ADA4941-1YRZ

‫ۉڇ‬ᇸĂֶ‫ݴ‬18࿋ ADCൻ‫ۯ‬ഗ ADA4941-1 ‫ۉڇ‬ᇸຕ਍֑णဣཥ ᅏഗᅏ՗ ࡗ‫ײ‬੦዆ ‫ۉࠃ׾ۉ‬ဣཥ ᅅଐᅏഗ 1 8 IN REF 2 7 DIS V+ 3 6 V– OUT+ 4 5 OUT– ཮1 –65 –70 –75 VO = 6V p-p –80 –85 –90 –95 –100 –105 –110 VO = 2V p-p –115 –120 HD2 HD3 –125 –130 –135 –140 0.1 HD3 HD2 1 10 100 FREQUENCY (kHz) 1000 05704-045 ᆌᆩ FB –60 DISTORTION (dBc) ‫܋ڇ‬ገֶ‫ݴ‬ገ࣑ഗ ‫؜‬෥‫ڦ‬၍Ⴀ‫܈‬ ! ฿ኈǖ−110 dBc(100 KHzLjVOdm = 2 V‫ރރ‬ኵ) ‫گ‬ሯำǖ10.2 nV/√Hz(ችࢇ‫ڟ‬๼‫܋؜‬LjG = 2) ट‫ࡼࠀگ‬ǖ2.2 mA(3 V‫ۉ‬ᇸ) ߛ๼෇ፆੇǖ24 MΩ ᆩࢽ੗ۙሺᅮ ߛ໏ǖ−3 dB‫ྺ੻ټ‬31 MHz (G = +2) 0.005%੺໏ॺ૬้क़ǖ300 nsDŽ2 Vօ৊Dž ‫گ‬฿ۙǖ0.8 mV(ፌ‫ٷ‬ኵ)(ችࢇ‫ڟ‬๼‫܋؜‬LjG = 2) ࡆ‫ࡆڟ‬๼‫؜‬ ্ᆩ༬Ⴀ ੻‫ۉ‬ᇸ‫ۉ‬უ‫ྷݔ‬ǖ2.7 V዁12 V ֑ᆩবู੣क़‫ڦ‬3 mm x 3 mm LFCSP‫ހ‬ጎ 05704-001 ࠀీ઀཮ ༬Ⴀ ཮2. փཞ๼‫ူ܈ޗ؜‬฿ኈᇑೕ୲‫࠲ڦ‬ဣ ߁ຎ ADA4941-1๟ᅃ੼‫ࡼࠀگ‬Ă‫گ‬ሯำֶ‫ݴ‬ൻ‫ۯ‬ഗLjᆩᇀൻ‫ۯ‬ ࠀࡼ௺ߌဣཥዐፌߛ18࿋‫ڦ‬ADCă໲֑ᆩᅟᇀ๑ᆩ‫܋ڇڦ‬ ገֶ‫ݴ‬ದዃLj࿮Ⴔྔևᇮॲ৽ీइ‫ڥ‬ሺᅮྺ2ሺे‫ۉ‬ፆ‫ݒ‬ ઍྪஏՍ੗ํ၄‫ٷ‬ᇀ2‫ڦ‬ሺᅮLjཞ้༵ࠃൻ‫ݴߛۯ‬Ր୲ ADC໯Ⴔ‫گڦ‬฿ኈࢅߛ႑ሯԲ(SNR)‫ڪ‬ዘᄲ༬Ⴀă ADA4941-1ਏᆶ੻๼෇‫ۉ‬უ‫֑(ݔ‬ᆩ5 V‫ۉڇ‬ᇸ้0 V዁3.9 V)Ă ࡆ‫ࡆڟ‬๼‫؜‬Ăߛ๼෇ፆੇࢅᆩࢽ੗ۙሺᅮLj੗ᆩᇀൻ‫ۯ‬Ԉ ઔ‫ۉࠃ׾ۉ‬ยԢࢅ‫ۉڇ‬ᇸຕ਍֑णဣཥ‫߳ڪ‬ዖ‫ࡼࠀگ‬ᆌᆩ ዐ‫ۉڇڦ‬ᇸĂֶ‫ݴ‬๼෇ADCă ADA4941-1‫׉ݥ‬๢ࢇൻ‫ۯ‬AD7687ĂAD7690ࢅAD7691‫ڪ‬16 ࿋ࢅ18࿋PulSAR® ADCă ADA4941-1֑ᆩADIࠅິ‫ڦ‬ጆᆶ‫پܾڼ‬XFCB߾ᅝ዆ሰLj๑ ‫ٷݣ‬ഗ੗ᅜሞ‫ۉگ‬ᇸ‫ୁۉ‬ཉॲူํ၄18࿋Ⴀీă AD4941-1༵ࠃ8ᆅগၭ႙LFCSP‫ހ‬ጎࢅ8ᆅগՔጚSOIC‫ހ‬ ጎLj‫߾ۨܮ‬ፕ࿒‫ྺྷݔ܈‬−40°C዁+125°Cકቛ߾ᄽ࿒‫ݔ܈‬ ྷă Rev. B Information furnished by Analog Devices is believed to be accurate and reliable. However, no responsibility is assumed by Analog Devices for its use, nor for any infringements of patents or other rights of third parties that may result from its use. Specifications subject to change without notice. No license is granted by implication or otherwise under any patent or patent rights of Analog Devices. Trademarks and registered trademarks are the property of their respective owners. One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A. Tel: 781.329.4700 www.analog.com Fax: 781.461.3113 ©2006–2010 Analog Devices, Inc. All rights reserved. ADIዐ࿔Ӳຕ਍๮֩๟ᆈ࿔Ӳຕ਍๮֩‫ڦ‬ᅳ࿔Lj৤൩ଌ঴‫݋‬ᅳዐ੗ీ٪ሞ‫ڦ‬ᇕჾፇኯई‫݋‬ᅳ‫ٱ‬ဃLjADIփ‫݋ܔ‬ᅳዐ٪ሞ‫ֶڦ‬ᅴईᆯׂُิ‫ٱڦ‬ဃ޶ሴăසႴඓණඪࢆَᇕ‫ڦ‬ጚඓႠLj൩֖੊ADI༵ࠃ ‫ڦ‬ፌႎᆈ࿔Ӳຕ਍๮֩ă ADA4941-1 ణ୤ ༬Ⴀ ................................................................................................... 1 ! ๼‫ۉ؜‬უሯำ ....................................................................... 17 ᆌᆩ ................................................................................................... 1 ! ೕ୲ၚᆌᇑԿ࣍ሺᅮ .......................................................... 19 ࠀీ઀཮ ........................................................................................... 1 ᆌᆩ ................................................................................................. 20 ߁ຎ ................................................................................................... 1 ! ߁ຎ ......................................................................................... 20 Ⴊ۩૦๏ ........................................................................................... 2 ! ๑ᆩREFᆅগ ........................................................................ 20 रຍࡀ߭ ........................................................................................... 3 ! ాև‫ݒ‬ઍྪஏࠀࡼ .............................................................. 20 ਨ‫ܔ‬ፌ‫ۨܮٷ‬ኵ ............................................................................. 6 ! ্ᆩ༬Ⴀ ................................................................................ 20 ! ඤፆ ........................................................................................... 6 ! ཁे3ट‫ۅ‬Sallen-Key୳հഗ .............................................. 21 ESDয়ߢ ................................................................................... 6 ! ൻ‫ۯ‬AD7687 ADC ................................................................ 22 ᆅগದዃࢅࠀీ௮ຎ ..................................................................... 7 −2ሺᅮದዃ ........................................................................... 22 ‫ۆ‬႙߾ፕ༬Ⴀ .................................................................................. 8 ྔႚ؅٫ ........................................................................................ 23 ߾ፕᇱ૙ ........................................................................................ 15 ! ! एԨ߾ፕᇱ૙ ....................................................................... 26 ! ኱ୁဃֶऺ໙ ....................................................................... 16 Ⴊ۩૦๏ 2009౎3ሆ—Ⴊ۩Ӳ0዁Ⴊ۩ӲA ߸߀ሺᅮဃֶ೏ᅎ֖ຕ)՗1* ....................................................... 3 ߸߀ሺᅮဃֶ೏ᅎ֖ຕ)՗2* ....................................................... 4 ߸߀ሺᅮဃֶ೏ᅎ֖ຕ)՗3* ....................................................... 5 ߸ႎྔႚ؅٫ ................................................................................ 23 2006౎4ሆ—Ⴊ۩Ӳ0ǖ‫؛‬๔Ӳ Rev. B | Page 2 of 24 ۩ࠔኸళ ................................................................................ 23 ADA4941-1 रຍࡀ߭! ‫ݥأ‬ଷᆶຫ௽LjTA = 25°CLjVS = 3 VLjOUT+থFB (G = 2)LjRL, dm = 1 kΩLjREF = 1.5 Vă ՗1 ֖ຕ ‫ۯ‬ༀႠీ -3 dB‫੻ټ‬ ! ࡗൻ࣬ް้क़ ! უӦ୲ 0.005%ॺ૬้क़ ሯำ/฿ኈႠీ ၿհ฿ኈ RTO‫ۉ‬უሯำ ๼෇‫ୁۉ‬ሯำ ኱ୁႠీ! ! ֶ‫ݴ‬๼‫؜‬฿ۙ‫ۉ‬უ! ! ֶ‫ݴ‬๼෇฿ۙ‫ۉ‬უ೏ᅎ! ! ‫܋ڇ‬๼෇฿ۙ‫ۉ‬უ! ! ‫܋ڇ‬๼෇฿ۙ‫ۉ‬უ೏ᅎ! ! ๼෇ೋዃ‫!ୁۉ‬ ! ๼෇฿ۙ‫!ୁۉ‬ ! ሺᅮ! ! ሺᅮဃֶ! ! ሺᅮဃֶ೏ᅎ! ๼෇༬Ⴀ ๼෇‫ۉ‬ፆ ๼෇‫ۉ‬ඹ ๼෇ࠌఇ‫ۉ‬უ‫ྷݔ‬ ࠌఇᅞ዆Բ(CMRR) ๼‫؜‬༬Ⴀ! ! ๼‫ۉ؜‬უӦ‫!ޗ‬ ! ๼‫!ୁۉ؜‬ ! ඹႠ޶ሜൻ‫!ۯ‬ ‫ۉ‬ᇸ ! ߾ፕ‫ྷݔ‬ ! ৢༀ‫ୁۉ‬ ! ৢༀ‫্—ୁۉ‬ᆩ ! ‫ۉ‬ᇸᅞ዆Բ(PSRR) +PSRR −PSRR ্ᆩDŽਸ࠲ࠀీDž DIS๼෇‫ۉ‬უ DIS๼෇‫ୁۉ‬ ཉॲ! ፌၭኵ! ‫ۆ‬႙ኵ! VO = 0.1 V‫ރރ‬ኵ VO = 2.0 V‫ރރ‬ኵ +࣬ް/−࣬ް VO = 2 Vօ৊ VO = 2 V‫ރރ‬ኵօ৊ 21 4.6 fC = 40 kHz, VO = 2 V‫ރރ‬ኵ, HD2/HD3 fC = 100 kHz, VO = 2 V‫ރރ‬ኵ, HD2/HD3 fC = 1 MHz, VO = 2 V‫ރރ‬ኵ, HD2/HD3 f = 100 kHz f = 100 kHz ‫ٷݣ‬ഗA1ई‫ٷݣ‬ഗA2 INࢅREF INࢅREF (+OUT − −OUT)/(IN − REF) 1.98 −1 30 6.5 320/650 22 300 MHz MHz ns V/μs ns −116/−112 −101/−98 −75/−71 10.2 1.6 dBc dBc dBc nV/√Hz pA/√Hz 0.2 1.0 0.1 0.3 3 0.1 2.00 1 INࢅREF INࢅREF ፌ‫ٷ‬ኵ! ‫ڇ‬࿋ 0.8 0.4 4.5 2.01 +1 5 24 1.4 CMRR = VOS, dm/VCM, VREF = VIN, VCM= 0.2 V዁1.9 V, G = 4 0.2 81 ߳‫܋ڇ‬๼‫؜‬LjG = 4 ±2.90 20%ࡗ؋LjVO, dm = 200 mV‫ރރ‬ኵ 105 MΩ pF V dB ±2.95 25 20 V mA pF 1.9 2.7 2.2 10 PSRR = VOS, dm/ΔV S, G = 4 ্ᆩLjDIS = ߛ ๑ీLjDIS = ‫گ‬ ্ᆩLjDIS = ߛ ๑ీLjDIS = ‫گ‬ ਸഔ้क़ ࠲Կ้क़ Rev. B | Page 3 of 24 86 86 mV μV/°C mV μV/°C μA μA V/V % ppm 12 2.4 16 V mA μA 100 110 dB dB ≥1.5 ≤1.0 5.5 4 0.7 30 V V μA μA μs μs 8 6 ADA4941-1 ‫ݥأ‬ଷᆶຫ௽LjTA = 25°CLjVS = 5 VLjOUT+থFB (G = 2)LjRL, dm = 1 kΩLjREF = 2.5 Vă Table 2. ֖ຕ ‫ۯ‬ༀႠీ -3 dB‫੻ټ‬ ! ࡗൻ࣬ް้क़ ! უӦ୲ 0.005%ॺ૬้क़ ሯำ/฿ኈႠీ ! ၿհ฿ኈ RTO‫ۉ‬უሯำ ! ๼෇‫ୁۉ‬ሯำ ኱ୁႠీ ! ֶ‫ݴ‬๼‫؜‬฿ۙ‫ۉ‬უ ! ֶ‫ݴ‬๼෇฿ۙ‫ۉ‬უ೏ᅎ ! ‫܋ڇ‬๼෇฿ۙ‫ۉ‬უ ! ‫܋ڇ‬๼෇฿ۙ‫ۉ‬უ೏ᅎ ! ๼෇ೋዃ‫ୁۉ‬ ! ๼෇฿ۙ‫ୁۉ‬ ! ሺᅮ ! ሺᅮဃֶ ! ሺᅮဃֶ೏ᅎ ๼෇༬Ⴀ ! ๼෇‫ۉ‬ፆ ! ๼෇‫ۉ‬ඹ ! ๼෇ࠌఇ‫ۉ‬უ‫ྷݔ‬ ! ࠌఇᅞ዆Բ(CMRR) ๼‫؜‬༬Ⴀ ! ๼‫ۉ؜‬უӦ‫ޗ‬ ! ๼‫ୁۉ؜‬ ! ඹႠ޶ሜൻ‫ۯ‬ ‫ۉ‬ᇸ ߾ፕ‫ྷݔ‬ ৢༀ‫ୁۉ‬ ৢༀ‫্—ୁۉ‬ᆩ ‫ۉ‬ᇸᅞ዆Բ(PSRR) +PSRR -PSRR ্ᆩDŽਸ࠲ࠀీDž DIS๼෇‫ۉ‬უ DIS๼෇‫ୁۉ‬ ཉॲ! ፌၭኵ! ‫ۆ‬႙ኵ! VO = 0.1 V‫ރރ‬ኵ VO = 2.0 V‫ރރ‬ኵ +࣬ް/-࣬ް VO = 2 Vօ৊ VO = 6 V‫ރރ‬ኵօ৊ 22 4.9 fC = 40 MHz, VO = 2 V‫ރރ‬ኵ, HD2/HD3 fC = 100 MHz, VO = 2 V‫ރރ‬ኵ, HD2/HD3 fC = 1 MHz, VO = 2 V‫ރރ‬ኵ, HD2/HD3 f = 100 kHz f = 100 kHz ‫ٷݣ‬ഗA1ई‫ٷݣ‬ഗA2 INࢅREF INࢅREF (+OUT - -OUT)/(IN - REF) 1.98 −1 31 7 200/600 24.5 610 MHz MHz ns V/μs ns −118/−119 −110/−112 −83/−73 10.2 1.6 dBc dBc dBc nV/√Hz pA/√Hz 0.2 1.0 0.1 0.3 3 0.1 2 1 INࢅREF INࢅREF ፌ‫ٷ‬ኵ! ‫ڇ‬࿋ 0.8 0.4 4.5 2.01 +1 5 24 1.4 CMRR = VOS, dm/VCM, VREF = VIN,VCM = 0.2 V዁3.9 V, G = 4 0.2 84 ߳‫܋ڇ‬๼‫؜‬LjG = 4 ±4.85 20%ࡗ؋LjVO, dm = 200 mV‫ރރ‬ኵ 106 MΩ pF V dB ±4.93 25 20 V mA pF 3.9 2.7 2.3 12 PSRR = VOS, dm/ΔV S, G = 4 ্ᆩLjDIS = ߛ ๑ీLjDIS = ‫گ‬ ্ᆩLjDIS = ߛ ๑ీLjDIS = ‫گ‬ ਸഔ้क़ ࠲Կ้क़ Rev. B | Page 4 of 24 87 87 mV μV/°C mV μV/°C μA μA V/V % ppm 12 2.6 20 V mA μA 100 110 dB dB ≥1.5 ≤1.0 5.5 4 0.7 30 V V μA μA μs μs 8 6 ADA4941-1 ‫ݥأ‬ଷᆶຫ௽LjTA = 25°CLjVS = ±5 VLjOUT+থFB (G = 2)LjRL, dm = 1 kΩLjREF = 0 Vă ՗3 ֖ຕ ‫ۯ‬ༀႠీ -3 dB‫੻ټ‬ ! ࡗൻ࣬ް้क़ ! უӦ୲ 0.005%ॺ૬้क़ ሯำ/฿ኈႠీ ! ၿհ฿ኈ RTO‫ۉ‬უሯำ ! ๼෇‫ୁۉ‬ሯำ ኱ୁႠీ! ! ֶ‫ݴ‬๼‫؜‬฿ۙ‫ۉ‬უ! ! ֶ‫ݴ‬๼෇฿ۙ‫ۉ‬უ೏ᅎ! ! ‫܋ڇ‬๼෇฿ۙ‫ۉ‬უ! ! ‫܋ڇ‬๼෇฿ۙ‫ۉ‬უ೏ᅎ! ! ๼෇ೋዃ‫!ୁۉ‬ ! ๼෇฿ۙ‫!ୁۉ‬ ! ሺᅮ! ! ሺᅮဃֶ! ! ሺᅮဃֶ೏ᅎ! ๼෇༬Ⴀ ! ๼෇‫ۉ‬ፆ ! ๼෇‫ۉ‬ඹ ! ๼෇ࠌఇ‫ۉ‬უ‫ྷݔ‬ ! ࠌఇᅞ዆Բ(CMRR) ๼‫؜‬༬Ⴀ! ! ๼‫ۉ؜‬უӦ‫!ޗ‬ ! ๼‫!ୁۉ؜‬ ! ඹႠ޶ሜൻ‫!ۯ‬ ‫ۉ‬ᇸ ! ߾ፕ‫ྷݔ‬ ! ৢༀ‫ୁۉ‬ ! ৢༀ‫্—ୁۉ‬ᆩ ! ‫ۉ‬ᇸᅞ዆Բ(PSRR) +PSRR −PSRR ্ᆩDŽਸ࠲ࠀీDž DIS๼෇‫ۉ‬უ DIS๼෇‫ୁۉ‬ ཉॲ! ፌၭኵ! ‫ۆ‬႙ኵ! ፌ‫ٷ‬ኵ! ‫ڇ‬࿋ VO = 0.1 V‫ރރ‬ኵ VO = 2.0 V‫ރރ‬ኵ +࣬ް/−࣬ް VO = 2 Vօ৊ VO = 12 V‫ރރ‬ኵօ৊ 23 5.2 32 7.5 200/650 26 980 MHz MHz ns V/μs ns −118/−119 −109/−112 −84/−75 10.2 1.6 dBc dBc dBc nV/√Hz pA/√Hz fC = 40 kHz, VO = 2 V‫ރރ‬ኵ, HD2/HD3 fC = 100 kHz, VO = 2 V‫ރރ‬ኵ, HD2/HD3 fC = 1 MHz, VO = 2 V‫ރރ‬ኵ, HD2/HD3 f = 100 kHz f = 100 kHz ‫ٷݣ‬ഗA1ई‫ٷݣ‬ഗA2 INࢅREF INࢅREF (+OUT − −OUT)/(IN − REF) 1.98 −1 0.2 1.0 0.1 0.3 3 0.1 2 1 INࢅREF INࢅREF 0.8 0.4 4.5 2.01 +1 5 24 1.4 CMRR = VOS, dm/VCM, VREF = VIN, VCM= -4.8 V዁+3.9 V, G = 4 ߳‫܋ڇ‬๼‫؜‬LjG = 4 −4.8 85 VS − 0.25 20%ࡗ؋LjVO, dm = 200 mV‫ރރ‬ኵ 105 MΩ pF V dB VS ± 0.14 25 20 V mA pF +3.9 2.7 2.5 15 PSRR = VOS, dm/ΔV S, G = 4 ্ᆩLjDIS = ߛ ๑ీLjDIS = ‫گ‬ ্ᆩLjDIS = ߛ ๑ీLjDIS = ‫گ‬ ਸഔ้क़ ࠲Կ้क़ Rev. B | Page 5 of 24 87 87 mV μV/°C mV μV/°C μA μA V/V % ppm 12 2.7 26 V mA μA 100 110 dB dB ≥ −3 ≤ −4 7 4 0.7 30 V V μA μA μs μs 10 6 ADA4941-1 ਨ‫ܔ‬ፌ‫ۨܮٷ‬ኵ ՗4 ֖ຕ ‫ۨܮ‬ኵ ‫ۉ‬ᇸ‫ۉ‬უ ࠀࡼ ٪‫ئ‬࿒‫ྷݔ܈‬ ߾ፕ࿒‫ྷݔ܈‬ ᆅগ࿒‫ࡰ(܈‬থ10௱) ঳࿒ 12 V ९཮3 −65°C዁+125°C −40°C዁+85°C 300°C 150°C ጀᅪLj‫؜ג‬ฉຎਨ‫ܔ‬ፌ‫ۨܮٷ‬ኵ੗ీࣷ‫ڞ‬ዂഗॲᆦ৳Ⴀ໦ ࣋ăኄኻ๟‫ۨܮ‬ፌኵLjփภतഗॲሞኄၵईඪࢆഄ໲ཉॲ ူ‫؜ג‬Ԩरຍࡀ߭ኸՔ‫ీࠀڦ‬Ⴀ֡ፕă‫׊‬೺ሞਨ‫ܔ‬ፌ‫ܮٷ‬ ۨኵཉॲူ߾ፕࣷᆖၚഗॲ‫ڦ‬੗੍Ⴀă ඤፆ θJAኍ‫ܔ‬ፌֶཉॲLjनଭഘୁ้ഗॲࡰথሞ‫ۉ‬ୟӱฉ)नഄ ࡰಎࡰথ‫ڟ‬PCB՗௬ฉ‫ࡰڦ‬ಎ)ැ๢ᆩ*LjഄዐPCBথ੨ᇑཟ ֫ඤ၎૶ă ‫ހ‬ጎ‫(ࡼࠀڦ‬PD)ྺৢༀࠀࡼᇑ‫ހ‬ጎዐ໯ᆶ๼‫޶ڦ؜‬ሜൻ‫ۯ‬ ໯‫ڞ‬ዂ‫ࡼࠀڦ‬ኮࢅLjܸৢༀࠀࡼሶྺ‫ۉ‬ᇸᆅগኮक़‫ۉڦ‬უ (VS)‫ױ‬ᅜৢༀ‫(ୁۉ‬IS)ă޶ሜൻ‫ۯ‬໯‫ڞ‬ዂ‫ࡼࠀڦ‬ൽਦᇀਏ༹ ᆌᆩă‫ܔ‬ᇀ߳๼‫؜‬Lj޶ሜൻ‫ۯ‬໯‫ڞ‬ዂ‫ڪࡼࠀڦ‬ᇀ޶ሜ‫ୁۉ‬ ‫ױ‬ᅜഗॲా‫ڦ‬၎࠲უইă໯ᆶ޶ሜ‫ڪࡼࠀڦ‬ᇀ߳޶ሜࠀࡼ ‫ڦ‬ጺࢅăฉຎऺ໙ዐՂႷ๑ᆩRMS‫ۉ‬უࢅ‫ୁۉ‬ă ഘୁ੗ሺഽොඤLjܸٗᆶၳই‫گ‬θJAăُྔLj߸‫ূܠ‬ຌ኱থ ᇑূຌጽ၍‫ހڦ‬ጎᆅগĂཚ੥Ă‫ۉࢅں‬ᇸ֫থ‫ة‬Ljኄཞᄣ ੗ই‫گ‬θJAă‫ހ‬ጎ‫ڹ‬և஋୞‫ࡰڦ‬ಎՂႷࡰথ‫ڟ‬ᇑཟ֫ඤ၎૶ ‫ڦ‬PCBথ੨ฉ‫ࡰڦ‬ಎLjܸٗํ၄ኸۨ‫ڦ‬θJAă ཮3၂๖ሞJEDECՔጚ4֫ӱฉLj8ᆅগSOIC(126°C/W)ࢅ8 ᆅগLFCSP(83°C/W)ଇዖ‫ހ‬ጎ‫ڦ‬ፌ‫ٷ‬Ҿඇࠀࡼᇑ࣍ৣ࿒‫܈‬ ‫࠲ڦ‬ဣăLFCSP‫ڹڦ‬ևࡰಎՂႷࡰথ‫ڟ‬ᇑPCB֫ඤ၎૶‫ڦ‬ ࡰಎăθJAኵ਩ྺৎຼኵă 2.5 θJA 126 83 θJC 28 19 ‫ڇ‬࿋ qC/W qC/W ፌ‫!ࡼࠀٷ‬ ADA4941-1‫ހ‬ጎా‫ڦ‬ፌ‫ٷ‬Ҿඇࠀࡼ๴၌ᇀ၎ᆌ‫ڦ‬ႊೌ঳࿒ )TJ*‫ߛืڦ‬൧઄ă‫ڟٳ‬ի૱ࣅገՎ࿒‫܈‬150°Cፑᆸ้Lj໒ଙ ‫ڦ‬༬Ⴀࣷ݀ิ߀Վăन๑ኻ๟ሡ้‫ࡗג‬ኄᅃ࿒‫܈‬၌ኵᄺᆶ ੗ీ߀Վ‫ހ‬ጎ‫ܔ‬ႊೌፕᆩ‫ڦ‬ᆌ૰Ljܸٗᆦ৳Ⴀ‫ں‬ገՎ ADA4941-1‫֖ڦ‬ຕႠీă‫้׊‬क़‫ࡗג‬150°C‫ڦ‬঳࿒ࣷ‫ڞ‬ዂႊ ೌഗॲ‫؜‬၄ՎࣅLjᅺܸ੗ీሰ‫ࠤׯ‬ቱă 2.0 LFCSP 1.5 1.0 SOIC 0.5 0 –40 –20 0 20 40 60 80 AMBIENT TEMPERATURE (°C) ཮3. 4֫ӱፌ‫ࡼࠀٷ‬ᇑ࿒‫࠲ڦ܈‬ဣ ESDয়ߢ! ESD(ৢ‫ߌ௺)ۉݣۉ‬ഗॲăৢ‫࢔ࢁۉۉ‬ඹᅟሞට༹ࢅ֪๬ยԢฉેओLj੗ߛ‫ٳ‬4000 VLjժ੗ీሞுᆶִ ਥ‫ڦ‬൧઄ူ‫ۉݣ‬ă৑࠶Ԩׂ೗ਏᆶጆᆩESDԍࢺ‫ۉ‬ୟLj‫ڍ‬ሞᇜ‫ీߛڟ‬ଉৢ‫้ۉݣۉ‬Lj੗ీࣷ݀ิᆦ৳ Ⴀഗॲ໦࣋ăᅺُLjॺᅱ֑ൽ๢‫ڦړ‬ESD‫ٯݔݞ‬แLjᅜՆ௨ഗॲႠీူইईࠀీෟ฿ă Rev. B | Page 6 of 24 100 120 05704-002 ‫ހ‬ጎૌ႙! 8-Lead SOIC on 4-Layer Board 8-Lead LFCSP with EP on 4-Layer Board MAXIMUM POWER DISSIPATION (W) ՗5. ඤፆ ADA4941-1  FB 1 8 IN REF 2 7 DIS V+ 3 6 V– OUT+ 4 5 OUT– 05704-101 ᆅগದዃࢅࠀీ௮ຎ! NOTES 1. THE EXPOSED PAD IS NOT ELECTRICALLY CONNECTED TO THE DEVICE. IT IS TYPICALLY SOLDERED TO GROUND OR A POWER PLANE ON THE PCB THAT IS THERMALLY CONDUCTIVE. ཮4.ᆅগದዃ ՗6. ᆅগࠀీ௮ຎ ᆅগՊࡽ! 1 2 3 4 5 6 7 8 ᆅগఁ‫!׬‬ FB REF V+ OUT+ OUT− V− DIS IN ௮ຎ! ‫ݒ‬ઍ๼෇ एጚ‫ۉ‬უ๼෇ ኟ‫ۉ‬ᇸ! ཞ၎๼‫؜‬ ‫ݒ‬၎๼‫؜‬ ޶‫ۉ‬ᇸ ্ᆩ ๼෇! Rev. B | Page 7 of 24 ADA4941-1  ‫ۆ‬႙߾ፕ༬Ⴀ! VS = +5V VS = ±5V 10 1000 100 FREQUENCY (MHz) NORMALIZED CLOSED-LOOP GAIN (dB) +25°C –40°C 1000 100 FREQUENCY (MHz) 05704-005 NORMALIZED CLOSED-LOOP GAIN (dB) +85°C 10 2 1 0 –1 –2 –3 –4 –5 –6 –7 –8 –9 –10 –11 –12 –13 –14 –15 –16 0.1 NORMALIZED CLOSED-LOOP GAIN (dB) RL, dm = 5kΩ 10 100 FREQUENCY (MHz) 1000 05704-006 NORMALIZED CLOSED-LOOP GAIN (dB) RL, dm = 1kΩ 1 VO, dm = 6V p-p +85°C –40°C +25°C 1 100 10 ཮9. փཞ࿒‫ٷڦူ܈‬႑ࡽೕ୲ၚᆌ VO, dm = 0.1V p-p RL, dm = 500Ω 100 10 FREQUENCY (MHz) ཮6. փཞ࿒‫ڦူ܈‬ၭ႑ࡽೕ୲ၚᆌ 2 1 0 –1 –2 –3 –4 –5 –6 –7 –8 –9 –10 –11 –12 –13 –14 –15 1 ཮8. փཞ‫ۉ‬ᇸူ‫ٷڦ‬႑ࡽೕ୲ၚᆌ VO, dm = 0.1V p-p 1 VS = +5V VO, dm = 6V p-p FREQUENCY (MHz) ཮5. փཞ‫ۉ‬ᇸူ‫ڦ‬ၭ႑ࡽೕ୲ၚᆌ 2 1 0 –1 –2 –3 –4 –5 –6 –7 –8 –9 –10 –11 –12 –13 –14 –15 –16 VS = ±5V VO, dm = 12V p-p 05704-008 1 VS = +3V VO, dm = 2V p-p 2 1 0 –1 –2 –3 –4 –5 –6 –7 –8 –9 –10 –11 –12 –13 –14 –15 –16 0.1 VO, dm = 6V p-p RL, dm = 1kΩ RL, dm = 500Ω RL, dm = 5kΩ 1 FREQUENCY (MHz) ཮10. փཞፆႠ޶ሜူ‫ٷڦ‬႑ࡽೕ୲ၚᆌ ཮7. փཞፆႠ޶ሜူ‫ڦ‬ၭ႑ࡽೕ୲ၚᆌ Rev. B | Page 8 of 24 10 05704-009 VS = +3V 2 1 0 –1 –2 –3 –4 –5 –6 –7 –8 –9 –10 –11 –12 –13 –14 –15 –16 0.1 05704-007 VO, dm = 0.1V p-p NORMALIZED CLOSED-LOOP GAIN (dB) 2 1 0 –1 –2 –3 –4 –5 –6 –7 –8 –9 –10 –11 –12 –13 –14 –15 –16 05704-004 NORMALIZED CLOSED-LOOP GAIN (dB) ‫ݥأ‬ଷᆶຫ௽LjVS = 5 VLjRL, dm = 1 kΩLjREF = 2.5 VLjDIS = LOWLjOUT+኱থ૶থ‫ڟ‬FB (G = 2)LjTA = 25°Că ADA4941-1 G = +2 G = +10 1 G = –2 100 10 FREQUENCY (MHz) G = +4 G = +2 G = –2 G = +10 1 NORMALIZED GAIN (dB) CL = 0pF 100 1000 FREQUENCY (MHz) 05704-011 2 1 0 –1 –2 –3 –4 –5 –6 –7 –8 –9 –10 –11 –12 –13 –14 –15 –16 0.1 VO, dm = 2V p-p VO, dm = 6V p-p 1 1000 100 ཮15. փཞ๼‫ڦူ܈ޗ؜‬ೕ୲ၚᆌ –70 VREF = 0.05V p-p VO, dm = 2V p-p VREF = MIDSUPPLY –80 DISTORTION (dBc) VS = ±5V –90 –100 HD3 –110 –120 VS = +3V RL = 2kΩ –130 VS = +5V 1 10 FREQUENCY (MHz) RL = 1kΩ HD2 1000 05704-012 NORMALIZED CLOSED-LOOP GAIN (dB) 10 FREQUENCY (MHz) ཮12. փཞඹႠ޶ሜူ‫ڦ‬ၭ႑ࡽೕ୲ၚᆌ 2 1 0 –1 –2 –3 –4 –5 –6 –7 –8 –9 –10 –11 –12 –13 –14 –15 –16 VO, dm = 0.1V p-p ཮13. փཞ‫ۉ‬ᇸူ‫ڦ‬REF๼෇ၭ႑ࡽೕ୲ၚᆌ –140 0.1 RL = 500Ω HD2 1 10 100 FREQUENCY (kHz) ཮16. փཞ޶ሜူ฿ኈᇑೕ୲‫࠲ڦ‬ဣ Rev. B | Page 9 of 24 1000 05704-015 NORMALIZED CLOSED-LOOP GAIN (dB) ཮14. փཞሺᅮူ‫ٷڦ‬႑ࡽೕ୲ၚᆌ CL = 20pF 10 1000 FREQUENCY (MHz) VO, dm = 0.1V p-p 1 100 10 ཮11. փཞሺᅮူ‫ڦ‬ၭ႑ࡽೕ୲ၚᆌ 2 1 0 –1 –2 –3 –4 –5 –6 –7 –8 –9 –10 –11 –12 –13 –14 –15 –16 VO, dm = 2V p-p 05704-014 G = +4 2 1 0 –1 –2 –3 –4 –5 –6 –7 –8 –9 –10 –11 –12 –13 –14 –15 –16 05704-013 VO, dm = 0.1V p-p NORMALIZED CLOSED-LOOP GAIN (dB) 2 1 0 –1 –2 –3 –4 –5 –6 –7 –8 –9 –10 –11 –12 –13 –14 –15 –16 05704-010 NORMALIZED CLOSED-LOOP GAIN (dB)  ADA4941-1  –65 –65 f = 10kHz VS = ±5V –85 DISTORTION (dBc) VS = +5V –95 HD3 –115 HD3 HD2 2 4 6 8 10 12 14 16 18 20 –145 0 4 6 8 10 12 14 16 20 18 ཮20. փཞ‫ۉ‬ᇸူ฿ኈᇑ๼‫࠲ڦ܈ޗ؜‬ဣ(G = -2) –70 VO, dm = 2V p-p VREF = MIDSUPPLY VO, dm = 2V p-p VREF = MIDSUPPLY –80 DISTORTION (dBc) –85 –90 –90 –100 –105 –110 HD2 –115 –120 HD3 –125 –130 HD2 –110 HD2 –120 HD2 HD3 VS = +3V HD3 –135 –140 0.1 1 VS = ±5V 10 1000 100 FREQUENCY (kHz) G = +2 –140 0.1 0.12 1 10 1000 100 CL = 0pF VOUT = 200mV p-p 0.08 OUTPUT VOLTAGE (V) VO = 6V p-p –80 –85 –90 –95 –100 –105 –110 CL = 20pF 0.04 0 –0.04 VO = 2V p-p HD2 HD3 –125 –130 HD3 HD2 1 10 100 FREQUENCY (kHz) 1000 ཮19. փཞ๼‫ူ܈ޗ؜‬฿ኈᇑೕ୲‫࠲ڦ‬ဣ –0.12 50ns/DIV ཮22. փཞඹႠ޶ሜူ‫ڦ‬ၭ႑ࡽຨༀၚᆌ Rev. B | Page 10 of 24 05704-022 –0.08 05704-045 –135 –140 0.1 G = +4 HD3 ཮21. փཞሺᅮူ฿ኈᇑೕ୲‫࠲ڦ‬ဣ –60 –115 –120 HD3 FREQUENCY (kHz) ཮18. փཞ‫ۉ‬ᇸူ฿ኈᇑೕ୲‫࠲ڦ‬ဣ –65 –70 –75 G = –2 –130 VS = +5V 05704-020 –95 –100 05704-017 DISTORTION (dBc) 2 OUTPUT AMPLITUDE (V p-p) –75 –80 DISTORTION (dBc) HD3 HD2 ཮17. փཞ‫ۉ‬ᇸူ฿ኈᇑ๼‫࠲ڦ܈ޗ؜‬ဣ(G = +2) –60 VS = ±5V HD3 HD3 –115 –135 OUTPUT AMPLITUDE (V p-p) –65 –70 VS = +5V HD2 HD3 0 VS = +3V –105 –125 HD2 –125 –95 05704-019 –105 05704-016 DISTORTION (dBc) VS = +3V –85 –135 DIFFERENTIAL G = –2 f = 10kHz –75 –75 ADA4941-1  0.12 VS = +3V 8 VOUT = 200mV p-p 0.08 VS = +5V OR VS = ±5V OUTPUT VOLTAGE (V) OUTPUT VOLTAGE (V) VS = ±5V VO, dm = 12V p-p 6 0.04 0 –0.04 VS = ±2.5V VO, dm = 6V p-p 4 2 VS = ±1.5V VO, dm = 2V p-p 0 –2 –4 –0.08 ཮23. փཞ‫ۉ‬ᇸူ‫ڦ‬ၭ႑ࡽຨༀၚᆌ 8 1.2 0.6 0 0 –2 –0.6 2 × VIN –1.2 –6 7 ERROR = 2 × VIN – VO, dm 6 0 VO, dm 4 10 –0.9 –1.2 1 ཮27. ॺ૬้क़(0.005%)LjVS = +5 V 8 INPUT × 2 6 8 OUTPUT OUTPUT VOLTAGE (V) 6 –0.6 1μs/DIV ཮24. ॺ૬้क़(0.005%)LjVS = ±5 V 12 –0.3 2 × VIN 2 –2.4 0.6 0.3 5 3 –1.8 1μs/DIV –8 0.9 VS = +5V VO, dm = 6V p-p 4 2 0 –2 –4 INPUT × 2 4 2 OUTPUT 0 –2 –4 –6 –8 1μs/DIV –12 05704-024 –6 –10 1μs/DIV –8 ཮25. ๼෇ࡗൻ࣬ްLjVS = ±5 V ཮28. ๼෇ࡗൻ࣬ްLjVS = +5 V Rev. B | Page 11 of 24 05704-027 –4 OUTPUT VOLTAGE (V) AMPLITUDE (V) ERROR = 2 × VIN – VO, dm 2 1.8 1.2 ERROR (mV) 1 DIV = 0.005% VS = ±5V VO, dm = 12V p-p 9 AMPLITUDE (V) 6 2.4 ERROR (mV) 1 DIV = 0.005% VO, dm 4 05704-021 ཮26. փཞ‫ۉ‬ᇸူ‫ٷڦ‬႑ࡽຨༀၚᆌ 05704-023 8 200ns/DIV –8 05704-026 –0.12 05704-018 –6 50ns/DIV ADA4941-1  0 0.18 ±5V SUPPLIES, POSITIVE RAIL OUTPUT SATURATION VOLTAGE WITH RESPECT TO RAIL (V) –10 –20 –30 PSRR (dB) –40 +PSRR –50 –60 –PSRR –70 –80 –90 0.16 0.14 ±5V SUPPLIES, NEGATIVE RAIL 0.12 +5V SUPPLIES, POSITIVE RAIL 0.10 +5V SUPPLIES, NEGATIVE RAIL 0.08 +3V SUPPLIES, POSITIVE RAIL 0.06 –100 0.1 1 10 100 1000 FREQUENCY (MHz) 0.04 –40 +3V SUPPLIES, NEGATIVE RAIL –20 0 20 40 ཮29. ‫ۉ‬ᇸᅞ዆Բᇑೕ୲‫࠲ڦ‬ဣ 100 120 2.5 ICC @ VS = ±5V VPD = VS– 2.0 SUPPLY CURRENT (mA) 3.0 VS = +5V 2.5 VS = ±5V 2.0 VS = +3V 1.5 ICC @ VS = +3V ICC @ VS = +5V 1.5 1.0 0.5 1.0 –40 –20 0 20 40 60 80 100 120 TEMPERATURE (°C) –0.5 0.6 ཮30. ‫ۉ‬ᇸ‫ୁۉ‬ᇑ࿒‫࠲ڦ܈‬ဣ 1.0 1.2 1.4 1.6 1.8 2.0 ཮33. ‫ۉ‬ᇸ‫ୁۉ‬ᇑਸ࠲‫ۉ‬უ‫࠲ڦ‬ဣ 140 150 120 125 VOS_A2 = 10V 100 0.8 DISABLE INPUT VOLTAGE WITH RESPECT TO VS– (V) 05704-032 0 05704-029 100 FREQUENCY VOS_A2 = 5V 75 VOS_A2 = 3V 80 VOS1 MEAN = –8μV STD. DEV = 47μV VOS2 MEAN = 11μV STD. DEV = 20μV NO. OF UNITS = 611 60 50 40 VOS_A1 10V VOS_A1 = 5V 40 60 80 TEMPERATURE (°C) 100 120 0 OFFSET VOLTAGE (μV) ཮31. ֶ‫ݴ‬๼‫؜‬฿ۙ‫ۉ‬უᇑ࿒‫࠲ڦ܈‬ဣ ཮34. ֶ‫ݴ‬๼‫؜‬฿ۙ‫ݴ‬ք཮ Rev. B | Page 12 of 24 05704-033 20 80 100 120 140 160 180 200 0 60 –20 20 40 0 –40 20 05704-030 VOS_A1 = 3V –20 0 25 –200 –180 –160 –140 –120 –100 –80 –60 –40 POWER SUPPLY CURRENT (mA) 80 ཮32. ๼‫؜‬ԏࢅ‫ۉ‬უᇑ࿒‫࠲ڦ܈‬ဣ 3.5 DIFFERENTIAL OUTPUT OFFSET (μV) 60 TEMPERATURE (°C) 05704-031 0.01 05704-028 –110 0.001 ADA4941-1  DIFFERENTIAL OUTPUT VOLTAGE NOISE (nV/√Hz) 100 28 INPUT CURRENT NOISE (pA/√Hz) 26 10 24 22 20 18 16 14 12 10 8 6 4 10 100 1k 10k 100k 1M 10M 100M FREQUENCY (Hz) 0 05704-034 1 10 1 10k 100k 1M ཮38. ๼෇‫ୁۉ‬ሯำᇑೕ୲‫࠲ڦ‬ဣ 3.5 2.65 VS = ±5V INPUT BIAS CURRENT (μA) INPUT BIAS CURRENT (μA) 1k FREQUENCY (Hz) ཮35. ֶ‫ݴ‬๼‫ۉ؜‬უሯำᇑೕ୲‫࠲ڦ‬ဣ 2.60 100 05704-037 2 1 VS = +5V 2.55 VS = +3V 2.50 2.45 3.0 2.5 VS = +3V VS = ±5V VS = +5V 2.0 –25 –10 5 20 35 50 65 80 95 125 110 TEMPERATURE (°C) 1.5 –0.5 05704-035 0 0.5 2.0 2.5 3.0 3.5 4.0 4.5 5.0 5.5 6.0 6.5 7.0 7.5 8.0 8.5 9.0 9.5 10.0 INPUT VOLTAGE WITH RESPECT TO VS– (V) 4.0 REFERENCE INPUT BIAS CURRENT (μA) 3.3 3.2 REFERENCE I BIAS = 10V 3.1 3.0 REFERENCE I BIAS = 5V 2.9 REFERENCE I BIAS = 3V 2.8 –20 0 20 40 60 80 100 TEMPERATURE (°C) 120 VREF = VIN 3.5 3.0 VS = +3V VS = ±5V VS = +5V 2.5 2.0 05704-036 REFERENCE BIAS CURRENT (μA) 1.5 ཮39. ๼෇ೋዃ‫ୁۉ‬ᇑ๼෇‫ۉ‬უ‫࠲ڦ‬ဣ ཮36. փཞ‫ۉ‬ᇸူ๼෇ೋዃ‫ୁۉ‬ᇑ࿒‫࠲ڦ܈‬ဣ 2.7 –40 1.0 0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5 5.0 5.5 6.0 6.5 7.0 7.5 8.0 8.5 9.0 10.0 9.5 REFERENCE INPUT VOLTAGE WITH RESPECT TO VS– (V) ཮40. REF๼෇ೋዃ‫ୁۉ‬ᇑREF๼෇‫ۉ‬უ‫࠲ڦ‬ဣ ཮37. REF๼෇ೋዃ‫ୁۉ‬ᇑ࿒‫࠲ڦ܈‬ဣ Rev. B | Page 13 of 24 05704-039 2.35 –40 05704-038 2.40 ADA4941-1 14 VS = ±5V G=4 RF = 1kΩ RL = ∞ DIS = HIGH 8 12 DISABLE INPUT CURRENT (μA) DISABLED SUPPLY CURRENT (μA) 10 VS = ±5V 6 VS = +5V 4 VS = +3V 2 10 8 6 4 –20 0 20 40 60 80 100 120 TEMPERATURE (°C) 0 05704-040 0 –40 0 1 2 3 4 5 6 7 8 9 10 DISABLE INPUT VOLTAGE WITH RESPECT TO VS– (V) ཮41. ሏ‫࠲ݣ‬Կ้փཞ‫ۉ‬ᇸူ‫ۉ‬ᇸ‫ୁۉ‬ᇑ࿒‫࠲ڦ܈‬ဣ 05704-043 2 ཮44.ਸ࠲๼෇‫ୁۉ‬ᇑਸ࠲๼෇‫ۉ‬უ‫࠲ڦ‬ VO, dm 500mV/DIV 500mV/DIV VO, dm VPD 40μs/DIV 05704-044 05704-041 VPD 40μs/DIV ཮42. ࠲Կዃ࿋้क़ ཮45. ࠲Կް࿋้क़ –40 100 VIN = 50mV p-p –50 10 VON IMPEDANCE (Ω) –70 –80 1 0.1 0.01 VOP –90 –110 0.1 1 10 100 1000 FREQUENCY (MHz) ཮43. ሏ‫࠲ݣ‬Կ้๼෇዁๼‫߰؜‬૗ᇑೕ୲‫࠲ڦ‬ဣ 0.0001 0.001 0.01 0.1 1 10 FREQUENCY (MHz) ཮46. ‫܋ڇ‬๼‫؜‬ፆੇᇑೕ୲‫࠲ڦ‬ဣ Rev. B | Page 14 of 24 100 05704-025 0.001 –100 05704-042 ISOLATION (dB) –60 ADA4941-1 ߾ፕᇱ૙ ADA4941-1๟ᅃ੼‫ࡼࠀگ‬Ă‫܋ڇ‬๼෇Ăֶ‫ݴ‬๼‫ٷݣ؜‬ഗLj ժ ኍ ‫ ܔ‬ൻ ‫ ݴ ߛ ۯ‬Ր ୲ ADC৊ ႜ କ ᆫ ࣅ ă ཮ 47ቛ ๖ କ ADA4941-1‫ۆڦ‬႙૶থ‫ݛ‬๕ă޿‫ٷݣ‬ഗᆯᅃ߲‫ݥ‬ጆᆩ‫ٷݣ‬ ഗA1ൻ‫ۯ‬ᅃ߲৛௢ొՎഗA2ăA1‫޶ڦ‬ट๼෇ԥᆅ‫ڟ؜‬ᆅ গ1(FB)LjܸٗሎႹᆩࢽ‫ܔ‬ሺᅮ৊ႜՊ‫ײ‬ă‫ݒ‬၎ሏ໙‫ٷݣ‬ഗ A2৛ඓ‫ݒ‬ገA1‫ڦ‬๼‫؜‬႑ࡽVOPLj৊ׂܸิ๼‫؜‬႑ࡽVONă ‫ړ‬RF = 0ܸRGԥ‫أ‬ඁ้Lj‫ײݛ‬3੗०ࣅྺူ๕ǖ ཮48. ມ‫ۉ‬ᇸĂG = 2.4Ă‫܋ڇ‬ገֶ‫ٷݣݴ‬ഗ ཮48๟ມ‫ۉ‬ᇸ૶থ‫ڦ‬๖૩ăԨ૩ዐLjVGࢅVREF਩ยྺ 0 VLj൐ྔևRFࢅRGྪஏ๑A1༵ࠃ1.2‫ڦ‬ཞ၎ሺᅮăԨ૩؊ ‫ݴ‬૧ᆩࡆ‫ࡆڟ‬๼‫؜‬पăሺᅮࠅ๕ྺǖ ཮47. एԨ૶থ(࿄၂๖‫ۉ‬ᇸ) แे‫ڟ‬REFᆅগ‫ۉڦ‬უ৽๟๼‫ࠌ؜‬ఇ‫ۉ‬უă൩ጀᅪLjแे ‫ڟ‬REFᆅগ‫ۉڦ‬უժփࣷᆖၚOUT+ᆅগ‫ۉڦت‬უăᅺ ُLj๼‫؜‬ኮक़੗ᅜ٪ሞֶ‫ݴ‬฿ۙLjܸཞ้ీࠕइ‫ڥ‬໯Ⴔ‫ڦ‬ ๼‫ࠌ؜‬ఇ‫ۉ‬უă૩සLjVOP = 3.5 V൐VON = 1.5 V้Lj๼‫؜‬ ࠌఇ‫ۉ‬უ‫ڪ‬ᇀ2.5 VLj৽ࢅଇ߲๼‫؜‬਩ྺ2.5 V้ᅃᄣăሞമ ᅃዖ൧઄ူLjֶ‫ۉݴ‬უ(ई฿ۙ)ྺ2.0 VLjܸሞࢫᅃዖ൧઄ ူLjֶ‫ۉݴ‬უྺ0 Văऺ໙๼‫ۉ؜‬უ้LjՂႷཞ้੊୯ֶ ‫ۉݴ‬უࢅࠌఇ‫ۉ‬უLjᅜՆ௨փႴᄲ‫ݴֶڦ‬฿ۙă ‫ڦ૴ز‬825 Ω‫ۉ‬ፆᇑᆅগ8੗ց‫׋‬A1๼෇฿ۙ‫ۉڦิׂୁۉ‬ უဃֶăA1ࢅA2‫ڦ‬၍Ⴀ๼‫ྷݔ؜‬੗ᅜકቛ዁߳ࠃ‫ࡆۉ‬ 200 mVᅜాLjܸٗሎႹሞ֑ᆩ±5 V‫ۉ‬ᇸࠃ‫ํ้ۉ‬၄19.2 V ‫ރރڦ‬ኵֶ‫ݴ‬๼‫ۉ؜‬უă एԨ߾ፕᇱ૙! ཮47ዐLjRGࢅRFࠓ‫ྔׯ‬ևሺᅮยዃྪஏăVGࢅVREF਩ྺ ྔևแे‫ۉڦ‬უăVO, cmۨᅭྺ๼‫ࠌ؜‬ఇ‫ۉ‬უLjܸVO, dm ۨᅭྺ๼‫ֶ؜‬ఇ‫ۉ‬უăٗ཮47੗ᅜ‫؜ڥ‬ᅜူ‫ײݛ‬ǖ ཮49. +5V‫ۉڇ‬ᇸĂG=2‫܋ڇ‬ገֶ‫ٷݣݴ‬ഗ ཮49၂๖‫ڦ‬๟ᆩ5 V‫ۉڇ‬ᇸ૶থ‫ڇڦ‬࿋ሺᅮ߶ໜഗA1ăREF ᆅগ‫ڦت‬2.5 V‫ۉ‬უॽ๼‫ࠌ؜‬ఇ‫ۉ‬უยዃྺ2.5 Vă‫ࡧڿد‬ຕ ྺǖ Rev. B | Page 15 of 24 ADA4941-1  ഄዐLj၍Ⴀ๼‫ۉ؜‬უ๴၌ᇀA1ă‫้܋گ‬LjໜጣVOPደॷথ ৎ200 mVLjA1‫ڦ‬๼‫؜‬ਸ๔ԏࢅժ൐၍Ⴀ‫؜܈‬၄ူইăߛ‫܋‬ ้Ljᅃ‫ڋ‬VIN‫ࡗג‬4 V(VCC‫ڦ‬1 V‫)ాྷݔ‬LjA1๼෇नՎ‫ׯ‬ԏ ࢅժ൐၍Ⴀ‫؜܈‬၄ူইăኄࣷॽ཮49໯๖‫ۉ‬ୟ‫ڦ‬၍Ⴀֶ‫ݴ‬ ๼‫ۉ؜‬უ၌዆ሞ‫ٷ‬ሀ7.6 V‫ރރ‬ኵă ֑ᆩࡀ߭༬Ⴀ՗ዐ‫ڦ‬ຕ਍ሞऺ໙ဃֶ้Lj๑ᆩ๼෇฿ۙ‫ۉ‬ ୁઠ‫߳༺پ‬๼෇ೋዃ‫ୁۉ‬ཚ‫׉‬ၳࡕࣷ߸ࡻă๼෇฿ۙ‫ୁۉ‬ ۨᅭྺଇ߲๼෇ೋዃ‫ୁۉ‬ኮक़‫ֶڦ‬ኵă૧ᆩُۨᅭLj߳๼ ෇ೋዃ‫ୁۉ‬਩੗֑ᆩଇ߲๼෇ೋዃ‫ڦୁۉ‬ೝ਩ኵ(IB)ࢅ๼ ෇฿ۙ‫(ୁۉ‬IOS)‫ڦ‬ႚ๕՗๖LjनIBP, N = IB ± IOS/2ă‫ړ‬RS = RF || RG้Lj኱ୁဃֶፌၭăُ้Lj‫ײݛ‬9੗ᅜ०ࣅྺǖ ‫ײݛ‬10՗๖‫ڦ‬๟VON๼‫ڦت؜‬኱ୁ‫ۉ‬უဃֶă ೌాण‫ׯ‬500 Ω‫ాڦ‬և‫ۉ‬ፆLj੗ॽᅺA2ዐ๼෇฿ۙ‫ܸୁۉ‬ሰ ‫ڦׯ‬኱ୁဃֶই‫ڟ‬ፌ‫گ‬ă‫ړ‬RS_REF = 0 Ω้Ljဃֶፌၭăُ ้Lj‫ײݛ‬10੗ᅜ०ࣅྺǖ ཮50. 5 V‫ۉ‬ᇸࠃ‫ۉ‬ĂG = 5Ă‫܋ڇ‬ገֶ‫ٷݣݴ‬ഗ ཮50၂๖‫ڦ‬๟G = 5้‫ڦ‬5 V‫ۉڇ‬ᇸ૶থăRFࢅRGྪஏॽA1 ‫ڦ‬ሺᅮยዃྺ2.5LjܸREF๼෇‫ڦت‬2.5 V‫ۉ‬უ੗༵ࠃᅜ2.5 V ྺዐ႐‫ڦ‬๼‫ࠌ؜‬ఇ‫ۉ‬უă‫ࡧڿد‬ຕྺǖ VOP − VON = 5(VIN) − 5 V (8) A1ࢅA2‫ڦ‬๼‫ྷݔ؜‬၌዆ࣷॽ཮50໯๖‫ۉ‬ୟ‫ݴֶڦ‬๼‫ۉ؜‬უ ၌዆ሞ‫ٷ‬ሀ8.4 V‫ރރ‬ኵă ֶ‫ݴ‬๼‫ۉ؜‬უဃֶ(VO_error,dm)๟VOP_errorࢅVON_error ኮक़‫ֶڦ‬ኵǖ ُྔLjADA4941-1ฉ߳‫ٷݣ‬ഗ‫ڦ‬๼‫؜‬฿ۙ‫ۉ‬უ࣏ਏᆶᆶ၌ ࠌఇᅞ዆Բ(CMRR)Ă‫ۉ‬ᇸᅞ዆Բ(PSRR)ࢅ኱ୁਸ࣍ሺᅮ (AVOL)‫ڪ‬ၳᆌă ኱ୁဃֶऺ໙! ഄዐǖ VOS_nom๟փԈઔCMRRĂPSRRࢅAVOLၳᆌ‫ڦ‬Ք‫׬‬๼‫؜‬฿ۙ ‫ۉ‬უă Δ՗๖Ք‫׬‬ཉॲՎࣅă ཮51. ኱ୁဃֶᇸ ཮51၂๖‫ڦ‬๟኱ୁ๼‫ۉ؜‬უဃֶ‫ڦ‬ዷᄲઠᇸă‫ܔ‬ᇀ߳๼ ‫؜‬Ljጺ‫ۉ‬უဃֶ੗๑ᆩຄဒ‫ڦ‬ሏ໙‫ٷݣ‬ഗ߁౒৊ႜऺ໙ă ‫ײݛ‬9՗๖‫ڦ‬๟VOP๼‫ڦت؜‬኱ୁ‫ۉ‬უဃֶă V CM ྺ๼෇ࠌఇ‫ۉ‬უ)‫ܔ‬ᇀ A1LjྺIN‫ۉڦت‬უLjܸ‫ܔ‬ᇀ A2LjሶྺREF‫ۉڦت‬უ*ă VSྺ‫ۉ‬ᇸ‫ۉ‬უă VOUTྺඪᅃሏ໙‫ٷݣ‬ഗ๼‫؜‬ă Rev. B | Page 16 of 24 ADA4941-1  ՗7Ă՗8ࢅ՗9၂๖‫ڦ‬๟཮48Ă཮49ࢅ཮50໯๖‫ۉ‬ୟ‫ۆڦ‬႙ ဃֶᇨ໙ă RF = 1.0 kΩ, RG = 4.99 kΩ, RS_IN = 825 Ω, RS_REF = 0 Ω ཮52၂๖‫ڦ‬๟ADA4941-1ֶ‫ݴ‬๼‫ۉ؜‬უሯำ‫ڦ‬ዷᄲઠᇸă ֶ‫ݴ‬๼‫؜‬ሯำ਩‫ۉݛ‬უ‫ڪ‬ᇀཞ၎ཚ‫(ڢ‬A1)ሯำ਩‫ۉݛ‬უ‫ڦ‬ ଇԠेฉᇑ‫ݒ‬၎ཚ‫(ڢ‬A2)၎࠲‫ڦ‬ሯำ਩‫ۉݛ‬უၜă ՗7. ཮48໯๖G = 2.4‫ٷݣ‬ഗ‫ڦ‬๼‫ۉ؜‬უဃֶᇨ໙ ဃֶᇸ VOS_A1 IBP_A1 IBN_A1 VOS_A2 ‫ۆ‬႙ኵ 0.1 mV 3 μA 3 μA 0.1 mV VOP_error +0.12 mV +2.48 mV −2.48 mV 0 mV VON_error −0.12 mV −2.48 mV +2.48 mV +0.2 mV VO_dm_error +0.24 mV −4.96 mV +4.96 mV +0.2 mV ጺ V O_error, dm = 0.44 mV RF = 0 Ω, RG = ∞, RS_IN = 0 Ω, RS_REF = 0 Ω ՗8. ཮49໯๖‫ٷݣ‬ഗ‫ڦ‬๼‫ۉ؜‬უဃֶᇨ໙ ဃֶᇸ ‫ۆ‬႙ኵ VOS_A1 IBP_A1 IBN_A1 VOS_A2 0.1 mV 3 μA 3 μA 0.1 mV ഄዐVON_n2‫ऺڦ‬໙ࠅ๕සူǖ! VOP_error +0.1 mV +2.48 mV −2.48 mV 0 mV VON_error −0.1 mV −2.48 mV +2.48 mV +0.2 mV VO_dm_error +0.2 mV −4.96 mV +4.96 mV +0.2 mV ഄዐǖ ጺ VO_error, dm = 0.4 mV vn_A1ࢅ vn_A2‫ݴ‬՚๟A1ࢅA2‫ڦ‬๼෇‫ۉ‬უሯำLjժ਩‫ڪ‬ᇀ 2.1 nV/√Hză RF = 1.02 kΩ, RG = 665 Ω, RS_IN = 402 Ω, RS_REF = 0 Ω in_A1 Ă in_A2 Ă ip_A1 ࢅ ip_A2 ๟‫ٷݣ‬ഗ‫ڦ‬๼෇‫ୁۉ‬ሯำ ၜLjժ਩‫ڪ‬ᇀ1 pA/√Hză ՗9. ཮50໯๖G = 5‫ٷݣ‬ഗ‫ڦ‬๼‫ۉ؜‬უဃֶᇨ໙ ဃֶᇸ ‫ۆ‬႙ኵ VOS_A1 IBP_A1 IBN_A1 VOS_A2 0.1 mV 3 μA 3 μA 0.1 mV VOP_error +0.25 mV +1.21 mV −1.21 mV 0 mV VON_error −0.25 mV −1.21 mV +1.21 mV +0.2 mV VO_dm_error +0.5 mV −2.4 mV +2.4 mV +0.2 mV RS、RFࢅRG‫ݴ‬՚๟ྔևᇸĂ‫ݒ‬ઍࢅሺᅮ‫ۉ‬ፆă kT๟ਨ‫ܔ‬࿒‫ױ܈‬ᅜհܻጦத‫׉‬ຕLj๪࿒ူ‫ڪ‬ᇀ4.2 x 10-21W-să ጺ V O_error, dm = 0.7 mV RS_REF๟REFᆅগ‫ڦت‬ᇸፆੇă ๼‫ۉ؜‬უሯำ ॽA1ᆩፕ‫ڇ‬࿋ሺᅮ߶ໜഗ้Lj๼‫ۉ؜‬უሯำೕ೷௢‫܈‬ፌ ၭLjྺ10 nV/√Hză‫ۉ‬უሺᅮሁߛLj๼‫ۉ؜‬უሯำሁ‫ٷ‬ă ՗10Ă՗11ࢅ՗12၂๖‫ڦ‬๟཮48Ă཮49ࢅ཮50໯๖‫ۉ‬ୟ‫ڦ‬ ሯำࠋ၅ࢅ๼‫ۉ؜‬უሯำă ཮52. ሯำᇸ Rev. B | Page 17 of 24 ADA4941-1  ՗10. ཮48໯๖G = 2.4ֶ‫ٷݣݴ‬ഗ‫ڦ‬๼‫ۉ؜‬უሯำ ሯำᇸ vn_A1 ip_A1 in_A1 √4 kTRF √4 kTRG √4 kTRS vn_inverter √RS_REF ip_A2 × RS_REF ‫ۆ‬႙ኵ 2.1 nV/√Hz 1 pA/√Hz 1 pA/√Hz 4 nV/√Hz 9 nV/√Hz 3.6 nV/√Hz 9.2 nV/√Hz 0 0 VOPࠋ၅ኵ(nV√Hz) 2.5 1 1 4 1.8 4.4 0 0 0 VONࠋ၅ኵ(nV√Hz) 2.5 1 1 4 1.8 4.4 9.2 0 0 VO, dmࠋ၅ኵ(nV√Hz) 5 2 2 8 3.6 8.8 9.2 0 0 ጺऺ 6.8 11.4 16.5 RF = 1.0 kΩLjRG = 4.99 kΩLjRS = 825 ΩLjRS_REF = 0 Ωă vn_inverter= A2तഄ၎࠲ాև1 kΩ‫ݒ‬ઍ‫ۉ‬ፆࢅ500 Ω฿ۙ‫ୁۉ‬ೝ࢚‫ۉ‬ፆ‫ڦ‬ሯำࠋ၅ă ՗11. ཮49໯๖G = 2ֶ‫ٷݣݴ‬ഗ‫ڦ‬๼‫ۉ؜‬უሯำ ሯำᇸ vn_A1 ip_A1 in_A1 √4 kTRF √4 kTRG √4 kTRS vn_inverter √RS_REF ip_A2 × RS_REF ‫ۆ‬႙ኵ 2.1 nV/√Hz 0 0 0 0 0 9.2 nV/√Hz 0 0 VOPࠋ၅ኵ(nV√Hz) 2.1 0 0 0 0 0 0 0 0 VONࠋ၅ኵ(nV√Hz) 2.1 0 0 0 0 0 9.2 0 0 VO, dmࠋ၅ኵ(nV√Hz) 4.2 0 0 0 0 0 9.2 0 0 ጺऺ 2.1 9.4 10 RF = 0 Ω, RG = ∞, RS = 0 Ω, RS_REF = 0 Ω. ՗12. ཮50໯๖G = 5ֶ‫ٷݣݴ‬ഗ‫ڦ‬๼‫ۉ؜‬უሯำ ሯำᇸ vn_A1 ip_A1 in_A1 √4 kTRF √4 kTRG √4 kTRS vn_inverter √RS_REF ip_A2 × RS_REF ‫ۆ‬႙ኵ 2.1 nV/√Hz 1 pA/√Hz 1 pA/√Hz 4 nV/√Hz 3.26 nV/√Hz 2.54 nV/√Hz 9.2 nV/√Hz 0 0 VOPࠋ၅ኵ(nV√Hz) 5.25 1 1 4 4.9 6.54 0 0 0 VONࠋ၅ኵ(nV√Hz) 5.25 1 1 4 4.9 6.54 9.2 0 0 VO, dmࠋ၅ኵ(nV√Hz) 10.5 2 2 8 9.8 13.1 9.2 0 0 ጺऺ 10.7 14.1 23.1 RF = 1.02 kΩ, RG = 665 Ω, RS = 402 Ω, RS_REF = 0 Ω. Rev. B | Page 18 of 24 ADA4941-1  ೕ୲ၚᆌᇑԿ࣍ሺᅮ ADA4941-1ዐ๑ᆩ‫ڦ‬๟‫ۉ‬უሏ໙‫ٷݣ‬ഗă ໲‫ڦ‬ਸ࣍ೕ୲ၚ ᆌ߶ओ‫ݴ‬ഗၚᆌૌຼă ੂ཮53ă ‫ݒ‬၎‫ٷݣ‬ഗA2ਏᆶᅃ߲ࠦۨ‫ݒڦ‬ઍྪஏă‫ࡧڿد‬ຕ‫ٷ‬ዂ ྺǖ A1‫ڦ‬ೕ୲ၚᆌൽਦᇀ‫ײݛ‬15໯՗๖‫ྔڦ‬և‫ݒ‬ઍྪஏăᅺ ُLjጺֶ‫ݴ‬๼‫ۉ؜‬უྺǖ ཮53. ADA4941-1ሏ໙‫ٷݣ‬ഗਸ࣍ሺᅮᇑೕ୲‫࠲ڦ‬ဣ ‫ܔ‬ᇀ௅߲‫ٷݣ‬ഗLjೕ୲ၚᆌ੗ཚࡗူ๕৊ႜৎຼऺ໙ǖ ॽ߳ၜ၎‫ױ‬ժูඁ੗ࢮ୼փऺ‫ڦ‬ၜन੗‫ڟڥ‬ᅜူৎຼኵǖ !!!!!!!!)ཞ၎ၚᆌ* !!!!!!!!(‫ݒ‬၎ၚᆌ) fCRྺ‫ٷݣ‬ഗ‫ڦ‬ሺᅮ‫੻ټ‬ೕ୲(ഄዐ཮53໯๖‫ڦ‬ਸ࣍ሺᅮ‫ڪ‬ᇀ 1)ăଇ߲‫ٷݣ‬ഗ‫ڦ‬fCR਩ሀྺ50 MHză ُ‫ࡧڿد‬ຕᆶଇ߲ट‫ۅ‬Ljܸড‫گ‬ೕ୲‫ڦ‬ट‫ࣷۅ‬၌዆ֶ‫ݣݴ‬ ‫ ٷ‬ഗ ‫ ੻ ټ ڦ‬ă ස ࡕVOP‫ ܌‬ୟ ዁ IN−) A1ྺ ‫ ڇ‬࿋ ሺ ᅮ ߶ ໜ ഗ*Lj‫ݒ‬၎ཚ‫ڦڢ‬25 MHzԿ࣍‫ࣷ੻ټ‬၌዆ኝ༹‫੻ټ‬ă‫ړ‬A1 ֑ᆩডߛሯำሺᅮ้Lj‫ࣷ੻ټ‬๴၌ᇀA1‫ڦ‬Կ࣍‫੻ټ‬Ljܸࢫ ኁᇑሯำሺᅮ(1 + RF/RG)‫ݒׯ‬Բă૩සLjසࡕྔև‫ݒ‬ઍྪ ஏ‫ڦ‬ሯำሺᅮྺ10Ljሶ‫ࣷ੻ټ‬ই዁5 MHză Rev. B | Page 19 of 24 ADA4941-1  ᆌᆩ ߁ຎ ADA4941-1๟ᅃ੼੗ۙሺᅮĂ‫܋ڇ‬ገֶ‫ۉݴ‬უ‫ٷݣ‬ഗLjժ ኍ‫ܔ‬ൻ‫ݴߛۯ‬Ր୲ADC৊ႜକᆫࣅă‫܋ڇ‬ገֶ‫ݴ‬ሺᅮᆯᅃ ߲‫ݒ‬ઍྪஏ੦዆Lj޿ྪஏᆯᅜူଇ߲ྔև‫ۉ‬ፆࠓ‫ׯ‬ǖRFࢅ R Gă ๑ᆩREFᆅগ REFᆅগॽ๼‫؜‬ए၍ยዃሞ‫ݒ‬၎ୟ০ዐLjժᆩፕ๼෇႑ࡽ ‫ڦ‬एጚăሞ‫ٷ‬և‫ݴ‬ᆌᆩዐLjREFᆅগยዃྺ๼෇႑ࡽዐक़ Ӧ‫ۉޗ‬ೝLj࢔‫ࢪ้ܠ‬ᄺ‫ྺ׬‬ዐक़‫ۉ‬ᇸ‫ۉ‬უă‫ܔ‬ᇀມटႠ႑ ࡽࢅມ‫ۉ‬ᇸࠃ‫ۉ‬LjREFཚ‫׉‬ยዃྺ‫ۉں‬უăሞ‫ۉڇ‬ᇸᆌᆩ ዐLjॽREFยዃྺ๼෇႑ࡽዐक़Ӧ‫ۉޗ‬ೝ੗༵ࠃਏᆶፌၭ ֶ‫ݴ‬฿ۙ‫ڦ‬ፌᆫ๼‫ۯ؜‬ༀ‫ྷݔ‬Ⴀీă൩ጀᅪLjREF๼෇ኻ ࣷᆖၚ‫ݒ‬၎႑ࡽୟ০ईVONă ‫ܠٷ‬ຕᆌᆩᄲ൱ሞ߳๼‫ࠃ༵܋؜‬ਏᆶ၎ཞ኱ୁࠌఇ‫ۉ‬ೝ‫ڦ‬ ֶ‫ݴ‬๼‫؜‬႑ࡽăሞVOPࢅVONฉ֪ଉ‫ڦڟ‬႑ࡽ੗ీਏᆶ໯ Ⴔ‫ۉ‬ೝ‫ࠌڦ‬ఇ‫ۉ‬უLj‫ڍ‬௅‫ڦ܋‬๼‫ۉ؜‬უ੗ీփᅃᄣăཚ‫׉‬ ࣷՆ௨ُૌ႑ࡽLjᅺྺ໲࿮݆ᆶၳ‫ں‬૧ᆩ‫ٷݣ‬ഗ‫ڦ‬๼‫ۯ؜‬ ༀ‫ྷݔ‬ă ැॽVINۨᅭྺแे‫ڟ‬๼෇ᆅগ‫ۉڦ‬უLjሶਦۨଇ߲႑ࡽ ୟ০‫ݴײݛڦ‬՚ྺ‫ײݛ‬21ࢅ‫ײݛ‬22ă VOP = VIN (21) VON = −VIN + 2 (REF) (22) ‫ړ‬REF‫ۉ‬უยዃྺ๼෇႑ࡽ‫ڦ‬ዐक़Ӧ‫ۉޗ‬ೝLjሶଇ߲๼‫؜‬ ႑ࡽࣷዘ۠Ljܸ൐฿ۙࣷ३ณ‫ڟ‬ፌၭăܸॽREF‫ۉ‬უยዃ ‫ڟ‬ඪࢆഄ໲‫ݛں‬Ljሶࣷ‫ڞ‬ዂଇ߲๼‫؜‬ኮक़‫؜‬၄฿ۙă ྺକ৊ᅃօຫ௽REFᆅগ‫ڦ‬ፌॅᆩ݆Ljူ௬ઠੂੂ‫ۉ‬ᇸ‫ۉ‬ უྺ10 V൐๼෇႑ࡽ࿋ᇀ2 Vࢅ7 Vኮक़‫ۉڇڦ‬ᇸӄ૩ăԨ ૩ዐ๼෇႑ࡽ‫ڦ‬ዐक़Ӧ‫ۉޗ‬ೝժփ๟ዐक़‫ۉ‬ᇸ‫ۉ‬უLjܸ๟ 4.5 VăཚࡗॽREF๼෇ยዃྺ4.5 Vժࢮ୼฿ۙLjሶ੗๑ᆩ ‫ײݛ‬21ࢅ‫ײݛ‬22ઠऺ໙঳ࡕă‫ړ‬๼෇႑ࡽ࿋ᇀዐक़‫ۅ‬4.5 V ้LjOUT+ྺ4.5 VLj‫ٷ‬ၭᇑVONᅃᄣăኄ੗๫ፕᅃዖए၍ ጒༀLjֶُ้‫ݴ‬๼‫ۉ؜‬უྺ0ă‫ړ‬๼෇ሺे‫ڟ‬7 V้LjVOP ߶ጷ๼෇ሺे‫ڟ‬7 VLjܸVONࣷই዁2 Văኄ੗๫ፕᅃ߲ኟ ‫ރ‬ኵ႑ࡽLjֶُ้‫ݴ‬๼‫ۉ؜‬უ‫ڪ‬ᇀ5 Vă‫ړ‬๼෇႑ࡽই዁2 V้LjVOPምْ߶ጷ዁2 VLjܸVONࣷሺे‫ڟ‬7 Văኄ੗๫ ፕᅃ߲޶‫ރ‬ኵ႑ࡽLjֶُ้‫ݴ‬๼‫ۉ؜‬უ‫ڪ‬ᇀ−5 VăᅺُLj ໯‫ݴֶڥ‬๼‫ۉ؜‬უྺ10 V‫ރރ‬ኵă ٗኮമ‫ڦ‬༪ஃ੗ᅜੂ‫ٷ؜‬ၭྺ2‫܋ڇڦ‬ገֶ‫ݴ‬ሺᅮ๟සࢆ ํ၄‫ڦ‬ă ాև‫ݒ‬ઍྪஏࠀࡼ ‫د‬ཥሏ໙‫ٷݣ‬ഗժփԈࡤೌా‫ݒ‬ઍᇮॲLjܸADA4941-1ದ ᆶଇ߲ೌా1 kΩ‫ۉ‬ፆLjኄଇ߲‫ۉ‬ፆࠓ‫ׯ‬କᅃ߲ాև‫ݒ‬ઍ࣍ ୟăሞऺ໙޿ഗॲ‫ڦ‬ጺࠀࡼ้LjՂႷ੊୯ኄၵ‫ۉ‬ፆ‫ࠀڦ‬ ࡼăగၵ൧઄ူLjኄၵ‫ۉ‬ፆ‫ࡼࠀڦ‬੗ీᇑ޿ഗॲ‫ৢڦ‬ༀࠀ ࡼփ၎ฉူă૩සLj‫ۉ‬ᇸ‫ۉ‬უྺ±5 VĂREFᆅগথ‫ں‬Lj൐ OUT−ྺ+4 VDC้Lj௅߲1 kΩ‫ۉ‬ፆฉ‫ྺୁۉڦ‬4 mALjᅺُ ௅߲‫ۉ‬ፆ‫ྺࡼࠀڦ‬16 mWLjଇ߲‫ۉ‬ፆ‫ڦ‬ጺࠀࡼྺ32 mWă ኄᇑৢༀࠀࡼփ၎ฉူLjᅺُऺ໙ഗॲጺࠀࡼ้ՂႷ੊୯ ሞాă‫ܔ‬ᇀ኱ୁ႑ࡽLjሶႴᄲ৊ႜ਩‫ݴߵݛ‬ဆă ্ᆩ༬Ⴀ ADA4941-1ਏᆶਸ࠲ࠀీLj੗ሞ༬้ۨक़ॽ࿮ᆩഗॲ‫ࠀڦ‬ ࡼই዁ፌ‫گ‬ăዃ࿋้Ljਸ࠲ࠀీփࣷॽഗॲ๼‫؜‬ዃᇀߛፆ ੇईෙༀཉॲူăਸ࠲༬Ⴀྺߛ‫ۉ‬ೝᆶၳăᆶ࠲ߛ‫ۉگ‬ೝ ‫ۉ‬უ༬ႠLj൩֖९ࡀ߭༬Ⴀ՗ă Rev. B | Page 20 of 24 ADA4941-1  ཁे3ट‫ۅ‬Sallen-Key୳հഗ ཮54ቛ๖‫ڦ‬๟3ट‫ۅ‬Sallen-Key‫گ‬ཚ୳հഗLj ໲‫ڦ‬প዁ೕ୲ ๟100 kHză໯Ԉࡤ‫ڦ‬1.69 kΩ‫ۉ‬ፆᆩᇀॽᅺA1ዐ๼෇฿ۙ ‫ୁۉ‬ሰ‫ڦׯ‬኱ୁဃֶই዁ፌၭă໯ൻ‫ڦۯ‬ADCገ࣑ഗཚ‫׉‬ Ⴔᄲֶ‫ݴ‬ሏ‫ݣ‬ሞ๼‫܋؜‬ದዃ࿮ᇸRC୳հഗă޿୳հഗ‫ڦ‬ೕ ୲ၚᆌ൸၍ස཮55໯๖ă ADA4941-1ዐ‫ڦ‬ཞ၎‫ٷݣ‬ഗ੗ᆩፕSallen-Key୳հഗ‫࣐ڦ‬؋ ‫ٷݣ‬ഗăܸ3ट‫گۅ‬ཚ୳հഗ੗ยऺᆩᇀሞADCኮമ၌዆ ႑ࡽ‫੻ټ‬ă๼෇႑ࡽ๯ံୁࡗཞ၎पժሞ޿‫ت‬৊ႜࡗ୳ă থጣLj୳հࢫ‫ڦ‬႑ࡽୁࡗ‫ݒ‬၎पLjᅜइ‫ࢻڥ‬ց๼‫؜‬ă OUT+ 3 10nF 562Ω 562Ω 1.69kΩ 1 562Ω 8 FB VS+ 6 560pF 3.9nF OUT– A2 REF + VO, dm – 0.1μF 1kΩ VS– 2 33Ω 2.7nF 1kΩ +5V A1 IN 4 5 33Ω 2.7nF 500Ω –5V 0.1μF 05704-058 VIN ཮54. Sallen-Key‫گ‬ཚ୳հഗᇑ100 kHzপኹೕ୲ 0 VO, dm = 3V p-p –10 –20 VO, dm/VIN (dB) –30 –40 –50 –60 –70 –80 –100 10 100 1k 10k 100k 1M FREQUENCY (Hz) ཮55. ཮54໯๖‫ۉ‬ୟ‫ڦ‬ೕ୲ၚᆌ Rev. B | Page 21 of 24 10M 100M 05704-059 –90 ADA4941-1  ൻ‫ۯ‬AD7687 ADC −2ሺᅮದዃ ADA4941-1๟ᅃ੼๢ࢇAD7687‫ݴߛڪ‬Ր୲ADC‫؜ڦ‬෥ൻ‫ۯ‬ ഗLjස཮56໯๖ăԨ૩Ԉࡤ཮54໯๖‫ڦ‬Sallen-Key‫گ‬ཚ୳հ ഗLj‫ํڍ‬ाฉ੗ᆶ੗࿮ă཮56໯๖‫ۉڦ‬ୟথ๴Ӧ‫ޗ‬ሞ0 Vࢅ 3 Vኮक़‫܋ڇڦ‬๼෇႑ࡽă ADA4941-1੗ᅜሞሺᅮྺ−2‫ڦ‬ದዃူ߾ፕă၂඗Lj−2‫ڦ‬ሺ ᅮ੗ཚࡗ०‫࣑ࢻںڇ‬+2ሺᅮ‫ۉ‬ୟ‫ڦ‬๼‫؜‬ઠํ၄Lj‫ڍ‬๟ُ‫ت‬ ঻ถ‫ڦ‬ದዃᆶ໯փཞă޿ದዃ֑ᆩ޶ሺᅮઠഽۙ๼෇‫ٷݣ‬ ഗ(A1)๟ፕྺ‫ݒ‬၎‫ٷݣ‬ഗ๑ᆩLjܸփ๟ሞഄ‫׉‬९ཞ၎ఇ๕ ူ߾ፕăኟසഄఁ‫׬‬໯๖LjٗVIN‫ڟ‬VO, dm‫ۉڦ‬უሺᅮྺ− 2 V/Văᆶ࠲‫ۉ‬ᇸ‫ۉ‬უྺ±5 V้−2ሺᅮದዃ‫ڦ‬൧઄Lj൩֖ ९཮57ă ADR443༵ࠃ࿘ۨĂ‫گ‬ሯำ‫ڦ‬3 Vएጚ‫ۉ‬უᇸLj඗ࢫ޿एጚ ‫ۉ‬უᇸᆯഄዐᅃ߲AD8032‫ٷݣ‬ഗ࣐؋ժแे‫ڟ‬AD7687 REF๼෇‫܋‬Ljܸ༵ٗࠃ6 V‫ݴֶڦ‬๼෇஢ଉ‫ۉײ‬ೝăཞ้Lj एጚ‫ۉ‬უ࣏ࣷ৊ႜܾ‫ݴ‬ೕࢅ࣐؋‫ت‬૙LjܸٗၠADA4941-1 ༵ࠃ1.5 V‫ڦ‬ዐक़‫ۉ‬ᇸ‫ۉ‬უREF‫ۉ‬ೝă −2ሺᅮದዃሞਏᆶ੻๼෇Ӧ‫ڦޗ‬ᆌᆩዐፌྺᆶᆩLjᅺྺ๼ ෇ࠌఇ‫ۉ‬უࣷԍ‫ۉ࢛ۨ׼‬ೝăᅺُLj႑ࡽ‫ٷ‬ၭ๴၌ᇀ๼‫؜‬ Ӧ‫ޗ‬၌዆ă−2ሺᅮਏᆶ‫گ‬๼෇ፆੇLj‫ٷ‬ၭ‫ڪ‬ᇀRGă +5V 0.1μF OUT+ 1kΩ 3 10nF 562Ω VS+ IN 8 VS– ADA4941-1 2 REF 500Ω 6 VIN 0V TO 3V 560pF 3.9nF 2 0.1μF VIN VOUT GND 33Ω 4 IN– GND REF 5 1 0.1μF +5V +5V 10μF 5 2.7nF –5V ADR443 OUT– A2 IN+ VDD AD7687 0.1μF 1kΩ A1 2 3 10μF 0.1μF 6 3 8 1 0.1μF 2 4 1/2 4 AD8032 10μF 1kΩ 5 7 1kΩ 6 1/2 AD8032 ཮56. ADA4941-1ൻ‫ۯ‬AD7687 ADC RF 1kΩ OUT+ 3 RG 1kΩ 1 8 VIN FB 1kΩ +5V VS+ VS– 2 500Ω 6 + VO, dm – 1kΩ A1 IN 4 A2 REF 500Ω –5V ཮57. −2ሺᅮದዃ Rev. B | Page 22 of 24 OUT– 5 05704-060 562Ω FB 33Ω 2.7nF 05704-061 562Ω 1.69kΩ 1 4 ADA4941-1 ྔႚ؅٫ 5.00 (0.1968) 4.80 (0.1890) 8 4.00 (0.1574) 3.80 (0.1497) 1 5 4 6.20 (0.2441) 5.80 (0.2284) 1.27 (0.0500) BSC 1.75 (0.0688) 1.35 (0.0532) 0.25 (0.0098) 0.10 (0.0040) 0.51 (0.0201) 0.31 (0.0122) COPLANARITY 0.10 SEATING PLANE 0.50 (0.0196) 0.25 (0.0099) 45° 8° 0° 0.25 (0.0098) 0.17 (0.0067) 1.27 (0.0500) 0.40 (0.0157) 012407-A COMPLIANT TO JEDEC STANDARDS MS-012-AA 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. ཮58. 8ᆅগՔጚၭ႙‫ހ‬ጎ[SOIC_N] ቏༹(R-8) ཮๖؅٫‫ڇ‬࿋ǖmmࢅ(inches) 0.60 MAX 5 PIN 1 INDICATOR 2.95 2.75 SQ 2.55 TOP VIEW 8 12° MAX SEATING PLANE 0.50 0.40 0.30 0.70 MAX 0.65 TYP 0.05 MAX 0.01 NOM 0.30 0.23 0.18 0.20 REF 1.60 1.45 1.30 EXPOSED PAD (BOTTOM VIEW) 4 0.90 MAX 0.85 NOM 0.50 BSC 0.60 MAX 1 1.89 1.74 1.59 PIN 1 INDICATOR FOR PROPER CONNECTION OF THE EXPOSED PAD, REFER TO THE PIN CONFIGURATION AND FUNCTION DESCRIPTIONS SECTION OF THIS DATA SHEET. 090308-B 3.25 3.00 SQ 2.75 ཮59. 8ᆅগᆅগॐࠓႊೌप‫ހ‬ጎ[LFCSP_VD] 3 mm x 3 mmLj‫ג‬ԋ༹Ljມଚᆅগ(CP-8-2) ཮๖؅٫‫ڇ‬࿋ǖmm ۩ࠔኸళ ႙ࡽ! ADA4941-1YRZ ADA4941-1YRZ-RL ADA4941-1YRZ-R7 ADA4941-1YCPZ-R2 ADA4941-1YCPZ-RL ADA4941-1YCPZ-R7 1 ࿒‫!ྷݔ܈‬ −40°C ዁ +125°C −40°C ዁ +125°C −40°C ዁ +125°C −40°C ዁ +125°C −40°C ዁ +125°C −40°C ዁ +125°C ‫ހ‬ጎ௮ຎ! 8ᆅগSOIC_N 8ᆅগSOIC_N 8ᆅগSOIC_N 8ᆅগLFCSP_VD 8ᆅগLFCSP_VD 8ᆅগLFCSP_VD Z = ‫ࢇޙ‬RoHSՔጚ‫ڦ‬ग़ඹഗॲă Rev. B | Page 23 of 24 ‫ހ‬ጎ჋ၜ! R-8 R-8 R-8 CP-8-2 CP-8-2 CP-8-2 ۩ࠔຕଉ! 98 2,500 1,000 250 5,000 1,500 Ք๎ H0C H0C H0C ADA4941-1 ጀ๥ ©2009–2010 Analog Devices, Inc. All rights reserved. Trademarks and registered trademarks are the property of their respective owners. D05704-0-3/09(A) Rev. B | Page 24 of 24