€楂樻€ц兘锛屽鏋滈€夋嫨鍚堥€傜殑澶栭儴鍙傝€冩簮锛屽垯鍙互姣旇緝濂界殑鍙戞尌杞崲鍣ㄧ殑鎬ц兘 2銆傝繍鏀句笌AD涔嬮棿鐨勬护娉富瑕佷负鐨勬槸婊ら櫎鍣０锛屾姉娣峰彔锛屼互鍙婄粰ADC鐨勮浆鎹骇鐢熺殑鐬€佽兘閲忔彁渚涚紦鍐诧紝涓€鑸竴闃禦C浣庨€氭护娉㈠嵆鍙紝鎴栬€呭浜庡甫閫氭护娉紝鍙互鏍规嵁鑷繁鐨勮姹傝繘琛岃璁�	[2006-2-28 10:46:34]
[闂細chenhaifeng]	鏀惧ぇ鍣ㄧ殑PSRR鏄惁涓庡鐢佃矾鍙婅緭鍏ヤ俊鍙锋棤鍏筹紵
[绛旓細Haoran]	PSRR涓昏鏄數婧愬淇″彿鐨勫奖鍝嶏紝涓庡鐢佃矾鍜屼俊鍙锋棤鍏�	[2006-2-28 10:47:12]
[闂細hzluoping]	璇烽棶锛�1锛夌簿瀵咥DC鐨勬暟瀛楀湴鍜屾ā鎷熷湴鐨勬纭帴娉曞強瀵笰DC杞崲绮惧害鐨勫奖鍝嶏紵 2锛夊湪鍗曠墖鏈虹郴缁熷簲鐢ㄦ椂锛屽绮惧瘑ADC鐨勫惎鍔ㄥ拰鏁板瓧淇″彿鐨勮緭鍑虹殑鎺у埗鏈変綍瑕佹眰锛�
[绛旓細Jing]	1> you should consider the system current. If the digital current is small, you can seperate digital GND and analog GND and combine them together in one point. If the digital current or noise is very large, you can also look ADC digital GND as analog GND. 2>I don"t know what you mean. Generally ,some of our ADC has hardware start and software start selection.	[2006-2-28 10:48:39]
[闂細arzhiy]	甯哥敤鐨凴C寰€寰€鏈敓鍣０涔熷緢澶э紝杩欐牱涓斾笉鏄洿鍔犲鍔犱簡閲囨牱鐨勫櫔澹帮紵
[绛旓細Haoran]	鍣０涓昏鏉ユ簮浜庣數闃伙紝瀹為檯涓婂湪鍙兘鐨勬儏鍐典笅鎴栫數璺ǔ瀹氱殑鍓嶆彁涓嬶紝灏介噺澧炲ぇ鐢靛鍙互鎻愰珮鍣０鎬ц兘銆�	[2006-2-28 10:48:50]
[闂細boclandc]	鎴戦噰鐢ㄤ簡AD7671,娴嬭瘯8閫氶亾鐨勭嚎鎬х數瀛愬昂(绛夋晥绾挎€х數闃�),璇烽棶鏈変粈涔堝ソ鐨勫閫氶亾鍒囨崲,鎴戦噰鐢ㄤ簡浜岀墖MAX4052鍚庨潰閫氳繃AD620鍋氶┍鍔�,浣嗘槸鍒囨崲鑷崇ǔ瀹氭椂闂撮渶杈�10uS,鍦ㄥ垏鎹㈤€熷害涓婇潪甯镐笉鐞嗘兂.涓嶇煡璐靛叕鍙告湁鍚﹁繖鏍风殑鏂规,浣垮垏鎹㈤€熷害灏忎簬鎴栫瓑浜�2uS?璋㈣阿!!
[绛旓細Mariah]	ADI has many new mux and switches which has better performance, like ADG121x, ADG13xx and ADG14xx. Also the settling time also depends on your circuit. You can send your schematic and question to china.support@analog.com. Our engineer can analyze your circuit and give out the solution.	[2006-2-28 10:49:42]
[闂細ecnanjing_EBY7E]	璇烽棶,鐢靛帇鍩哄噯鐨勭簿搴﹀拰娓╁害绯绘暟瀵笰D鐨勭簿搴︾殑褰卞搷鐨勬崲绠楀叧绯绘槸鎬庢牱鐨�?
[绛旓細Haoran]	浣犲彲浠ュ湪浠婂ぉ鐨勮祫鏂欎腑鎵惧埌锛屽苟涓斿彲浠ヤ粠鎴戜滑鐨勭綉绔欎笂涓嬭浇	[2006-2-28 10:50:00]
[闂細hzluoping]	妯℃嫙鍦板拰鏁板瓧鍦扮殑鎺ユ硶瀵笰DC褰卞搷澶э紝濡備綍浣滃ソ鎺ュ湴锛�
[绛旓細Rui]	鍦扮殑鎺ユ硶涓€鑸湁涓ょ锛�1銆傛妸鍦板钩闈㈠垎鍓蹭负妯℃嫙鍦板拰鏁板瓧鍦帮紝鎴栬€呬竴灞傛暟瀛楀湴锛屼竴灞傛ā鎷熷湴锛岀劧鍚庡叡鍚屾帴鍒板叡鍦扮偣銆�2銆備笉鍒嗗壊妯℃嫙鍜屾暟瀛楀湴锛屼娇鐢ㄥ鐐规帴鍦般€� 瀵逛簬绗竴绉嶆儏鍐碉紝娉ㄦ剰鏁板瓧鍦板眰鍜屾ā鎷熷湴灞備笉鑳介噸鍙犮€� 瀵逛簬绗簩绉嶆儏鍐碉紝瑕佹彁渚涘敖閲忓鐨勬帴鍦扮偣銆�	[2006-2-28 10:50:14]
[闂細amatist]	鍩哄噯婧愭湁榻愮撼浜屾瀬绠″拰甯﹂殭鐢靛帇鍩哄噯绛夊嚑绉�,瀹冧滑鏈変綍浼樼己鐐�?
[绛旓細Troy]	References built using bandgaps have lower temperature drift, but they are more complicated and more expensive. Zener references are usually less expensive, but have more noise and may have lower initial accuracy and higher drift over temperature.	[2006-2-28 10:50:22]
[闂細amatist]	瀵圭數鍘嬪熀鍑嗘簮鐨勮姹備富瑕佹湁閭ｄ簺鎸囨爣?濡備綍閫夋嫨鐢靛帇鍩哄噯婧�?
[绛旓細Jing]	Intinal accuracy, temperature drift is two of the key factor. You can according to your system error requirement and download our REF+CONVERTER wizard to select the corresponding REF. Thanks!	[2006-2-28 10:50:22]
[闂細elmer]	鏀惧ぇ淇″彿涓嚭鐜板ぇ鐨勮剦鍐蹭俊鍙凤紝鎬庢牱鍘婚櫎杩欎釜淇″彿锛�
[绛旓細Haoran]	浣犲彲浠ュ厛鍦ㄨ繍鏀惧墠澧炲姞浣庨€氭护娉㈠櫒銆�	[2006-2-28 10:51:00]
[闂細wzj0713]	pA~mA鐨勯珮鍔ㄦ€佷綆鍙樺寲閫熺巼杈撳叆鐨勪俊鍙疯皟鐞嗘嫙浣跨敤ADI浜у搧ad8304锛岀幇鍦ㄩ渶鍜ㄨ鐨勬槸濡備綍鏈€灏忛檺搴︾殑鍑忓皬寮曞叆鍣０锛堜粠PCB鐗堝浘銆佸伐鑹哄拰鐢佃矾澶勭悊涓ゆ柟闈級銆�
[绛旓細Jing]	You can use AD8304 to interface a PIN and converter current to voltage. To minize the input noise, you should select a better PIN--this is the first noise source. Then you should select high accuract resistor and capacitor . Of course, multi layer PCB is better to minize the inout noise.	[2006-2-28 10:53:35]
[闂細yz_yjg]	ADI鏈夋病鏈夊彲缂栫▼鐨勫熀鍑嗙數鍘嬫簮?鍨嬪彿?
[绛旓細Troy]	We do not have a digitally programmable voltage reference today. The AD8555 is a digitally programmable instrumentation amplifier with a built-in voltage reference. You could use this just as a programmable voltage reference by grounding the +IN and -IN pins.	[2006-2-28 10:54:40]
[闂細hanxin]	鍦ㄤ娇鐢ˋDI鐨凙D杞崲鍣ㄧ殑鏃跺€�,濡備綍纭畾鏄惁闇€瑕佸墠绔殑杩愭斁? 濡備綍鏍规嵁涓嶅悓鐨凙D纭畾闇€瑕佸摢涓€绉嶈繍鏀�?濡備綍澶勭悊鍓嶇鐨凴C ? 鏄惁鍙互鍒嗗埆灏盇D7865鍜孉D7656鏉ヨ鏄�?
[绛旓細Haoran]	AD7865鏄�14bit鐨凙DC锛岃緭鍏ョ涓轰綆闃伙紝鎵€浠ュ墠绔繀椤婚€夌敤鍙屾瀬鎬х殑杩愭斁銆傛暣涓甫瀹藉唴鐨勫櫔澹拌婊¤冻14姣旂壒ADC鐨勮姹傘€侽P497/OP4177鏄笉閿欑殑閫夋嫨銆� AD7656鏄�16bit鐨凙DC锛岃緭鍏ョ涓洪珮闃伙紝鎵€浠ユā鎷熷墠绔彲鐢ㄩ珮鎬ц兘鐨勫弻鏋佹€ц繍鏀撅紝涔熷彲浠ヤ笉鐢ㄣ€備絾鎴戜滑寤鸿閲囩敤锛岃繖鏍蜂俊鍙风殑瀹屾暣鎬ф瘮杈冨ソ銆傚綋鐒惰繍鏀剧殑閫夋嫨锛岀數璺殑璁捐瑕佹弧瓒冲櫔澹拌姹傘€侽P4177/AD8674鏄笉閿欑殑閫夋嫨銆�	[2006-2-28 10:56:03]
[闂細zcs_1]	Ad8138浣跨敤搴旀敞鎰忓摢浜涘湴鏂癸紝濂藉儚鐢甸樆涓嶈兘璁剧疆寰堝ぇ鐨勯樆鍊硷紵
[绛旓細Jing]	AD8318 is our RF LOG-AMP. I don"t know which resistor you are mentioned. For better performance, you should pay attentation to the impedance match of input/output circuit. This is the very important factor.	[2006-2-28 10:56:11]
[闂細hanxin]	閫夋嫨鍩哄噯鐨勬椂鍊�,鎴戜滑涓昏闇€瑕佺湅閭ｄ簺鍙傛暟?鍝簺鍙傛暟鍐冲畾涓€涓熀鍑嗘槸姣旇緝濂界殑?
[绛旓細Troy]	Initial accuracy is the easiest spec to compare. Temperate drift in ppm/C is also important. If you are using a portable application, supply current will be important. For 16+ bit ADC applications, the output noise is also important.	[2006-2-28 10:56:46]
[闂細shandong]	闄嶄綆鍣０鐨勪富瑕佹帾鏂藉拰鎵嬫閮芥湁閭ｄ簺?骞朵笖姣旇緝缁忔祹鍜屽疄鐢ㄧ殑鏈夐偅浜�?
[绛旓細Xiangquan]	涓嶇‘瀹氭偍鐨勫簲鐢ㄥ満鍚堟槸浠€涔堬紝鎬讳綋鏉ヨ锛屼綘鍙互锛�1.閫夋嫨楂樻€ц兘鐨勫櫒浠讹紝2.瀵规劅鍏磋叮鐨勫甫瀹借繘琛屾护娉紝3.妯℃嫙鍦板拰鏁板瓧鍦扮殑鍒嗗壊(layout issues)	[2006-2-28 10:57:20]
[闂細zrg175]	璇烽棶鐢ㄧ數鎰熻繘琛屾护浣庨鐨勮瘽锛岀數鎰熺殑鍊兼€庢牱閫夋嫨锛屾湁浠€涔堣寰嬪悧锛熻阿璋紒
[绛旓細Rui]	涓€鑸儏鍐典笅锛岀數璺腑浣跨敤鐢靛婊ゆ尝锛岄珮閫氭护娉㈠櫒鐨勬埅鑷抽鐜囦负1/(2Pi*RC). 濡傛灉鎮ㄦ湁鐗规畩闇€瑕侊紝蹇呴』浣跨敤鐢垫劅杩涜婊ゆ尝锛岃鎶婂叿浣撶殑鎯呭喌鍜岄棶棰樻彁渚涚粰 china.support@analog.com 瀵绘眰鏇磋缁嗙殑甯姪	[2006-2-28 10:57:25]
[闂細luyisa]	鍦ㄥ閫氶亾娴嬮噺涓紝妯℃嫙寮€鍏冲嚭鏉ョ殑淇″彿鏄惁鑳界洿鎺ヨ繘ADC?鑻ヤ腑闂磋鎺ヨ繍鏀剧殑璇濓紝瀵硅繍鏀剧殑瑕佹眰鏈変粈涔堬紵
[绛旓細Jing]	Yes , you can interface MUX and ADC together. if you want to get better performance, you can add AMP before the MUX for every channel.	[2006-2-28 10:57:51]
[闂細鐭虫灄鑹砞	鎬庢牱鎻愰珮A/D鍙樻崲鐨勬湁鏁堜綅鏁帮紝灏ゅ叾瀵归珮棰戠殑鍙樻崲锛�
[绛旓細Haoran]	鍦ㄩ€夊畾涓€瀹氫綅鏁扮殑ADC涔嬪悗锛屽墠绔俊鍙风殑澶勭悊瑕佹弧瓒崇簿搴﹁姹傦紝鍙傝€冪數鍘嬬殑鍣０瑕佸敖閲忕殑灏忥紝瀵逛簬楂橀€烝DC,鏃堕挓鐨勭簿搴︿篃鏄鑰冭檻鐨勯噸瑕佸洜绱犮€�	[2006-2-28 10:58:34]
[闂細xiexinpo]	璇烽棶锛氬浜嶢D9235BRU-40,閫夋嫨3.3V鍗曠數婧愶紝鐢ˋD8137鍋氬墠绾х紦鍐插苟杞崲鎴愬樊鍒嗚緭鍑猴紙1.625V 鍙傝€冪數鍘嬶級锛岀劧鍚庣敤AD8330ARQ鍋氬鐩婅皟鏁存槸鍚﹀彲琛岋紵搴旀敞鎰忓摢浜涢棶棰橈紵鏄惁瑕佸鍔犱綆閫氭护娉㈠櫒锛熷叾浣庣數鍘嬬數婧愬浜庢ā鏁拌浆鎹㈠櫒鐨勭嚎鎬у拰鍔ㄦ€佽寖鍥存湁澶氬ぇ鐨勫奖鍝嶏紵璋㈣阿锛�
[绛旓細Mariah]	There would be no problem for use the combination of these parts. For low voltage application, use rail to rail output amplifiers will increase the dynamic range. As you know, AD8330 is a rail to rail output amplifier. There should be a anti-aliasing filter before the ADC. You can find the typical connection of the AD8330 and ADC. You can just add a R-C filter between AD8330 and the ADC.	[2006-2-28 11:00:56]
[闂細tjshen]	楂樼簿搴DC銆佺數鍘嬫簮鍜屾斁澶у櫒鐨勯暱鏈熺ǔ瀹氭€х殑娴嬮噺鏂规硶鍙婂叾璁惧鐨勮姹傘€�
[绛旓細Troy]	We characterize at least 300 units for 1000 hours before qualifying a product family released for sale. Offset voltage is measured before the 1000 hours and after the 1000 hours. The difference in offset voltage is the drift. We calculate long-term drift based on these numbers. Stability is verified on the bench by observing the output voltage with an oscilloscope.	[2006-2-28 11:01:04]
[闂細caitouc]	绮惧瘑搴旂敤鏃舵槸鍚﹂渶瑕佸鐢垫簮50Hz杩涜婊ゆ尝?濡備綍瀹炵幇?
[绛旓細Xiangquan]	涓€鑸績鐢典俊鍙凤紙mV绾т俊鍙凤級銆佽剳鐢典俊鍙凤紙uV绾т俊鍙凤級锛屼互鍙婁竴浜涘皬淇″彿鐨勬祴閲忛渶瑕佽繘琛屽伐棰戞姂鍒讹紝鍥犱负宸ラ淇″彿寰€寰€鍙互寮曡捣浼忕骇骞叉壈锛涘鏋滃50Hz杩涜婊ゆ尝锛屼富瑕佹湁杞欢鍜岀‖浠剁殑鏂规硶鏉ュ疄鐜皀otch filter锛屼篃鍙互鍒╃敤鎻愰珮绯荤粺鐨勫叡妯℃姂鍒舵瘮(CMRR)鏉ュ疄鐜般€�	[2006-2-28 11:02:38]
[闂細arzhiy]	瀵逛簬24bitADC鎴戜滑涓€鑸€夊彇浠€涔堟牱鐨勫熀鍑嗘簮锛屼緥濡傞噰鐢ˋD鍏徃鐨勫摢涓瀷鍙凤紵
[绛旓細Troy]	I recommend the ADR420 family.	[2006-2-28 11:02:53]
[闂細Jane Yang]	To evaluate your AD, such as AD9236, what kind of clock source and signal source should be equiped? could you give some examples?
[绛旓細Jing]	For clock, you can use ADF4360-X or ADF411X+VCO or AD9510+VCO . For signal source , you can use some instrument such as rohde-schwarz company"s instrument .	[2006-2-28 11:03:01]
[闂細engronger]	杩愮畻鏀惧ぇ鍣ㄦ湁鏃跺€欎細鏈夋俯婕傜殑鐜拌薄,璇烽棶璋冩暣娓╂紓鏈変粈涔堝ソ鐨勫姙娉�?
[绛旓細Haoran]	瀵逛簬鏅€氳繍鏀撅紝浣犲彲浠ョ湅鍒癘ffset Drift杩欎釜鍙傛暟锛屼粬鐨勫ぇ灏忎唬琛ㄤ簡娓╂紓銆傚綋鐒讹紝浣犺繕鍙互閫夌敤鎴戜滑zero drift鐨勬斁澶у櫒锛孉D8628/9/30鏄洰鍓嶆渶濂界殑鏀惧ぇ鍣ㄣ€�	[2006-2-28 11:03:57]
[闂細lsqbank]	AD杞崲鑺墖鐨凣ain Error锛屼竴鑸渶鍧忔儏鍐甸兘鑳借揪鍒�0.25%FSR锛岃闂紝濡備綍鍑忓皬杩欎竴璇樊锛孏ain Error Match鏄惁鏄湪宸茬粡杩涜璋冩暣鍚庯紝AD鑺墖鐨凣ain Error鎵€鑳借揪鍒扮殑鏈€濂芥€ц兘锛�
[绛旓細Mariah]	Generally speaking, gain error is a linear error. So you can use calibration to remove this error. The main concern of using the ADC is the gain nonlinearity error. Nonlinearity error is difficult to remove.	[2006-2-28 11:04:30]
[闂細ecnanjing_EBY7E]	鍙屾瀬淇″彿杞负鍗曟瀬淇″彿瑕佸紩鍏ョ洿娴佸垎閲�,瀵笰D鐨勭簿搴︽湁鏃犲奖鍝�?
[绛旓細Troy]	Not if you use an instrumenation amplifier. If you use external resistors, the accuracy is only as good as the resistor matching.	[2006-2-28 11:04:40]
[闂細zcs_1]	璇烽棶濡備綍鏍规嵁璁捐鏉ラ€夋嫨鍚堥€傜殑浣嶆暟鐨凙D鎴朌A鑺墖
[绛旓細Rui]	涓昏鏄牴鎹偍鐨勭郴缁熸墍闇€瑕佸埌棰戠巼鍜岀簿搴︽墍鍐冲畾鐨勩€� 棣栧厛纭畾淇″彿鐨勫伐浣滈鐜囷紝閫夋嫨鑳藉婊¤冻閲囨牱閫熷害鐨凙D鎴朌A锛� 鍏舵纭畾淇″彿鐨勫箙鍊硷紝閫夋嫨鑳藉鎻愪緵瓒冲杈撳叆/杈撳叆鑼冨洿鐨凙DC锛屽悓鏃跺彲鏍规嵁闇€瑕佺殑绮惧害鎴栧厑璁哥殑璇樊鑼冨洿閫夋嫨鏀惧ぇ鍣ㄧ殑浣嶆暟銆� 杩樻湁杈撳叆/杈撳叆涓哄樊鍒嗘垨鑰呭崟绔紝杈撳叆鐨勪俊鍙风殑璺暟锛屾湁鏃犲唴缃弬鑰冩簮锛屽唴缃紦鍐茬瓑绛夐兘鍙互浣滀负閫夋嫨鐨勬爣鍑嗐€�	[2006-2-28 11:04:51]
[闂細kivin_G]	鐜板湪鐨勭數鍘嬪熀鍑嗘簮鏈€浣庣數鍘嬭兘杈惧埌澶氫綆?鏈夋病鏈夌數鍘嬩负0.6V鐨勭數鍘嬪熀鍑嗘簮?
[绛旓細Troy]	Usually about 1.2V. I am not familiar with a 0.6V reference. You could use a forward-biased diode to generate 0.6V to 0.7V.	[2006-2-28 11:05:46]
[闂細sxfs1984]	濡備綍闄嶄綆杩愮畻鏀惧ぇ鍣ㄨ緭鍑虹殑娉㈢汗?搴旇鑰冭檻閭ｆ柟闈㈢殑鍥犵礌?
[绛旓細Haoran]	棣栧厛浣犺鍏堣€冭檻杩欎釜绾规尝鏄粠鍝噷鏉ョ殑锛岀劧鍚庡啀纭畾鍦ㄦ€庝箞澶勭悊銆�	[2006-2-28 11:06:26]
[闂細ecnanjing_EBY7E]	璇烽棶鏀惧ぇ鍣ㄧ殑鐩镐綅澶辩湡濡備綍鎺у埗?
[绛旓細Mariah]	you can use compensation circuits to do that.	[2006-2-28 11:07:06]
[闂細amatist]	鍚戝涓數璺彁渚涘熀鍑嗙數鍘嬫簮鏃�,濡備綍鎵╁厖鍩哄噯鐢靛帇婧愮殑杈撳嚭鑳藉姏?
[绛旓細Troy]	One way to increase output current is to use a unity-gain buffer at the output of the reference. This is a very common technique for improving the reference output drive.	[2006-2-28 11:08:21]
[闂細sxfs1984]	浠€涔堟儏鍐典笅瑕侀€夋嫨闅旂鏀惧ぇ鍣�?濡備綍閫夋嫨?
[绛旓細Mariah]	When there are potential high voltage difference between two sides, you need to isolate them. For example, medical applications, motor control applications.	[2006-2-28 11:09:32]
[闂細hzluoping]	瀵圭洿娴佺撼绾у急淇″彿鏀惧ぇ鏃讹紝澧炵泭甯﹀绉棶棰樺浣曠湅
[绛旓細Rui]	涓€鑸儏鍐典笅锛屽浜庡皬鐢垫祦淇″彿锛屾斁澶у€嶆暟瑕佹眰閮戒細姣旇緝澶э紝渚嬪1000锛屽鏋滀俊鍙烽鐜囧悓鏃跺張姣旇緝楂橈紝灏辫娉ㄦ剰澧炵泭甯﹀绉殑闄愬埗鐨勯棶棰樸€� 澧炵泭甯﹀绉负淇″彿棰戠巼鍜屾斁澶у€嶆暟鐨勪箻绉紝鍦ㄩ€夋嫨鍣ㄤ欢鐨勬椂鍊欒娉ㄦ剰璇ユ暟鍊间笉鑳借秴杩囨斁澶у櫒鐨勭粰鍑虹殑澧炵泭甯﹀绉弬鏁�	[2006-2-28 11:09:55]
[闂細woodxp]	瀵逛簬浣庨淇″彿涔熼渶瑕佸姞鎶楁贩鍙犳护娉㈠櫒鍚楋紵
[绛旓細Mariah]	Yes.	[2006-2-28 11:10:05]
[闂細htc703]	1.鏀惧ぇ鍣ㄧ殑鍣０en鐨勫嘲宄板€�(Vp-p)鍜屾湁鏁堝€兼湁鑱旂郴鍚楋紵鎬庝箞鎹㈢畻锛� 2.鍦�24-bit鏁版嵁閲囬泦绯荤粺璁捐涓簲璇ユ敞鎰忓摢浜涢棶棰橈紵
[绛旓細Haoran]	1銆俈p-p=6.6Vrsm 2銆傚湪sigma-delta ADC涓紝SNR鏄瘮杈冮噸瑕佺殑鍙傛暟銆傝璁′腑涓昏搴旀敞鎰忓墠绔殑澶勭悊锛屼互鍙婄増鍥炬柟闈㈢殑鑰冭檻銆�	[2006-2-28 11:10:07]
[闂細bly1979]	1銆傝闂洰鍓嶆€т环姣旀渶楂樼殑ADC鏄摢涓€娆撅紵澶ф浠锋牸鏄灏戯紵 2銆備綅鏁版渶澶х殑ADC鏄摢涓€娆撅紝澶氬皯浣嶏紵澶ф浠锋牸鏄灏戯紵 3銆備綆鍔熻€桝DC鏄摢涓€娆撅紵鏈€浣庡姛鑰楀灏戯紵澶ф浠锋牸鏄灏戯紵
[绛旓細Jing]	1. It"s very hard to answer this question. It should according to your application such as your accuracy,error ,power supply,throughput etc. 2. Now we have 24bit ADC such AD ad7799 etc 3. AD7680 is a good selection for portable instrument---3mW For price,please present your volume and consult our distributor our check it on our web. Thanks!	[2006-2-28 11:11:10]
[闂細lewisflame]	涓撳鎮ㄥソ銆佷富鎸佷汉鎮ㄥソ锛孉DC鍩哄噯缁忚繃鏀惧ぇ鍣ㄩ┍鍔ㄥ悗锛岄€氳繃闀滃儚缁撴瀯杈撳嚭鍩哄噯鐢垫祦锛屾瘡涓€瀵归暅鍍忕鐨勭増鍥炬槸涓嶆槸鏈€濂戒娇鐢ㄧ浉鍚岀殑鍗曟潯灏哄锛歐涓嶅尮閰嶄細涓嶄細澧炲ぇ澶遍厤锛�
[绛旓細Troy]	Yes. It is a good idea to use the same metal width.W涓嶅尮閰嶄細浼氬澶уけ閰�	[2006-2-28 11:11:31]
[闂細xiexinpo]	鑷姩鏍￠浂鏀惧ぇ鍣ㄥADC鐨勫櫔澹版湁澶氬ぇ褰卞搷锛�
[绛旓細Troy]	Auto-zero amplifiers have slightly more noise than non-auto-zero amplifiers. In many cases, the noise will still be much lower than 1LSB. Many customers use auto-zero amplifiers and do not have any problems with noise. Auto-zero amplifiers have no drift over temperature and almost zero offset voltage. I recommend using them when possible.	[2006-2-28 11:15:06]
[闂細woodxp]	鍦ˋDC鍓嶅姞RC婊ゆ尝锛屼笉浼氬奖鍝岮DC鐨勬€ц兘鍚楋紵鍥犱负ADC涓€鑸湁閲囨牱淇濇寔鐢佃矾锛屽湪鍏跺墠闈㈠苟涓婁竴涓數瀹癸紝鍒欎細褰卞搷鍏堕噰鏍蜂繚鎸佹椂闂村惂锛�
[绛旓細Haoran]	鍔燫C婊ゆ尝涓嶄細褰卞搷ADC鐨勬€ц兘锛岀浉鍙嶈繕浼氭彁楂樺畠鐨勬€ц兘鍜岀ǔ瀹氭€с€侫DC鍐呴儴涓€鑸湁閲囨牱鐢佃矾锛屽閮ㄧ殑鐢靛鍙互鍦ㄦ瘡娆￠噰鏍风殑鏃跺€欐彁渚涘揩閫熺殑鍏呮斁鐢碉紝鎻愰珮瀹冪殑绮惧害銆備竴鑸珹DC澶栭儴閮戒細鏈夎繍鏀炬潵椹卞姩锛屾墍浠ョ數瀹逛笉浼氬奖鍝嶄繚鎸佹椂闂淬€�	[2006-2-28 11:16:35]
[闂細shandong]	涓轰簡闄嶄綆鍣０鍦ㄥ竷PCB鏉挎柟闈㈠簲娉ㄦ剰閭ｄ簺闂.
[绛旓細Troy]	I suggest using a 4-layer board. One internal layer is ground, and the other internal layer is power. We recommend using separate digital and analog ground and power planes. Many times, you can use a split plane to keep digital currents separate from analog currents. This greatly improves noise performance.	[2006-2-28 11:17:11]
[闂細cola]	AD锛橈紣锛擄紤鏄竴涓緢濂界殑淇″彿璋冪悊杩愭斁锛屽畠鍏蜂綋鍙互瀹炵幇鍝簺璋冪悊锛�
[绛旓細Haoran]	AD8031淇″彿甯﹀鍜屽櫔澹板弬鏁伴兘姣旇緝濂斤紝鎵€浠ュ彲浠ヤ綔涓哄墠绔俊鍙风殑澶勭悊浠ュ強鍙傝€冪數鍘嬬殑椹卞姩銆�	[2006-2-28 11:17:48]
[闂細ddac87]	鏀惧ぇ鐢佃矾鐨勯瀹介棶棰�: 鎴戜滑鐭ラ亾寮曞叆璐熷弽棣堝彲浠ユ嫇灞曟斁澶у櫒棰戝. 閭ｅ鏋淥P-AMP鐨凚W鏄�3MHZ, 鏄惁鐢ㄨ繖OP-AMP鏋勬垚鐨勬斁澶у櫒鐨勯瀹藉彲浠ヨ揪鍒版洿瀹�,濡�4MHZ ?
[绛旓細Mariah]	I don"t think using the negative feedback can make the bandwidth of the amplifier larger.	[2006-2-28 11:18:06]
[闂細pulan]	璇烽棶鏈夋病鏈夎緭鍏ヨ寖鍥翠负0-10V鐨勫樊鍒�12BIT鐨凙D
[绛旓細Mariah]	What is the sample rate you want?	[2006-2-28 11:18:19]
[闂細hzluoping]	闄嶄綆鍩哄噯鐢靛帇鏄惁鑳芥彁楂樺垎杈ㄧ巼
[绛旓細Haoran]	涓嶅彲浠ワ紝ADC鐨勫垎杈ㄧ巼涓€鑸兘鏄浉瀵逛簬瀹冭瀹氱殑鍙傝€冪數鍘嬨€�	[2006-2-28 11:18:29]
[闂細gsdiscover]	鎴戜娇鐢ㄧ殑AD620锛岃瀹氱殑鏀惧ぇ鍊嶆暟涓�10鍊嶏紝瀵逛簬姝ｈ緭鍏ヤ俊鍙凤紝杈撳叆杈撳嚭涔嬮棿鍏崇郴闈炲父绾垮舰锛屾晥鏋滃緢濂斤紝鍙槸璐熷悜淇″彿杈撳叆鏃讹紝灏忎俊鍙凤紙0.08V浠ヤ笅锛夋椂鏀惧ぇ鏁堟灉涔熷緢濂斤紝绾垮舰搴︿篃琛岋紝浣嗘槸淇″彿寮哄害瓒呰繃0.08V鏃�,鍏惰緭鍑哄氨涓嶅啀鍙戠敓鍙樺寲锛屽缁堟槸0.823V宸﹀彸锛屽ソ鍍忔槸鏀惧ぇ鍚庣殑淇″彿琚柀娉簡,鍑虹幇浜嗗け鐪燂紝鎴戠殑渚涚數鐢靛帇涓�+-12V锛岃緭鍑�5鑴歊EF鎺ュ湴浜嗭紝璇风粰鍑鸿В鍐冲姙娉曪紵锛�
[绛旓細Mariah]	What is your input common mode voltage?	[2006-2-28 11:19:28]
[闂細ecnanjing_EBY7E]	鍦ㄥ仛鐜繚娴嬮噺璁惧涓�,閫氬父鍓嶇鐨勪俊鍙峰鏄痯A绾х殑,璇烽棶閫夌敤AD浠€涔堟牱鐨勬斁澶у櫒鏈€涓洪€傚悎?
[绛旓細Troy]	The AD8691 is an excellent amplifier for many applications.	[2006-2-28 11:19:29]
[闂細zcs_1]	DA鍚庨潰鐨勬姉娣峰彔婊ゆ尝鍣ㄦ€庝箞璁捐鏁堟灉浼氭瘮杈冪悊鎯筹紵
[绛旓細Jing]	It"s depend on your application such as the Fc or BPF bandwidth and settling time. You can use our web fliter design tools to select your corresponding filter .	[2006-2-28 11:20:26]
[闂細cqz]	鎴戞娴嬭绋嬩紶鎰熷櫒,浣跨敤澶栭儴鐨勭嚎鎬ф粦鍔ㄧ數闃�,瑕佹眰閲囨牱棰戠巼20K,鍒嗚鲸鐜�12bit璇烽棶ADI鏈変粈涔堝悎閫傜殑瑙ｅ喅鏂规?SPI鎺ュ彛鐨凙D鏈変箞,姝ゅ杩愭斁涓嶢D闂寸殑RC鎬庝箞閫夋嫨,瀹冨ソ鍍忛櫎浜嗗噺灏戝閮ㄥ櫔澹扮殑鎵板姩澶栦篃璺熷唴閮ㄧ殑寮€鍏抽噰鏍蜂繚鎸佺數瀹规湁鍏�.涓婅堪瑕佹眰楹荤儲缁欐垜涓狝DI鐨勮В鍐虫柟妗�,鍖呮嫭鍩哄噯婧�.鎬т环姣旈珮浜涚殑.
[绛旓細Xiangquan]	I"m not sure your exact application, but for 12 bit, 20ksps sampling rate ADC, you can choose AD7920, which is a low cost ADC, doesn"t need external reference; For the low pass filter design, the simple one order RC filter is enough, which fc=1/(2piR*C)	[2006-2-28 11:20:29]
[闂細sxfs1984]	鎬庢牱瑙ｅ喅鏁版嵁閲囬泦鎴朅DC涓殑鐢电骞叉壈闂锛�
[绛旓細Troy]	The best way to solve electro-magnetic interference (EMI) is surrounding the circuit with a metal shield. Keep all trace lengths short. Using a ground plane will also help. Where possible, use differential signals. Most ADCs today are differential input for this reason.	[2006-2-28 11:21:46]
[闂細life1313]	Can you advise a device for me to replace ADC DEVICE of TVP5150A which is TI product
[绛旓細Wenshuai]	ADV7181 or ADV7180. 鎮ㄧ粰鍑烘洿璇︾粏鐨勮姹傜殑璇濓紝鎴戜滑鍙互缁欐偍閫夋嫨鏇村悎閫傜殑浜у搧銆備篃鍙互鑱旂郴800 810 1742	[2006-2-28 11:22:37]
[闂細jiaguowei]	ADC鎴朌AC濡備綍閫夋嫨鏁板瓧鍦板拰妯℃嫙鍦扮殑鍏卞湴鐐癸紝浠ュ噺灏戞暟瀛楀湴瀵规ā鎷熷湴鐨勫奖鍝嶏紵
[绛旓細Jing]	You can seperate digital GND and analog GND if the digital noise is large. You can also look ADC/DAC"s digital GND as analog GND if the digital noise and current is very large . You can combine digital and analog GND together in one point. How to select the point is key . You can select the minimun digital current circul and analog circul and combine it here together. Thanks!	[2006-2-28 11:23:51]
[闂細鍚夋槦]	ADC浜у搧缁欏嚭鐨勬暟鎹弬鏁癊NOB涓庡疄闄呰宸澶�
[绛旓細Mariah]	The ENOB is exactly what we measured. It depends on your system design.	[2006-2-28 11:24:08]
[闂細cola]	鑳藉惁浠嬬粛鍑犵锛★激锛╁楂樼簿搴︼肌锛わ迹杩涜娴嬭瘯鐨勬柟娉曪紵鍏朵紭鍔ｅ張鍦ㄥ摢閲岋紵璋㈣阿锛�
[绛旓細Haoran]	瀵归潤鎬佸弬鏁帮紝杈撳叆鐩存祦淇″彿瑕佷繚鎸侀珮绮惧害锛岀劧鍚庝綘鍙互娴嬪嚭INL锛孌NL杩樺彲浠ュ緱鍒版煴鐘跺浘銆� 瀵瑰姩鎬佸弬鏁帮紝杈撳叆浜ゆ祦淇″彿瑕佷繚鎸侀珮绮惧害锛屾椂閽熶篃瑕佸鑰冭檻锛屽仛FFT鍒嗘瀽锛屽彲浠ュ緱鍒癝NR鍜孍NOB銆�	[2006-2-28 11:24:29]
[闂細dengyt]	璇烽棶涓撳,鎮ㄥ鏀惧ぇ鍣ㄦ俯搴﹁ˉ鍋挎柟娉曟湁浣曡瑙�?
[绛旓細Troy]	It is very difficult to compensate an amplifier for temperature drift. Each amplifier is different. We suggest using a low-drift amplifier for precision applications. For example: AD8628 or AD8661.	[2006-2-28 11:24:59]
[闂細yz_yjg]	鏈夋病鏈夊彲鑳界敤鍒嗗帇鍣ㄦ垨鍒殑鏂规硶鏉ヨ幏寰椾綆鐢靛帇鐨勭數鍘嬪熀鍑嗘簮?
[绛旓細Haoran]	ADI 鏈夊緢瀹借寖鍥寸殑杈撳嚭鐢靛帇锛屼粠1V鍒�10V閮芥湁銆�	[2006-2-28 11:25:59]
[闂細roboy]	鎴戦€夌敤鐨凙D杞崲鍣ㄦ槸AD7457锛岃繖鏄竴涓樊鍒嗚緭鍏ョ殑杞崲鍣紝鍋囪淇″彿鐨勯┍鍔ㄨ兘鍔涜冻澶熷己锛屾垜鏄惁鍙互鐩存帴鎶婂閮ㄨ緭鍏ヤ俊鍙风殑淇″彿鍦扮洿鎺ユ帴鍒皏in-锛岃€屼俊鍙锋帴鍒皏in+锛屼粠鑰屼笉鐢ㄥ樊鍒嗚繍鏀撅紵銆�
[绛旓細Jing]	If the input signal is large enough , you can do this. But I still recommend that you use a differential AMP that will promote CMRR and you can also condition your input signal commond voltage to the middle of the ADC input voltage and add some LPF to minimize noise.	[2006-2-28 11:26:39]
[闂細dengyt]	鏀惧ぇ鍣ㄧ殑杈撳嚭鐭矾淇濇姢鑳藉姏濡備綍?鍦ㄨ璁′笂濡備綍鑰冭檻杩囪浇鑳藉姏?
[绛旓細Troy]	Most amplifiers have output short-circuit protection. This prevents the amplifier from damaging itself if the output is shorted to ground. Our engineers design special circuits to detect if there is a lot of output current. The amplifier turns off its output stage in such a condition. Output short-circuit protection is quite reliable.	[2006-2-28 11:27:33]
[闂細wzj0713]	鎴戜滑鐜板湪鏈変竴涓暟瀛楀満寮轰华鐨勮璁★紝鐩墠姝ｅ湪瀵逛俊鍙风殑鍓嶇骇杈撳叆浣滆皟鐞嗭紝杈撳叆淇″彿鏄竴涓娉簩鏋佺閲囧埌鐨勫ぇ灏哄害鐢垫祦淇″彿锛屽悜璇㈤棶濡備綍灏嗚繖涓€淇″彿钘曡繘鎴戜滑鐨勭洰鏍囩數璺彲浠ヤ娇灏忎俊鍙蜂笉琚饭娌″湪鍣０閲岋紵
[绛旓細Xiangquan]	Could you please send the circuit and your questions to china.support@analog.com? thanks	[2006-2-28 11:27:46]
[闂細yanmings]	楂樿緭鍏ラ樆鎶椼€佷綆鍋忕疆鐢垫祦鐨勮繍鏀惧湪浣跨敤鏃堕渶瑕佹敞鎰忎粈涔堬紵璋冮浂鐢佃矾鏄惁蹇呴』锛�
[绛旓細Jing]	This kind of AMP always interface with current inout signal and you should also pay attentation to the voltage offset and BGP of the AMP. If you want to get better performance, you should add selt calibration circuit to minimize the Ibias both in software of in hardware. Thanks!	[2006-2-28 11:28:54]
[闂細luckywin]	宸姩鏀惧ぇ鍣ㄥ拰宸垎鏀惧ぇ鍣ㄤ粈涔堝尯鍒�?宸垎鏀惧ぇ鍣ㄦ槸鐢ㄦ潵骞蹭粈涔堢殑,鍝噷鏈夊畠鐨勫熀鏈師鐞�
[绛旓細Rui]	宸姩鏀惧ぇ鍣紝Difference amplifer 鍙互鍦ㄥ緢楂樼殑鍏辨ā鐢靛帇鐨勫樊鍒嗕俊鍙蜂腑锛屾彁鍙栧嚭宸垎淇″彿銆備紶閫掑嚱鏁颁负 Vout=(V+IN)-(V-IN) 宸垎鏀惧ぇ鍣� Differential amplifer 鎸囪緭鍏�/杈撳叆鍧囦负宸垎淇″彿鐨勬斁澶у櫒銆傚鐩婄敱澶栨帴鐢甸樆璁剧疆瀵逛簬宸姩鏀惧ぇ鍣紝璇峰弬鑰傾D629鏁版嵁鎵嬪唽銆傚浜庡樊鍒嗘斁澶у櫒锛岃鍙傝€傾D831*绯诲垪	[2006-2-28 11:29:12]
[闂細jlwg]	鎴戝湪鍋氱О閲嶇郴缁熸椂锛岀數妗ヤ紶鎰熷櫒闇€瑕�10v鐨勬縺鍔辩數鍘嬶紝鎴戠殑鍋氭硶鏄妸ad7710鑷甫鐨�2.5v鐢靛帇婧愪綔涓烘爣鍑嗙數鍘嬫簮,骞朵笖灏嗗叾鎺ュ埌杩愭斁op07鐨勮緭鍏ヤ笂锛岀粡鏀惧ぇ鎴�10v鍚庡啀鎺ュ埌浼犳劅鍣ㄤ笂浣滀负浼犳劅鍣ㄧ殑婵€鍔辨簮銆傝闂繖鏍蜂娇鐢ㄥ彲涓嶅彲浠ワ紵瀵硅浆鎹㈢簿搴︽湁鏃犱笉鑹奖鍝嶏紵
[绛旓細Mariah]	You can use OP07 to generate the 10V excitation voltage of the bridge. But you should think about the error which OP07 would bring, for example, temp drift. Also the current driving capacility of OP07 should be considered. If the output current of OP07 is not enough, you have to use a transistor to dirve.	[2006-2-28 11:31:02]
[闂細xurn]	璇烽棶鏈夋病鏈夛紥锛庯紩锛剁殑甯︽亽娓╃殑鍩哄噯婧愶紵鏈夋病鏈夛紤锛樹綅浠ヤ笂鐨勫弻鏋佹€ц緭鍏ャ€侊紤锛愶紣锛互涓婄殑杞崲閫熺巼鐨勶肌锛わ迹鑺墖锛� 杈惧埌锛戯紭浣嶄互涓婄殑绮惧害锛屽弻鏋佹€ц緭鍏ヨ浆宸垎濡備綍瀹炵幇锛�
[绛旓細Haoran]	ADR431 is 2.5V output reference. until now, we have no bipolar input 18bit ADC, but you can use bipolar amplifier to attenuate signal to 0~5V, then use 18bit ADC. you can find schematic in this presentation, which can be download in ADI website.	[2006-2-28 11:31:17]
[闂細jnfxt95]	鎴戠敤杩嘇D7730淇″彿璋冪悊鍣紝鐢ㄤ簬琛″櫒璁捐锛屾€ц兘鎸囨爣闈炲父濂斤紙鐗瑰埆鏄け璋冩俯搴︽紓绉诲緢灏忥紝姣擜D7710濂藉緢澶氾級銆備絾AD7730鏄�1998骞寸殑浜у搧锛屼环鏍兼湁浜涜吹銆侫DI杩戝嚑骞存湁娌℃湁鎺ㄥ嚭鐢ㄤ簬琛″櫒鐨勬柊浜у搧锛�
[绛旓細Mariah]	AD7799 is the new product with high precision and highly recommended to use in weigh scale design.	[2006-2-28 11:31:49]
[闂細yanmings]	鍦ㄥ急淇″彿鏀惧ぇ鍣ㄤ腑锛屽浣曢檷浣庣數婧愬紩璧风殑鍣０锛�
[绛旓細Jing]	For small signal, You should select low Voltage offset and I bias AMP such as AD8528,AD8555 etc. If the power supply is the major noise source, I suggest you select a linear voltage source instead of switching power supply. You can also filter the power supply using Pi filter and de-coupler capacitor is very inportant, please select the low ESR capacitor in your application and ensure the voltage ripple less than 1/10 of your signal.	[2006-2-28 11:32:27]
[闂細hzluoping]	绾充紡绾х洿娴佷俊鍙锋斁澶ф槸鐨勫鐩婂甫瀹界Н濡備綍璁＄畻
[绛旓細Rui]	鐩存祦淇″彿鏀惧ぇ鐨勬椂鍊欎笉闇€瑕佽€冭檻澧炵泭甯﹀绉殑闄愬埗銆� 澧炵泭甯﹀绉负淇″彿鏀惧ぇ鍊嶆暟涔樹互淇″彿棰戠巼銆�	[2006-2-28 11:33:22]
[闂細dengyt]	濡備綍鍑忓皯宸垎鏀惧ぇ鍣ㄧ殑杈撳叆淇″彿骞叉壈?
[绛旓細Haoran]	it is hard to understand you question. you can contact 800-810-1742 for detail explaination.	[2006-2-28 11:33:37]
[闂細鐭虫灄鑹砞	鏃堕挓鐨勯€夋嫨鐢ㄦ寮︽尝杩樻槸鏂规尝姣旇緝濂斤紵
[绛旓細Mariah]	Can you give the specific application? It would be different in different applications.	[2006-2-28 11:33:43]
[闂細engronger]	鏀惧ぇ鍣ㄦ湁鏃朵細鍑虹幇鑷縺鍜屾潵鑷閮ㄧ殑骞叉壈,濡備綍閬垮厤?
[绛旓細Troy]	If you are refering to electro-magnetic interference (EMI), the best way to avoid it is to enclose the circuit in a metal shield or box. Keep all signal trace lengths short and use a ground plane if possible. Transmit signals differentially to reduce any noise the traces pick up between the amplifier and the ADC.	[2006-2-28 11:33:43]
[闂細xiexinpo]	璇烽棶锛氬湪ADI鐨凙DC Demo board 涓湁鐨勬ā鎷熷湴鍜屾暟瀛楀湴鐢ㄤ竴鍙狥errite Bead 鐩歌繛锛岃€屾湁鐨勫垯鐩存帴鐩歌繛锛岃繖涓ょ鏂规硶鍖哄埆鍙堝澶э紵閭ｇ鏇村ソ浜涳紵璋㈣阿锛�
[绛旓細Jing]	I think a Ferriet Bead should be better to monimize the interter between digital GND and analog GND.	[2006-2-28 11:34:07]
[闂細253760]	鎴戠敤AD872鍋氶棿闅旀€ф暟鎹噰闆嗭紝闇€瑕丄D閲囬泦鏃舵墠缁欐椂閽熶俊鍙峰埌AD872鐨勬椂閽熺锛屾瘮濡傝繛缁粰1K涓�5Mhz鏃堕挓鑴夊啿锛屽墠30涓剦鍐查噰闆嗙殑缁撴灉鎬绘槸涓嶅锛屽彲鑳芥槸浠€涔堝師鍥�?
[绛旓細Xiangquan]	you can try to keep the ADC continuously, it may be the ADC need time to set up	[2006-2-28 11:34:35]
[闂細hznetwork]	鑳藉惁鎻愪緵鐩稿叧鐨勬妧鏈祫鏂欎互鍙婅璁℃渚�
[绛旓細Rui]	璇烽棶鎮ㄩ渶瑕佺浉鍏充粈涔堢殑鎶€鏈祫鏂欙紵濡傛灉闇€瑕佹洿璇︾粏鐨勫府鍔╋紝璇锋墦800-810-1742锛屾垨鑰呭彂閭欢鍒癱hina.support@analog.com瀵绘眰甯姪	[2006-2-28 11:35:09]
[闂細pulan]	璇锋帹鑽愬嚑娆剧數琛ㄨ閲忚姱鐗囥€備粙缁嶄竴涓�
[绛旓細Jing]	single phase:ADE7751/3/5 three phase : ADE7752/4/8 anti-theft: ADE7751/ADE7761	[2006-2-28 11:35:10]
[闂細ypqecum]	濡備綍瀵圭數鍘嬪熀鍑嗘簮鐨勬俯婕傝繘琛岃ˉ鍋�?
[绛旓細Troy]	It is very difficult. Each part is different. We recommend using a low drift amplifier or low drift amplifier for precision applications.	[2006-2-28 11:35:15]
[闂細leontree]	閫夋嫨AD7789鍜�779X鏃讹紝鑳介€夋嫨鐨勬渶閫傚綋鐨勫弬鑰冨熀鍑嗘簮鏄摢鍑犳
[绛旓細Mariah]	ADR43x, AD780. You can use the reference wizard tool recommended in the presentation to select the exact part which can meet all of your specific requirement.	[2006-2-28 11:35:17]
[闂細pulan]	AD杈撳叆鍓嶇鏄�0-10V鐨勪俊鍙凤紝閲囩敤鐢甸樆鍒嗗帇鐨勬柟寮忎細瀵圭簿搴︽湁浣曞奖鍝嶏紵涓撳鏈変粈涔堝ソ鐨勫缓璁紵
[绛旓細Troy]	The voltage will be as accurate as the tolerance of the resistors. 1% resistors will result in 1% voltage accuracy.	[2006-2-28 11:37:01]
[闂細pulan]	鐜板湪鐨凙D鑺墖瀵归潤鐢佃姹傞珮鍚楋紵杩樻湁鐒婃帴杩欎簺鏄惁浼氬AD閫犳垚鑷村懡浼ゅ锛�
[绛旓細Xiangquan]	almost all our parts have ESD protection in internal structure, soldering commonly can not destroy the parts, but we highly recommend you power off the soldering equipment during soldering	[2006-2-28 11:37:03]
[闂細roboy]	ADI鏈夋病鏈夎兘瀵筽A绾у急鐢垫祦杩涜鏀惧ぇ鐨勫櫒浠讹紵璋㈣阿锛�
[绛旓細Haoran]	AD8605/6/8 are good recommendation to you.	[2006-2-28 11:37:11]
[闂細caitouc]	24浣岮DC闇€瑕佷粈涔堟牱绮惧害鐨勫熀鍑嗙數鍘嬫簮?
[绛旓細Mariah]	The most concern is the temperature drift and noise performance.	[2006-2-28 11:38:05]
[闂細shandong]	璇锋帹鑽愬嚑娆鹃珮绮惧害楂橀€熷害鐨凙DC鑺墖?
[绛旓細Mariah]	Would you please give the specification in details.	[2006-2-28 11:38:38]
[闂細ypqecum]	濡備綍娑堥櫎EMI瀵瑰熀鍑嗙數鍘嬫簮鐨勮緭鍑哄櫔闊崇殑褰卞搷?
[绛旓細Troy]	We recommend keeping the circuit inside a metal shield or box. Use a low noise ground plane underneath the voltage reference. Use a 0.1uF ceramic capacitor on both the input and output pins of the voltage reference. You can add an additional 1nF capacitor in parallel - smaller capacitors are better for reducing higher frequency noise.	[2006-2-28 11:39:27]
[闂細mayongtao]	璇烽棶ad6644鐢ㄤ粈涔堟斁澶у櫒鏉ラ┍鍔紵
[绛旓細Jing]	You can use AD8138 to drive it. Thanks!	[2006-2-28 11:40:20]
[闂細gsdiscover]	濡傛灉涓€涓祴璇曠郴缁熺殑浼犳劅鍣ㄨ緭鍑虹數鍘嬭寖鍥翠负0-0.5v,绮惧害涓�0.5mv,閲囩敤12浣岮/D杞崲鍣�,搴旇閫夌敤鐨勬斁澶у櫒澧炵泭涓哄灏�?
[绛旓細Jing]	If the input range of the ADV is 0--Vref, you can select a gain of 5 and Rail to rail amp to drive it such as AD8027	[2006-2-28 11:41:54]
[闂細kivin_G]	鐢靛帇鍩哄噯婧愭祦鍑哄拰鍚稿叆鐢垫祦鐨勮兘鍔涜鐣欐湁澶氬ぇ鐨勫瘜浣欓噺?
[绛旓細Troy]	Very little. Most references require less than 1mA of supply current. Refer to the datasheet for supply current specs.	[2006-2-28 11:42:27]
[闂細shandong]	瀵逛簬楂橀€熺殑ADC鍦ㄥ竷PCB鏉挎椂,濡備綍闄嶄綆鍣０,淇濊瘉鑹ソ鐨勭簿搴�.
[绛旓細Mariah]	You can send an email to china.support@analog. Then we can send the application note talking about the details of high speed circuit layout.	[2006-2-28 11:43:04]
[闂細boclandc]	鐜板湪鎴戦€夌敤AD7655,杈撳叆淇″彿宸垎淇″彿,鐜板湪鎴戦€夌敤AD620鍋氶┍鍔ˋD7655,鏄惁鍚堢悊,鏈夋病鏈夋洿浼樼殑鏂规?璋㈣阿!!
[绛旓細Haoran]	AD8221 is better one that can be replace AD620.	[2006-2-28 11:44:37]
[闂細kivin_G]	鍦ㄥ苟鑱旂數鍘嬪熀鍑嗘簮鏃�,闇€瑕佽€冭檻鐨勫洜绱犳湁閭ｄ簺?鑳藉惁鎺ㄨ崘涓€浜涢€傚悎骞惰仈鐨勭數鍘嬪熀鍑嗘簮浜у搧鍨嬪彿?
[绛旓細Troy]	We do not offer any combined voltage references. I don"t know of any disadvantage to offering a combined reference. We just haven"t offered one before.	[2006-2-28 11:44:39]
[闂細callhxw]	浣跨敤澶栭儴鍩哄噯婧愭椂锛屾帹鑽愪负1.25V锛岃€屼娇鐢ㄦ椂閲囩敤1.2V锛屽叾浠栧弬鏁扮浉鍚屻€傝闂兘鍚﹁揪鍒拌姹傦紵杞欢澶勭悊濡備綍锛�
[绛旓細Mariah]	First, you need to check whether the converter can accept 1.2V voltage input. In your software, you also need to change the full scale point.	[2006-2-28 11:44:50]
[闂細msshen2003]	閫夋嫨绮惧瘑ADC鍣ㄤ欢鐨勫師鍒欐槸浠€涔堬紵
[绛旓細Mariah]	Offset, noise, linearity and etc.	[2006-2-28 11:45:47]
[闂細engronger]	杩愮畻鏀惧ぇ鍣ㄥ湪浣跨敤鐨勬椂鍊欎細鏈夐浂婕傜殑鐜拌薄,璇烽棶璋冩暣闆舵紓鏈変粈涔堝ソ鐨勫姙娉�?
[绛旓細Troy]	Use an auto-zero amplifier. AD8628 is an excellent choice.	[2006-2-28 11:46:02]
[闂細鐭虫灄鑹砞	AD6644鍩哄噯鍙傝€冩簮鐨勮緭鍏ョ數娴佹湁瑕佹眰鍚楋紵
[绛旓細Jing]	No special requirement, there is a BUF in our AD6644 that will promote the deiven ability .	[2006-2-28 11:46:07]
[闂細woodxp]	鐩存祦淇″彿鍜屼氦娴佷俊鍙风殑閲囬泦涓垎鍒渶瑕佹牴鎹摢浜涘弬鏁版潵閫夋嫨鍚堥€傚瀷鍙风殑ADC濡傚湪楂樼簿搴︾殑浣庨淇″彿娴嬮噺涓拰鍥惧儚閲囬泦闇€瑕佹€庝箞鑰冭檻锛熷浣曡绠楀拰娴嬮噺瀹為檯鐢佃矾涓瑼Dc鐨勭簿搴︼紵ADc鐨勭簿搴﹀拰鍒嗚鲸鐜囨湁浣曞叧绯伙紵鍦ㄤ笉鑰冭檻鎴愭湰鐨勬儏鍐典笅鏄笉鏄噺鍖栦綅鏁拌秺楂樿秺濂斤紵
[绛旓細Xiangquan]	For ADC selection, mainly according the signal BW and your precision requirements, for low speed signals, you can select sigma-delta ADCs if the precision requirments are high, for video applications, we have video ADCs and video decorders like ADV7180; For ADC precision measurements, you can measure the peak to peak resolution of your system, the ADC bits don"t equal precision, you can send a email to china.support@analog.com for these concepts	[2006-2-28 11:46:28]
[闂細gsdiscover]	鎴戞兂闂竴涓嬫湁浠€涔堟柟娉曡兘鎻愰珮AD鐨勫姩鎬佽寖鍥�
[绛旓細Jing]	No better solution. One special ADC has it"s fixed maximum dynamic range according to it"s specifaciton and datasheet. Thanks!	[2006-2-28 11:47:59]
[闂細yuke]	浣犱滑鍝殑A/D鍙互浣庣數鍘嬪伐浣滃悧.鑰楃數鎬庝箞鏍�,鏈夋病鏈夊儚MSP430鐨勪綆鍔熻€楀晩,鍙笉鍙互缁欐垜鍑犲潡A/D鍟�,鎴戠幇鍦ㄦ鎯冲簲鐢ㄤ簬寮犲姏鎺у埗,涓庢俯搴﹂噰鏍�.(:鎴愬姛鐨勮瘽閲忓ぇ.
[绛旓細Xiangquan]	I"m not sure the voltage you require, some of our ADCs can work under very low voltage, like AD7466, which can work under 1.6v power supply, if you want to measure pressure and temperature, you can try AD7799, which is a low power dissipation part; for sample application, pleas visit www.analog.com for free sample request	[2006-2-28 11:49:27]
[闂細luckywin]	璇锋暀,鎴戣鐢ㄨ繍鏀捐璁′竴涓皠鏋佽窡闅忓櫒,浣滀负闅旂鐢佃矾锛屼絾瑕佷繚璇侀渶瑕佺殑涓績棰戠巼21MHz锛屽甫瀹�4MHz鐨勪俊鍙蜂笉琚护鎺夛紝璇烽棶鐢ㄤ粈涔堟斁澶у櫒姣旇緝濂藉晩
[绛旓細Jing]	You can use our Analog filter Wizard to for a BPF such as AD8027,AD8221 etc	[2006-2-28 11:50:30]
[闂細鍚夋槦]	AD8067鑳藉惁鍝嶅簲涓婂崌鏃堕棿锛戯紣鐨勯挓褰㈣剦鍐诧紟鑻ヤ笉鑳借鎺ㄨ崘涓€涓瀷鍙凤紟
[绛旓細Troy]	The AD8067 rise time is close to 10ns and has a slew rate of 650V/us. You should examine the AD8099 amplifier as well. Refer to the ADI website at www.analog.com.	[2006-2-28 11:50:45]
[闂細yanmings]	璇烽棶鍦ˋDC鍓嶇骇鐨勬斁澶у櫒鏀惧ぇ绾挎€у害涓嶅ソ鏃跺簲濡備綍杩涜璋冭妭?
[绛旓細Xiangquan]	You"d better select a right amplifer, as it"s hard to compensate	[2006-2-28 11:50:56]
[闂細honghai_zhu]	鍩哄噯鐢靛帇婧� 鏈夊摢浜涘€煎緱鍏虫敞鐨勬寚鏍�?
[绛旓細Jing]	Initial accuracy, reference voltage and temperature drift is important.	[2006-2-28 11:51:09]
[闂細hanxin]	鍦ㄩ€夋嫨鍓嶇杩愭斁鐨勬椂鍊�,鏈変釜鍙傛暟鍙�"鎽嗙巼",浠€涔堟牱鐨勭郴缁熼渶瑕佷粈涔堟牱鐨勬憜鐜囧摢?姣斿AD7865鍓嶇浣跨敤妯℃嫙寮€鍏�,鍦ㄧ數鍔涚郴缁熷簲鐢ㄩ渶瑕侀€夋嫨杩愭斁鐨勮瘽,涓€鑸渶瑕佷粈涔堟牱鐨勬憜鐜囩殑杩愭斁?
[绛旓細Mariah]	The slew rate depends on the signal frequency and amplitude.	[2006-2-28 11:52:08]
[闂細jessiesong]	what"s the most important parameter in choosing reference for ADC?
[绛旓細Troy]	It depends. Initial accuracy is usually important. So is drift over temperature. 16+ bit applications may require low noise. Portable applications need low supply current. I find to many customers, the most important parameter is price!	[2006-2-28 11:52:13]
[闂細253760]	鎴戦渶瑕丄DC闂撮殭鎬у伐浣滐紝鍥犳涔熼棿闅欐€х粰鏃堕挓锛岄渶瑕侀噰闆嗘椂鎵嶇粰鏃堕挓锛岃繖鏍锋槸鍚︽湁鍒╀簬鍑忓皯鍔熻€楋紝浣嗚繖鏍蜂細甯︽潵浠€涔堥棶棰�
[绛旓細Jing]	You can do that. But please pay attentation to the clock jitter and settling time . You should ensure the clock is stable for ADC, then you can sample the input signal. By the way, fast switching should also result some noise for your system. Thanks!	[2006-2-28 11:53:09]
[闂細zhouyl]	璇烽棶鎴戠敤10bit鐨凙DC鑺墖闇€瑕侀珮绮惧害鐨勫弬鑰冪數婧愬悧锛�
[绛旓細Mariah]	You should calculate your system precision requirement and then select the suitable reference.	[2006-2-28 11:53:21]
[闂細鍚夋槦]	鑳藉惁鎺ㄨ崘楂橀樆鎶楋紝浣庤緭鍏ョ數瀹癸紝浣庡櫔澹扮殑鏀惧ぇ鍣紟
[绛旓細Troy]	I recommend using resistors with less than 200 ohms. Larger resistors contribute more noise. Amplifiers with less than 12nV/root(Hz) noise are considered low noise. There are many low priced low noise amplifiers you can buy, such as the AD8691 and AD8667.	[2006-2-28 11:55:36]
[闂細callhxw]	璇峰啀鍔犱笂ADC鏁版嵁杈撳嚭绋冲畾鏁版嵁涓庡垎杈ㄧ巼鍙婄簿搴︿箣闂寸殑瀹氫箟鍖哄埆锛�
[绛旓細Rui]	ADC鐨勫垎杈ㄧ巼鏄寚鍦ㄤ笉涓㈢爜鐨勬儏鍐典笅ADC鑳借揪鍒扮殑鏈€楂樼殑Bit鏁� ADC鐨勭簿搴︽槸鎸嘇DC鐨処NL鍜孌NL鐨勮宸€�	[2006-2-28 11:56:03]
[闂細cola]	璇烽棶锛氬熀鍑嗙數鍘嬫簮瀵癸肌锛わ迹鐨勭簿搴︾殑褰卞搷鍏蜂綋琛ㄧ幇鍦ㄥ摢閲岋紵
[绛旓細Troy]	The higher number of bits in the ADC, the greater the accuracy must be from the voltage reference.	[2006-2-28 11:56:28]
[闂細ecnanjing_EBY7E]	鍦ㄥ井淇″彿鏀惧ぇ鐢佃矾涓�,甯冪嚎銆佸嵃鍒风數璺澘鐨勬潗璐ㄣ€佺剨鎺ョ偣銆佷俊鍙锋帴鍏ュ鏁翠綋鎬ц兘鐨勫奖鍝嶅線寰€瓒呰繃浜嗘斁澶у櫒浠舵湰韬殑褰卞搷锛岃闂笓瀹跺浠ヤ笂褰卞搷锛岀壒鍒槸閮ㄧ嚎鏈変綍楂樿锛�
[绛旓細Mariah]	You can send an email to china.support, then we can send some techinical material on the PCB layout for high precision circuit.	[2006-2-28 11:57:18]

褰撳墠鐘舵€�: 搴ц皥宸茬粨鏉�
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