XL620

厂商：
XINLUDA(信路达)
封装：
SOP8_150MIL
描述：
低成本、高精度仪表放大器，失调电压50μV，失调漂移0.6V/℃

数据手册：

下载XL620.pdf

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数据手册
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XL620 数据手册

ＸＤ６２０ＤＩＰ８　ＸＬ６２０　ＳＯＰ８低功耗仪表放大器产品描述 XD/XL620是一款低成本、高精度仪表放大器，仅需要一个外部电阻来设置增益，增益范围为1至10000 此外，XD/XL620采用8引脚SOP和DIP封装，尺寸小于分立电路设计，并且功耗更低(最大工作电流仅 1.3mA)，因而非常适合电池供电及便携式(或远程)应用。 XD/XL620具有高精度(最大非线性度40 ppm).低失调电压(最大50 μV)和低失调漂移(最大0.6 μV/°C )特性，是电子秤和传感器接口等精密数据采集系统的理想之选。此外，XD/XL620还具有低噪声、低输入偏置电流和低功耗特性使之非常适合ECG和无创血压监测仪等医疗应用。由于其输入级采用Ｓｕｐｅｒβｅｔａ处理，因此可以实现最大１．０ｎＡ的低输入偏置电流。ＸＤ／ＸＬ　６２０在１　ｋＨｚ时具有９　ｎＶＮＶＨｚ的低输入电压噪声，在０．１　Ｈｚ至１０　Ｈｚ带宽上的噪声为０．２８　μＶ峰峰值，输入电流噪声为０．１ｐＡ／ＶＨｚ，因而作为前置放大器使用效果很好。ＸＤ／ＸＬ　６２０还非常适合多路复用应用，其０．０１％建立时间为１５μｓ，而且成本很低，足以实现每通道一个仪表放大器的设计。　　产品特性  易于使用增益通过一个外部电阻设置（增益范围：　１至１０，０００），宽电源电压范围（＋２．３　Ｖ至＋１８　Ｖ），性能高于３运放分立仪表放大器设计，采用８引脚ＤＩＰ和ＳＯＰ封装，低功耗，最大工作电流１．３　ｍＡ。  出色的直流性能（Ｂ级）输入失调电压：　５０　μＶ（最大值）；输入失调漂移：　０．６　μＶ／°Ｃ（最大值）；输入偏置电流：　１．０　ｎＡ（最大值）共模抑制比：　１００　ｄＢ（最小值，Ｇ＝　１０）。  低噪声输入电压噪声：　９　ｎＶ／ＶＨｚ　（１　ｋＨｚ）０．２８　μＶ峰峰值噪声（０．１　Ｈｚ至１０　Ｈｚ）带宽：　１２０　ｋＨｚ（Ｇ＝　１００）；０．０１　％建立时间：　１５　μ RG 1 -IN  数据采集系统  工业过程控制  电池供电便携式设备 20,000 6 OUTPUT XD/XL620 5 REF ＴＯＰ　ＶＩＥＷ图１．８引脚ＰＤＩＰ　（Ｎ）、ＣＥＲＤＩＰ　（Ｑ）和ＳＯＩＣ　（Ｒ）封装 15,000 ＸＤ／ＸＬ６２０Ａ 10,000 5,000 0 0 ＋ -Vs 4 ３　ＯＰ　ＡＭＰＩＮ－ＡＭＰ（３　ＯＰ－０７ｓ） 10 5 15 ＳＵＰＰＬＹ　ＣＵＲＲＥＮＴ　（ｍＡ）图２．三运放分立仪表放大器设计与ＸＤ／ＸＬ６２０比较 20 ＲＴＩ　ＶＯＬＴＡＧＥ　ＮＯＩＳＥ　（０．１–　１０Ｈｚ）　（μＶ　ｐ－ｐ）  传感器接０ 25,000 ００７７５－０－００２　ＴＯＴＡＬ　ＥＲＲＯＲ，　ＰＰＭ　ＯＦ　ＦＵＬＬ　ＳＣＡＬＥ  电子秤  ECG和医疗仪器 +IN 3 30,000 7 +Vs 2 10,000 1000 ＴＹＰＩＣＡＬ　ＳＴＡＮＤＡＲＤ　ＢＩＰＯＬＡＲ　ＩＮＰＵＴ IN-AMP 100 Ｇ　＝　１００ 10 XD/XL620　ＳＵＰＥＲβ ＥＴＡ　ＢＩＰＯＬＡＲ　ＩＮＰＵＴ IN-AMP 1 0.1 1K 10K 100K 1M 10M SOURCE RESISTANCE (Ω) 图３．总电压噪声与信号源电阻的关系．１ 100M 0775-0-003 应用领域 8 RG 00775-0-001  出色的交流特性ＸＤ６２０ＤＩＰ８　ＸＬ６２０　ＳＯＰ８ रຍࡀ߭ 25°CĂVS = ±15 VĂRL = 2 kΩ้‫ۆڦ‬႙ኵǈ༬՚ำ௽‫ྔأ‬ă ՗1 ֖ຕ ሺᅮ ሺᅮ‫ྷݔ‬ ሺᅮဃֶ1 G=1 G = 10 G = 100 G = 1000 ሺᅮ‫ݥ‬၍Ⴀ‫܈‬ G = 1–1000 G = 1–100 ሺᅮᇑ࿒‫࠲ڦ܈‬ဣ ฿ۙ‫ۉ‬უ ๼෇฿ۙǈVOSI ඇ࿒‫ྷݔ܈‬ ೝ਩࿒‫܈‬ဣຕ(TC) ๼‫؜‬฿ۙǈVOSO ඇ࿒‫ྷݔ܈‬ ೝ਩࿒‫܈‬ဣຕ(TC) ችࢇ‫ڟ‬๼෇‫ڦ܋‬฿ۙ ᇑ‫ۉ‬ᇸ‫࠲ڦ‬ဣ(PSR) G=1 G = 10 G = 100 G = 1000 ๼෇‫ୁۉ‬ ๼෇ೋዃ‫ୁۉ‬ ඇ࿒‫ྷݔ܈‬ ೝ਩࿒‫܈‬ဣຕ(TC) ๼෇฿ۙ‫ୁۉ‬ ඇ࿒‫ྷݔ܈‬ ೝ਩࿒‫܈‬ဣຕ(TC) ๼෇ ๼෇ፆੇ ֶ‫ݴ‬ ࠌఇ ๼෇‫ۉ‬უ‫ྷݔ‬2 ඇ࿒‫ྷݔ܈‬ ඇ࿒‫ྷݔ܈‬ XD/XL620 ཉॲ ፌၭኵ ‫ۆ‬႙ኵ ፌ‫ٷ‬ኵ G = 1 + (49.4 kΩ/RG) 1 10,000 VOUT = ±10 V 0.03 0.10 0.15 0.30 0.15 0.30 0.40 0.70 VOUT = −10 V዁+10 V RL = 10 kΩ 10 40 RL = 2 kΩ 10 95 ፌၭኵ XD/XL620 ‫ۆ‬႙ኵ ፌ‫ٷ‬ኵ ፌၭኵ XD/XL620 ‫ۆ‬႙ኵ ፌ‫ٷ‬ኵ ‫ڇ‬࿋ % % % % ppm ppm G=1 10 −50 ሺᅮ >12 (ችࢇ‫ڟ‬๼෇‫܋‬ጺဃֶ= VOSI + VOSO/G) 30 125 VS = ±5 V ዁ ± 15 V 185 VS = ±5 V ዁ ± 15 V VS = ±5 V 0.3 1.0 ዁ ± 15 V VS = ±15 V 400 1000 1500 VS = ± 5 V VS = ±5 V 2000 ዁ ± 15 V 5.0 15 VS = ±5 V ዁ ± 15 V ppm/°C ppm/°C μV μV μV/°C μV μV μV μV/°C VS = ±2.3 V ዁ ±18 V 80 95 110 110 100 120 140 140 0.5 3.0 0.3 dB dB dB dB 2.0 2.5 nA nA pA/°C nA nA pA/°C 1.0 1.5 1.5 10||2 10||2 VS = ±2.3 V −VS + 1.9 ዁ ±5 V −VS + 2.1 VS = ± 5 V −VS + 1.9 ዁ ±18 V −VS + 2.1 +VS − 1.2 GΩ_pF GΩ_pF V +VS − 1.3 +VS − 1.4 V V +VS − 1.4 V ２ＸＤ６２０ＤＩＰ８　ＸＬ６２０　ＳＯＰ８ ֖ຕ ࠌఇᅞ዆Բǈ DC዁60 Hzǈ 1 kΩ‫ݥ‬਩࢚႑ࡽᇸ G=1 G = 10 G = 100 G = 1000 ๼‫؜‬ ๼‫؜‬Ӧ‫ޗ‬ ཉॲ VCM = 0 V ዁ ± 10 V 73 93 110 110 RL = 10 kΩ VS = ±2.3 V ዁±5V ඇ࿒‫ྷݔ܈‬ VS = ±5 V ዁ ± 18 V ඇ࿒‫ྷݔ܈‬ ‫܌‬ୟ‫ୁۉ‬ ‫ۯ‬ༀၚᆌ ၭ႑ࡽ-3 dB‫੻ټ‬ G=1 G = 10 G = 100 G = 1000 უӦ୲ 0.01%ॺ૬้क़ G = 1–100 G = 1000 ሯำ ‫ۉ‬უሯำǈ1 kHz XD/XL620 ፌၭኵ ‫ۆ‬႙ኵ ፌ‫ٷ‬ኵ 3 ‫ڇ‬࿋ dB dB dB dB V +VS − 1.3 +VS − 1.4 V V +VS – 1.5 ±18 V mA 1000 800 120 12 1.2 kHz kHz kHz kHz V/μs 15 150 μs μs ችࢇ‫ڟ‬๼෇‫܋‬ጺሯำ= (e 2ni ) + (eno / G)2 9 72 13 100 nV/√Hz nV/√Hz 3.0 0.55 0.28 100 10 f = 1 kHz 20 50 VIN+, VREF = 0 60 +VS − 1.6 kΩ μA V 0.9 ±18 1.3 V mA 1.1 1.6 mA −VS + 1.6 1 ± 0.0001 ±2.3 VS = ±2.3 V ዁ ±18 V μV p-p μV p-p μV p-p fA/√Hz pA p-p °C -40዁+85 2 XD/XL620 ‫ۆ‬႙ኵ ፌ‫ٷ‬ኵ 10 Vօ৊ ඇ࿒‫ྷݔ܈‬ ‫ۨܮ‬࿒‫ྷݔ܈‬ 1 ፌၭኵ +VS − 1.2 −VS + 1.6 ๼෇ǈ‫ۉ‬უሯำǈeni ๼‫؜‬ǈ‫ۉ‬უሯำǈeno RTIǈ0.1 Hz዁10 Hz G=1 G = 10 G = 100–1000 ‫ୁۉ‬ሯำ 0.1 Hz዁10 Hz एጚ๼෇ R IN IIN ‫ۉ‬უ‫ྷݔ‬ ๼‫؜‬ሺᅮ ‫ۉ‬ᇸ ߾ፕ‫ۉ‬უ‫ྷݔ‬3 ৢༀ‫ୁۉ‬ 90 110 130 130 −VS + 1.1 −VS + 1.4 −VS + 1.2 0.75 XD/XL620 ፌၭኵ ‫ۆ‬႙ኵ ፌ‫ٷ‬ኵ փԈઔྔև‫ۉ‬ፆRG‫ڦ‬ᆖၚă ᅃୟ๼෇থ‫ں‬ăG = 1ă ᇑᆩઠࡀۨPSR༬Ⴀ‫ۉڦ‬ᇸ‫ۉ‬უ‫ྷݔ‬၎ཞă ３ＸＤ６２０ＤＩＰ８　ＸＬ６２０　ＳＯＰ８ XD/XL620ਨ‫ܔ‬ፌ‫ۨܮٷ‬ኵ ՗2 ֖ຕ ‫ۉ‬ᇸ‫ۉ‬უ ాևࠀࡼ1 ๼෇‫ۉ‬უ(ࠌఇ) ֶ‫ݴ‬๼෇‫ۉ‬უ ๼‫܌؜‬ୟ‫׼‬Ⴤ้क़ ٪‫ئ‬࿒‫(ྷݔ܈‬Q) ٪‫ئ‬࿒‫(ྷݔ܈‬N, R) ߾ፕ࿒‫ྷݔ܈‬ XD/XL620 ᆅগ࿒‫ྷݔ܈‬ (10௱ࡰথ) 1 ጀᅪǈ‫؜ג‬ᅜฉ໯ଚ‫ڦ‬ਨ‫ܔ‬ፌ‫ۨܮٷ‬ኵ੗ీ‫ڞ‬ዂഗॲᆦ৳ Ⴀ໦࣋ăኄኻ๟ഽۙ‫ۨܮڦ‬ኵǈփภतഗॲሞኄၵईඪࢆ ഄ໲ཉॲူ‫؜ג‬Ԩरຍࡀ߭ኸՔ‫ీࠀڦ‬Ⴀ֡ፕă‫׊‬೺ሞਨ ‫ܔ‬ፌ‫ۨܮٷ‬ኵཉॲူ߾ፕࣷᆖၚഗॲ‫ڦ‬੗੍Ⴀă ‫ۨܮ‬ኵ ±18 V 650 mW ±VS 25 V ࿄ۨ −65°C ዁ +150°C −65°C ዁ +125°C −40°C ዁ +85°C 300°C ኍ‫ܔ‬੣ഘዐ‫ڦ‬ഗॲܸჾǖ 8ᆅগ໒ଙ‫ހ‬ጎǖθJA = 95°C 8ᆅগCERDIP‫ހ‬ጎǖθJA = 110°C 8ᆅগSOP‫ހ‬ጎǖθJA = 155°C ESDয়ߢ! ESD(ৢ‫ߌ௺*ۉݣۉ‬ഗॲăৢ‫࢔ࢁۉۉ‬ඹᅟሞට༹ࢅ֪๬ยԢฉેओǈ੗ߛ‫ٳ‬4000 Vǈժ੗ీሞுᆶ ִਥ‫ڦ‬൧઄ူ‫ۉݣ‬ă৑࠶Ԩׂ೗ਏᆶጆᆩESDԍࢺ‫ۉ‬ୟǈ‫ڍ‬ሞᇜ‫ీߛڟ‬ଉৢ‫้ۉݣۉ‬ǈ੗ీࣷ݀ิ ᆦ৳Ⴀഗॲ໦࣋ăᅺُǈॺᅱ֑ൽ๢‫ڦړ‬ESD‫ٯݔݞ‬แǈᅜՆ௨ഗॲႠీူইईࠀీෟ฿ă ４ＸＤ６２０ＤＩＰ８　ＸＬ６２０　ＳＯＰ８ XD/XL620‫ۆ‬႙߾ፕ༬Ⴀ (25°CǈVS = ±15 VǈRL = 2 kΩ้, ༬՚ำ௽‫ྔأ‬ă) 2.0 50 1.5 40 INPUT BIAS CURRENT (nA) PERCENTAGE OF UNITS SAMPLE SIZE = 360 30 20 10 1.0 +IB –I B 0.5 0 –0.5 –1.0 0 40 80 INPUT OFFSET VOLTAGE (μV) 175 00775-0-008 –40 5 00775-0-009 –80 100k 00775-0-010 0 00775-0-005 –1.5 –2.0 –75 –25 25 75 TEMPERATURE (°C) 125 ཮8. ๼෇ೋዃ‫ୁۉ‬ᇑ࿒‫࠲ڦ܈‬ဣ ཮5. ๼෇฿ۙ‫ۉ‬უ‫ۆڦ‬႙‫ݴ‬ք཮ 2.0 50 CHANGE IN OFFSET VOLTAGE (μV) SAMPLE SIZE = 850 PERCENTAGE OF UNITS 40 30 20 0 –1200 –600 0 600 1200 INPUT BIAS CURRENT (pA) 00775-0-006 10 1.5 1.0 0.5 0 0 1 2 3 WARM-UP TIME (Minutes) 4 ཮9. ๼෇฿ۙ‫ۉ‬უՎࣅᇑᇨԢ้क़‫࠲ڦ‬ဣ ཮6. ๼෇ೋዃ‫ۆڦୁۉ‬႙‫ݴ‬ք཮ 1000 50 SAMPLE SIZE = 850 GAIN = 1 VOLTAGE NOISE (nV/ Hz) 30 20 10 100 GAIN = 10 10 GAIN = 100, 1,000 GAIN = 1000 BW LIMIT 0 –400 –200 0 200 INPUT OFFSET CURRENT (pA) 400 1 00775-0-007 PERCENTAGE OF UNITS 40 1 ཮7. ๼෇฿ۙ‫ۆڦୁۉ‬႙‫ݴ‬ք཮ 10 100 1k FREQUENCY (Hz) 10k ཮10. ‫ۉ‬უሯำ೷௢‫܈‬ᇑೕ୲‫࠲ڦ‬ဣ (G = 1−1000) ５ＸＤ６２０ＤＩＰ８　ＸＬ６２０　ＳＯＰ８ 10 1 10 100 FREQUENCY (Hz) 1000 00775-0-014 100 00775-0-011 CURRENT NOISE (fA/ Hz) 1000 ཮11. ‫ୁۉ‬ሯำ೷௢‫܈‬ᇑೕ୲‫࠲ڦ‬ဣ ཮14. 0.1 Hz዁10 Hz‫ୁۉ‬ሯำ(5 pA/ਗ਼‫)܈‬ 10,000 FET INPUT IN-AMP 1000 AD620A 100 10 1k 10k 100k 1M SOURCE RESISTANCE (Ω) 10M 00775-0-015 TIME (1 SEC/DIV) 00775-0-012 RTI NOISE (2.0μV/DIV) TOTAL DRIFT FROM 25°C TO 85°C, RTI (μV) 100,000 ཮15. ጺ೏ᅎᇑ႑ࡽᇸፆੇ‫࠲ڦ‬ဣ ཮12. 0.1 Hz዁10 Hz RTI‫ۉ‬უሯำ(G = 1) 160 140 RTI NOISE (0.1μV/DIV) 120 G = 1000 G = 100 G = 10 CMR (dB) 100 G=1 80 60 40 0 0.1 ཮13. 0.1 Hz዁10 Hz RTI‫ۉ‬უሯำ (G = 1000) 1 10 100 1k FREQUENCY (Hz) 10k 100k 1M ཮16. ‫ۆ‬႙CMRᇑೕ୲‫࠲ڦ‬ဣ(RTIǈଭ዁1 kΩ‫ݥ‬਩࢚႑ࡽᇸ) ６ 00775-0-016 00775-0-013 TIME (1 SEC/DIV) 20 ＸＤ６２０ＤＩＰ８　ＸＬ６２０　ＳＯＰ８ 180 35 160 30 G = 10, 100, 1000 G = 100 80 G = 10 60 G=1 1 10 100 1k FREQUENCY (Hz) 10k 100k 10 1M 0 G = 1000 1k 10k 100k FREQUENCY (Hz) ཮17. ኟPSRᇑೕ୲‫࠲ڦ‬ဣ(RTIǈG = 1−1000) 160 –0.5 INPUT VOLTAGE LIMIT (V) (REFERRED TO SUPPLY VOLTAGES) +VS –0.0 140 PSR (dB) 120 100 G = 1000 80 G = 100 60 G = 10 G=1 10 100 1k FREQUENCY (Hz) 10k 100k 1M 00775-0-018 40 1 –1.0 –1.5 +1.5 +1.0 +0.5 –VS +0.0 ཮18. ޶PSRᇑೕ୲‫࠲ڦ‬ဣ(RTIǈG = 1−1000) 5 15 10 SUPPLY VOLTAGE ± Volts 20 20 OUTPUT VOLTAGE SWING (V) (REFERRED TO SUPPLY VOLTAGES) +VS –0.0 100 10 1 1k 10k 100k FREQUENCY (Hz) 1M 10M 00775-0-019 GAIN (V/V) 0 ཮21. ๼෇‫ۉ‬უ‫ྷݔ‬ᇑ‫ۉ‬ᇸ‫ۉ‬უ‫࠲ڦ‬ဣ(G = 1) 1000 0.1 100 1M ཮20. ‫ٷ‬႑ࡽೕ୲ၚᆌ 180 20 0.1 G = 100 00775-0-021 20 0.1 15 5 00775-0-017 40 G=1 20 00775-0-022 PSR (dB) 100 25 00775-0-020 G = 1000 120 BW LIMIT OUTPUT VOLTAGE (V p-p) 140 –0.5 RL = 2kΩ –1.5 +1.5 RL = 2kΩ +1.0 RL = 10kΩ +0.5 –VS +0.0 ཮19. ሺᅮᇑೕ୲‫࠲ڦ‬ဣ RL = 10kΩ –1.0 0 5 10 15 SUPPLY VOLTAGE ± Volts ཮22. ๼‫ۉ؜‬უӦ‫ޗ‬ᇑ‫ۉ‬ᇸ‫ۉ‬უ‫࠲ڦ‬ဣ(G = 10) ７ＸＤ６２０ＤＩＰ８　ＸＬ６２０　ＳＯＰ８ .... .... .... .... .... .... .... .... .... .... VS = ±15V G = 10 20 10 0 0 100 1k LOAD RESISTANCE (Ω) 10k 00775-0-026 .... .... .... .... .... .... .... .... .... .... 00775-0-023 OUTPUT VOLTAGE SWING (V p-p) 30 ཮23. ๼‫ۉ؜‬უӦ‫ޗ‬ᇑ޶ሜፆੇ‫࠲ڦ‬ဣ ཮26. ‫ٷ‬႑ࡽၚᆌᇑॺ૬้क़‫࠲ڦ‬ဣ(G = 10ǈ0.5 mV = 0.01%) .... .... .... .... .... .... .... .... .... .... .... .... .... .... .... .... .... .... .... .... .... .... .... .... .... .... .... .... .... .... 00775-0-027 00775-0-024 .... .... .... .... .... .... .... .... .... .... ཮24. ‫ٷ‬႑ࡽஞ؋ၚᆌᇑॺ૬้क़‫࠲ڦ‬ဣ(G = 1ǈ0.5 mV = 0.01%) ཮27. ၭ႑ࡽၚᆌ(G = 10ǈRL = 2 kΩǈCL = 100 pF) .... .... .... .... .... .... .... .... .... .... .... .... .... .... .... .... .... .... .... .... .... .... .... .... .... .... .... .... .... .... 00775-0-030 00775-0-025 .... .... .... .... .... .... .... .... .... .... ཮25. ၭ႑ࡽၚᆌ(G = 1ǈRL = 2 kΩǈCL = 100 pF) ཮28. ‫ٷ‬႑ࡽၚᆌᇑॺ૬้क़‫࠲ڦ‬ဣ(G = 100ǈ0.5 mV = 0.01%) ８ＸＤ６２０ＤＩＰ８　ＸＬ６２０　ＳＯＰ８ 20 .... .... .... .... .... .... .... .... ........ SETTLING TIME (μs) 15 TO 0.01% TO 0.1% 10 00775-0-029 0 0 ཮29. ၭ႑ࡽஞ؋ၚᆌ(G = 100ǈRL = 2 kΩǈCL = 100 pF) 5 10 OUTPUT STEP SIZE (V) 15 20 00775-0-032 5 .... .... .... .... .... .... .... .... ........ ཮32. ॺ૬้क़ᇑօ৊‫ٷ‬ၭ‫࠲ڦ‬ဣ(G = 1) 1000 SETTLING TIME (μs) .... .... .... .... .... .... .... .... .... .... 100 10 1 1 10 100 1000 GAIN ཮33. 0.01%ॺ૬้क़ᇑሺᅮ‫࠲ڦ‬ဣ(օ৊‫ٷ‬ၭྺ10 V) .... .... .... .... .... .... .... .... ........ .... .... .... .... .... .... .... .... .... .... .... .... .... .... .... .... .... .... ........ .... .... .... .... .... .... .... .... .... .... 00775-0-031 00775-0-034 ཮30. ‫ٷ‬႑ࡽၚᆌᇑॺ૬้क़‫࠲ڦ‬ဣ(G = 1000ǈ0.5 mV = 0.01%) ཮34. ሺᅮ‫ݥ‬၍Ⴀ‫(܈‬G = 1ǈRL = 10 kΩǈ10 μV = 1 ppm) ཮31. ၭ႑ࡽஞ؋ၚᆌ(G = 1000ǈRL = 2 kΩǈCL = 100 pF) ９ 00775-0-033 00775-0-030 .... .... .... .... .... .... .... .... .... .... ＸＤ６２０ＤＩＰ８　ＸＬ６２０　ＳＯＰ８ 10kΩ * INPUT 10V p-p .... .... .... .... .... .... .... .... ........ 1kΩ 10T 10kΩ 100k Ω VOUT +VS 1kΩ 2 100 Ω 7 1 G = 1000 G=1 XD620/XL620 G = 100 G = 10 .... .... .... .... .... .... .... .... ........ 49.9Ω 499 Ω 5.49k Ω 5 00775-0-035 8 3 4 –VS *ALL RESISTORS 1% TOLERANCE ཮35. ሺᅮ‫ݥ‬၍Ⴀ‫(܈‬G = 100ǈRL = 10 kΩǈ100 μV = 10 ppm) ཮37. ॺ૬้क़֪๬‫ۉ‬ୟ .... .... .... .... .... .... .... .... ........ 00775-0-036 .... .... .... .... .... .... .... .... ........ ཮36. ሺᅮ‫ݥ‬၍Ⴀ‫(܈‬G = 1000ǈRL = 10 kΩǈ1 mV = 100 ppm) １０ 6 00775-0-037 11kΩ ＸＤ６２０ＤＩＰ８　ＸＬ６２０　ＳＯＰ８ XD/XL620߾ፕᇱ૙ I1 20μA VB I2 20μA A1 ๼෇ৗ༹࠶Q1ࢅQ2༵ࠃᅃୟߛ৛‫ܔݴֶ܈‬ມटႠ๼෇(཮ 38)ǈཞ้ᆯᇀ֑ᆩSuperϐeta‫ت‬૙ǈᅺُ๼෇ೋዃ‫ୁۉ‬३ၭ 10Ԡă‫ݒ‬ઍ࣍ୟQ1-A1-R1ࢅQ2-A2-R2๑๼෇ഗॲQ1ࢅQ2 ‫ڦ‬ण‫ۉ‬ट‫ୁۉ‬ԍ‫࢛ۨ׼‬ǈܸٗ੗ॽ๼෇‫ۉ‬უፕᆩᇀྔևሺ ᅮยዃ‫ۉ‬ፆRGฉăኄᄣ৽ׂิକٗ๼෇዁A1/A2๼‫ֶڦ؜‬ ‫ݴ‬ሺᅮǈഄऺ໙ࠅ๕ྺG = (R1 + R2)/RG + 1ă‫ڇ‬࿋ሺᅮ३݆ ഗA3ᆩઠၩ‫أ‬ඪࢆࠌఇ႑ࡽǈᅜइ‫ڥ‬ችࢇ‫ڟ‬REFᆅগ‫ۉ‬࿋ ‫܋ڇڦ‬๼‫؜‬ă A2 10kΩ C2 C1 10kΩ A3 R3 400Ω R1 R2 Q1 Q2 RG GAIN SENSE R4 400Ω OUTPUT 10kΩ REF +IN RGኵ࣏੗ਦۨമዃ‫ٷݣ‬ഗप‫ڞੵڦ‬ă‫ړ‬३ၭRGᅜइ‫ٷ߸ڥ‬ ሺᅮ้ǈ޿ੵ‫ॷॽڞ‬ৎሺ‫ڟٷ‬๼෇ৗ༹࠶‫ڞੵڦ‬ăኄࣷ‫ټ‬ ઠෙ‫تࡻٷ‬ǖ(a)ਸ࣍ሺᅮ༵ืᅜ༵ࠃ߸‫ڦٷ‬Պ‫ײ‬ሺᅮǈٗ ܸ३ၭᇑሺᅮ၎࠲‫ڦ‬ဃֶǗ(b)ሺᅮ‫੻ټ‬ओ(ᆯC1ĂC2ࢅമ ዃ‫ٷݣ‬ഗੵ‫ڞ‬ਦۨ)ໜጣՊ‫ײ‬ሺᅮ༵ߛܸሺ‫ٷ‬ǈܸٗᆫࣅೕ ୲ၚᆌǗ(c)๼෇‫ۉ‬უሯำই዁9 nV/√Hzǈ໲ዷᄲᆯ๼෇ഗॲ ‫ڦ‬ण‫ۉ‬ट‫ࢅୁۉ‬एट‫ۉ‬ፆਦۨă GAIN SENSE –VS 00775-0-038 – IN 10kΩ ཮38. XD620/XL620ᇱ૙๖ᅪ཮ XD/XL620๟ᅃ੼‫ڇ‬ႊೌᅏ՗‫ٷݣ‬ഗǈ֑ᆩঢ়‫ڦۆ‬ෙሏ ‫߀ݣ‬৊ยऺăཚࡗۙኝೌా‫ۉ‬ፆ‫ڦ‬ਨ‫ܔ‬ኵǈᆩࢽኻႴᅃ ߲‫ۉ‬ፆՍ੗ํ၄‫ܔ‬ሺᅮ‫ڦ‬৛ඓՊ‫(ײ‬G = 100้৛‫܈‬੗‫ٳ‬0.15 ాևሺᅮ‫ۉ‬ፆR1ࢅR2ᅙۙኝ዁ਨ‫ܔ‬ኵ24.7 kΩǈᅺُ૧ᆩᅃ ߲ྔև‫ۉ‬ፆՍ੗ํ၄‫ܔ‬ሺᅮ‫ڦ‬৛ඓՊ‫ײ‬ă %)ă‫ڇ‬ႊೌ঳ࠓࢅघ࠼ৗᇶۙኝሎႹ‫ۉܔ‬ୟᇮॲ৊ႜჹ ߭೅ದᇑ߶ጷǈܸٗ੗ඓԍُ‫ۉ‬ୟԨวਏᆶ‫ߛڦ‬Ⴀీ༬Ⴀ ă ሺᅮࠅ๕ྺǖ G= 49.4 kΩ RG = RG +1 49.4 kΩ G−1 ጲ዆ᇑࠔச: ‫ۆ‬႙ൃ๕‫ۉ‬ୟᆌᆩဃֶᇨ໙ XD/XL620༵ࠃᆫᇀ“ጲ዆”ෙሏ‫ݣ‬ᅏ՗‫ٷݣ‬ഗยऺ‫ڦ‬Ⴀ ీǈཞ้ਏᆶডၭ‫ڦ‬؅٫Ăডณ‫ڦ‬ᇮॲࢅ‫گ‬10Ԡ‫߾ڦ‬ፕ ‫ୁۉ‬ăሞ཮ 39໯ ๖ ‫ ۆ ڦ‬႙ ᆌ ᆩ ዐ ǈ ᄲ ൱ ሺ ᅮ ྺ 100ǈ ሞ −40°C዁+85°C‫߾ڦ‬ᄽ࿒‫ٷݣాྷݔ܈‬20 mV஢ଉ‫ൃײ‬๕ ‫ۉ‬ୟ๼‫؜‬ă՗3ଚ‫؜‬କසࢆऺ໙߳ዖဃֶᇸ‫ۉܔ‬ୟ৛‫ڦ܈‬ ᆖၚă １１ＸＤ６２０ＤＩＰ８　ＸＬ６２０　ＳＯＰ８ ൩ጀᅪǈ‫ܔ‬ᇀጲ዆‫ۉ‬ୟǈ๼෇‫ۉ‬უ฿ۙࢅሯำ‫ڦ‬XD/XL07 Zरຍࡀ߭ᅙ‫ױ‬ᅜ√2ăኄ๟ᅺྺෙሏ‫ݣ‬႙‫ݴ‬૬ᅏ՗‫ٷݣ‬ഗ ᆶଇ߲ሏ‫ݣ‬ሞഄ๼෇‫܋‬ǈܾኁ਩‫ܔ‬ጺ๼෇ဃֶᆶᆖၚă ࿮ஃᆩᇀࢆዖဣཥǈXD/XL620‫ీۼ‬ᅜ߸‫گ߸ࢅࡼࠀگ‬ ‫ׯ‬Ԩ༵ࠃ߸ߛ‫ڦ‬৛‫܈‬ăሞ०‫ڦڇ‬ဣཥዐǈਨ‫ܔ‬৛‫ࢅ܈‬೏ ᅎဃֶ၂඗๟ፌዘᄲ‫ڦ‬ဃֶઠᇸăሞࡤᆶ዇ీ‫ت‬૙ഗ‫ڦ‬ড ްሗဣཥዐǈጲ‫ۯ‬ሺᅮ/ጲ‫ࡃۯ‬ଭዜ೺ॽၩ‫أ‬໯ᆶ‫ڦ‬ਨ‫ܔ‬ ৛‫ࢅ܈‬೏ᅎဃֶǈৈାူሺᅮĂ‫ݥ‬၍Ⴀ‫ࢅ܈‬ሯำ‫ݴڦ‬Ր୲ ဃֶǈᅺُ੗ᅜइ‫ྜڥ‬ඇ14࿋৛‫܈‬ă 10V R = 350Ω RG 499Ω R = 350Ω 00775-0-039 PRECISION BRIDGE TRANSDUCER AD620A MONOLITHIC INSTRUMENTATION AMPLIFIER, G = 100 SUPPLY CURRENT = 1.3mA MAX 100Ω ** 00775-0-040 R = 350Ω 10kΩ * 10kΩ ** REFERENCE R = 350Ω 10kΩ * XL07Z XD620/XL620 XL07Z 10kΩ ** XL07Z 10kΩ * 10kΩ* "HOMEBREW" IN-AMP, G = 100 *0.02% RESISTOR MATCH, 3ppm/°C TRACKING **DISCRETE 1% RESISTOR, 100ppm/ °C TRACKING SUPPLY CURRENT = 15mA MAX ཮39. ጲ዆ᇑࠔச ՗3. ጲ዆ᇑࠔச‫ڦ‬ဃֶᇨ໙ ဃֶᇸ ਨ‫ܔ‬৛‫(܈‬TA = 25°C) ๼෇฿ۙ‫ۉ‬უǈμV ๼‫؜‬฿ۙ‫ۉ‬უǈμV ๼෇฿ۙ‫ୁۉ‬ǈnA CMR, dB 85°C೏ᅎ ሺᅮ೏ᅎǈppm/°C ๼෇฿ۙ‫ۉ‬უ೏ᅎǈμV/°C ๼‫؜‬฿ۙ‫ۉ‬უ೏ᅎǈμV/°C ‫ݴ‬Ր୲ ሺᅮ‫ݥ‬၍Ⴀ‫܈‬ǈ஢ଉ‫ײ‬ppm 0.1 Hz዁10 Hz‫ۉ‬უሯำ (‫ۆ‬႙ኵǈμV ‫ރރ‬ኵǅ ဃֶǈ஢ଉ‫ײ‬ppm XD/XL620 ጲ዆ XD/XL620‫ۉ‬ୟऺ໙ “ጲ዆”‫ۉ‬ୟऺ໙ 125 μV/20 mV 1000 μV/100 mV/20 mV 2 nA ×350 Ω/20 mV 110 dB(3.16 ppm) ×5 V/20 mV (150 μV × √2)/20 mV ((150 μV × 2)/100)/20 mV (6 nA ×350 Ω)/20 mV (0.02% Match × 5 V)/20 mV/100 6,250 500 18 791 10,607 150 53 500 ጺਨ‫ܔ‬ဃֶ 7,559 11,310 100 ppm/°C Track × 60°C (2.5 μV/°C × √2 × 60°C)/20 mV (2.5 μV/°C × 2 × 60°C)/100 mV/20 mV 3,600 3,000 450 6,000 10,607 150 ጺ೏ᅎဃֶ 7,050 16,757 40 14 54 14,663 40 27 67 28,134 (50 ppm + 10 ppm) ×60°C 1 μV/°C × 60°C/20 mV 15 μV/°C × 60°C/100 mV/20 mV 40 ppm 28 μV p-p/20 mV 40 ppm (0.38 μV p-p × √2)/20 mV ጺ‫ݴ‬Ր୲ဃֶ ဃֶጺࢅ G = 100, VS = ±15 V. (໯ᆶဃֶ਩ྺፌၭኵ/ፌ‫ٷ‬ኵժችࢇ‫ڟ‬๼෇‫)܋‬ １２ＸＤ６２０ＤＩＰ８　ＸＤ６２０低功耗仪表放大器ＤＩＰ８　ＸＬ６２０　ＳＯＰ８ 5V 3kΩ 3kΩ 3kΩ 3kΩ 20kΩ 7 3 REF 8 XD/XL620 G = 100 499Ω 6 IN 10kΩ 5 1 ADC 4 2 20kΩ 1.7mA AD705 AGND 0.6mA MAX 0.10mA 1.3mA MAX DIGITAL DATA OUTPUT ཮40. ֑ᆩ5 V‫ۉڇ‬ᇸࠃ‫ڦۉ‬უ૰֪॔ᅏ‫ۉ‬ୟ უ૰֪ଉ ᅅᆩECG XD/XL620‫أ‬କ੗ᆩᇀ‫ۉ‬ጱ‫ڪ׹‬Ⴙ‫ൃܠ‬๕‫ۉ‬ୟᆌᆩኮྔ ǈ࣏༬՚๢ࢇ֑ᆩ‫ۉگ‬უࠃ‫ۉٷڦۉ‬ፆუ૰‫ߌد‬ഗăሞ ኄၵᆌᆩዐǈၭ؅٫ࢅ‫ࡼࠀگ‬༬ႠՎ‫े߸ڥ‬ዘᄲă XD/XL620ਏᆶ‫ୁۉگ‬ሯำ༬Ⴀǈᅺُ੗ᆩᇀ႑ࡽᇸ‫ۉ‬ ፆ‫ٳߛ׉׉‬1 MΩయ዁߸‫ڦٷ‬ECG֪॔ᅏ)཮41*ăXD/XL62 0‫ۉࢅࡼࠀڦ‬ᇸ‫ۉ‬უ਩੗࢔‫گ‬ǈժ൐֑ᆩবู੣क़‫ڦ‬8ᆅ গྲ႙DIPࢅSOP‫ހ‬ጎǈᅺܸ๟‫ۉࠃ׾ۉ‬๕ຕ਍ऻ୤ഗ‫ڦ‬ ਨॅ჋ስă ཮40၂๖କᅃ߲3 kΩუ૰‫ߌد‬ഗ‫ൃۉ‬ǈ໲֑ᆩ5 V‫ۉ‬ᇸࠃ‫ۉ‬ǈ ‫ࡼࠀൃۉ‬ৈྺ1.7 mAăሺेXD/XL620ࢅ࣐؋‫ݴ‬უഗࢫՍ ੗‫ܔ‬႑ࡽ৊ႜۙ૙ǈጺ‫ۉ‬ᇸ‫ୁۉ‬ৈ3.8 mAă ُྔǈXD/XL620‫گڦ‬ೋዃ‫ୁۉگࢅୁۉ‬ሯำ༬Ⴀᇑ‫گ‬ ‫ۉ‬უሯำ༬Ⴀ၎঳ࢇǈ੗༵ߛ‫ۯ‬ༀ‫ྷݔ‬ǈඓԍइ‫ڦࡻ߸ڥ‬ ၭ؅٫ࢅ‫ׯگ‬Ԩᆫ๞๑XD/XL620‫ۉܔ‬უ๼‫؜‬უ૰‫ߌد‬ ഗटਏဌᆅ૰ăᆯᇀഄ‫گ‬ሯำࢅ‫گ‬೏ᅎ༬Ⴀǈᅺُ໲ᄺ ๢ࢇኑ܏Ⴀ࿮‫ظ‬ეუ֪ଉ‫ڪ‬ᆌᆩă Ⴀీă๢‫ړ‬჋ስ‫ۉ‬ඹC1‫ڦ‬ኵǈሶ੗๑ᆸ֨ൻ‫࣍ۯ‬ୟԍ‫׼‬࿘ ۨăُ‫ۉ‬ୟՂႷሺेਨᇹ‫ڪ‬๢‫ڦړ‬Ҿඇ‫ٯ‬แǈᅜՆ௨࣒ኁ ੗ీ๴‫ڟ‬ฅ࡞ă +3V PATIENT/CIRCUIT PROTECTION/ISOLATION C1 R1 10kΩ R4 1MΩ R3 24.9kΩ R2 24.9kΩ RG 8.25kΩ XD/XL620 G=7 0.03Hz HIGHPASS FILTER G = 143 OUTPUT AMPLIFIER AD705J –3V ཮41. ᅅᆩECG֪॔ᅏ‫ۉ‬ୟ １３ OUTPUT 1V/mV ＸＤ６２０ＤＩＰ８　ＸＬ６２０　ＳＯＰ８ ৛௢V-Iገ࣑ഗ ๼෇ᇑ๼‫؜‬฿ۙ‫ۉ‬უ XD/XL620ᇑᅃ߲ሏ໙‫ٷݣ‬ഗࢅଇ߲‫ۉ‬ፆ၎঳ࢇǈՍ੗ ࠓ‫ׯ‬ᅃ߲৛௢‫ୁۉ‬ᇸ)཮42*ă޿ሏ໙‫ٷݣ‬ഗྺएጚᆅগ ༵ࠃ࣐؋ǈᅜඓԍଆࡻ‫ࠌڦ‬ఇᅞ዆(CMR)ႠీăXD/XL6 20‫ڦ‬๼‫ۉ؜‬უVX‫؜‬၄ሞ‫ۉ‬ፆR1ǈࢫኁॽഄገ࣑‫ୁۉׯ‬ă ُ‫ୁۉ‬ৈ३ඁሏ໙‫ٷݣ‬ഗ‫ڦ‬๼෇ೋዃ‫ࢫୁۉ‬ǈՍୁၠ޶ሜ ă XD/XL620‫گڦ‬ဃֶ੗ᅜࡃ঳ᇀଇ߲ઠᇸǖ๼෇ဃֶᇑ ๼‫؜‬ဃֶă๼‫؜‬ဃֶችࢇ‫ڟ‬๼෇‫้܋‬Ⴔ‫أ‬ᅜGăํाฉǈ ߛሺᅮ้ᅜ๼෇ဃֶྺዷǈ‫گ‬ሺᅮ้ᅜ๼‫؜‬ဃֶྺዷă ߴۨሺᅮ‫ڦ‬ጺVOSऺ໙සူǖ ችࢇ‫ڟ‬๼෇‫(܋‬RTI)ጺဃֶ=๼෇ဃֶ+ (๼‫؜‬ဃֶ/G) +VS ችࢇ‫ڟ‬๼‫(܋؜‬RTO)ጺဃֶ=(๼෇ဃֶ × G)+๼‫؜‬ဃֶ 7 3 एጚᆅগ 8 XD/XL620 RG 1 VIN– एጚᆅগ‫ۉ‬࿋ۨᅭଭ๼‫ۉ؜‬უăܸ൐‫޶ړ‬ሜփᇑဣཥഄᇆ և‫ࠌݴ‬ၛ৛ඓ‫ۉں‬࿋้ǈएጚᆅগ‫ۉ‬࿋৽༬՚ᆶᆩǖᅃዖ ၠ๼‫ࠃ༵؜‬৛ඓೋᅎ‫ۉ‬უ‫ڦ‬኱থ཰০ǈඹႹ‫ۉྺྷݔ‬ᇸ‫ۉ‬ უᅜా2 Văྺକइ‫ڥ‬ፌॅ‫ࠌڦ‬ఇᅞ዆(CMR)ǈᆌ๑सิ‫ۉ‬ ፆԍ‫׼‬ፌၭă 6 R1 5 2 4 I –VS I L= + VX – Vx R1 = L AD705 [(V IN+ ) – (V IN– )] G R1 LOAD ๼෇ԍࢺ 00775-0-044 VIN+ XD/XL620‫ڦ‬๼෇‫܋‬ದᆶ400 Ω‫૴ز‬ԋఈ‫ۉ‬ፆǈ੗ᅜҾඇ ੗੍‫׶ں‬๴ፌߛ±15 Vई±60 mA‫ڦ‬๼෇ࡗሜຕၭ้ăُ༬ Ⴀ๢ᆩᇀ໯ᆶሺᅮतฉ‫ۉ‬Ă܏‫ײࡗۉ‬ǈሞ႑ࡽᇸᇑ‫ٷݣ‬ഗ ֑ᆩփཞ‫ۉ‬ᇸ‫ݴ‬՚ࠃ‫้ۉ‬ᆮഄዘᄲă‫ܔ‬ᇀ߸‫้ڦ׊‬क़ǈ‫ۉ‬ ୁփᆌ‫ࡗג‬6 mA (IIN ≤ VIN/400 Ω)ă‫ܔ‬ᇀ‫ۉ؜ג‬ᇸ‫ڦ‬๼෇ ࡗሜǈॽ๼෇ഭ࿋዁‫ۉ‬ᇸ)ᆩFD333ኮૌ‫گ‬ႅ୑ܾट࠶*੗ ᅜই‫گ‬໯ᄲ൱‫ۉڦ‬ፆኵǈܸٗइ‫ڥ‬ড‫ڦگ‬ሯำă ཮42. ৛௢‫ۉ‬უ‫ୁۉ‬ገ࣑ഗ(߾ፕ‫ୁۉ‬1.8 mAǈ߾ፕ‫ۉ‬უ±3 V) ሺᅮ჋ስ XD/XL620‫ڦ‬ሺᅮཚࡗ‫ۉ‬ፆRG৊ႜՊ‫ײ‬ǈईኁ߸৛ඓ‫ں‬ ຫǈཚࡗᆅগ1ᇑᆅগ8ኮक़٪ሞ‫ڦ‬ඪࢆፆੇ৊ႜՊ‫ײ‬ăA D620ኼሞᆩ0.1%዁1%‫ۉ‬ፆ༵ࠃ৛ඓ‫ڦ‬ሺᅮă՗4ଚ‫؜‬କ ߳ዖሺᅮ໯ᄲ൱‫ڦ‬RGኵăጀᅪǈ‫ܔ‬ᇀG = 1ǈRGᆅগփ૶থ( RG = ∞)ă‫ܔ‬ᇀඪᅪሺᅮǈ੗ᆩူ๕ऺ໙RGǖ RG = พೕ)RF*߅ඡ ໯ᆶᅏ՗‫ٷݣ‬ഗ‫ྔټܔࣷۼ‬ၭ႑ࡽ৊ႜኝୁăኄዖ߅ඡ੗ ీࣷ՗၄ྺডၭ‫ڦ‬኱ୁ‫ۉ‬უ฿ۙăߛೕ႑ࡽ੗ᅜཚࡗᅏ՗ ‫ٷݣ‬ഗ๼෇‫گڦ܋‬ཚR-Cྪஏ୳‫أ‬ă཮43ຫ௽କኄዖದ ዃă୳հഗߵ਍ᅜူ࠲ဣ๕‫ܔ‬๼෇႑ࡽेᅜ၌዆ǖ 49.4 kΩ G −1 ྺ๑ሺᅮဃֶፌၭǈᆌՆ௨ׂิᇑRG‫ߛڦ૴ز‬सิ‫ۉ‬ፆǗ ྺ ๑ ሺ ᅮ ೏ ᅎ ፌ ၭ ǈ R G ᆌ ਏ ᆶ ‫ گ‬࿒ ‫ ܈‬ဣ ຕ TC) ၭ ᇀ 10 ppm/°C*֍ీइ‫ڥ‬ፌॅႠీă FilterFreq DIFF = ՗4. ᄲ൱‫ڦ‬ሺᅮ‫ۉ‬ፆኵ 1%Քጚ՗ RGኵ(Ω) 49.9 k 12.4 k 5.49 k 2.61 k 1.00 k 499 249 100 49.9 ऺ໙‫ڟڥ‬ ‫ڦ‬ሺᅮኵ 1.990 4.984 9.998 19.93 50.40 100.0 199.4 495.0 991.0 0.1%Քጚ՗ RGኵ(Ω) 49.3 k 12.4 k 5.49 k 2.61 k 1.01 k 499 249 98.8 49.3 FilterFreq CM = ऺ໙‫ڟڥ‬ ‫ڦ‬ሺᅮኵ 2.002 4.984 9.998 19.93 49.91 100.0 199.4 501.0 1,003.0 1 2 πR(2C D + C C ) 1 2 πRC C ഄዐCD ≥10CCă CDᆖၚֶ‫ۯ‬႑ࡽăCCᆖၚࠌఇ႑ࡽăR × CC‫ڦ‬ඪࢆփ೅ದ਩ ࣷই‫گ‬XD/XL620‫ڦ‬CMRR)ࠌఇᅞ዆Բ*ႠీăྺକՆ௨ ࿮ᅪዐই‫گ‬CMRR-‫੻ټ‬ႠీǈႴඓԍCCԲCD዁ณၭᅃ߲ຕ ଉपăCD:CCԲኵሁ‫ٷ‬ǈփ೅ದCC‫ڦ‬ᆖၚሁၭă １４ＸＤ６２０ＤＩＰ８　ＸＬ６２０　ＳＯＰ８ +15V +VS R CC CD CC 100Ω +IN + XD/XL620 499Ω –IN AD648 – VOUT RG 100Ω REF XD/XL620 VOUT –VS REFERENCE 1 0μ F 0.1μ F –15V 00775-0-045 R – INPUT 1 0μ F 0.1μ F + INPUT –VS ཮44. ֶ‫ݴ‬ೡԸൻ‫ۯ‬ഗ ཮43. ᆩᇀ३ณRF߅ඡ‫ۉڦ‬ୟ ࠌఇᅞ዆ +VS ࠌఇᅞ዆(CMR)๟ᅏ՗‫ٷݣ‬ഗ‫ڦ‬ଇୟ๼෇݀ิ‫ڪ‬ଉՎࣅ้ ‫ܔ‬๼‫ۉ؜‬უՎࣅ‫ڦ‬ଉ‫܈‬ǈዮසXD/XL620‫ڪ‬ᅏ՗‫ٷݣ‬ഗ ‫ߛࠃ༵ࠕీۼ‬CMRăኄၵरຍࡀ߭ཚ‫׉‬ኍ‫ܔ‬ඇ‫ྷݔ‬๼෇ ‫ۉ‬უՎࣅࢅ༬ۨ‫ݥ‬਩࢚႑ࡽᇸă – INPUT 100Ω RG 2 AD548 RG 2 XD/XL620 VOUT REFERENCE ྺइ‫ڥ‬ፌॅCMRǈएጚᆅগᆌᇑ‫گ‬ፆੇ‫ۅ‬၎૶ǈժ൐ଇୟ ๼෇ኮक़‫ۉڦ‬ඹࢅ‫ۉ‬ፆֶᅴᆌԍ‫׼‬ፌၭăႹ‫ܠ‬ᆌᆩ‫ۼ‬૧ᆩ ೡԸ‫ۉ‬મઠ৑੗ీই‫گ‬ሯำǗྺइ‫ڥ‬ፌॅ‫ڦ‬CMRໜೕ୲Վ ࣅ‫ڦ‬Ⴀీǈᆌ‫ܔ‬ೡԸ৊ႜ๢‫ڦړ‬ൻ‫ۯ‬ăස཮44ࢅ཮45໯ ๖ǈഄዐ‫ڦ‬ᆶᇸຕ਍‫ࢺݞ‬ದዃ੗߀฀঍ୁࠌఇᅞ዆ǈ໲ཚ ࡗ“ጲਉ”(bootstrapping)๼෇‫ۉ‬મೡԸ‫ۉڦ‬ඹǈܸٗ๑๼෇ ኮक़‫ۉڦ‬ඹփ೅ದই዁ፌ‫گ‬ă + INPUT –VS ཮45. ࠌఇೡԸൻ‫ۯ‬ഗ থ‫ں‬ ᆯᇀXD/XL620‫ڦ‬๼‫ۉ؜‬უ๟၎‫ܔ‬ᇀएጚᆅগฉ‫ۉڦ‬࿋ ܸჾǈᅺُኻႴॽREFᆅগ૶዁၎ᆌ‫“ڦ‬ਆևথ‫”ں‬Ս੗঴ ਦႹ‫ܠ‬থ‫ں‬࿚༶ă ྺକሞߛሯำຕጴ࣍ৣዐ߰૗‫ۉگ‬ೝఇె႑ࡽǈႹ‫ܠ‬ຕ਍ ֑णᇮॲ‫ۼ‬ದᆶ‫ڦ܀ڇ‬ఇెথ‫ں‬ᆅগࢅຕጴথ‫ں‬ᆅগ)཮ 46*ă֑ᆩᅃୟথ‫ں‬၍ࣷ࢔‫ݛ‬Սǈ‫ڍ‬๟ǈཚࡗ‫ۉ‬ୟথ‫ں‬၍ࢅ PC၍ୟ‫ୁۉڦ‬੗ీࣷᆅഐຕӥࡹ‫ڦޚ‬ဃֶăᅺُᆌ༵ࠃ‫ݴ‬ ਸ‫ڦ‬থ‫࣮ں‬ୟǈ๑‫ୁۅߌ௺ٗڥ‬዁ဣཥথ‫ୁۉڦں‬ፌၭă ኄၵথ‫࣮ں‬ୟՂႷሞగ‫૶ۅ‬ሞᅃഐǈཚ‫׉‬ፌࡻሞADC‫ހ‬ጎ ฉǈස཮46໯๖ă ANALOG P.S. +15V C –15V 0.1μ F 0.1μ F DIGITAL P.S. C +5V 1μ F 1μ F 1μ F XD/XL620 AD585 S/H AD574A ADC ཮46. एԨথ‫݆ݛں‬ １５ DIGITAL DATA OUTPUT 00775-0-048 + ＸＤ６２０ＤＩＰ８　ＸＬ６２０　ＳＯＰ８ ๼෇ೋዃ‫࣮ୁۉ‬ୟ +VS – INPUT ๼෇ೋዃ‫ୁۉ‬๟ኸ๑‫ٷݣ‬ഗ‫ڦ‬๼෇ৗ༹࠶ೋዃ໯ՂႴ‫ۉڦ‬ ୁăኄၵ‫ୁۉ‬ՂႷਏᆶ኱থ‫࣮ݓ‬ୟ০ăᅺُǈ‫ٷݣړ‬Վუ ഗई঍ୁ᳘ࢇᇸ‫”ۯޝ“ڪ‬๼෇ᇸ้ǈٗ߳๼෇‫܋‬዁‫ں‬ՂႷ ᆶ኱ୁୟ০ǈස཮47Ă཮48ࢅ཮49໯๖ă XD/XL620 RG VOUT LOAD REFERENCE + INPUT –VS TO POWER SUPPLY GROUND +VS – INPUT ཮48. ඤ‫ۉ‬౾๼෇ೋዃ‫ڦୁۉ‬থ‫࣮ں‬ୟ RG XD/XL620 VOUT +VS – INPUT LOAD + INPUT REFERENCE –VS TO POWER SUPPLY GROUND XD/XL620 VOUT 00775-0-049 RG LOAD + INPUT ཮47. Վუഗ᳘ࢇ๼෇ೋዃ‫ڦୁۉ‬থ‫࣮ں‬ୟ 100k Ω 100kΩ REFERENCE –VS TO POWER SUPPLY GROUND ཮49. ঍ୁ᳘ࢇ๼෇ೋዃ‫ڦୁۉ‬থ‫࣮ں‬ୟ １６ＸＤ６２０ＤＩＰ８　ＸＬ６２０　ＳＯＰ８ XD/XL620 封装图 0.400 (10.16) 0.365 (9.27) 0.355 (9.02) 8 1 5 4 5.00 (0.1968) 4.80 (0.1890) 0.280 (7.11) 0.250 (6.35) 0.240 (6.10) 8 PIN 1 0.100 (2.54) BSC 0.210 (5.33) MAX 0.150 (3.81) 0.130 (3.30) 0.115 (2.92) 0.060 (1.52) MAX 0.015 (0.38) MIN 0.195 (4.95) 0.130 (3.30) 0.115 (2.92) 0.015 (0.38) GAUGE PLANE SEATING PLANE 0.022 (0.56) 0.018 (0.46) 0.014 (0.36) 4.00 (0.1574) 3.80 (0.1497) 1 0.325 (8.26) 0.310 (7.87) 0.300 (7.62) 0.005 (0.13) MIN 0.430 (10.92) MAX 5 4 1.27 (0.0500) BSC 0.25 (0.0098) 0.10 (0.0040) 0.014 (0.36) 0.010 (0.25) 0.008 (0.20) 6.20 (0.2440) 5.80 (0.2284) 1.75 (0.0688) 1.35 (0.0532) 0.51 (0.0201) COPLANARITY SEATING 0.31 (0.0122) 0.10 PLANE 0.50 (0.0196) × 45° 0.25 (0.0099) 8° 0.25 (0.0098) 0° 1.27 (0.0500) 0.40 (0.0157) 0.17 (0.0067) COMPLIANT TO JEDEC STANDARDS MS-012AA CONTROLLING DIMENSIONS ARE IN MILLIMETERS; INCH DIMENSIONS (IN PARENTHESES) ARE ROUNDED-OFF MILLIMETER EQUIVALENTS FOR REFERENCE ONLY AND ARE NOT APPROPRIATE FOR USE IN DESIGN 0.070 (1.78) 0.060 (1.52) 0.045 (1.14) COMPLIANT TO JEDEC STANDARDS MS-001-BA CONTROLLING DIMENSIONS ARE IN INCHES; MILLIMETER DIMENSIONS (IN PARENTHESES) ARE ROUNDED-OFF INCH EQUIVALENTS FOR REFERENCE ONLY AND ARE NOT APPROPRIATE FOR USE IN DESIGN. CORNER LEADS MAY BE CONFIGURED AS WHOLE OR HALF LEADS. 52. 8 SOP8封装尺寸图 ཮50. 8 DIP8封装尺寸图以上信息仅供参考，如需帮助联系客服人员。谢谢ＸＩＮＬＵＤＡ！１７

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