AD7689ACPZRL7

16࿋Ă4/8ཚ‫ڢ‬ 250 kPSP PulSAR ADC AD7682/AD7689 ࠀీ઀཮ ༬Ⴀ ᆌᆩ ‫ܠ‬ཚ‫ڢ‬ဣཥ॔੦ ‫ۉࠃ׾ۉ‬ยԢ ᅅଐᅏഗǖECG/EKG ᅎ‫ۯ‬ཚ႑ǖGPS ‫ۉ‬૰၍॔੦ ຕ਍֑ण ‫ں‬ኒຕ਍֑णဣཥ ᅏഗᅏ՗ ࡗ‫ײ‬੦዆ 2.3V TO 5.5V 0.5V TO VDD 10μF REFIN REF BAND GAP REF VDD 1.8V VIO TO VDD AD7689 TEMP SENSOR IN0 IN1 IN2 IN3 IN4 IN5 IN6 IN7 CNV MUX 16-BIT SAR ADC ONE-POLE LPF SPI SERIAL INTERFACE SCK SDO DIN SEQUENCER COM 07353-001 16࿋‫ݴ‬Ր୲Ă࿮฿ஓ 4ཚ‫(ڢ‬AD7682)/8ཚ‫(ڢ‬AD7689)‫ܠ‬ୟްᆩഗ ! ੗჋ስ๼෇ ! ‫ڇ‬टႠ‫܋ڇ‬๼෇ ! ֶ‫ݴ‬๼෇)๑ᆩ֖੊‫*ں‬ ! ࿁ມटႠ๼෇ ཾུ໏୲ǖ250 kSPS INLǖ‫ۆ‬႙ኵ±0.4 LSBLjፌ‫ٷ‬ኵ±1.5 LSB)±23 ppmईFSR* ‫ۯ‬ༀ‫ྷݔ‬ǖ93.8 dB SINADǖ92.5 dB (20 kHz) THDǖ−100 dB(20 kHz) ఇె๼෇‫ྷݔ‬ǖ0 V዁VREFLjVREF੗‫ٳ‬VDD ‫ܠ‬ዖएጚᇸૌ႙ ! ాև੗჋ስ‫ڦ‬2.5 Vई4.096 Vएጚᇸ ! ྔև࣐؋एጚᇸ)੗‫ٳ‬4.096 V* ! ྔևएጚᇸ)੗‫ٳ‬VDD* ాև࿒‫ߌد܈‬ഗ(TEMP) ཚ‫ڢ‬ႾଚഗLj੗჋ስ‫ڦ‬1ट‫୳ۅ‬հഗLj‫ݏ‬஬ኸ๖ഗ ࿮ୁ຤၍ჽ‫׿‬LjSARॐࠓ ‫ۉڇ‬ᇸ߾ፕǖ2.3 V዁5.5 VLjஇडথ੨‫ۉ‬უǖ1.8 V዁5.5 V ‫ز‬ႜথ੨Ljग़ඹSPIĂMICROWIREĂQSPIࢅDSP ࠀࡼ 3.5 mW(2.5 V/200 kSPS) 12.5 mW(5 V/250 kSPS) ‫ځ‬ऐ‫ୁۉ‬ǖ50 nA ༵ࠃ‫ׯگ‬Ԩ‫ڪ‬पׂ೗ 20ᆅগ4 mm × 4 mm LFCSP‫ހ‬ጎ 0.5V TO VDD – 0.5V 0.1μF GND ཮2/! ՗1. ‫ܠ‬ཚ‫ڢ‬14/16࿋PulSAR® ADC ૌ႙ 14-Bit 16-Bit 16-Bit ཚ‫ڢ‬ຕ 8 4 8 250 kSPS AD7949 AD7682 AD7689 500 kSPS AD7699 ADCൻ‫ۯ‬ഗ ADA4841-x ADA4841-x ADA4841-x ߁ຎ! AD7682/AD7689๟4/8ཚ‫ڢ‬Ă16࿋Ă‫ࢁۉ‬ም‫ݴ‬ದደْ԰ৎस ٪ഗ(SAR)႙ఇຕገ࣑ഗ(ADC)Lj֑ᆩ‫ۉڇ‬ᇸVDDࠃ‫ۉ‬ă AD7682/AD7689ᆛᆶ‫ܠ‬ཚ‫ڢ‬Ă‫ࡼࠀگ‬ຕ਍֑णဣཥ໯Ⴔ‫ڦ‬ ໯ᆶፇ‫ׯ‬և‫ݴ‬LjԈઔǖ࿮฿ஓ‫ڦ‬ኈ16࿋SAR ADCǗᆩᇀॽ ๼෇ದዃྺ‫܋ڇ‬๼෇)๑ᆩईփ๑ᆩ֖੊‫*ں‬Ăֶ‫ݴ‬๼෇ई ມटႠ๼෇‫ڦ‬4ཚ‫(ڢ‬AD7682)ई8ཚ‫(ڢ‬AD7689)‫زگ‬ඡ‫ܠ‬ୟ ްᆩഗǗాև‫گ‬೏ᅎएጚᇸ)੗ᅜ჋ስ2.5 Vई4.096 V*ࢅ࣐ ؋ഗǗ࿒‫ߌد܈‬ഗǗ੗჋ስ‫ڇڦ‬ट‫୳ۅ‬հഗǗᅜत‫ܠړ‬ཚ ‫ڢ‬ᅈْ૶Ⴤ֑ᄣ้‫׉ݥ‬ᆶᆩ‫ڦ‬Ⴞଚഗă AD7682/AD7689๑ᆩ०‫ڦڇ‬SPIথ੨ํ၄ದዃस٪ഗ‫ڦ‬ႀ ෇ࢅገ࣑঳ࡕ‫ڦ‬থ๭ăSPIথ੨๑ᆩ‫ۉڦ܀ڇ‬ᇸ(VIO)Lj໲ ԥยۨྺዷऐஇड‫ۉ‬ೝăࠀࡼᇑཾུ໏୲‫ׯ‬ኟԲă AD7682/AD7689֑ᆩၭ႙20ᆅগLFCSP‫ހ‬ጎLj߾ፕ࿒‫ݔ܈‬ ྷྺ−40°C዁+85°Că 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 ©2008–2009 Analog Devices, Inc. All rights reserved. ADIዐ࿔Ӳຕ਍๮֩๟ᆈ࿔Ӳຕ਍๮֩‫ڦ‬ᅳ࿔Lj৤൩ଌ঴‫݋‬ᅳዐ੗ీ٪ሞ‫ڦ‬ᇕჾፇኯई‫݋‬ᅳ‫ٱ‬ဃLjADIփ‫݋ܔ‬ᅳዐ٪ሞ‫ֶڦ‬ᅴईᆯׂُิ‫ٱڦ‬ဃ޶ሴăසႴඓණඪࢆَᇕ‫ڦ‬ጚඓႠLj൩֖੊ADI༵ࠃ ‫ڦ‬ፌႎᆈ࿔Ӳຕ਍๮֩ă AD7682/AD7689  ణ୤! ༬Ⴀ ................................................................................................... 1 ! एጚ‫ۉ‬უ๼‫؜‬/๼෇ ............................................................ 20 ᆌᆩ ................................................................................................... 1 ! ‫ۉ‬ᇸ ........................................................................................ 22 ࠀీ઀཮ ........................................................................................... 1 ! ٗएጚᇸྺADCࠃ‫ ۉ‬........................................................ 22 ߁ຎ ................................................................................................... 1 ຕጴথ੨ ........................................................................................ 23 Ⴊ۩૦๏ ........................................................................................... 2 ! ገ࣑೺क़‫܁‬ൽ/ႀ෇Lj੺໏ዷऐ ....................................... 23 रຍࡀ߭ ........................................................................................... 3 ! ገ࣑ࢫ‫܁‬ൽ/ႀ෇Ljඪࢆ໏‫ڦ܈‬ዷऐ .............................. 23 ! ้Ⴞࡀ߭ .................................................................................. 6 ! ገ࣑ඇ‫܁ײ‬ൽ/ႀ෇Ljඪࢆ໏‫ڦ܈‬ዷऐ .......................... 23 ਨ‫ܔ‬ፌ‫ۨܮٷ‬ኵ ............................................................................. 8 ! ದዃस٪ഗLjCFG .............................................................. 23 ESDয়ߢ .................................................................................. 8 ! ࿮‫ݏ‬஬ኸ๖ഗ‫ڦ‬ཚᆩ้Ⴞ ................................................ 25 ᆅগದዃࢅࠀీ௮ຎ ..................................................................... 9 ! ࡤ‫ݏ‬஬ኸ๖ഗ‫ڦ‬ཚᆩ้Ⴞ ................................................ 26 ‫ۆ‬႙߾ፕ༬Ⴀ ................................................................................ 11 ! ཚ‫ڢ‬Ⴞଚഗ ........................................................................... 27 ຍᇕ ................................................................................................. 14 ! ࿮‫ݏ‬஬ኸ๖ഗ‫ڦ‬ገ࣑ඇ‫܁ײ‬ൽ/ႀ෇ .............................. 28 ߾ፕᇱ૙ ....................................................................................... 15 ! ࡤ‫ݏ‬஬ኸ๖ഗ‫ڦ‬ገ࣑ඇ‫܁ײ‬ൽ/ႀ෇ .............................. 29 ! ߁ຎ ........................................................................................ 15 ᆌᆩႷኪ ........................................................................................ 30 ! ገ࣑ഗ֡ፕ ........................................................................... 15 ! ! ‫ࡧڿد‬ຕ ................................................................................ 16 AD7682/AD7689Ⴀీೠࠚ ................................................. 30 ! ‫ۆ‬႙૶থ཮ ............................................................................ 17 ྔႚ؅٫ ........................................................................................ 31 ! ఇె๼෇ ................................................................................ 18 ! ! ൻ‫ٷݣۯ‬ഗ჋ስ ................................................................... 20 քਆք၍ ............................................................................... 30 ۩ࠔኸళ ................................................................................ 31 Ⴊ۩૦๏! 2009౎6ሆ—Ⴊ۩ӲA዁Ⴊ۩ӲB ߸߀՗6 ................................................................... ሺे཮31ǗዘႎಇႾ .................................................................. 20 8 ߸߀“ྔևएጚ‫ۉ‬უᇸࢅాև࣐؋ഗ”և‫ݴ‬त“ྔևएጚ‫ۉ‬უ ߸߀཮37 ................................................................... 25 ᇸ”և‫ ݴ‬........................................................................................... 21 ߸߀཮38 ................................................................... 26 ሺे཮32ࢅ཮33 ............................................................................ 21 2009౎3ሆ—Ⴊ۩Ӳ0዁Ⴊ۩ӲA ߸߀“‫ۉ‬ᇸ”և‫ ݴ‬............................................................................ 22 ߸߀“༬Ⴀ”և‫ݴ‬Ă“ᆌᆩ”և‫཮ࢅݴ‬1 .......................................... 1 ߸߀“ຕጴথ੨”և‫ݴ‬Ă“ገ࣑ࢫ‫܁‬ൽ/ႀ෇Ljඪࢆ໏‫ڦ܈‬ዷ ሺे՗2ǗዘႎಇႾ ...................................................................... 3 ऐ”և‫“ࢅݴ‬ದዃस٪ഗLjCFG”և‫ ݴ‬....................................... 23 VREF߸߀ྺVREF ............................................................................. 4 ߸߀՗10 ......................................................................................... 24 ߸߀՗3 ............................................................................................ 5 ሺे“࿮‫ݏ‬஬ኸ๖ഗ‫ڦ‬ཚᆩ้Ⴞ”և‫཮ࢅݴ‬37 ...................... 25 ߸߀՗4 ........................................................................................... 6 ሺे“ࡤ‫ݏ‬஬ኸ๖ഗ‫ڦ‬ཚᆩ้Ⴞ”և‫཮ࢅݴ‬38 ....................... 26 ߸߀՗5 ............................................................................................ 7 ሺे“ཚ‫ڢ‬Ⴞଚഗ”և‫཮ࢅݴ‬39 ................................................. 27 ෸‫أ‬՗6‫ڦ‬࿂ጀ2 ............................................................................. 8 ߸ ߀ “࿮ ‫ ݏ‬஬ ኸ ๖ ഗ ‫ ڦ‬ገ ࣑ ඇ ‫ ܁ ײ‬ൽ /ႀ ෇ ” ߸߀཮4Ă཮5ࢅ՗7 ....................................................................... 9 և‫཮ࢅݴ‬41 ................................................................................... 28 ߸߀཮6Ă཮9ࢅ཮10 ................................................................... 11 ߸ ߀ “ࡤ ࿮ ‫ ݏ‬஬ ኸ ๖ ഗ ‫ ڦ‬ገ ࣑ ඇ ‫ ܁ ײ‬ൽ /ႀ ෇ ” ߸߀཮22 ......................................................................................... 13 և‫཮ࢅݴ‬43 ................................................................................... 29 ߸߀“߁ຎ”և‫“ࢅݴ‬ገ࣑ഗ֡ፕ”և‫ ݴ‬...................................... 15 ߸߀“AD7682/AD7689Ⴀీೠࠚ”և‫ ݴ‬..................................... 30 ߸߀՗8 ........................................................................................... 16 “ྔႚ؅٫”և‫ݴ‬ዐሺे஋୞ࡰಎጀ๥ ..................................... 31 ߸߀཮26ࢅ཮27 ............................................................................ 17 ߸߀۩ࠔኸళ ................................................................................ 31 ߸߀“ມटႠ‫ۉڇ‬ᇸ”և‫“ࢅݴ‬ఇె๼෇”և‫ ݴ‬........................ 18 ߸߀“ాևएጚ‫ۉ‬უᇸ/࿒‫ߌد܈‬ഗ”և‫ ݴ‬............................... 20 2008౎5ሆ—Ⴊ۩Ӳ0ǖ‫؛‬๔Ӳ Rev. B | Page 2 of 32 AD7682/AD7689  रຍࡀ߭! ‫ݥأ‬ଷᆶຫ௽LjVDD = 2.3 V዁5.5 VLjVIO = 1.8 V዁VDDLjVREF = VDDLj໯ᆶࡀ߭਩၎‫ܔ‬ᇀTMIN዁TMAXܸჾă ՗2 ֖ຕ! RESOLUTION ఇె๼෇ ! ‫ۉ‬უ‫ྷݔ‬ ! ਨ‫ܔ‬๼෇‫ۉ‬უ ཉॲ0ጀ๥! ፌၭኵ! 16 ‫ڇ‬टႠఇ๕ ມटႠఇ๕ 0 −VREF/2 −0.1 ኟ๼෇Lj‫ڇ‬टႠࢅ ມटႠఇ๕ −0.1 ޶ईCOM๼෇,‫ڇ‬टႠఇ๕ ޶ईCOM๼෇,ມटႠఇ๕ VREF/2 − 0.1 ! ఇె๼෇CMRR 25°C้୑‫ୁۉ‬ ! ๼෇ፆੇ1 ཾུ໏୲ ! ገ࣑໏୲ ! ! ඇ‫੻ټ‬2 ¼‫੻ټ‬2 ! ຨༀၚᆌ ৛‫܈‬ ࿮฿ஓ ओ‫ݥݴ‬၍Ⴀဃֶ ྲ‫ݥݴ‬၍Ⴀဃֶ ሂദሯำ ሺᅮဃֶ4 ሺᅮဃֶ೅ದ ሺᅮဃֶ࿒೏ ฿ۙဃֶ4 ฿ۙဃֶ೅ದ ฿ۙဃֶ࿒೏ ‫ۉ‬ᇸଳ௺‫܈‬ ঍ୁ৛‫܈‬5 ‫ۯ‬ༀ‫ྷݔ‬ ႑ሯԲ SINAD fIN= 250 kHz ֑ण঩܎ VDD = 4.5 V ዁ 5.5 V VDD = 2.3 V ዁ 4.5 V VDD = 4.5 V ዁ 5.5 V VDD = 2.3 V ዁ 4.5 V AD7689A ‫ۆ‬႙ኵ! ፌ‫ٷ‬ኵ VREF/2 0 0 0 0 0 −VREF/2 −0.1 +VREF +VREF/2 VREF + 0.1 V +0.1 −0.1 +0.1 V VREF/2 + 0.1 VREF/2 − 0. 1 VREF/2 + 0.1 V +4 16 −1.5 −1 +32 −8 −4 +32 −8 ±2 ±1 −32 ±32 ±2 ±1 ±1.5 V dB nA 250 200 62.5 50 1.8 kSPS kSPS kSPS kSPS 14.5 0.6 −32 fIN = 20 kHz, VREF = 5 V fIN = 20 kHz, VREF = 4.096 V, ాև REF fIN = 20 kHz, VREF = 2.5 V, ాև REF fIN = 20 kHz, VREF = 5 V fIN = 20 kHz, VREF = 5 V, −60 dB ๼෇ fIN = 20 kHz, VREF = 4.096 V ాև　REF fIN = 20 kHz, VREF = 2.5 V ాև REF 0 0 0 0 14.5 REF = VDD = 5 V VDD = 5 V ± 5% VREF/2 68 1 250 200 62.5 50 1.8 15 −4 ‫ڇ‬࿋ Bits +VREF +VREF/2 VREF + 0.1 68 1 ஢ଉ‫ײ‬঩ሂLjඇ‫!੻ټ‬ ஢ଉ‫ײ‬঩ሂLj¼‫!੻ټ‬ VDD = 4.5 V ዁ 5.5 V VDD = 2.3 V ዁ 4.5 V AD7682B/AD7689B ፌၭኵ! ‫ۆ‬႙ኵ! ፌ‫ٷ‬ኵ 16 −4 ±0.4 ±0.25 0.5 ±1 ±0.5 ±1 ±1 ±5 ±0.5 ±1 ±1.5 +1.5 +1.5 +8 +4 +8 +4 Bits LSB 3 LSB LSB LSB LSB ppm/°C LSB LSB LSB ppm/°C LSB 90.5 90 89 92.5 91 93.8 93.5 92.3 dB 6 dB dB 86 87.5 88.8 dB 89 30.5 91 92.5 33.5 dB dB 88 90 91 dB 86 87 88.4 dB Rev. B | Page 3 of 32 AD7682/AD7689 ֖ຕ! 2 3 4 5 6 AD7682B/AD7689B ፌၭኵ! ‫ۆ‬႙ኵ! ፌ‫ٷ‬ኵ −100 ጺၿհ฿ኈ(THD) ࿮ሗො‫ۯ‬ༀ‫ྷݔ‬ fIN = 20 kHz 105 110 dB fIN = 100 kHz −120 −125 dB 1.7 0.425 2.5 1.7 0.425 2.5 MHz MHz ns ֑ᄣ‫ۯ‬ༀႠీ -3 dB๼෇‫੻ټ‬ ତ‫ڢ‬ ඇ‫੻ټ‬ ¼‫੻ټ‬ ! ੥০ჽ‫׿‬ VDD = 5 V ፌၭኵ! AD7689A ‫ۆ‬႙ኵ! ፌ‫ٷ‬ኵ −97 ཉॲ0ጀ๥! fIN = 20 kHz ཚ‫ڢ‬क़‫ز‬ඡ 1  ֖९“ఇె๼෇”և‫ݴ‬ ‫੻ټ‬ሞದዃस٪ഗዐยዃă LSB՗๖ፌ‫گ‬ᆶၳ࿋ă5 V๼෇‫้ྷݔ‬Lj1 LSB = 76.3 μVă ֖९“ຍᇕ”և‫ݴ‬ăኄၵࡀ߭Ԉઔኝ߲࿒‫ڦాྷݔ܈‬հ‫ۯ‬Lj‫ڍ‬փԈઔྔևएጚ‫ۉ‬უ‫ڦ‬ဃֶࠋ၅ă ‫ݥأ‬ଷᆶຫ௽LjVDD = 5 Vă ‫ݥأ‬ଷᆶຫ௽Lj໯ᆶᆩ‫ݴ‬Ԟ(dB)՗๖‫߭ࡀڦ‬਩֖੊஢ଉ‫ײ‬๼෇FSRLjժᆩ‫گ‬ᇀ஢ଉ‫ײ‬0.5 dB‫ڦ‬๼෇႑ࡽ৊ႜ֪๬ă Rev. B | Page 4 of 32 ‫ڇ‬࿋ dB AD7682/AD7689  ‫ݥأ‬ଷᆶຫ௽LjVDD = 2.3 V዁5.5 VLjVIO = 1.8 V዁VDDLjVREF = VDDLj໯ᆶࡀ߭਩၎‫ܔ‬ᇀTMIN዁TMAXܸჾă ՗3 ֖ຕ! ాևएጚ‫ۉ‬უᇸ REF๼‫ۉ؜‬უ REFIN๼‫ۉ؜‬უ1 ! ! ! ! REF๼‫ୁۉ؜‬ ࿒‫܈‬೏ᅎ ๼෇‫ۉ‬უۙኝ୲ ‫׊‬೺೏ᅎ ਸഔॺ૬้क़ ྔևएጚ‫ۉ‬უᇸ ! ‫ۉ‬უ‫ྷݔ‬ ! ୑‫ୁۉ‬2 ࿒‫ߌد܈‬ഗ ๼‫ۉ؜‬უ3 ࿒‫܈‬ଳ௺‫܈‬ ຕጴ๼෇ ! இड‫ۉ‬ೝ VIL VIH IIL IIH ຕጴ๼‫؜‬ ! ຕ਍߭๕4 ! ୁ຤၍ჽ‫׿‬5 VOL VOH ‫ۉ‬ᇸ VDD VIO ! ‫ځ‬ऐ‫ୁۉ‬6,7 ! ࠀࡼ ཉॲ0ጀ๥! ፌၭኵ! 2.5 V, @ 25°C 4.096 V, @ 25°C 2.5 V, @ 25°C 4.096 V, @ 25°C 2.490 4.086 VDD = 5 V ± 5% 1000 ၭ้! CREF = 10 μF REF ๼෇! REFIN ๼෇)࣐؋*! 250 kSPS, REF = 5 V ໯ᆶ႙ࡽ/‫ڪ‬प ‫ۆ‬႙ኵ ፌ‫ٷ‬ኵ 2.500 4.096 1.2 2.3 ±300 ±10 ±15 50 5 2.510 4.106 V V V V μA ppm/°C ppm/V ppm ms VDD + 0.3 VDD − 0.5 50 V V μA 283 1 mV mV/°C 0.5 0.5 @ 25°C −0.3 0.7 × VIO −1 −1 ISINK = +500 μA ISOURCE = −500 μA +0.3 × VIO VIO + 0.3 +1 +1 V V μA μA 0.4 V V 5.5 VDD + 0.3 V V nA μW mW mW mW nJ VIO − 0.3 2.3 1.8 ! ௅ْገ࣑‫ీڦ‬ଉ ‫ۨܮ‬Ⴀీ ‫ۨܮ‬Ⴀీ VDDࢅVIO = 5 VLj25°C VDD = 2.5 VLj100 SPSཾུ໏୲ VDD = 2.5 VLj200 kSPSཾུ໏୲ VDD = 5 VLj250 kSPSཾུ໏୲ VDD = 5 VLj250 kSPSཾུ໏୲Ljాևएጚᇸ VDD = 5V ࿒‫ྷݔ܈‬8 ‫ۨܮ‬Ⴀీ TMIN ዁ TMAX −40 ాև‫ټ‬ဤएጚ‫ۉ‬უᇸ‫ڦ‬๼‫؜‬ă ೝ਩‫ୁۉ‬Ljᇑཾུ໏୲‫ׯ‬ኟԲă 3 ాև๼‫ۉ؜‬უLj‫؜‬၄ሞጆᆩ‫ܠ‬ୟްᆩഗ๼෇ă 4 ‫ڇ‬टႠఇ๕ǖ‫ز‬ႜ16࿋኱থܾ৊዆ă ! ມटႠఇ๕ǖ‫ز‬ႜ16࿋ܾ৊዆ցஓă 5 ገ࣑ྜ‫ࢫׯ‬ገ࣑঳ࡕ૬न੗ᆩă 6 ߵ਍ႴᄲLj໯ᆶຕጴ๼෇ഽ዆থVIOईGNDă 7 ሞ֑ण঩܎ă 8 ߸੻࿒‫ྷݔ܈‬൩૴ဣADIࠅິၨ๳‫پ‬՗ă 1 2 Rev. B | Page 5 of 32 ‫ڇ‬࿋! 50 1.7 3.5 12.5 15.5 60 18 21 +85 °C AD7682/AD7689  ้Ⴞࡀ߭ ‫ݥأ‬ଷᆶຫ௽LjVDD = 4.5 V዁5.5 VLjVIO = 1.8 V዁VDDLj໯ᆶࡀ߭਩၎‫ܔ‬ᇀTMIN዁TMAXܸჾă ՗4. ֖ຕ1 ገ้࣑क़ǖCNVฉืᄂ዁ຕ਍੗ᆩ ֑ण้क़ ገ࣑क़้߰क़ ገ࣑೺क़ຕ਍ႀ෇/‫܁‬ൽ CNVஞ؋੻‫܈‬ SCKዜ೺ SCK‫ۉگ‬ೝ้क़ SCKߛ‫ۉ‬ೝ้क़ SCKူইᄂ዁ຕ਍ධ඗ᆶၳ SCKူইᄂ዁ຕ਍ᆶၳჽ‫้׿‬क़ VIOߛᇀ2.7 V VIOߛᇀ2.3 V VIOߛᇀ1.8 V CNV‫ۉگ‬ೝ዁SDO D15 MSBᆶၳ VIOߛᇀ2.7 V VIOߛᇀ2.3 V VIOߛᇀ1.8 V CNVߛ‫ۉ‬ೝईፌࢫᅃ߲SCKူইᄂ዁SDOߛፆༀ CNV‫ۉگ‬ೝ዁SCKฉืᄂ SCKฉืᄂ዁DINᆶၳยዃ้क़ SCKฉืᄂ዁DINᆶၳԍ‫้׼‬क़ 1 ‫ࡽޙ‬ tCONV tACQ tCYC tDATA tCNVH tSCK tSCKL tSCKH tHSDO tDSDO ፌၭኵ ‫ۆ‬႙ኵ ፌ‫ٷ‬ኵ 2.2 1.8 4.0 1.2 10 tDSDO + 2 11 11 4 ‫ڇ‬࿋ μs μs μs μs ns ns ns ns ns 18 23 28 ns ns ns 18 22 25 32 ns ns ns ns ns ns ns tEN tDIS tCLSCK tSDIN tHDIN ޶ሜཉॲ֖९཮2ࢅ཮3ă Rev. B | Page 6 of 32 10 5 5 AD7682/AD7689  ‫ݥأ‬ଷᆶຫ௽LjVDD = 2.3 V዁4.5 VLjVIO = 1.8 V዁VDDLj໯ᆶࡀ߭਩၎‫ܔ‬ᇀTMIN዁TMAXܸჾă Table 5. ֖ຕ1 ገ้࣑क़ǖCNVฉืᄂ዁ຕ਍੗ᆩ ֑ण้क़ ገ࣑क़้߰क़ ገ࣑೺क़ຕ਍ႀ෇/‫܁‬ൽ CNVஞ؋੻‫܈‬ SCKዜ೺ SCK‫ۉگ‬ೝ้क़ SCKߛ‫ۉ‬ೝ้क़ SCKူইᄂ዁ຕ਍ධ඗ᆶၳ SCKူইᄂ዁ຕ਍ᆶၳჽ‫้׿‬क़ VIOߛᇀ3 V VIOߛᇀ2.7 V VIOߛᇀ2.3 V VIOߛᇀ1.8 V CNV‫ۉگ‬ೝ዁SDO D15 MSBᆶၳ VIOߛᇀ3 V VIOߛᇀ2.7 V VIOߛᇀ2.3 V VIOߛᇀ1.8 V CNVߛ‫ۉ‬ೝईፌࢫᅃ߲SCKူইᄂ዁SDOߛፆༀ CNV‫ۉگ‬ೝ዁SCKฉืᄂ SCKฉืᄂ዁DINᆶၳยዃ้क़ SCKฉืᄂ዁DINᆶၳԍ‫้׼‬क़ ፌၭኵ ፌ‫ٷ‬ኵ 3.2 1.2 10 tDSDO + 2 12 12 5 ‫ڇ‬࿋ μs μs μs μs ns ns ns ns ns 24 30 38 48 ns ns ns ns 21 27 35 45 50 ns ns ns ns ns ns ns ns tEN tDIS tCLSCK tSDIN tHDIN 10 5 5 ޶ሜཉॲ֖९཮2ࢅ཮3ă 500μA IOL 1.4V TO SDO CL 50pF 500μA IOH ཮2.ຕጴথ੨้Ⴞ‫޶ڦ‬ሜ‫ۉ‬ୟ 70% VIO 30% VIO tDELAY 2V OR VIO – 0.5V1 2V OR VIO – 0.5V1 0.8V OR 0.5V2 0.8V OR 0.5V2 2V IF VIO ABOVE 2.5V, VIO – 0.5V IF VIO BELOW 2.5V. 0.8V IF VIO ABOVE 2.5V, 0.5V IF VIO BELOW 2.5V. ཮3.้Ⴞ‫ۉڦ‬ೝ Rev. B | Page 7 of 32 07353-003 tDELAY 1 2 ‫ۆ‬႙ኵ 1.8 5 07353-002 1 ‫ࡽޙ‬ tCONV tACQ tCYC tDATA tCNVH tSCK tSCKL tSCKH tHSDO tDSDO AD7682/AD7689  ਨ‫ܔ‬ፌ‫ۨܮٷ‬ኵ! ՗6 ֖ຕ ఇె๼෇ INx1ĂCOM1 REFĂREFIN ‫ۉ‬ᇸ‫ۉ‬უ VDDĂVIO዁GND VIO዁VDD DINĂCNVĂSCK዁GND SDO዁GND ٪‫ئ‬࿒‫ྷݔ܈‬ ঳࿒ θJAඤፆ(LFCSP) θJCඤፆ(LFCSP) 1 ‫ۨܮ‬ኵ GND − 0.3 V ዁ VDD + 0.3 V ई VDD ± 130 mA GND − 0.3 V ዁ VDD + 0.3 V −0.3 V ዁ +7 V −0.3 V ዁ VDD + 0.3 V −0.3 V ዁ VIO + 0.3 V −0.3 V ዁ VIO + 0.3 V −65°C ዁ +150°C 150°C 47.6°C/W 4.4°C/W ጀᅪLj‫؜ג‬ฉຎਨ‫ܔ‬ፌ‫ۨܮٷ‬ኵ੗ీࣷ‫ڞ‬ዂഗॲᆦ৳Ⴀ໦ ࣋ăኄၵኻ๟ፌ‫ۨܮٷ‬ኵLjփ՗๖ሞኄၵཉॲူईኁሞඪ ࢆഄ໲‫؜ג‬Ԩरຍࡀ߭֡ፕև‫ݴ‬໯๖ࡀ߭‫ڦ‬ཉॲူLjഗॲ ీࠕኟ‫߾׉‬ፕă‫׊‬೺ሞਨ‫ܔ‬ፌ‫ۨܮٷ‬ኵཉॲူ߾ፕࣷᆖၚ ഗॲ‫ڦ‬੗੍Ⴀă ESDয়ߢ ESD(ৢ‫ߌ௺)ۉݣۉ‬ഗॲă ‫ۉټ‬ഗॲࢅ‫ۉ‬ୟӱ੗ీࣷሞுᆶִਥ‫ڦ‬൧઄ူ‫ݣ‬ ‫ۉ‬ă৑࠶Ԩׂ೗ਏᆶጆ૧ईጆᆶԍࢺ‫ۉ‬ୟLj‫ڍ‬ሞ ᇜ‫ీߛڟ‬ଉESD้Ljഗॲ੗ీࣷ໦࣋ăᅺُLjᆌ ‫֑ړ‬ൽ๢‫ڦړ‬ESD‫ٯݔݞ‬แLjᅜՆ௨ഗॲႠీူ ইईࠀీෟ฿ă ֖९Đఇె๼෇đև‫ݴ‬ Rev. B | Page 8 of 32 AD7682/AD7689  20 19 18 17 16 20 19 18 17 16 VDD IN3 IN2 IN1 IN0 VDD NC IN1 NC IN0 ᆅগದዃࢅࠀీ௮ຎ! PIN 1 INDICATOR AD7682 TOP VIEW (Not to Scale) 15 VIO 14 SDO 13 SCK 12 DIN 11 CNV VDD REF REFIN GND GND PIN 1 INDICATOR AD7689 VIO SDO SCK DIN CNV IN4 6 IN5 7 IN6 8 IN7 9 COM 10 TOP VIEW (Not to Scale) 15 14 13 12 11 NOTES 1. THE EXPOSED PAD IS NOT CONNECTED INTERNALLY. FOR INCREASED RELIABILITY OF THE SOLDER JOINTS, IT IS RECOMMENDED THAT THE PAD BE SOLDERED TO THE SYSTEM GROUND PLANE. 07353-004 NOTES 1. NC = NO CONNECT. 2. THE EXPOSED PAD IS NOT CONNECTED INTERNALLY. FOR INCREASED RELIABILITY OF THE SOLDER JOINTS, IT IS RECOMMENDED THAT THE PAD BE SOLDERED TO THE SYSTEM GROUND PLANE. 1 2 3 4 5 ཮4. AD7682ᆅগದዃ 07353-005 1 2 3 4 5 NC 6 IN2 7 NC 8 IN3 9 COM 10 VDD REF REFIN GND GND ཮5. AD7689ᆅগದዃ ՗7. ᆅগࠀీ௮ຎ ᆅগ Պࡽ 1, 20 AD7682 ᆅগఁ‫׬‬ VDD AD7689 ᆅগఁ‫׬‬ VDD ૌ႙1 P ௮ຎ ‫ۉ‬ᇸă๑ᆩྔևएጚᇸժཚࡗ10 μFࢅ100 nF‫ۉ‬ඹඁ้᳘LjՔ‫׬‬ኵྺ2.5 V዁5.5 Vă ๑ᆩాևएጚᇸ༵ࠃ2.5 V๼‫؜‬Ljፌၭኵᆌྺ3.0 Vă ๑ᆩాևएጚᇸ༵ࠃ4.096 V๼‫؜‬Ljፌၭኵᆌྺ4.6 Vă 2 REF REF AI/O एጚ‫ۉ‬უ๼෇/๼‫؜‬ă֖९“एጚ‫ۉ‬უ๼‫؜‬/๼෇”և‫ݴ‬ă ๑ీాևएጚᇸ้Ljُᆅগׂิᅃ߲2.5 Vई4.096 V੗჋‫ڦ‬ဣཥएጚ‫ۉ‬უă্ᆩాևए ጚᇸժ๑ీ࣐؋ഗ้LjREFׂิREFINᆅগ(ፌ‫ٷ‬ኵVDD − 0.5 V)ฉ‫ۉڦ‬უ‫ڦ‬ᅃ߲࣐؋ႚ๕ ‫ۉ‬უLj๢ᆩᇀ๑ᆩ‫ׯگ‬ԨĂ‫ࡼࠀگ‬एጚᇸ‫ڦ‬൧઄ă ྺ߀฀೏ᅎႠీLjᆌॽᅃ߲৛௢एጚᇸ૶থ‫ڟ‬REF(0.5 V዁VDD)ă ࿮ஃ๑ᆩࢆዖएጚᇸLjُᆅগ‫ۼ‬Ⴔᄲཚࡗᅃ߲10 μF‫ۉ‬ඹඁ᳘Ljඁ᳘‫ۉ‬ඹᆌ৑੗ీ੍ৎ REFă֖९“एጚ‫ۉ‬უᇸඁ᳘”և‫ݴ‬ă 3 REFIN REFIN AI/O ాևएጚ‫ۉ‬უ๼‫؜‬/एጚ‫ۉ‬უ࣐؋๼෇ă֖९“एጚ‫ۉ‬უ๼‫؜‬/๼෇”և‫ݴ‬ă ๑ᆩాևएጚᇸ้Ljాև٪ሞ࿮࣐؋एጚ‫ۉ‬უLjժႴᄲཚࡗᅃ߲0.1 μF‫ۉ‬ඹඁ᳘ă ๑ీాևएጚ‫ۉ‬უ࣐؋ഗ้Ljแेᅃ߲0.5 V዁(VDD − 0.5 V)‫ڦ‬एጚᇸLjঢ়ࡗ࣐؋ࢫ༵ ࠃߴREFᆅগLj९REFᆅগ௮ຎă 4, 5 6 GND NC GND IN4 P AI 7 IN2 IN5 AI 8 NC IN6 AI 9 IN3 IN7 AI 10 COM COM AI ‫ۉ‬ᇸ‫ں‬ă AD7682ǖփ૶থă AD7689ǖఇె๼෇ཚ‫ڢ‬4ă AD7682ǖఇె๼෇ཚ‫ڢ‬2ă AD7689ǖఇె๼෇ཚ‫ڢ‬5ă AD7682ǖփ૶থă AD7689ǖఇె๼෇ཚ‫ڢ‬6ă AD7682ǖఇె๼෇ཚ‫ڢ‬3ă AD7689ǖఇె๼෇ཚ‫ڢ‬7ă ࠌఇཚ‫ڢ‬๼෇ă໯ᆶ๼෇ཚ‫(ڢ‬IN[7:0])‫ۼ‬੗ᅜ֖੊ᅃ߲0 VईVREF/2 V‫ࠌڦ‬ఇ‫ۅ‬ă 11 CNV CNV DI 12 DIN DIN DI 13 SCK SCK DI ገ࣑๼෇ăሞฉืᄂLjCNVഔ‫ۯ‬ገ࣑ăገ࣑೺क़LjසࡕCNVԍ‫ۉگ׼‬ೝLjሶ‫ݏ‬஬ኸ๖ഗ ๑ీă ຕ਍๼෇ăُ๼෇ᆩᇀႀ෇14࿋ದዃस٪ഗă੗ᅜሞገ࣑೺क़ࢅገ࣑ࢫႀ෇ದዃस٪ ഗă ‫ز‬ႜຕ਍้ዓ๼෇ăُ๼෇ᆩᇀྺᅜMSBᆫံ‫ݛ‬๕ሞSDOฉ๼‫؜‬ຕ਍ᅜतሞDINฉ๼෇ ຕ਍ઠ༵ࠃ้ዓă Rev. B | Page 9 of 32 AD7682/AD7689  ᆅগ Պࡽ 14 AD7682 ᆅগఁ‫׬‬ SDO AD7689 ᆅগఁ‫׬‬ SDO ૌ႙1 DO ௮ຎ ‫ز‬ႜຕ਍๼‫؜‬ăገ࣑঳ࡕཚࡗُᆅগ๼‫؜‬LjᇑSCKཞօă‫ڇ‬टႠఇ๕ူLjገ࣑঳ࡕྺ ኱থܾ৊዆ǗມटႠఇ๕ူLjገ࣑঳ࡕྺܾ৊዆ցஓă 15 VIO VIO P 16 17 IN0 NC IN0 IN1 AI AI 18 IN1 IN2 AI 19 NC IN3 AI 21 (EPAD) Exposed Pad (EPAD) Exposed Pad (EPAD) NC ๼෇/๼‫؜‬থ੨ຕጴ‫ۉ‬ᇸăُᆅগ‫ڦ‬Ք‫ۉ׬‬ᇸᇑዷऐথ੨‫ۉ‬ᇸ၎ཞ(1.8 VĂ2.5 VĂ3 Vई 5 V)ă ఇె๼෇ཚ‫ڢ‬0ă AD7682ǖփ૶থă AD7689ǖఇె๼෇ཚ‫ڢ‬1ă AD7682ǖఇె๼෇ཚ‫ڢ‬1ă AD7689ǖఇె๼෇ཚ‫ڢ‬2ă AD7682ǖփ૶থă AD7689ǖఇె๼෇ཚ‫ڢ‬3ă ஋୞ࡰಎփሞాև૶থăྺ༵ߛࡰথ‫ڦ‬੗੍ႠLjॺᅱॽࡰಎࡰথ‫ڟ‬ဣཥ‫֫ں‬ă 1 AI = ఇె๼෇LjAI/O = ఇె๼෇/๼‫؜‬LjDI = ຕጴ๼෇LjDO = ຕጴ๼‫؜‬LjP = ‫ۉ‬ᇸLjNC = փሞాև૶থă Rev. B | Page 10 of 32 AD7682/AD7689  ‫ۆ‬႙߾ፕ༬Ⴀ! ‫ݥأ‬ଷᆶຫ௽LjVDD = 2.5 V዁5.5 VLjVREF = 2.5 V዁5 VLjVIO = 2.3 V዁VDDă 1.5 1.5 INL MAX = +0.34 LSB INL MIN = –0.44 LSB 1.0 DNL MAX = +0.20 LSB DNL MIN = –0.22 LSB 1.0 0.5 DNL (LSB) INL (LSB) 0.5 0 0 –0.5 0 16,384 32,768 49,152 65,536 CODES 07353-009 –1.5 –1.0 0 16,384 32,768 49,152 ཮6. ओ‫ݥݴ‬၍Ⴀᇑஓ‫࠲ڦ‬ဣLjVREF = VDD = 5 V ཮9. ྲ‫ݥݴ‬၍Ⴀᇑஓ‫࠲ڦ‬ဣLjVREF = VDD = 5 V 200k 160k σ= 0.50 VREF = VDD = 5V 180k 65,536 CODES 07353-006 –0.5 –1.0 σ= 0.78 VREF = VDD = 2.5V 135,207 140k 160k 100k 120k COUNTS COUNTS 120k 135,326 124,689 140k 100k 80k 80k 63,257 60k 51,778 60k 40k 20k 20k 0 487 619 0 7FFA 7FFB 7FFC 7FFD 7FFE 7FFF 8000 0 0 8001 8002 CODE IN HEX 6649 1 0 07353-007 0 0 7FFB 7FFC 7FFD 7FFE 7FFF 8000 60 1 8002 8003 ཮10. ᅃ߲኱ୁ๼෇‫ڦ‬ዹጒ཮)ஓዐ႐* 0 0 VREF = VDD = 5V fS= 250kSPS fIN = 19.9kHz SNR = 92.9dB SINAD = 92.4dB THD = –102dB SFDR = 103dB SECOND HARMONIC = –111dB THIRD HARMONIC = –104dB –40 –60 –80 VREF = VDD = 2.5V fs= 200kSPS fIN = 19.9kHz SNR = 88.0dB SINAD = 87.0dB THD = –89dB SFDR = 89dB SECOND HARMONIC = –105dB THIRD HARMONIC = –90dB –20 AMPLITUDE (dB of Full-Scale) –20 –100 –120 –140 –40 –60 –80 –100 –120 –140 –160 0 25 50 75 100 FREQUENCY (kHz) 125 –180 0 25 50 75 FREQUENCY (kHz) ཮11. 20 kHz FFTLjVREF = VDD = 2.5 V ཮8. 20 kHz FFTLjVREF = VDD = 5 V Rev. B | Page 11 of 32 100 07353-011 –160 07353-008 AMPLITUDE (dB of Full-Scale) 4090 8001 CODE IN HEX ཮7. ᅃ߲኱ୁ๼෇‫ڦ‬ዹጒ཮(ஓዐ႐) –180 78 07353-010 40k AD7682/AD7689  95 95 90 90 85 85 80 75 60 0 50 VREF VREF VREF VREF 70 65 100 150 200 FREQUENCY (kHz) 60 0 50 17.0 SNR @ 2kHz SINAD @ 2kHz SNR @ 20kHz SINAD @ 20kHz ENOB @ 2kHz ENOB @ 20kHz 16.5 200 130 –60 125 –65 120 16.0 15.5 88 15.0 86 14.5 –75 110 SFDR (dB) 90 –70 SFDR = 2kHz 115 ENOB (Bits) SNR, SINAD (dB) 150 ཮15. SINADᇑೕ୲‫࠲ڦ‬ဣ 96 92 100 FREQUENCY (kHz) ཮12. SNRᇑೕ୲‫࠲ڦ‬ဣ 94 = VDD = 5V, –0.5dB = VDD = 5V, –10dB = VDD = 2.5V, –0.5dB = VDD = 2.5V, –10dB –80 105 –85 100 95 SFDR = 20kHz –90 THD = 20kHz –95 90 84 14.0 82 –100 85 –105 THD = 2kHz 80 13.5 –110 1.5 2.0 2.5 3.0 3.5 4.0 4.5 5.0 5.5 13.0 REFERENCE VOLTAGE (V) 07353-013 75 80 1.0 –115 70 1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5 5.0 –120 5.5 REFERENCE VOLTAGE (V) ཮13. SNRĂSINADࢅENOBᇑएጚ‫ۉ‬უ‫࠲ڦ‬ဣ ཮16. SFDRࢅTHDᇑएጚ‫ۉ‬უ‫࠲ڦ‬ဣ 96 –90 fIN = 20kHz 94 THD (dB) 65 75 07353-016 70 = VDD = 5V, –0.5dB = VDD = 5V, –10dB = VDD = 2.5V, –0.5dB = VDD = 2.5V, –10dB 07353-041 VREF VREF VREF VREF 80 07353-012 SINAD (dB) 100 SNR (dB) 100 fIN = 20kHz VREF = VDD = 5V –95 THD (dB) VREF = VDD = 5V 90 –100 VREF = VDD = 2.5V VREF = VDD = 2.5V 88 –105 84 –55 –35 –15 5 25 45 65 TEMPERATURE (°C) 85 105 125 –110 –55 –35 –15 5 25 45 65 TEMPERATURE (°C) ཮14. SNRᇑ࿒‫࠲ڦ܈‬ဣ ཮17. THDᇑ࿒‫࠲ڦ܈‬ဣ Rev. B | Page 12 of 32 85 105 125 07353-017 86 07353-014 SNR (dB) 92 AD7682/AD7689  3000 100 2.5V INTERNAL REF 4.096V INTERNAL REF INTERNAL BUFFER, TEMP ON INTERNAL BUFFER, TEMP OFF EXTERNAL REF, TEMP ON EXTERNAL REF, TEMP OFF VIO VDD CURRENT (μA) 2500 –90 –100 –120 0 50 = VDD = 5V, –0.5dB = VDD = 2.5V, –0.5dB = VDD = 2.5V, –10dB = VDD = 5V, –10dB 100 150 200 FREQUENCY (kHz) 60 1750 50 1500 40 1250 30 3.0 3.5 94 4.5 20 5.5 5.0 ཮21. ߾ፕ‫ୁۉ‬ᇑ‫ۉ‬ᇸ‫࠲ڦ‬ဣ 3000 fIN = 20kHz 180 fS = 200kSPS 2750 160 VREF = VDD = 5V 93 VDD = 5V, INTERNAL 4.096V REF 2500 VDD CURRENT (μA) 92 SNR (dB) 4.0 VDD SUPPLY (V) ཮18. THDᇑೕ୲‫࠲ڦ‬ဣ 95 70 2000 1000 2.5 07353-015 VREF VREF VREF VREF –110 2250 80 91 90 89 VREF = VDD = 2.5V 88 140 2250 120 VDD = 5V, EXTERNAL REF 2000 100 1750 80 1500 60 VDD = 2.5, EXTERNAL REF 87 1250 86 VIO CURRENT (μA) THD (dB) –80 90 VIO CURRENT (μA) 2750 –70 fS = 200kSPS 07353-021 –60 40 –8 –6 –4 –2 0 INPUT LEVEL (dB) 1000 –55 –35 –15 65 85 105 20 125 25 2 VDD = 2.5V, 85°C 20 tDSDO DELAY (ns) 1 0 –1 UNIPOLAR ZERO UNIPOLAR GAIN BIPOLAR ZERO BIPOLAR GAIN –35 –15 5 15 VDD = 2.5V, 25°C 10 VDD = 5V, 85°C VDD = 5V, 25°C 5 07353-023 VDD = 3.3V, 85°C VDD = 3.3V, 25°C 25 45 65 85 105 TEMPERATURE (°C) 125 0 07353-020 OFFSET ERROR AND GAIN ERROR (LSB) 45 ཮22. ߾ፕ‫ୁۉ‬ᇑ࿒‫࠲ڦ܈‬ဣ 3 –3 –55 25 TEMPERATURE (°C) ཮19. SNRᇑ๼෇‫ۉ‬ೝ‫࠲ڦ‬ဣ –2 5 ཮20. ฿ۙࢅሺᅮဃֶᇑ࿒‫࠲ڦ܈‬ဣ 0 20 40 60 80 SDO CAPACITIVE LOAD (pF) 100 ཮23. tDSDO ჽ‫׿‬ᇑSDO‫ۉ‬ඹ޶ሜࢅ‫ۉ‬ᇸ‫࠲ڦ‬ဣ Rev. B | Page 13 of 32 120 07353-022 85 –10 07353-018 VIO AD7682/AD7689  ຍᇕ ፌ‫گ‬ᆶၳ࿋(LSB) LSB๟ገ࣑ഗ੗ᅜ՗๖‫ڦ‬ፌၭሺଉă‫ܔ‬ᇀN࿋‫ݴ‬Ր୲‫ڦ‬ఇຕ ገ࣑ഗLjLSBᆩ‫ۉ‬უ՗๖ྺǖ ओ‫ݥݴ‬၍Ⴀ(INL) INL๟ኸ௅߲ஓᇑᅃཉٗ޶஢ଉ‫ڟࣃײ‬ኟ஢ଉ‫ڦײ‬኱၍‫ڦ‬ ೋֶăᆩፕ޶஢ଉ‫؜ۅ޿ڦײ‬၄ሞ‫ڼ‬ᅃ߲ஓገ࣑ኮമ‫½ڦ‬ LSB‫ت‬ăኟ஢ଉ‫ۨײ‬ᅭྺ‫؜ג‬ፌࢫᅃ߲ஓገ࣑1½ LSB‫ڦ‬ᅃ ߲‫ۉ‬ೝăٗ߳ஓ‫ڦ‬ዐ႐‫޿ڟ‬኱၍‫ڦ‬ਐ૗नྺೋֶ)९཮ 25*ă ྲ‫ݥݴ‬၍Ⴀ(DNL) ሞᅃ߲૙ၙADCዐLjஓገ࣑၎ਐ1 LSBăDNL๟ኸํाኵ ᇑُ૙ၙኵ‫ڦ‬ፌ‫ٷ‬ೋֶăঢ়‫׉‬ᆩԍኤ࿮฿ஓ‫ݴڦ‬Ր୲ઠ௮ ຎኄᅃࡀ߭ă ฿ۙဃֶ! ‫ڼ‬ᅃ߲ஓገ࣑ᆌ‫ܔ‬ᆌᇀᅃ߲Բఇె‫½ߛں‬ ۙဃֶ๟ኸํाገ࣑ᇑ޿‫ڦۅ‬ೋֶă ႑ሯԲ(SNR) SNRኸํा๼෇႑ࡽ‫ڦ‬਩‫ߵݛ‬ኵᇑలઊຯ༬ೕ୲ᅜူ‫أ‬ၿ հࢅ኱ୁᅜྔ໯ᆶഄ໲ೕ೷‫ڦݴׯ‬਩‫ࢅߵݛ‬ኮԲLjᆩ‫ݴ‬Ԟ (dB)՗๖ă ႑భԲ(SINAD) SINADኸํा๼෇႑ࡽ‫ڦ‬਩‫ߵݛ‬ኵᇑలઊຯ༬ೕ୲ᅜူԈ ઔၿհ‫ڍ‬኱ୁ‫ڦྔأ‬໯ᆶഄ໲ೕ೷‫ڦݴׯ‬਩‫ࢅߵݛ‬ኮԲLj ᆩ‫ݴ‬Ԟ(dB)՗๖ă ጺၿհ฿ኈ(THD) THDኸമ࿵߲ၿհ‫ڦݴׯ‬਩‫ࢅߵݛ‬ᇑ஢ଉ‫ײ‬๼෇႑ࡽ‫ڦ‬਩ ‫ߵݛ‬ኵኮԲLjᆩ‫ݴ‬Ԟ(dB)՗๖ă ࿮ሗො‫ۯ‬ༀ‫(ྷݔ‬SFDR) SFDRኸ๼෇႑ࡽᇑ‫ރ‬ኵሗො႑ࡽ‫ڦ‬਩‫ޗߵݛ‬ኵኮֶLjᆩ‫ݴ‬ Ԟ(dB)՗๖ă ᆶၳ࿋ຕ(ENOB) ENOBኸ૧ᆩኟ၀հ๼෇֪‫ݴڦڥ‬Ր୲ă໲ᇑSINAD‫࠲ڦ‬ ဣ੗ᅜ՗๖ྺǖ LSB‫ۉڦ‬ೝă฿ ሺᅮဃֶ! ፌࢫᅃ߲ஓገ࣑)ٗ111 … 10‫ڟ‬111 … 11*݀ิሞ‫گ‬ᇀՔ‫׬‬஢ ଉ‫ײ‬1½ LSB‫ڦ‬ఇె‫ۉ‬უăሺᅮဃֶ๟ኸሞၩ‫أ‬฿ۙဃֶኮ ࢫLjፌࢫᅃ߲ஓገ࣑‫ํڦ‬ा‫ۉ‬ೝᇑ૙ၙ‫ۉ‬ೝ‫ڦ‬ೋֶLjᆩ LSB(ई஢ଉ‫ڦྷݔײ‬ӥ‫ݴ‬Բ)՗๖ăᇑኮ‫׉ݥ‬၎ຼ‫ڦ‬ᅃ߲߁ ౒๟஢ଉ‫ײ‬ဃֶ(ᄺᆩLSBई஢ଉ‫ڦྷݔײ‬ӥ‫ݴ‬Բ՗๖)Ljࢫ ኁԈઔ฿ۙဃֶ‫ڦ‬ᆖၚă ੥০ჽ‫!׿‬ ੥০ჽ‫࢚׿‬ଉ֑णႠీLjኸٗCNV๼෇‫ڦ‬ฉืᄂ‫ڟ‬๼෇႑ ࡽԥԍ‫׼‬ժ੗৊ႜገ࣑‫้ڦ‬क़ă ຨༀၚᆌ! ຨༀၚᆌ๟ኸ๼‫؜‬஢ଉ‫ײ‬঩ሂ႑ࡽኮࢫLjADC‫ܔ‬๼෇৊ႜ ৛ඓ֑ण໯Ⴔ‫้ڦ‬क़ă ‫ۯ‬ༀ‫!ྷݔ‬ ‫ۯ‬ༀ‫ྷݔ‬ኸ஢ଉ‫ڦײ‬਩‫ߵݛ‬ኵᇑ๼෇‫܌‬থሞᅃഐ้֪‫ڦڥ‬ ጺ਩‫ߵݛ‬ሯำኮԲLjᆩ‫ݴ‬Ԟ(dB)՗๖ă ໲ᆩ࿋՗๖ă ཚ‫ڢ‬क़‫ز‬ඡ! ཚ‫ڢ‬क़‫ز‬ඡ࢚ଉඪᅪଇ߲၎ତཚ‫ڢ‬ኮक़‫زڦ‬ඡ຤ೝLjഄ֪ ଉ‫݆ݛ‬๟ॽᅃ߲኱ୁ႑ࡽแेᇀ‫֪ځ‬ཚ‫ڢ‬Ljժॽᅃ߲஢ଉ ‫ײ‬100 kHzኟ၀հ႑ࡽแेᇀ၎ତཚ‫ڢ‬ăႅ୑৊෇֪๬ཚ‫ڢ‬ ‫ڦ‬႑ࡽଉनྺ‫ز‬ඡLjᆩ‫ݴ‬Ԟ(dB)՗๖ă एጚ‫ۉ‬უ࿒‫܈‬ဣຕ! एጚ‫ۉ‬უ࿒‫܈‬ဣຕ๟LjሞTMINĂT（25°C)ࢅTMAX้֪ଉ‫ڦ‬ፌ ‫ࢅٷ‬ፌၭएጚ๼‫ۉ؜‬უ(VREF)ᇑሞ25°C้‫ڦ‬๼‫ۉ؜‬უ‫ۆڦ‬ ႙ೋᅎă໲ᆩppm/°C՗๖Ljऺ໙ࠅ๕ྺǖ ഄዐǖ VREF (Max)ྺTMINĂT (25°C)ईTMAX้‫ڦ‬ፌ‫ٷ‬VREFă VREF (Min)ྺTMINĂT (25°C)ईTMAX้‫ڦ‬ፌၭVREFă VREF (25°C)ྺ25°C้‫ڦ‬VREFă TMAX = +85°C. TMIN = –40°C. Rev. B | Page 14 of 32  $'$' ߾ፕᇱ૙! INx+ SWITCHES CONTROL MSB 32,768C 16,384C LSB 4C 2C C SW+ C BUSY REF COMP GND 32,768C 16,384C 4C 2C C MSB CONTROL LOGIC OUTPUT CODE C LSB SW– 07353-026 CNV INx– OR COM ཮24. ADC०ࣅ‫ۉ‬ୟ཮ ߁ຎ! ገ࣑ഗ֡ፕ! AD7682/AD7689๟4/8ཚ‫ڢ‬Ă16࿋Ă‫ࢁۉ‬ም‫ݴ‬ದደْ԰ৎस ٪ഗ(SAR)႙ఇຕገ࣑ഗ(ADC)Lj௅௱ీࠕገ࣑250,000߲ ֑ᄣ‫(ۅ‬250 kSPS)Ljଇْገ࣑ኮक़ഗॲ࠲܏ă‫֑ړ‬ᆩྔևए ጚ‫ۉ‬უᇸժᅜ1 kSPS໏୲߾ፕ้Lj‫ۆ‬႙ࠀࡼྺ17 μWLj‫׉ݥ‬ ๢ࢇ‫ڦۉࠃ׾ۉ‬ᆌᆩă AD7682/AD7689๟ ए ᇀ ‫ ࢁ ۉ‬ም ‫ ݴ‬ದ DAC‫ ڦ‬ደ ْ ԰ ৎ ႙ ADCă཮24၂๖କ޿ADC‫ڦ‬०ࣅ‫ۉ‬ୟ཮ăඹႠDACԈࡤ2 ߲ྜඇ၎ཞ‫ڦ‬16࿋ܾ৊዆े඄‫ۉ‬ඹንଚLjժ૶থ‫ڟ‬Բডഗ ‫ڦ‬ଇ߲๼෇‫܋‬ă AD7682/AD7689ాዃ‫ܠ‬ཚ‫ڢ‬Ă‫ࡼࠀگ‬ຕ਍֑णဣཥ໯Ⴔ‫ڦ‬ ໯ᆶፇ‫ׯ‬և‫ݴ‬LjԈઔǖ t t t t t t 16࿋࿮฿ஓ‫ڦ‬SAR ADC 4/8ཚ‫ڢ‬Ă‫زگ‬ඡ‫ܠ‬ୟްᆩഗ ాև‫گ‬೏ᅎएጚ‫ۉ‬უᇸࢅ࣐؋ ࿒‫ߌد܈‬ഗ ੗჋‫ڇ‬ट‫୳ۅ‬հഗ ཚ‫ڢ‬Ⴞଚഗ ኄၵᇮॲཚࡗᅃ߲SPIग़ඹ‫ڦ‬14࿋स٪ഗ৊ႜದዃăገ࣑঳ ࡕᄺ๟SPIग़ඹ‫ڦ‬Lj੗ᅜሞገ࣑ኮࢫईገ࣑೺क़‫܁‬ൽLjժ ൐੗ᅜ჋ስ࣮‫܁‬ᇑገ࣑၎࠲‫ڦ‬ದዃă AD7682/AD7689ྺᆩࢽ༵ࠃକೌా֑ᄣԍ‫׼‬ഗLjுᆶୁ຤ ၍ჽ‫׿‬ă AD7682/AD7689‫߾ۨܮڦ‬ፕ‫ۉ‬უྺ2.3 V዁5.5 VLj੗ᅜᇑඪ ࢆ1.8 V዁5 Vຕጴஇडဣଚথ੨ăଇ੼ഗॲ֑ᆩ20ᆅগĂ4 mm × 4 mm LFCSP‫ހ‬ጎLjবู੣क़LjದዃଳऄăAD7682/ AD7689ᇑ16࿋AD7699ࢅ14࿋AD7949ᆅগग़ඹă ሞ֑ण঩܎LjᇑԲডഗ๼෇၎૶‫ڦ‬ንଚ‫܋‬ጱཚࡗSW+ࢅ SW-૶থ‫ڟ‬GNDă໯ᆶ‫܀‬૬ਸ࠲‫૶ۼ‬থ‫ڟ‬ఇె๼෇‫܋‬ă ᅺُLj‫ۉ‬ඹንଚᆩፕ֑ᄣ‫ۉ‬ඹᅜ֑णINx+ࢅINx−)ईCOM* ๼෇‫ڦ܋‬ఇె႑ࡽă‫֑ړ‬ण঩܎ྜ‫ׯ‬൐CNV๼෇Վྺߛ‫ۉ‬ ೝ้Lj৽ࣷഔ‫ۯ‬ገ࣑঩܎ă‫ړ‬ገ࣑঩܎ਸ๔้LjSW+ࢅ SW-๯ံ܏ਸă඗ࢫLj2߲‫ۉ‬ඹንଚٗ๼෇‫܏܋‬ਸLj૶থ‫ڟ‬ GND๼෇ăᅺُLj֑ण঩܎঳ຐ้վጛ‫ڦڟ‬INx+ᇑINx− )ईCOM*๼෇ኮक़‫ۉݴֶڦ‬უԥแेᇀԲডഗ๼෇‫܋‬Lj‫ڞ‬ ዂԲডഗՎ‫ڥ‬փೝ࢚ăሞGNDᇑREFኮक़ൎ࣑‫ۉ‬ඹንଚ‫ڦ‬ ߳ᇮॲLjԲডഗ๼෇ॽӀቷܾ৊዆े඄‫ۉ‬უօ৊ )VREF/2ĂVREF/4 . . . VREF/32,768*Վࣅă੦዆இडٗMSBਸ ๔ᅈْൎ࣑ኄၵਸ࠲LjᅜՍ๑Բডഗዘႎ࣮‫ڟ‬ೝ࢚ጒༀă ྜ‫ࢫײࡗُׯ‬Ljഗॲ‫֑࣮ݓ‬ण঩܎Lj੦዆இडׂิADC๼ ‫؜‬ஓࢅ‫ݏ‬஬႑ࡽኸ๖ă AD7682/AD7689ਏᆶᅃ߲ೌฉገ้࣑ዓLjᅺُገ࣑ࡗ‫ײ‬փ Ⴔᄲ‫ز‬ႜ้ዓSCKă Rev. B | Page 15 of 32 AD7682/AD7689  ๼෇ದዃྺມटႠ‫)้ྷݔ‬COM=VREF/2ईINx− = VREF/2‫ֶڦ‬ ‫*ܔݴ‬Ljຕ਍๼‫ܾྺ؜‬৊዆ցஓă AD7682/AD7689‫ڦ‬૙ၙ‫ڿد‬༬Ⴀස཮25໯๖Ljഄዐ၂๖କ ๑ᆩ4.096 Vాևएጚ‫ۉ‬უᇸ้‫ڇڦ‬टႠࢅມटႠ‫ྷݔ‬ă TWOS STRAIGHT COMPLEMENT BINARY 011...111 111...111 011...110 011...101 111...110 111...101 100...010 000...010 100...001 000...001 100...000 000...000 –FSR –FSR + 1LSB –FSR + 0.5LSB +FSR – 1LSB +FSR – 1.5LSB ANALOG INPUT 07353-027 ๼෇ದዃྺ‫ڇ‬टႠ‫܋ڇ)้ྷݔ‬LjCOMྺ֖੊‫ں‬LjईINx− ྺ֖੊‫*ܔݴֶڦں‬Ljຕ਍๼‫ྺ؜‬኱থܾ৊዆ă ADC CODE ‫ࡧڿد‬ຕ! ཮25. ADC૙ၙ‫ࡧڿد‬ຕ ՗8. ๼‫؜‬ஓࢅ૙ၙ๼෇‫ۉ‬უ ௮ຎ FSR − 1 LSB ዐक़‫ۉ‬ೝ + 1 LSB ዐक़‫ۉ‬ೝ ዐक़‫ۉ‬ೝ − 1 LSB −FSR + 1 LSB −FSR 1 2 3 4 ‫ڇ‬टႠఇె๼෇1 VREF= 4.096 V 4.095938 V 2.048063 V 2.048 V 2.047938 V 0V ຕጴ๼‫؜‬ஓ (ๆୃ৊዆‫ڦ‬኱থܾ৊዆ஓ) 0xFFFF3 0x8001 0x8000 0x7FFF 0x0001 0x00004 COMईINx− = 0 VLjईኁ໯ᆶInxᅜGNDྺ֖੊ă COMईINx− = VREF /2ă ኄᄺ๟‫ג‬ଉ‫ײ‬ఇె๼෇)(INx+) − (INx−)ईCOMߛᇀVREF − GND*‫ܔ‬ᆌ‫ڦ‬ஓă ኄᄺ๟വଉ‫ײ‬ఇె๼෇)(INx+) − (INx−)ईCOM‫گ‬ᇀGND*‫ܔ‬ᆌ‫ڦ‬ஓă Rev. B | Page 16 of 32 ມटႠఇె๼෇2 VREF= 4.096 V 2.047938 V 0V −2.047938 V −2.048 V ຕጴ๼‫؜‬ஓ (ๆୃ৊዆‫ܾڦ‬৊዆ցஓ) 0x7FFF3 0x0001 0x0000 0xFFFF 0x8001 0x80004 AD7682/AD7689  ‫ۆ‬႙૶থ཮! 5V REF 0V TO VREF IN0 V– REFIN VDD 100nF VIO AD7689 V+ DIN MOSI IN[7:1] 0V TO VREF ADA4841-x 3 SCK SCK SDO MISO CNV SS V– 0V OR VREF /2 COM GND NOTES 1. INTERNAL REFERENCE SHOWN. SEE VOLTAGE REFERENCE OUTPUT/INPUT SECTION FOR REFERENCE SELECTION. 2. CREF IS USUALLY A 10μF CERAMIC CAPACITOR (X5R). 3. SEE THE DRIVER AMPLIFIER CHOICE SECTION FOR ADDITIONAL RECOMMENDED AMPLIFIERS. 4. SEE THE DIGITAL INTERFACE SECTION FOR CONFIGURING AND READING CONVERSION DATA. 07353-028 ADA4841-x 3 100nF 100nF 10μF2 V+ 1.8V TO VDD ཮26. ֑ᆩ‫ۉ߲ܠ‬ᇸ‫ۆڦ‬႙ᆌᆩ‫ۉ‬ୟ 1.8V TO VDD +5V 10μF2 100nF 100nF 100nF V+ REF REFIN VDD VIO ADA4841-x 3 V– AD7689 DIN MOSI SCK SCK SDO MISO CNV SS IN[7:1] V+ ADA4841-x 3 V– VREF p-p VREF /2 COM GND NOTES 1. INTERNAL REFERENCE SHOWN. SEE VOLTAGE REFERENCE OUTPUT/INPUT SECTION FOR REFERENCE SELECTION. 2. CREF IS USUALLY A 10μF CERAMIC CAPACITOR (X5R). 3. SEE THE DRIVER AMPLIFIER CHOICE SECTION FOR ADDITIONAL RECOMMENDED AMPLIFIERS. 4. SEE THE DIGITAL INTERFACE SECTION FOR CONFIGURING AND READING CONVERSION DATA. ཮27. ֑ᆩມटႠ๼෇‫ۆڦ‬႙ᆌᆩ‫ۉ‬ୟ Rev. B | Page 17 of 32 07353-029 IN0 AD7682/AD7689  ‫ڇ‬टႠईມटႠ! 70 ཮26໯๖‫ڦ‬૩ጱྺ֑ᆩ‫ۉ߲ܠ‬ᇸ้AD7682/AD7689‫ॺڦ‬ᅱ ૶থ཮ă 65 60 ມटႠ‫ۉڇ‬ᇸ! CMRR (dB) 55 ཮27໯๖‫ڦ‬૩ጱྺᅃ߲ມटႠ๼෇ဣཥLj໲֑ᆩ‫ۉڇ‬ᇸࢅ ాևएጚ‫ۉ‬უᇸ)੗჋ስփཞ‫ڦ‬VIO‫ۉ‬ᇸ*ă‫ٷݣړ‬ഗ/႑ࡽ ۙ૙‫ۉ‬ୟ࿋ᇀᇺ‫܋‬ժ٪ሞగᅃࠌఇ‫ۉ‬უ้Ljُ‫ۉ‬ୟᄺ࢔ᆶ ᆩă൩ጀᅪLj‫ܔ‬ᇀඪࢆ๼෇ದዃLjInx๼෇‫ۼ‬๟‫ڇ‬टႠLjժ ๔ዕᅜGNDྺ֖੊)न๑ሞມटႠ‫ྷݔ‬ᄺփ٪ሞ޶‫ۉ‬უ*ă ఇె๼෇! ๼෇঳ࠓ ཮28၂๖କAD7682/AD7689๼෇঳ࠓ‫ڪڦ‬ၳ‫ۉ‬ୟă2߲ܾ ट࠶D1ࢅD2ྺఇె๼෇)IN[7:0]ࢅCOM*༵ࠃESDԍࢺăጀ ᅪLjఇె๼෇႑ࡽփీ‫ࡆۉࠃࡗג‬0.3 VᅜฉLj‫ޏ‬ሶࣷሰ‫ׯ‬ ܾट࠶ኟೋLjժਸ๔‫ୁۉڞد‬ă ኄၵܾट࠶੗ᅜ‫ت‬૙ፌߛ130 mA‫ڦ‬ኟೋ‫ୁۉ‬ă૩සLj‫ړ‬๼ ෇࣐؋‫ۉ‬ᇸᇑVDDփཞ้Ljፌዕ੗ీࣷ݀ิኄዖ൧઄ăُ ้Ljසࡕ๼෇࣐؋‫܌‬ୟLj‫ୁۉ‬၌዆੗ᅜԍࢺഗॲă 40 35 30 D1 CPIN RIN 10 100 FREQUENCY (kHz) 1k 10k ሞ֑ण঩܎Ljఇె๼෇‫ڦ‬ፆੇ੗ᅜੂ‫ׯ‬๟ᆯRINࢅCIN‫૴ز‬ ࠓ‫ྪڦׯ‬ஏᇑ‫ۉ‬ඹCPIN‫ڦ‬ժ૴ፇࢇăCPINዷᄲԈઔᆅগ‫ۉ‬ ඹăRIN‫ۆ‬႙ኵྺ2.2 kΩLj๟ᆯ‫ۉ૴ز‬ፆᇑਸ࠲‫ڞڦ‬ཚ‫ۉ‬ፆ ࠓ‫ڦׯ‬णጺᇮॲăCIN‫ۆ‬႙ኵྺ27 pFLjዷᄲԈઔADC֑ᄣ ‫ۉ‬ඹă ੗჋‫گ‬ཚ୳հഗ! ሞገ࣑঩܎Ljਸ࠲܏ਸLj๼෇ፆੇৈԈઔCPINă‫ړ‬AD7682/ AD7689৊ႜ֑ण้LjRINᇑC INࠓ‫ׯ‬ᅃ߲‫ڇ‬ट‫گۅ‬ཚ୳հ ഗLj੗ᅜই‫گ‬փଆं۠ᆖၚժ၌዆ઠጲൻ‫ۉۯ‬ୟ‫ڦ‬ሯำă ޿‫گ‬ཚ୳հഗ੗ᅜཚࡗCFG[6]Պ‫ྺײ‬ඇ‫੻ټ‬ई¼‫੻ټ‬Ljස ՗10໯๖ăُยዃॽRINՎྺ19 kΩă൩ጀᅪLj๑ᆩ޿୳հ ഗ้Ljገ࣑ഗཾུ໏୲ᄺՂႷই‫¼ྺگ‬ăසࡕሞ‫(੻ټ‬BW) ยྺ¼้๑ᆩፌߛཾུ໏୲Lj৽ࣷྵ‫ݒ‬ገ࣑ഗ֑ण้क़tACQ ᄲ൱Lj‫ڞ‬ዂTHD༵ߛă CIN D2 07353-030 GND 1 ཮29. ఇె๼෇CMRRᇑೕ୲‫࠲ڦ‬ဣ VDD INx+ OR INx– OR COM 45 07353-031 ‫ܔ‬ᇀُ‫ۉ‬ୟLj੗ᅜ๑ᆩࡆ‫ࡆڟ‬๼෇ࢅ๼‫ٷݣڦ؜‬ഗLj‫ڍ‬ᆌ ጀᅪժ੊୯฿ۙ‫ۉ‬უᇑ๼෇ࠌఇ‫࠲ڦྷݔ‬ဣ)VREF = 4.096 V ้Lj1 LSB = 62.5 μV*ă൩ጀᅪLj‫ړ‬๑ᆩມटႠ๼෇ದዃ ้Ljገ࣑঳ࡕྺܾ৊዆ցஓ߭๕ăᆶ࠲๑ᆩ‫ۉڇ‬ᇸ‫ٷݣ‬ഗ ‫ܠ߸ڦ‬႑တLj൩֖੊ADIࠅິྪበ(www.analog.com)ฉ‫ڦ‬ ᆌᆩԴऻAN-581ǖ“‫ۉڇ‬ᇸᆌᆩዐ‫ڦ‬ሏ໙‫ٷݣ‬ഗೋዃࢅඁ ᳘”ă 50 ཮28. ‫ڪ‬ၳఇె๼෇‫ۉ‬ୟ ޿ఇె๼෇঳ࠓኧ‫ܔ׼‬INx+ᇑCOMईINx+ᇑINx−ኮक़‫ڦ‬ ኈֶ‫ݴ‬႑ࡽ৊ႜ֑ᄣă)COMईINx− = GND ± 0.1 VईVREF ± 0.1 Vă*૧ᆩኄၵֶ‫ݴ‬๼෇੗ᅜᅞ዆ଇ߲๼෇‫ࠌڦ܋‬ఇ႑ ࡽLjස཮29໯๖ă Rev. B | Page 18 of 32 AD7682/AD7689 ๼෇ದዃ! ཮30၂๖କ૧ᆩದዃस٪ഗCFG[12:10]ದዃఇె๼෇‫ڦ‬փ ཞ‫݆ݛ‬ăၘ൧൩֖९“ದዃस٪ഗLjCFG”և‫ݴ‬ă ఇె๼෇੗ᅜದዃྺǖ t ! ཮30ALj‫܋ڇ‬Ljᅜဣཥ‫੊֖ྺں‬ǗCFG[12:10] = 1112ă ኄዖದዃዐLj໯ᆶ๼෇(IN[7:0])‫ྷݔڦ‬਩ྺGND዁ VREFă t ཮30BLjਏᆶᅃ߲ࠌఇ֖੊‫ڦۅ‬ມटႠֶ‫ݴ‬ǗCOM = VREF/2ǗCFG[12:10] = 0102ă COM૶থ‫ڇڦں੊֖ڟ‬टႠֶ‫ݴ‬ǗCFG[12:10] = 1102ă ኄዖದዃዐLj໯ᆶ๼෇(IN[7:0])‫ྷݔڦ‬਩ྺGND዁ VREFă t t ཮30CLj޶๼෇ཚ‫ڢ‬ᅜVREF/2ྺ֖੊‫ڦ‬ມटႠֶ‫ܔݴ‬Ǘ CFG[12:10] = 00X2ă޶๼෇ཚ‫ڢ‬ᅜ֖੊‫ڇڦ੊֖ྺں‬ट Ⴀֶ‫ܔݴ‬ǗCFG[12:10] = 10X2ăኄၵದዃዐLjኟ๼෇ཚ ‫ྺྷݔڦڢ‬GND዁VREFă޶๼෇ཚ‫ྺڢ‬ᅜVREF/2ྺ֖੊ (ມटႠ‫)ܔ‬ईGND(‫ڇ‬टႠ‫)ܔ‬ăኟཚ‫ڢ‬ཚࡗCFG[9:7]ದ ዃăසࡕCFG[9:7]ྺ౾ຕLjሶ๑ᆩIN0ĂIN2ĂIN4ࢅ IN6ăසࡕCFG[9:7]ྺആຕLjሶ๑ᆩIN1ĂIN3ĂIN5ࢅ IN7Ljස཮30Cઔࡽዐ‫ڦ‬ཚ‫ڢ‬໯๖ă૩සLj‫ܔ‬ᇀኟཚ‫ڢ‬ ྺIN0‫ڦ‬IN0/IN1‫ܔ‬LjCFG[9:7] = 0002Ǘ‫ܔ‬ᇀኟཚ‫ྺڢ‬ IN5‫ڦ‬IN4/IN5‫ܔ‬LjCFG[9:7] = 1012ă൩ጀᅪLj‫ܔ‬ᇀႾଚ ഗ(ၘ९ཚ“‫ڢ‬Ⴞଚഗ”և‫)ݴ‬Ljኟཚ‫ڢ‬๔ዕྺIN0ĂIN2Ă IN4ࢅIN6ă ཮ 30DLj ๼ ෇ ದ ዃ ྺ ᅜ ฉ ದ ዃ ‫ ڦ‬ඪ ᅪ ፇ ࢇ ) ՗ ௽ AD7682/AD7689੗ᅜ‫ۯ‬ༀದዃ*ă CH0+ IN0 CH0+ CH1+ IN1 CH1+ IN1 CH2+ IN2 CH2+ IN2 CH3+ IN3 CH3+ IN3 CH4+ IN4 CH4+ IN4 CH5+ IN5 CH5+ IN5 CH6+ IN6 CH6+ IN6 CH7+ IN7 CH7+ IN7 COM COM– COM IN0 GND A—8 CHANNELS, SINGLE ENDED GND B—8 CHANNELS, COMMON REFERNCE CH0+ (–) IN0 CH0+ (–) CH0– (+) IN1 CH0– (+) IN1 CH1+ (–) IN2 CH1+ (–) IN2 CH1– (+) IN3 CH1– (+) IN3 CH2+ (–) IN4 CH2+ IN4 CH2– (+) IN5 CH3+ IN5 CH3+ (–) IN6 CH4+ IN6 CH3– (+) IN7 CH5+ IN7 COM IN0 COM– COM GND C—4 CHANNELS, DIFFERENTIAL GND D—COMBINATION 07353-032  ཮30. ‫ܠ‬ୟްᆩఇె๼෇ದዃ Ⴞଚഗ AD7682/AD7689Ԉઔᅃ߲ཚ‫ڢ‬ႾଚഗLjሞዘް෢௮ཚ‫้ڢ‬ ‫׉ݥ‬ᆶᆩăᆶ࠲Ⴞଚഗ֡ፕ‫ၘڦ‬ဦ႑တLj൩֖९“ཚ‫ڢ‬Ⴞ ଚഗ”և‫ݴ‬ă ᇸፆੇ ‫ ړ‬ൻ ‫ ۉ ۯ‬ୟ ‫ ڦ‬ᇸ ፆ ੇ ড ‫ ้ گ‬Lj ੗ ᅜ ኱ থ ൻ ‫ ۯ‬AD7682/ AD7689ăߛᇸፆੇࣷ၂ዸᆖၚ঍ୁ༬ႠLj༬՚๟THDă ኱ୁ༬Ⴀ‫ܔ‬๼෇ፆੇ‫܈ߌ௺ڦ‬၎‫ܔ‬ড‫گ‬ăፌ‫ڦٷ‬ᇸፆੇൽ ਦᇀ੗ඹႹ‫ڦ‬ጺၿհ฿ኈ(THD)ăTHDႠీူই‫܈ײ‬๟ᇸ ፆੇࢅፌ‫ٷ‬๼෇ೕ୲‫ࡧڦ‬ຕă Rev. B | Page 19 of 32 AD7682/AD7689  ൻ‫ٷݣۯ‬ഗ჋ስ! एጚ‫ۉ‬უ๼‫؜‬/๼෇ ໚඗AD7682/AD7689࢔ඹᅟൻ‫ۯ‬Lj‫ڍ‬ൻ‫ٷݣۯ‬ഗՂႷ஢ፁ ူଚᄲ൱ǖ AD7682/AD7689ሎႹ჋ስट‫گ‬࿒‫܈‬೏ᅎ‫ాڦ‬ևएጚ‫ۉ‬უ ᇸĂྔևएጚ‫ۉ‬უᇸईྔև࣐؋एጚ‫ۉ‬უᇸă x AD7682/AD7689‫ాڦ‬ևएጚ‫ۉ‬უᇸ༵ࠃ‫؜‬෥‫ڦ‬ႠీLj੗ᅜ ᆩᇀबࢭ໯ᆶᆌᆩă੗ీ‫ڦ‬एጚ‫ۉ‬უ‫ݛ‬ӄᆶ6߲Ljස՗10 ໯ଚLjၘ൧९ᅜူ߳և‫ݴ‬ă ൻ‫ۯ‬ഗ‫ٷݣ‬ഗ໯ׂิ‫ڦ‬ሯำՂႷፁࠕ‫گ‬Ljᅜԍ‫׼‬ AD7682/AD7689‫ڦ‬SNRࢅገ࣑ሯำႠీă൩ጀᅪLj AD7682/AD7689‫ڦ‬ሯำᇺ‫گ‬ᇀ‫ܠٷ‬ຕഄ໲16࿋ADCLj ᅺُLjन๑๑ᆩሯำড‫ٷݣڦٷ‬ഗઠൻ‫ۯ‬Ljධ඗੗ీ ஢ፁߴۨ‫ڦ‬ဣཥሯำᄲ൱ăઠጲ‫ٷݣ‬ഗ‫ڦ‬ሯำᆯRINࢅ CIN໯ࠓ‫ڦׯ‬AD7682/AD7689ఇె๼෇‫ۉ‬ୟ‫گ‬ཚ୳հഗ ৊ႜ୳հLjईኁᆯྔև୳հഗ)සᆶ*৊ႜ୳հă AD7682/AD7689‫ۆڦ‬႙ሯำྺ35 μV rms (VREF= 5V)Ljᅺ ُ‫ٷݣ‬ഗᆅഐ‫ڦ‬SNRႠీই‫ྺگ‬ǖ ! ๑ీ޿एጚ‫ۉ‬უᇸᄺࣷ๑ీాև࿒‫ߌد܈‬ഗLj໲֪ଉ AD7682/AD7689‫ాڦ‬և࿒‫܈‬Ljᅺܸ੗ᆩᇀኴႜဣཥၯጚă ൩ ጀ ᅪ Lj ‫ ړ‬๑ ᆩ ࿒ ‫ ߌ د ܈‬ഗ ้ Lj ๼ ‫ ੊ ֖ ྺ ؜‬AD7682/ AD7689 GNDᆅগ‫ڦ‬኱থܾ৊዆ஓă ഄዐǖ f–3dBྺAD7682/AD7689‫ڦ‬๼෇‫)੻ټ‬ඇ‫ྺ੻ټ‬1.7 MHzLj ¼‫ྺ੻ټ‬425 kHz*Ljईኁ๼෇୳հഗ)සᆶ*‫ڦ‬পኹೕ ୲ă ࿒‫܈‬ց‫׋‬๑ాևएጚ‫ۉ‬უᇸ‫ڦ‬৛‫ڟٳ܈‬10 mVᅜాăాև एጚ‫ۉ‬უᇸ๟ঢ়ࡗྲۙ‫ڦ‬Ljഄ‫ۆ‬႙࿒೏ྺ±10 ppm/°Că Nྺ‫ٷݣ‬ഗ‫ڦ‬ሯำሺᅮ)૩සLj࣐؋ഗದዃ้ྺ1*ă ස཮31໯๖૶থAD7682/AD7689Ljᅜ๑ᆩ2.5 Vई4.096 Vా ևएጚ‫ۉ‬უᇸă eNྺሏ໙‫ٷݣ‬ഗ‫ڪڦ‬ၳ๼෇ሯำ‫ۉ‬უLj‫ڇ‬࿋nV/√Hză x x ‫ ܔ‬ᇀ ঍ ୁ ᆌ ᆩ Lj ൻ ‫ ۯ‬ഗ ‫ ڦ‬THDႠ ీ ᆌ ᇑ AD7682/ AD7689၎‫ړ‬ă཮18၂๖କAD7682/AD7689‫ڦ‬THDᇑೕ ୲‫࠲ڦ‬ဣă ‫ܔ‬ᇀ‫ܠ‬ཚ‫ڢ‬Ă‫ܠ‬ୟްᆩᆌᆩLjሞ௅߲๼෇ई๼෇‫ܔ‬ ฉLjൻ‫ٷݣۯ‬ഗࢅAD7682/AD7689ఇె๼෇‫ۉ‬ୟՂႷ ๑‫ۉ‬ඹንଚᅜ16࿋຤ೝ(0.0015%)ॺ૬஢ଉ‫ײ‬঩ሂăሞ ‫ٷݣ‬ഗ‫ڦ‬ຕ਍๮֩ዐLj߸‫׉‬९‫ڦ‬๟ࡀۨ0.1%዁0.01%‫ڦ‬ ॺ૬้क़ăኄ੗ీᇑ16࿋຤ೝ‫ॺڦ‬૬้क़၂ዸփཞLj ᅺُ჋ስኮമᆌ৊ႜᄓኤă ՗:/!ླྀ४‫ڦ‬ൻ‫ٷݣۯ‬ഗ! ‫ٷݣ‬ഗ! ADA4841-x AD8655 AD8021 AD8022 OP184 AD8605, AD8615 ‫ۆ‬႙ᆌᆩ ट‫گ‬ሯำĂၭ؅٫Ă‫ࡼࠀگ‬ 5 V‫ۉڇ‬ᇸĂ‫گ‬ሯำ ट‫گ‬ሯำĂߛೕ ‫گ‬ሯำĂߛೕ ‫ࡼࠀگ‬Ă‫گ‬ሯำĂ‫گ‬ೕ 5 V‫ۉڇ‬ᇸĂ‫ࡼࠀگ‬ Rev. B | Page 20 of 32 10μF 100nF REF AD7682/ AD7689 REFIN TEMP GND 07353-049 ! ాևएጚ‫ۉ‬უᇸ/࿒‫ߌد܈‬ഗ ৛௢ాևएጚ‫ۉ‬უᇸ๢ࢇ‫ܠٷ‬ຕᆌᆩLj੗ᅜยዃྺ2.5 Vई 4.096 V๼‫؜‬Ljස՗10໯๖ă๑ీాևएጚ‫ۉ‬უᇸ้LjREFIN ᆅগฉཞᄣ٪ሞ‫ټ‬ဤ‫ۉ‬უLjႴᄲᅃ߲0.1 μFྔև‫ۉ‬ඹă REFIN‫ୁۉڦ‬๼‫؜‬ᆶ၌Ljසࡕࢫথᅃ߲๢‫࣐ڦړ‬؋ഗLjස AD8605‫ڪ‬Ljሶ໲੗ᅜᆩፕᅃ߲ᇸă൩ጀᅪLjాևएጚ‫ۉ‬უ ᇸ‫ڦ‬ยዃփཞ(2.5 Vई4.096 V)LjREFIN‫ۉڦ‬უᄺփཞă ཮31. 2.5 Vई4.096 Vాևएጚ‫ۉ‬უᇸ૶থ AD7682/AD7689  ྔևएጚ‫ۉ‬უᇸࢅాև࣐؋ഗ एጚ‫ۉ‬უᇸඁ᳘! ྺ߀฀೏ᅎႠీLj੗ᅜඟᅃ߲ྔևएጚ‫ۉ‬უᇸದࢇాև࣐ ؋ഗ๑ᆩLjස཮32໯๖ăྔևᇸ૶থ‫ڇాೌڟ‬࿋ሺᅮ࣐؋ ഗ‫ڦ‬๼෇‫܋‬REFINLjժሞREFᆅগฉׂิ๼‫؜‬ăྔևएጚ ‫ۉ‬უᇸದࢇాև࣐؋ഗ๑ᆩ้Lj੗ᅜ๑ీई্ᆩ࿒‫ߌد܈‬ ഗăस٪ഗၘ൧֖९՗10ă࣐؋ഗ๑ీࢫLjሺᅮྺ1ժ൐ ๼෇/๼‫؜‬၌዆ሞVDD −0.2 VLj‫ڍ‬ፌ‫ٷ‬ඹႹ‫ۉ‬უՂႷၭᇀई ‫ڪ‬ᇀ(VDD − 0.5 V)ă ࿮ஃ๟๑ᆩాևएጚᇸ࣏๟ྔևएጚᇸLjAD7682/AD7689 ‫ڦ‬एጚ‫ۉ‬უ๼‫؜‬/๼෇REF‫ۼ‬ਏᆶ‫ۯ‬ༀ๼෇ፆੇLjᅺُ๑૧ ᆩ‫گ‬ፆੇᇸൻ‫ۯ‬REFLjREFᇑGNDᆅগኮक़ᆌᆶၳඁ᳘ă ُඁ᳘ൽਦᇀ჋ስࢆዖएጚ‫ۉ‬უᇸLj‫ڍ‬ཚ‫׉‬Ԉઔᅃ߲૶থ ‫ڟ‬REFࢅGNDĂਏᆶፌ‫گ‬सิ‫گڦߌۉ‬ESR‫ۉ‬ඹă‫ړ‬๑ᆩ ాևएጚ‫ۉ‬უᇸĂ ADR43x/ADR44xྔևएጚ‫ۉ‬უᇸई AD8031ĂAD8605‫گڪ‬ፆੇ࣐؋ഗ้Lj10 μF)X5RĂ1206؅ ٫*‫ڦ‬༩ٍႊೌ‫ۉ‬ඹ๟ࢇ๢‫ڦ‬ă ాևएጚ‫ۉ‬უ࣐؋ഗሞ‫ܠ‬ገ࣑ഗᆌᆩዐ࢔ᆶᆩLjᅺྺኄၵ ᆌᆩཚ‫׉‬Ⴔᄲᅃ߲࣐؋ഗăُྔLj੗ᅜ๑ᆩᅃ߲‫ࡼࠀگ‬ए ጚ‫ۉ‬უᇸLjᅺྺాև࣐؋ഗ༵ࠃକൻ‫ۯ‬AD7682/AD7689‫ڦ‬ SARॐࠓ໯Ⴔ‫ڦ‬Ⴀీă REF SOURCE ≤(VDD – 0.5V) 10μF 100nF REF AD7682/ AD7689 एጚ‫ۉ‬უᇸඁ᳘‫ۉ‬ඹ‫ڦ‬Ӧ‫ݣ‬࿋ዃ‫ܔ‬ᇀAD7682/AD7689‫ڦ‬Ⴀ ీᄺ࢔ዘᄲLjၘ९“քਆք၍”և‫ڦݴ‬ຫ௽ăඁ᳘‫ۉ‬ඹᆌᇑ ADC‫ڦ‬REFᆅগ࿋ᇀཞᅃ֨Ljժ൐ᆩٚPCBጽ၍૶থă GNDᄺᆌᅜፌ‫܌‬ਐ૗૶থ‫ڟ‬एጚᇸඁ᳘‫ۉ‬ඹLjժཚࡗຕ߲ ࡗ੥૶থ‫ڟ‬ఇె‫ں‬ă සࡕႴᄲLj੗ᅜ๑ᆩ‫گ‬዁2.2 μF‫ڦ‬ၭඁ᳘‫ۉ‬ඹLj໲‫ܔ‬Ⴀీ )༬՚๟DNL*‫ڦ‬ᆖၚटၭă REFIN ࿮ஃසࢆLjREFᇑGNDᆅগኮक़փႴᄲ‫گڦྔܮ‬ኵ༩ٍඁ ᳘‫ۉ‬ඹ)ස100 nF*ă TEMP GND ‫ܔ‬ᇀ๑ᆩ‫߲ܠ‬AD7682/AD7689ഗॲईഄ໲PulSARഗॲ‫ڦ‬ᆌ ᆩLj๑ᆩాևएጚ‫ۉ‬უ࣐؋ഗ࣐؋ྔևएጚ‫ۉ‬უࣷ߸ᆶ ၳLjኄᄣీই‫گ‬SARገ࣑‫ز‬ඡă ཮32. ๑ᆩాև࣐؋ഗ‫ྔڦ‬ևएጚ‫ۉ‬უᇸ ྔևएጚ‫ۉ‬უᇸ ሞୃዐएጚ‫ۉ‬უ‫ݛ‬ӄዐLjඪࢆᅃዖ‫ۼ‬੗ᅜස཮33໯๖ॽᅃ ߲ྔևएጚ‫ۉ‬უᇸ኱থ૶‫ڟ‬REFᆅগLjᅺྺREF‫ڦ‬๼‫؜‬ፆ ੇ‫ٷ‬ᇀ5 kΩăྺই‫ࡼࠀگ‬Ljएጚ‫ۉ‬უᇸࢅ࣐؋ഗᆌ‫܏࠲ړ‬ă ‫ܔ‬ᇀႴᄲ๑ᆩ࿒‫ߌد܈‬ഗ‫ڦ‬ᆌᆩLjాևएጚ‫ۉ‬უᇸՂႷԍ ‫׼‬๑ీ(ాև࣐؋ഗ੗ᅜ্ᆩ)ăस٪ഗၘ൧֖९՗10ăྺ ߀฀೏ᅎႠీLjླྀ४๑ᆩADR43xईADR44x‫ྔڪ‬ևएጚ‫ۉ‬ უᇸă एጚ‫ۉ‬უᇸ࿒‫܈‬ဣຕ(TC)ࣷ኱থᆖၚ஢ଉ‫ײ‬LjᅺُLjሞ஢ ଉ‫ײ‬৛‫׉ݥ܈‬ዘᄲ‫ڦ‬ᆌᆩዐLjՂႷ༬՚ጀᅪ࿒‫܈‬ဣຕă૩ සLjएጚ‫ۉ‬უᇸ±10 ppm/°C‫ڦ‬࿒‫܈‬ဣຕॽ๑஢ଉ‫ײ‬ᅜ ±1 LSB/°C‫߀܈ޗڦ‬Վă REF SOURCE 0.5V < REF < (VDD + 0.3V) REF AD7682/ AD7689 NO CONNECTION REQUIRED REFIN TEMP GND 07353-047 10μF ཮33. ྔևएጚ‫ۉ‬უᇸ ൩ጀᅪLjᆯᇀాևएጚ‫ۉ‬უ၌዆ሞ4.096 VLj๑ᆩ5 Vྔև एጚ‫ۉ‬უᇸ้SNRႠీፌॅăSNRႠీই‫ऺڦ܈ײگ‬໙ࠅ ๕සူǖ SNR LOSS 20 log 4.096 5 Rev. B | Page 21 of 32 AD7682/AD7689  ‫ۉ‬ᇸ! ٗएጚᇸྺADCࠃ‫!ۉ‬ AD7682/AD7689๑ᆩଇ߲‫ۉ‬ᇸᆅগǖఇెࢅຕጴాࢃ‫ۉ‬ᇸ (VDD)ᅜतຕጴ๼෇/๼‫؜‬থ੨‫ۉ‬ᇸ(VIO)ăVIO੗ᅜᇑ1.8 V዁VDD‫ڦྷݔ‬ඪࢆஇड኱থথ੨ăྺ३ณ໯Ⴔ‫ۉڦ‬ᇸLj VIOࢅVDDᆅগ੗ᅜ૶ሞᅃഐăAD7682/AD7689ዐVIOࢅ VDD‫ۉڦ‬ᇸ้Ⴞ࿮࠲ăُྔLjኄၵഗॲሞ࢔੻‫ڦ‬ೕ୲‫ྷݔ‬ ా‫ۉܔ‬ᇸՎࣅ‫׉ݥ‬փ௺ߌLjස཮34໯๖ă ‫ܔ‬ᇀ०‫ڦڇ‬ᆌᆩLjᆯᇀ߾ፕ‫گ࢔ୁۉ‬LjAD7682/AD7689੗ ᅜ኱থ֑ᆩྔևएጚ‫ۉ‬უ‫ۉ‬ୟࠃ‫ۉ‬Lj཮36ߴ‫؜‬କᅃ߲૩ ጱăएጚ‫ۉ‬უ၍ୟ੗ᅜཚࡗᅜူ‫ݛ‬๕ൻ‫ۯ‬ǖ t ኱থ֑ᆩဣཥ‫ۉ‬ᇸă t ਏᆶፁࠕ‫ୁۉ‬๼‫ీ؜‬૰‫ڦ‬एጚ‫ۉ‬უᇸLj૩ස ADR43x/ADR44xă t एጚ‫ۉ‬უ࣐؋ഗLjසAD8605‫ڪ‬Lj໲ᄺీ‫ܔ‬ဣཥ‫ۉ‬ᇸ৊ ႜ୳հLjස཮36໯๖ă 75 70 65 5V 5V 10Ω 55 5V 50 10kΩ 1μF AD8605 1μF 10μF REF 40 VDD VIO AD7689 10 1 10k 1k 100 FREQUENCY (kHz) 07353-034 35 1OPTIONAL ཮34. PSRRᇑೕ୲‫࠲ڦ‬ဣ 10,000 VDD = 5V, INTERNAL REF 1000 100 VDD = 5V, EXTERNAL REF 10 VDD = 2.5V, EXTERNAL REF 1 VIO 0.1 10 100 1k 10k SAMPLING RATE (SPS) 100k 1M 07353-040 0.010 0.001 REFERENCE BUFFER AND FILTER. ཮36. ᆌᆩ‫ۉ‬ୟ๖૩ AD7682/AD7689ሞ௅߲ገ࣑঩܎঳ຐ้ጲ‫܏࠲ۯ‬LjᅺُLj ߾ፕ‫ࡼࠀࢅୁۉ‬ᇑ֑ᄣ໏୲‫ׯ‬၍ႠԲ૩࠲ဣăኄ๑‫޿ڥ‬ഗ ॲ‫׉ݥ‬๢ࢇ‫֑گ‬ᄣ໏୲)ฯ዁बࢍጦ*ࢅ‫ڦۉࠃ׾ۉ‬ᆌᆩă OPERATING CURRENT (μA) 0.1μF 1 45 30 0.1μF ཮35. ߾ፕ‫ୁۉ‬ᇑ֑ᄣ໏୲‫࠲ڦ‬ဣ Rev. B | Page 22 of 32 07353-035 PSSR (dB) 60 AD7682/AD7689  ຕጴথ੨! AD7682/AD7689ದ ᆶ ᅃ ߲ ० ‫ ڦ ڇ‬4၍ থ ੨ Lj ᇑ SPIĂ MICROWIRE™Ă QSPI™Ă ຕ ጴ ዷ ऐ ࢅ DSPग़ ඹ Lj ૩ ස Blackfin® ADSP-BF53xĂSHARC®ĂADSP-219xࢅADSP-218xă থ੨๑ᆩCNVĂDINĂSCKࢅSDO႑ࡽLjᆩᇀഔ‫ۯ‬ገ࣑‫ڦ‬ CNVᇑ࣮‫้܁‬Ⴞ࿮࠲Ljኄሞ‫گ‬۶‫֑ۯ‬ᄣईཞօ֑ᄣᆌᆩዐ ࢔ᆶᆩă ᅃ߲14࿋स٪ഗCFG[13:0]ᆩᇀದዃADC‫ڦ‬ገ࣑ཚ‫ڢ‬Ăएጚ ‫ۉ‬უᇸ჋ስࢅഄ໲ᇮॲLjၘ൧֖९“ದዃस٪ഗLjCFG”և ‫ݴ‬ă ‫ړ‬CNVྺ‫ۉگ‬ೝ้Lj‫܁‬ൽ/ႀ෇੗ᅜ݀ิሞገ࣑঩܎Ă֑ ण঩܎ᅜतገ࣑ඇ‫֑)ײ‬णेገ࣑*Ljၘ९ᅜူ߳և‫ݴ‬ă CFGጴሞമ14߲SCKฉืᄂ߸ႎLjገ࣑঳ࡕሞമ15߲)සࡕ ჋ስକ‫ݏ‬஬ఇ๕Ljሶྺ‫ڼ‬16߲*SCKူইᄂ๼‫؜‬ăසࡕ๑ీ କCFG࣮‫܁‬Ljሶ࣏Ⴔᄲ14߲SCKူইᄂᅜ๼‫؜‬ᇑገ࣑঳ࡕ ၎࠲‫ڦ‬CFGጴLjCFG‫ڦ‬MSBথሞገ࣑঳ࡕ‫ڦ‬LSBኮࢫă ླྀ४๑ᆩ‫૶ݥ‬ჄSCK้ዓLjᅺྺഗॲཚࡗCNVྺ‫ۉگ‬ೝઠ ჋ስLjSCKᅃ๑ీ৽ਸ๔ႀ෇ႎ‫ڦ‬ದዃጴժ๼‫؜‬ຕ਍ă ൩ጀᅪLjሞူ௬߳և‫ݴ‬ዐLj้Ⴞ཮՗๖ገ࣑೺क़‫ڦ‬ຕጴऄ ‫)ۯ‬SCKĂCNVĂDINĂSDO*ă‫ڍ‬๟Ljᆯᇀ੗ీ݀ิႠీ ই‫گ‬൧઄Ljຕጴऄ‫ۯ‬ኻᆌ݀ิሞҾඇ‫ڦ‬ຕ਍‫܁‬ൽ/ႀ෇้क़ )tDATADžኮമǗAD7682/AD7689༵ࠃକৰ‫ۉٱ‬ୟLj੗ᅜၯኟ ُ้क़ా‫ٱڦ‬ဃ࿋ăٗtDATA‫ڟ‬tCONV‫้ڦ‬क़ాሶփࣷ৊ ႜৰ‫ٱ‬Ljገ࣑঳ࡕ੗ీࣷԥ೦࣋ăᆩࢽᆌሞtDATAኮമದ ዃAD7682/AD7689ժഔ‫ݏۯ‬஬ኸ๖)සႴᄲ*ăSCKईDINሞ ֑ᄣ้ਗ਼޹ৎሂദ้Ljᄺ੗ీࣷ೦֑࣋ᄣăᅺُLjሞCNV ฉืᄂ‫ڦ‬ኮമ‫ٷ‬ሀ20 nsࢅኮࢫ10 nsLjॺᅱ๑ຕጴᆅগԍ‫׼‬ ҾৢǗኻᄲ੗ీLj৽ᆌ๑ᆩ‫૶ݥ‬ჄSCK้ዓLjՆ௨യሞ‫ڦ‬ Ⴀీই‫گ‬࿚༶ă ገ࣑೺क़‫܁‬ൽ/ႀ෇Lj੺໏ዷऐ ‫ړ‬ሞገ࣑(n)೺क़ኴႜ‫܁‬ൽ/ႀ෇้Ljገ࣑঳ࡕ๟ฉᅃْ(n− 1)ገ࣑‫ڦ‬঳ࡕLjႀ෇CFGस٪ഗሶ๟ኍ‫ူܔ‬ᅃْ(n+1)֑ण ࢅገ࣑ă CNVՎྺߛ‫ۉ‬ೝᅜഔ‫ۯ‬ገ࣑ࢫLjՂႷ๑ഄምՎྺ‫ۉگ‬ೝLj ᅜሎႹሞገ࣑೺क़ኴႜ‫܁‬ൽ/ႀ෇ă‫܁‬ൽ/ႀ෇‫ڦ‬পኹ้क़ ྺtDATALjُ้क़‫܌׉ݥ‬LjᅺُዷऐՂႷ๑ᆩ੺໏SCK้ ዓă ໯Ⴔ‫ڦ‬SCKೕ୲੗ཚࡗူ๕ऺ໙ǖ tDATAᇑtCONVኮक़‫้ڦ‬क़ྺҾඇ้क़Lj೺क़փᆌ݀ิຕጴऄ ‫ۯ‬Lj‫ޏ‬ሶࣷ೦࣋௺ߌ‫ڦ‬࿋ಒ܏ă ገ࣑ࢫ‫܁‬ൽ/ႀ෇Ljඪࢆ໏‫ڦ܈‬ዷऐ ‫ړ‬ሞገ࣑ኮࢫई֑ण঩܎(n)ኴႜ‫܁‬ൽ/ႀ෇้Ljገ࣑঳ࡕ ๟ฉᅃْ(n−1)ገ࣑‫ڦ‬঳ࡕLjႀ෇ሶ๟ኍ‫ူܔ‬ᅃْ(n+1)֑ णă ‫ܔ‬ᇀፌߛཾུ໏୲Ljྸᅃ‫้ڦ‬क़၌዆๟‫܁‬ൽ/ႀ෇ᆌ݀ิሞ tACQ)ፌ‫้*܌‬क़ాă‫ܔ‬ᇀড஥‫ུཾڦ‬໏୲Lj้क़၌዆ᆯᆩࢽ ᄲ൱‫ུཾڦ‬໏୲ਦۨLjዷऐ੗ᅜᅜඪࢆ໏‫܈‬ሏႜăᅺُLj ‫ܔ‬ᇀড஥‫ڦ‬ዷऐLjຕ਍‫ݡ‬࿚ՂႷ݀ิሞ֑ण঩܎ă ገ࣑ඇ‫܁ײ‬ൽ0ႀ෇Ljඪࢆ໏‫ڦ܈‬ዷऐ! ‫ړ‬ሞገ࣑ඇ‫ײ‬ኴႜ‫܁‬ൽ/ႀ෇้Ljຕ਍‫ݡ‬࿚ਸ๔ᇀ‫ړ‬മ֑ण (n)঩܎Ljժჽฦ዁ገ࣑(n)঩܎ăገ࣑঳ࡕ๟ฉᅃْ(n−1) ገ࣑‫ڦ‬঳ࡕLjႀ෇CFGस٪ഗሶ๟ኍ‫ူܔ‬ᅃْ(n+1)֑णࢅ ገ࣑ă ᇑ ገ ࣑ ೺ क़ ‫ ܁‬ൽ /ႀ ෇ ၎ ຼ Lj ‫ ܁‬ൽ /ႀ ෇ ‫ ڦ‬প ኹ ้ क़ ྺ tDATAă‫ܔ‬ᇀፌߛཾུ໏୲Ljྸᅃ‫้ڦ‬क़၌዆๟‫܁‬ൽ/ႀ෇ᆌ ݀ิሞtACQ + tDATA้क़ాă ‫ܔ‬ᇀড஥‫ུཾڦ‬໏୲Lj้क़၌዆ᆯᆩࢽᄲ൱‫ུཾڦ‬໏୲ਦ ۨLjዷऐ੗ᅜᅜඪࢆ໏‫܈‬ሏႜăᇑ֑ण೺क़‫܁‬ൽ/ႀ෇၎ ຼLj‫ܔ‬ᇀড஥‫ڦ‬ዷऐLjຕ਍‫ݡ‬࿚ՂႷ݀ิሞ֑ण঩܎Lj੗ ᅜჽฦ዁ገ࣑঩܎ă ൩ጀᅪLjገ࣑ඇ‫ڦײ‬ຕ਍‫ݡ‬࿚ᄲ൱ॽCNVൻ‫ۯ‬዁ߛ‫ۉ‬ೝᅜ ഔ‫ۯ‬ႎ‫ڦ‬ገ࣑LjCNVྺߛ‫ۉ‬ೝ้փሎႹ৊ႜຕ਍‫ݡ‬࿚ăᅺ ُLj๑ᆩኄዖ‫้݆ݛ‬LjዷऐՂႷኴႜଇْ཭݀ຕ਍‫ݡ‬࿚ă ದዃस٪ഗLjCFG AD7682/AD7689૧ᆩᅃ߲14࿋ದዃस٪ഗ)CFG[13:0]Ljၘ ९՗10*ದዃ๼෇Ă‫ځ‬ገ࣑ཚ‫ڢ‬Ă‫ڇ‬ट‫୳ۅ‬հഗ‫੻ټ‬Ăएጚ ‫ۉ‬უᇸࢅཚ‫ڢ‬ႾଚഗăCFGस٪ഗཚࡗ14߲SCKฉืᄂ໮ ٪ᇀDINฉ)MSBᆫံ*ăCFG߸ႎᇑՉᄂ၎࠲LjሎႹ๑ᆩᅴ օईཞօዷऐă Rev. B | Page 23 of 32 AD7682/AD7689  t t t t t ੗ᅜሞገ࣑೺क़Ă֑ण೺क़ई֑ण/ገ࣑ඇ‫ײ‬ႀ෇޿स٪ ഗLjस٪ഗ߸ႎሶ݀ิሞገ࣑঳ຐ้LjtCONV(ፌ‫ٷ‬ኵ)ăႀ ෇CFGस٪ഗ้ጺ๟٪ሞᅃ߲ศ‫܈‬ჽ‫׿‬ă൩ጀᅪLjฉ‫้ۉ‬ CFGस٪ഗ࿄ۨᅭLjႴᄲଇْჰገ࣑ᅜ߸ႎस٪ഗăැᄲ ᇨेሜCFGस٪ഗྺ߾‫׍‬ยዃLjᆌ๑DIN‫ت‬ᇀߛ‫ۉ‬ೝժԍ ‫׼‬ଇْገ࣑‫้ڦ‬क़ăኄᄣLjCFG[13:0] = 0x3FFFLjُ้Lj AD7682/AD7689‫ڦ‬ยዃසူǖ 13 CFG 12 INCC 11 INCC 10 INCC 9 INx 8 INx IN[7:0]‫ڇ‬टႠLjᅜGNDྺ֖੊LjӀຩႾࠓ‫ׯ‬Ⴞଚ ‫ڇ‬ट‫୳ۅ‬հഗ๑ᆩඇ‫੻ټ‬ ্ᆩాևएጚ‫ۉ‬უᇸ/࿒‫ߌد܈‬ഗLj๑ీ࣐؋ഗ ๑ీాևႾଚഗ փ࣮‫܁‬CFGस٪ഗ ՗10ၘဦ௮ຎକದዃस٪ഗ߳࿋‫ీࠀڦ‬ă߸‫ܠ‬႑တ֖९“߾ ፕᇱ૙”և‫ݴ‬ă 7 INx 6 BW 5 REF 4 REF 3 REF 2 SEQ ՗10. ದዃस٪ഗ௮ຎ ࿋ [13] ఁ‫!׬‬ CFG [12:10] INCC ௮ຎ ದዃ߸ႎă 0 = ԍ‫ړ׼‬മ‫ڦ‬ದዃยዃă 1 = ޮ߃स٪ഗ‫ాڦ‬ඹă ๼෇ཚ‫ڢ‬ದዃă჋ስ࿁ມटႠĂ࿁ֶ‫ݴ‬Ăֶ‫ܔݴ‬Ă‫܋ڇ‬ई࿒‫ߌد܈‬ഗă֖९Đ๼෇ದዃđև‫ݴ‬ă! ࿋12 0 0 0 1 1 1 [9:7] ԡ INx ࿋11 0 1 1 0 1 1 ࿋10 X1 0 1 X1 0 1 ࠀీ ມटႠֶ‫ܔݴ‬ǗINx −ᅜVREF/2 ± 0.1 Vྺ֖੊ă ມटႠǗINx −ᅜCOM = VREF/2 ± 0.1 Vྺ֖੊ă ࿒‫ߌد܈‬ഗă ‫ڇ‬टႠֶ‫ܔݴ‬ǗINx −ᅜGND ± 0.1 Vྺ֖੊ă ‫ڇ‬टႠǗINx ᅜCOM = GND ± 0.1 Vྺ֖੊ă ‫ڇ‬टႠǗInxᅜ GNDྺ֖੊ă ᅜܾ৊዆‫ݛ‬๕჋ስ๼෇ཚ‫ڢ‬ă! AD7682 ࿋9 X1 X1 X1 X1 [6] BW [5:3] REF [2:1] [0] 1 SEQ RB ࿋8 0 0 1 1 AD7689 ࿋7 0 1 0 1 ཚ‫ڢ‬ IN0 IN1 IN2 IN3 ࿋9 0 0 … 1 ࿋ 8 0 0 … 1 ࿋ 7 0 1 … 1 ཚ‫ڢ‬ IN0 IN1 … IN7 ჋ስ‫گ‬ཚ୳հഗ‫੻ټڦ‬ă֖९“੗჋‫گ‬ཚ୳հഗ”և‫ݴ‬ă 0 = ¼‫੻ټ‬Lj๑ᆩ޹े‫ۉ૴ز‬ፆ੗৊ᅃօ၌዆ሯำ‫੻ټ‬ăፌߛཾུ໏୲ᄺՂႷই዁¼ă 1 = ඇ‫੻ټ‬ă एጚ‫ۉ‬უᇸ0࣐؋ഗ჋ስă჋ስాևĂྔևईྔև࣐؋एጚ‫ۉ‬უLjժ๑ీೌా࿒‫ߌد܈‬ഗă ֖९Đएጚ‫ۉ‬უ๼‫؜‬0๼෇đև‫ݴ‬ă ࿋ 5 0 0 0 0 1 1 ࿋ 4 0 0 1 1 1 1 ࿋2 0 0 1 1 ࿋1 0 1 0 1 ࿋ 3 0 1 0 1 0 1 ࠀీ! ాևएጚ‫ۉ‬უᇸLjREF = 2.5 V๼‫؜‬ă ాևएጚ‫ۉ‬უᇸLjREF = 4.096 V๼‫؜‬ă ྔևएጚ‫ۉ‬უᇸLj࿒‫ߌد܈‬ഗ๑ీă ྔևएጚ‫ۉ‬უᇸLjాև࣐؋ഗLj࿒‫ߌد܈‬ഗ๑ీă ྔևएጚ‫ۉ‬უᇸLj࿒‫ߌد܈‬ഗ্ᆩă ྔևएጚ‫ۉ‬უᇸLjాև࣐؋ഗLj࿒‫ߌد܈‬ഗ্ᆩă ཚ‫ڢ‬ႾଚഗăሎႹᅜIN0‫ڟ‬IN[7:0]‫ݛڦ‬๕෢௮ཚ‫ڢ‬ă֖९“ཚ‫ڢ‬Ⴞଚഗ”և‫ݴ‬ă ࠀీ! ্ᆩႾଚഗă Ⴞଚ෢௮೺क़߸ႎದዃă ෢௮IN0዁IN[7:0])ᆯCFG[9:7]ยዃ*Lj඗ࢫ෢௮࿒‫܈‬ă ෢௮IN0዁IN[7:0])ᆯCFG[9:7]ยዃ*ă ࣮‫܁‬CFGस٪ഗă 0 = ຕ਍঳ຐ้࣮‫ړ܁‬മದዃă 1 = փ࣮‫܁‬ದዃాඹă x = ඪᅪă Rev. B | Page 24 of 32 1 SEQ 0 RB AD7682/AD7689  ࿮‫ݏ‬஬ኸ๖ഗ‫ڦ‬ཚᆩ้Ⴞ! ‫ ړ‬CNVሞ EOCኮ ࢫ Վ ྺ ‫ ۉ گ‬ೝ ้ Lj SDOٗ ߛ ፆ ༀ Վ ྺ MSBăSCKူইᄂ๼‫ٗ؜‬MSB − 1ਸ๔‫߲߳ڦ‬࿋ă ཮37၂๖କ໯ᆶෙዖఇ๕‫้ڦ‬Ⴞǖገ࣑೺क़‫܁‬ൽ/ႀ෇ (RDC)Ă ገ ࣑ ࢫ ‫ ܁‬ൽ /ႀ ෇ (RAC)ࢅ ገ ࣑ ඇ ‫ ܁ ײ‬ൽ /ႀ ෇ (RSC)ă൩ጀᅪLjCFGࢅຕ਍࣮‫ڦ܁‬჋ཚ਩ྺገ࣑঳ຐ (EOC)ăገ࣑঳ຐ้LjසࡕCNVྺߛ‫ۉ‬ೝLjሶ‫ݏ‬஬ኸ๖ഗ ্ᆩă සࡕ๑ᆩSPILjሶߵ਍้ዓटႠ(CPOL)ࢅ้ዓ၎࿋(CPHA) ยዃ‫ڦ‬փཞLjSCK੣ှ้੗ᅜྺߛ‫ۉ‬ೝई‫ۉگ‬ೝă०‫ڦڇ‬ ঴ਦӸ݆๟ସCPOL = CPHA = 0Ljස཮37໯๖Lj๑SCK੣ှ ้ྺ‫ۉگ‬ೝă සമ࿔‫“ڦ‬ຕጴথ੨”և‫ݴ‬໯ຎLjຕ਍‫ݡ‬࿚‫ڦ‬পኹ้क़ྺҾ ඇ‫ڦ‬ຕ਍‫܁‬ൽ/ႀ෇้क़tDATAăසࡕுᆶሞEOCኮമႀ෇ྜ ኝ‫ڦ‬CFGጴLjሶCFGጴԥ۪ചLj‫ړ‬മದዃධ඗ᆶၳăසࡕ ுᆶሞEOCኮമྜඇ‫؜܁‬ገ࣑঳ࡕLjሶገ࣑঳ࡕ۪฿Lj ADCᅜ‫ړ‬മገ࣑‫ڦ‬MSB߸ႎSDOăၘဦ้Ⴞ֖९཮40ࢅ཮ 41Ljഄዐ၂๖କገ࣑ඇ‫܁ײ‬ൽ/ႀ෇‫ڦ‬໯ᆶ้ႾဦবLjԈઔ ॺ૬Ăԍ‫ࢅ׼‬SCKă SOC tCYC POWER UP tCONV CONVERSION (n – 2) UNDEFINED PHASE ࿮ஃࢆዖ‫܁‬ൽ/ႀ෇ఇ๕Ljฉ‫ۉ‬ኮࢫ‫ڦ‬മෙْገ࣑঳ࡕ‫ۼ‬๟ ࿮ᅪᅭ‫ڦ‬LjᅺྺᆶၳCFG኱‫ڼڟ‬2߲EOCኮࢫ֍‫؜‬၄Ljᅺ ܸႴᄲ2ْჰገ࣑ăཞᄣLjසࡕጒༀऐሞฉ‫ۉ‬ጒༀ೺क़ႀ ෇CFG)සRDC໯๖*Ljሶူᅃ߲঩܎Ⴔᄲዘႎႀ෇CFGस ٪ഗă൩ጀᅪLjሞ঩܎(n−1)ႀ෇CFGस٪ഗ้Lj‫ڼ‬ᅃ߲ᆶ ၳຕ਍‫؜‬၄ሞ(n+1)঩܎ă EOC ACQUISITION (n – 1) UNDEFINED EOC EOC tDATA CONVERSION (n – 1) UNDEFINED ACQUISITION (n) CONVERSION (n) EOC ACQUISITION (n + 1) CONVERSION (n + 1) ACQUISITION (n + 2) NOTE 1 CNV DIN CFG (n) XXX CFG (n + 1) CFG (n + 2) RDC SDO SCK DATA (n – 3) XXX MSB XXX 1 MSB XXX DATA (n – 2) XXX 16 1 DATA (n – 1) XXX 16 MSB (n) 16 1 MSB (n + 1) DATA (n) 16 1 NOTE 2 NOTE 1 CNV CFG (n) DIN RAC SDO SCK CFG (n + 1) DATA (n – 2) XXX 16 1 CFG (n + 2) CFG (n + 3) DATA (n) DATA (n + 1) DATA (n – 1) XXX 1 16 1 1 16 NOTE 2 NOTE 1 CNV RSC DIN CFG (n) SDO DATA (n – 2) XXX SCK 1 n CFG (n) DATA (n – 2) XXX n+1 16 1 CFG (n + 1) CFG (n + 1) DATA (n – 1) XXX DATA (n – 1) XXX n n+1 16 1 CFG (n + 2) CFG (n + 2) CFG (n + 3) DATA (n) DATA (n) DATA (n + 1) n n+1 16 1 n NOTES 1. CNV MUST BE HIGH PRIOR TO THE END OF CONVERSION (EOC) TO AVOID THE BUSY INDICATOR. 2. A TOTAL OF 16 SCK FALLING EDGES ARE REQUIRED TO RETURN SDO TO HIGH-Z. IF CFG READBACK IS ENABLED, A TOTAL OF 30 SCK FALLING EDGES IS REQUIRED TO RETURN SDO TO HIGH-Z. ཮37. ࿮‫ݏ‬஬ኸ๖ഗ‫ڦ‬AD7682/AD7689ཚᆩথ੨้Ⴞ Rev. B | Page 25 of 32 07353-043 NOTE 2 AD7682/AD7689  ࡤ‫ݏ‬஬ኸ๖ഗ‫ڦ‬ཚᆩ้Ⴞ! ؋Ljܸኻ݀ໃ16߲SCK้Lj৽ࣷ݀ิኄዖ൧઄ǗᅺُLSB ධ඗٪ሞăAD7682/AD7689‫ڦ‬ገ࣑ሯำྺ4 LSB‫ރރ‬ኵ)ई ߸‫*ٷ‬LjᅺُLSBሞ50%‫้ڦ‬क़ాྺ‫ۉگ‬ೝጒༀă‫ܔ‬ᇀSPIথ ੨LjSPIዷऐႴᄲ24߲SCKஞ؋Ljईኁ੗ᅜ๑ᆩQSPIথ੨ᅜ Պ‫ײ‬17߲SCKஞ؋ă ཮38၂๖କ໯ᆶෙዖఇ๕‫้ڦ‬Ⴞǖገ࣑೺क़‫܁‬ൽ/ႀ෇ (RDC)Ă ገ ࣑ ࢫ ‫ ܁‬ൽ /ႀ ෇ (RAC)ࢅ ገ ࣑ ඇ ‫ ܁ ײ‬ൽ /ႀ ෇ (RSC)ă൩ጀᅪLjCFGࢅຕ਍࣮‫ڦ܁‬჋ཚ਩ྺገ࣑঳ຐ (EOC)ăසമ࿔໯ຎLjຕ਍‫ݡ‬࿚‫ڦ‬পኹ้क़ྺҾඇ‫ڦ‬ຕ਍ ‫܁‬ൽ/ႀ෇้क़tDATAăසࡕுᆶሞEOCኮമႀ෇ྜኝ‫ڦ‬ CFGጴLjሶCFGጴԥ۪ചLj‫ړ‬മದዃධ඗ᆶၳă සࡕ๑ᆩSPILjሶߵ਍CPOLࢅCPHAยዃ‫ڦ‬փཞLjSCK੣ ှ้੗ᅜྺߛ‫ۉ‬ೝई‫ۉگ‬ೝă०‫ڦڇ‬঴ਦӸ݆๟ସCPOL = CPHA = 1)཮ዐ࿄၂๖*Lj๑SCK੣ှ้ྺߛ‫ۉ‬ೝă ገ࣑঳ຐ้LjසࡕCNVྺ‫ۉگ‬ೝLjሶ‫ݏ‬஬ኸ๖ഗ๑ీăُ ྔLjྺኟඓׂิ‫ݏ‬஬ኸ๖LjዷऐՂႷ዁ณዃ࿋17߲SCKူ ইᄂ֍ీ๑SDO‫ߛ࣮ݓ‬ፆༀLjᅺྺSDOฉ‫ڦ‬ፌࢫᅃ࿋ධ඗ ᆶၳăᇑ“࿮‫ݏ‬஬ኸ๖ഗ‫ڦ‬ཚᆩ้Ⴞ”և‫ݴ‬໯ຎ‫ڦ‬൧઄փ ཞLjසࡕுᆶሞEOCኮമྜඇ‫؜܁‬ገ࣑঳ࡕLj๼‫ڦ؜‬ፌࢫ ᅃ࿋ධ඗٪ሞăසࡕُ࿋ྺ‫ۉگ‬ೝLjሶ࿮ׂ݆ิ‫ݏ‬஬႑ࡽ ኸ๖Ljᅺྺ‫ݏ‬஬႑ࡽኸ๖‫ิׂڦ‬Ⴔᄲߛፆༀईᅃ߲ߛ‫گڟ‬ ‫ڦ‬࿋ገ࣑ă૩සLj‫ړ‬ᅃ߲SPIዷऐ๴၌ᇀ8࿋ई16࿋཭݀ஞ START OF CONVERSION (SOC) tCYC POWER UP PHASE tCONV CONVERSION (n – 2) UNDEFINED ࿮ஃࢆዖ‫܁‬ൽ/ႀ෇ఇ๕Ljฉ‫ۉ‬ኮࢫ‫ڦ‬മෙْገ࣑঳ࡕ‫ۼ‬๟ ࿮ᅪ‫ڦ‬LjᅺྺᆶၳCFG኱‫ڼڟ‬2߲EOCኮࢫ֍‫؜‬၄Ljᅺܸ Ⴔᄲ2ْჰገ࣑ăཞᄣLjසࡕጒༀऐሞฉ‫ۉ‬ጒༀ೺क़ႀ෇ CFG)සRDC໯๖*Ljሶူᅃ߲঩܎Ⴔᄲዘႎႀ෇CFGस٪ ഗă൩ጀᅪLjሞ঩܎(n−1)ႀ෇CFGस٪ഗ้Lj‫ڼ‬ᅃ߲ᆶၳ ຕ਍‫؜‬၄ሞ(n+1)঩܎ă EOC EOC EOC EOC tDATA CONVERSION (n – 1) UNDEFINED ACQUISITION (n – 1) UNDEFINED CONVERSION (n) ACQUISITION (n) CONVERSION (n + 1) ACQUISITION (n + 1) ACQUISITION (n + 2) NOTE 1 CNV DIN XXX CFG (n) CFG (n + 1) CFG (n + 2) RDC DATA (n – 3) XXX SDO SCK 1 DATA (n – 2) XXX 1 17 DATA (n – 1) XXX 1 17 DATA (n) 1 17 17 NOTE 2 CNV RAC NOTE 1 DIN CFG (n) SDO SCK CFG (n + 1) 1 17 1 CFG (n + 2) DATA (n – 1) XXX DATA (n – 2) XXX CFG (n + 3) DATA (n) 1 17 DATA (n + 1) 1 17 NOTE 2 RSC NOTE 1 DIN DATA (n – 2) XXX SDO SCK 1 n CFG (n + 2) CFG (n + 1) CFG (n) DATA (n – 1) XXX DATA (n – 2) XXX n+1 17 1 n DATA (n – 1) XXX n+1 17 1 NOTES 1. CNV MUST BE LOW PRIOR TO THE END OF CONVERSION (EOC) TO GENERATE THE BUSY INDICATOR. 2. A TOTAL OF 17 SCK FALLING EDGES ARE REQUIRED TO RETURN SDO TO HIGH-Z. IF CFG READBACK IS ENABLED, A TOTAL OF 31 SCK FALLING EDGES IS REQUIRED TO RETURN SDO TO HIGH-Z. ཮38. ࡤ‫ݏ‬஬ኸ๖ഗ‫ڦ‬AD7682/AD7689ཚᆩথ੨้Ⴞ Rev. B | Page 26 of 32 DATA (n) DATA (n) NOTE 2 n CFG (n + 3) n+1 17 DATA (n + 1) 1 07353-044 CNV AD7682/AD7689  ཚ‫ڢ‬Ⴞଚഗ! ഗ‫ڦ‬ገ࣑ඇ‫܁ײ‬ൽ/ႀ෇”և‫ݴ‬ăᄺ੗ᅜሞ๑ీ‫ݏ‬஬ኸ๖ഗ ‫ڦ‬൧઄ူ๑ᆩႾଚഗLj้Ⴞၘ൧֖९“ࡤ‫ݏ‬஬ኸ๖ഗ‫ڦ‬ཚ ᆩ้Ⴞ”և‫ݏࡤ“ࢅݴ‬஬ኸ๖ഗ‫ڦ‬ገ࣑ඇ‫܁ײ‬ൽ/ႀ෇”և ‫ݴ‬ă AD7682/AD7689Ԉઔᅃ߲ཚ‫ڢ‬ႾଚഗLj੗ᆩᇀዘް෢௮ཚ ‫ڢ‬ăඓۨႾଚ‫ڦ‬ፌࢫᅃ߲ཚ‫ࢫڢ‬Ljᅜ‫܋ڇ‬ईֶ‫ڦܔݴ‬ႚ๕ ෢௮ཚ‫ڢ‬Lj੗ᅜԈઔईփԈઔ࿒‫ߌد܈‬ഗă ႾଚഗٗIN0ਸ๔LjᅜCFG[9:7]໯ยዃ‫ڦ‬IN[7:0]঳ຐă‫ܔ‬ᇀ ֶ‫ܔݴ‬ཚ‫ڢ‬Ljཚ‫ڢ‬ದ‫ܔ‬ൽਦᇀCFG[9:7]ዐยዃ‫ڦ‬ፌࢫᅃ߲ ཚ‫ڢ‬ă൩ጀᅪLjሞႾଚഗఇ๕ူLjֶ‫ܔݴ‬ཚ‫ڦڢ‬ኟ๼෇๔ ዕྺ౾ຕཚ‫)ڢ‬IN0ĂIN2ĂIN4ĂIN6*Lj޶๼෇๔ዕྺആຕ ཚ‫)ڢ‬IN1ĂIN3ĂIN5ĂIN7*ă૩සLjසࡕCFG[9:7] = 110ई 111Ljሶ෢௮໯ᆶֶ‫ܔݴ‬ཚ‫้ڢ‬Ljኟ๼෇ྺIN0ĂIN2ĂIN4 ࢅIN6ă ‫ܔ‬ᇀႾଚഗ֡ፕLjᆌሞฉ‫(ڦࢫۉ‬n−1)঩܎ยዃCFGस٪ ഗăሞ঩܎(n)LjႾଚഗยዃิၳժ֑णIN0ă‫ڼ‬ᅃ߲ᆶၳ ገ࣑঳ࡕሞ঩܎(n+1)੗ᆩă‫ܔ‬CFG[9:7]໯ยዃ‫ڦ‬ፌࢫᅃ߲ ཚ‫ڢ‬ኴႜገ࣑ࢫLj๼‫ా؜‬և࿒‫ߌد܈‬ഗຕ਍(සࡕ๑ీ)Lj ඗ࢫምْ֑णIN0ă ๖૩! ໯ᆶཚ‫ڢ‬਩ԥದዃྺ‫ڇ‬टႠఇ๕ժᅜGNDྺ֖੊LjԈઔా և࿒‫ߌد܈‬ഗLjሶႾଚഗӀᅜူຩႾ෢௮ཚ‫ڢ‬ǖ CFG[2:1]ᆩᇀ๑ీႾଚഗăCFGस٪ഗ߸ႎࢫLjሞ‫؜܁‬࿋ 13‫ڦ‬ຕ਍้DINՂႷ‫ت‬ᇀ‫ۉگ‬ೝLj‫ޏ‬ሶCFGस٪ഗࣷምْ ਸ๔߸ႎă IN0, IN1, IN2, IN3, IN4, IN5, IN6, IN7, TEMP, IN0, IN1, IN2, … ൩ጀᅪLjᅜႾଚ‫ݛ‬๕߾ፕ้LjCFGस٪ഗ‫ڦ‬గၵ࿋੗ᅜ߀ Վă඗ܸLjසࡕ߸߀CFG[11])ֶ‫ܔݴ‬ई‫܋ڇ‬ཚ‫*ڢ‬ईCFG [9:7])Ⴞଚዐ‫ڦ‬ፌࢫᅃ߲ཚ‫*ڢ‬LjႾଚॽዘႎ‫؛‬๔ࣅLjժሞ CFGस٪ഗ߸ႎࢫገ࣑IN0)ईIN0/IN1ֶ‫*ܔݴ‬ă සࡕ๟ֶ‫ܔݴ‬ཚ‫ڢ‬ժ๑ీాև࿒‫ߌد܈‬ഗLjሶႾଚഗӀᅜ ူຩႾ෢௮ཚ‫ڢ‬ǖ IN0, IN2, IN4, IN6, TEMP, IN0, … ཮39ၘဦ၂๖କ࿮‫ݏ‬஬ኸ๖ഗ‫ڦ‬໯ᆶෙዖఇ๕‫้ڦ‬Ⴞă߸ ‫ܠ‬႑တ֖९“࿮‫ݏ‬஬ኸ๖ഗ‫ڦ‬ཚᆩ้Ⴞ”և‫“ࢅݴ‬࿮‫ݏ‬஬ኸ๖ SOC tCYC POWER UP EOC tCONV CONVERSION (n – 2) UNDEFINED PHASE ൩ጀᅪLjIN1ĂIN3ĂIN5ࢅIN7ᅜ֖੊‫ں‬ईVREF/2ྺ֖ ੊Ljၘ൧֖९“๼෇ದዃ”և‫ݴ‬ă ACQUISITION (n – 1) UNDEFINED EOC EOC tDATA CONVERSION (n – 1) UNDEFINED ACQUISITION (n), IN0 CONVERSION (n), IN0 EOC ACQUISITION (n + 1), IN1 CONVERSION (n + 1), IN1 ACQUISITION (n + 2), IN2 NOTE 1 CNV DIN CFG (n) XXX RDC SDO SCK DATA (n – 3) XXX MSB XXX 1 MSB XXX DATA (n – 2) XXX 1 16 2 DATA (n – 1) XXX 16 MSB IN0 16 1 MSB IN1 DATA IN0 16 1 NOTE 2 CNV CFG (n) DIN RAC DATA (n – 2) XXX SDO SCK 1 DATA (n – 1) XXX 16 1 DATA IN0 16 1 DATA IN1 1 16 NOTE 2 CNV DIN CFG (n) SDO DATA (n – 2) XXX SCK 1 n CFG (n) DATA (n – 2) XXX n+1 16 DATA (n – 1) XXX 1 n DATA (n – 1) XXX n+1 16 DATA IN0 DATA IN0 1 n n+1 16 DATA IN1 1 n NOTE 2 NOTES 1. CNV MUST BE HIGH PRIOR TO THE END OF CONVERSION (EOC) TO AVOID THE BUSY INDICATOR. 2. A TOTAL OF 16 SCK FALLING EDGES ARE REQUIRED TO RETURN SDO TO HIGH-Z. IF CFG READBACK IS ENABLED, A TOTAL OF 30 SCK FALLING EDGES IS REQUIRED TO RETURN SDO TO HIGH-Z. ཮39. ࿮‫ݏ‬஬ኸ๖ഗ‫ڦ‬ཚᆩཚ‫ڢ‬Ⴞଚഗ้Ⴞ Rev. B | Page 27 of 32 07353-046 RSC AD7682/AD7689  ‫ړ‬AD7682/AD7689૶থ‫ڟ‬ඪࢆ๑ᆩSPIĂ‫ز‬ႜ‫܋‬੨ईFPGA ‫ڦ‬ዷऐ้Lj๑ᆩُఇ๕ă૶থ཮ස཮40໯๖Lj၎ᆌ‫้ڦ‬Ⴞ ස཮41໯๖ă‫ܔ‬ᇀSPILjዷऐᆌ๑ᆩCPHA = CPOL = 0ă໯ ๖‫ڦ‬ገ࣑ඇ‫܁ײ‬ൽ/ႀ෇้ႾԈઔ“ຕጴথ੨”և‫ݴ‬໯ຎ‫ڦ‬໯ ᆶෙዖఇ๕ă‫ܔ‬ᇀُఇ๕LjዷऐՂႷߵ਍ገ้࣑क़৊ႜຕ ਍‫د‬๼ă‫ܔ‬ᇀ֑ᆩ‫ݏ‬஬ኸ๖ഗ‫ڦ‬ዐ܏ൻ‫دۯ‬๼Lj֖९“ࡤ ‫ݏ‬஬ኸ๖ഗ‫ڦ‬ገ࣑ඇ‫܁ײ‬ൽ/ႀ෇”և‫ݴ‬ă ‫؜‬၄ሞSDOฉăዷऐُ้࣏ՂႷ݀ໃCFGस٪ഗ‫ڦ‬MSB(ස ᆶՂᄲ)LjᅜՍਸ๔߸ႎCFGăሞCNVྺ‫ۉگ‬ೝ೺क़LjCFG ߸ႎࢅຕ਍࣮‫܁‬਩ࣷ݀ิăമ14߲SCKฉืᄂᆩᇀ߸ႎ CFGLjമ15߲SCKူইᄂٗMSB−1ਸ๔ደ࿋๼‫؜‬ገ࣑঳ ࡕăದዃࢅ‫܁‬ൽ‫ڦ‬၌዆๟ܾኁՂႷ݀ิሞူᅃْገ࣑‫ڦ‬ tDATA้क़๝ඁኮമăՂႷႀ෇໯ᆶ14࿋CFG[13:0]Lj‫ޏ‬ሶ ৽ࣷࢮ୼޿ኵăُྔLjසࡕுᆶሞtDATA๝ඁኮമ࣮‫܁‬16 ࿋ገ࣑঳ࡕLjገ࣑঳ࡕ৽۪ࣷ฿ă CNVฉืᄂഔ‫ۯ‬ገ࣑Ljഽ዆SDO৊෇ߛፆༀLjժࢮ୼DIN ฉ٪ሞ‫ڦ‬ຕ਍ăഔ‫ۯ‬ገ࣑ࢫLj࿮ஃCNVྺࢆጒༀLjገ࣑‫ۼ‬ ࣷኴႜ‫ྺׯྜڟ‬ኹăCNVሞҾඇ‫ڦ‬ຕ਍‫د‬๼้क़tDATAኮ മՂႷ‫ۉߛ࣮ݓ‬ೝLj඗ࢫԍ‫ۉߛ׼‬ೝ‫ڟ‬ገ้࣑क़tCONVኮ ࢫLjᅜ௨ׂิ‫ݏ‬஬႑ࡽኸ๖ă SDOຕ਍ሞSCK‫ڦ‬ฉืᄂࢅူইᄂ਩ᆶၳă໚඗ฉืᄂ੗ ᅜᆩᇀվጛຕ਍Lj‫ڍ‬๑ᆩSCKူইᄂ‫ڦ‬ຕጴዷऐీํ၄߸ ੺‫܁ڦ‬ൽ໏୲Ljኻᄲ໲ਏᆶࢇ૙‫ڦ‬ԍ‫้׼‬क़ăሞ‫ڼ‬16߲(ई ‫ڼ‬30߲)SCKူইᄂኮࢫLjईኁ‫ړ‬CNVՎྺߛ‫ۉ‬ೝ้(ᅜፌ ံ݀ิኁྺጚ)LjSDO‫ߛ࣮ݓ‬ፆༀă ገ࣑ྜ‫ࢫׯ‬LjAD7682/AD7689৊෇֑ण঩܎ࢅ࠲܏ጒༀă ‫ړ‬ዷऐሞtCONV)ፌ‫ٷ‬ኵ*ኮࢫ๑CNVՎྺ‫ۉگ‬ೝ้LjMSB සࡕ๑ీକCFG࣮‫܁‬Ljሶࣷሞገ࣑঳ࡕ‫ڦ‬LSBኮࢫᅜMSB ᆫံ‫ݛ‬๕࣮‫܁‬ᇑገ࣑঳ࡕ၎࠲‫ڦ‬CFGस٪ഗăኄዖ൧઄ ူLjጺࠌႴᄲ30߲SCKူইᄂ֍ీ๑SDO‫ߛ࣮ݓ‬ፆༀă ࿮‫ݏ‬஬ኸ๖ഗ‫ڦ‬ገ࣑ඇ‫܁ײ‬ൽ/ႀ෇ CNV SS SDO MISO DIN MOSI SCK SCK FOR SPI USE CPHA = 0, CPOL = 0. 07353-036 DIGITAL HOST AD7682/ AD7689 ཮40. ࿮‫ݏ‬஬ኸ๖ഗ‫ڦ‬AD7682/AD7689૶থ཮ tCYC > tCONV tCONV tCONV tDATA tDATA tCNVH EOC EOC RETURN CNV HIGH FOR NO BUSY RETURN CNV HIGH FOR NO BUSY CNV tACQ (QUIET TIME) CONVERSION (n – 1) tSCK tSCKH SCK 14 UPDATE (n) CFG/SDO 15 16/ 30 1 CFG LSB DIN X tEN END CFG (n) SDO LSB + 1 tDIS END DATA (n – 2) tSDIN CFG MSB X MSB tDIS 14 15 X X tHDIN CFG MSB – 1 BEGIN CFG (n + 1) tHSDO tDSDO tEN LSB 2 16/ 30 ACQUISITION (n + 1) UPDATE (n + 1) CFG/SDO SEE NOTE tCLSCK tSCKL (QUIET TIME) CONVERSION (n) ACQUISITION (n) CFG LSB tEN END CFG (n + 1) SEE NOTE MSB – 1 BEGIN DATA (n – 1) LSB + 1 tDIS NOTES 1. THE LSB IS FOR CONVERSION RESULTS OR THE CONFIGURATION REGISTER CFG (n – 1) IF 15 SCK FALLING EDGES = LSB OF CONVERSION RESULTS. 29 SCK FALLING EDGES = LSB OF CONFIGURATION REGISTER. ON THE 16TH OR 30TH SCK FALLING EDGE, SDO IS DRIVEN TO HIGH IMPENDANCE. ཮41. ࿮‫ݏ‬஬ኸ๖ഗ‫ڦ‬AD7682/AD7689‫ز‬ႜথ੨้Ⴞ Rev. B | Page 28 of 32 END DATA (n – 1) LSB tDIS 07353-037 ACQUISITION (n - 1) AD7682/AD7689  ࡤ‫ݏ‬஬ኸ๖ഗ‫ڦ‬ገ࣑ඇ‫܁ײ‬ൽ0ႀ෇! ๔߸ႎCFGăሞCNVྺ‫ۉگ‬ೝ೺क़LjCFG߸ႎࢅຕ਍࣮‫܁‬ ਩ࣷ݀ิăമ14߲SCKฉืᄂᆩᇀ߸ႎCFGस٪ഗLjമ16 ߲SCKူইᄂٗMSBਸ๔ደ࿋๼‫؜‬ገ࣑঳ࡕăದዃࢅ‫܁‬ൽ ‫ڦ‬၌዆๟ܾኁՂႷ݀ิሞူᅃْገ࣑‫ڦ‬tDATA้क़๝ඁኮ മăՂႷႀ෇໯ᆶ14࿋CFG[13:0]Lj‫ޏ‬ሶ৽ࣷࢮ୼޿ኵăُ ྔLjසࡕுᆶሞtDATA๝ඁኮമ࣮‫܁‬16࿋ገ࣑঳ࡕLjገ࣑঳ ࡕ৽۪ࣷ฿ă ‫ړ‬AD7682/AD7689૶থ‫ڟ‬ඪࢆ๑ᆩSPIĂ‫ز‬ႜ‫܋‬੨ईFPGA ժ‫ټ‬ዐ܏๼෇‫ڦ‬ዷऐ้Lj๑ᆩُఇ๕ă૶থ཮ස཮42໯ ๖Lj၎ᆌ‫้ڦ‬Ⴞස཮43໯๖ă‫ܔ‬ᇀSPILjዷऐᆌ๑ᆩCPHA = CPOL = 1ă໯๖‫ڦ‬ገ࣑ඇ‫܁ײ‬ൽ/ႀ෇้ႾԈઔ“ຕጴথ ੨և‫”ݴ‬໯ຎ‫ڦ‬໯ᆶෙዖఇ๕ă CNVฉืᄂഔ‫ۯ‬ገ࣑Ljࢮ୼DINฉ٪ሞ‫ڦ‬ຕ਍ժഽ዆SDO ৊෇ߛፆༀăഔ‫ۯ‬ገ࣑ࢫLj࿮ஃCNVྺࢆጒༀLjገ࣑‫ࣷۼ‬ ኴႜ‫ྺׯྜڟ‬ኹăCNVሞҾඇ‫ڦ‬ຕ਍‫د‬๼้क़tDATAኮമՂ Ⴗ‫ۉگ࣮ݓ‬ೝLj඗ࢫԍ‫ۉگ׼‬ೝ‫ڟ‬ገ้࣑क़tCONVኮࢫLjᅜ ׂิ‫ݏ‬஬႑ࡽኸ๖ăገ࣑ྜ‫ࢫׯ‬LjSDOٗߛፆༀՎྺ‫ۉگ‬ ೝጒༀ(ຕ਍৽Ⴣ)LjॽSDOฉઙ‫ڟ‬VIOࢫLjSDO੗ᅜᆩᇀ ዐ܏ዷऐᅜਸ๔ຕ਍‫د‬๼ă SDOຕ਍ሞSCK‫ڦ‬ฉืᄂࢅူইᄂ਩ᆶၳă໚඗ฉืᄂ੗ ᅜᆩᇀվጛຕ਍Lj‫ڍ‬๑ᆩSCKူইᄂ‫ڦ‬ຕጴዷऐీํ၄߸ ੺‫܁ڦ‬ൽ໏୲Ljኻᄲ໲ਏᆶࢇ૙‫ڦ‬ԍ‫้׼‬क़ăሞ੗჋‫ڼڦ‬ 17߲(ई‫ڼ‬31߲)SCKူইᄂኮࢫLjSDO‫ߛ࣮ݓ‬ፆༀă൩ጀ ᅪLjසࡕփ๑ᆩ੗჋‫ڦ‬SCKူইᄂLjሶ࿮݆ॠ֪‫ݏ‬஬༬ ႠLjၘ९“ࡤ‫ݏ‬஬ኸ๖ഗ‫ڦ‬ཚᆩ้Ⴞ”և‫ݴ‬ă සࡕ๑ీକCFG࣮‫܁‬Ljሶࣷሞገ࣑঳ࡕ‫ڦ‬LSBኮࢫᅜMSB ᆫံ‫ݛ‬๕࣮‫܁‬ᇑገ࣑঳ࡕ၎࠲‫ڦ‬CFGस٪ഗăኄዖ൧઄ ူLjጺࠌႴᄲ31߲SCKူইᄂ֍ీ๑SDO‫ߛ࣮ݓ‬ፆༀă ገ࣑ྜ‫ࢫׯ‬LjAD7682/AD7689৊෇֑ण঩܎ࢅ࠲܏ጒༀă ዷऐُ้ՂႷ݀ໃCFGस٪ഗ‫ڦ‬MSB(සᆶՂᄲ)LjᅜՍਸ VIO AD7682/ AD7689 DIGITAL HOST SDO MISO IRQ DIN MOSI SCK SCK 07353-038 SS CNV FOR SPI USE CPHA = 1, CPOL = 1. ཮42. ࡤ‫ݏ‬஬ኸ๖ഗ‫ڦ‬AD7682/AD7689૶থ཮ tCYC tCONV tACQ tDATA tCNVH tDATA CNV (QUIET TIME) CONVERSION (n – 1) tSCK tSCKH 15 SCK UPDATE (n) CFG/SDO 16 17/ 31 15 16 17/ 31 X X X tHDIN tSDIN X X LSB +1 END DATA (n – 2) CFG CFG MSB MSB –1 X tDIS END CFG (n) SDO 2 ACQUISITION (n + 1) UPDATE (n + 1) CFG/SDO SEE NOTE 1 tSCKL DIN (QUIET TIME) CONVERSION (n) ACQUISITION (n) BEIGN CFG (n + 1) MSB LSB tEN tHSDO tDSDO tEN MSB –1 BEGIN DATA (n – 1) LSB +1 tDIS NOTES: 1. THE LSB IS FOR CONVERSION RESULTS OR THE CONFIGURATION REGISTER CFG (n – 1) IF 16 SCK FALLING EDGES = LSB OF CONVERSION RESULTS. 30 SCK FALLING EDGES = LSB OF CONFIGURATION REGISTER. ON THE 17TH OR 31st SCK FALLING EDGE, SDO IS DRIVEN TO HIGH IMPENDANCE. OTHERWISE, THE LSB REMAINS ACTIVE UNTIL THE BUSY INDICATOR IS DRIVEN LOW. ཮43. ࡤ‫ݏ‬஬ኸ๖ഗ‫ڦ‬AD7682/AD7689‫ز‬ႜথ੨้Ⴞ Rev. B | Page 29 of 32 tDIS END CFG (n + 1) LSB END DATA (n – 1) SEE NOTE tEN 07353-039 CONVERSION (n – 1) AD7682/AD7689  ᆌᆩႷኪ! քਆք၍! AD7682/AD7689໯ሞ‫ڦ‬ᆇຘ‫ۉ‬ୟӱ(PCB)ᆌ֑ᆩఇెև‫ݴ‬ ᇑຕጴև‫ݴݴ‬૗ยऺLj‫ݴ‬՚၌዆ሞ‫ۉ‬ୟӱ‫ڦ‬ᅃۨ൶ᇘాă AD7682/AD7689‫ڦ‬໯ᆶఇె႑ࡽ࿋ᇀፑ֨Lj໯ᆶຕጴ႑ࡽ ࿋ᇀᆸ֨Ljኄዖᆅগಇଚ੗ᅜ०ࣅยऺă ፌࢫLjAD7682/AD7689‫ۉڦ‬ᇸVDDࢅVIOᆌཚࡗ༩ٍ‫ۉ‬ඹ ඁ᳘Ljഄኵཚ‫ྺ׉‬100 nFLj੍ৎAD7682/AD7689‫ݣ‬ዃLjժ ᆩ‫ڦ੻ܸ܌‬ጽ၍૶থLjᅜ༵ࠃ‫گ‬ፆੇୟ০ժ३ၭ‫ۉ‬ᇸ၍ୟ ฉ‫ڦ‬றِሯำᆖၚă Ն௨ሞഗॲူ‫ݛ‬քยຕጴ၍ୟLj‫ޏ‬ሶࣷॽሯำ᳘ࢇ዁ႊೌ ࠶ႊLj‫ݥأ‬ሞAD7682/AD7689ူ‫ݛ‬೬ᅃ߲‫֫ں‬ᆩፕೡԸă ዮසCNVई้ዓኮૌ‫੺ڦ‬໏ൎ࣑႑ࡽփᆌ੍ৎఇె႑ࡽୟ ০ăՆ௨ຕጴ႑ࡽᇑఇె႑ࡽ‫ز‬ඡă AD7682/AD7689Ⴀీೠࠚ ዁ณᆌ๑ᆩᅃ߲থ‫֫ں‬ăຕጴࢅఇెև‫ݴ‬੗ᅜࠌᆩई‫ߪݴ‬ ๑ ᆩ থ ‫ ֫ ں‬ă ‫ ܔ‬ᇀ ࢫ ᅃ ዖ ൧ ઄ Lj থ ‫ ֫ ں‬ᆌ ሞ AD7682/ AD7689ူ‫૶ݛ‬থă AD7682/AD7689ೠࠚӱ(EVAL-AD7682EDZ/ EVAL-AD7689 EDZ)‫ڦ‬࿔‫ڗ‬ዐߴ‫؜‬କഄ໲ླྀ४‫ڦ‬քਆք၍ăೠࠚӱ༫ॲԈ ઔጎದྜ฀൐ঢ়ࡗ֪๬‫ڦ‬ೠࠚӱĂ࿔‫ڗ‬ᅜतᆩᇀٗPCཚࡗ ገ࣑ഗࢅೠࠚਸ݀ຕ਍֑णӱEVAL-CED1Z੦዆ೠࠚӱ‫ڦ‬ ෉ॲă AD7682/AD7689‫ڦ‬एጚ‫ۉ‬უ๼෇REFਏᆶ‫ۯ‬ༀ๼෇ፆੇLj ᆌ৊ႜඁ᳘Ljժ๑सิ‫ߌۉ‬ፌၭăํ၄‫݆ݛ‬๟ॽएጚ‫ۉ‬უ ᇸ‫ڦ‬ඁ᳘༩ٍ‫ۉ‬ඹ੍ৎ)૙ၙ൧઄๟ኟ‫*ܔ‬REFࢅGNDᆅগ ‫ݣ‬ዃLjժᆩড੻‫گڦ‬ፆੇጽ၍৊ႜ૶থă Rev. B | Page 30 of 32 AD7682/AD7689  ྔႚ؅٫ 0.60 MAX 4.00 BSC SQ 0.60 MAX 15 PIN 1 INDICATOR 20 16 1 PIN 1 INDICATOR 3.75 BSC SQ 0.50 BSC 2.65 2.50 SQ 2.35 EXPOSED PAD (BOTTOM VIEW) 5 10 1.00 0.85 0.80 12° MAX SEATING PLANE 0.25 MIN 0.80 MAX 0.65 TYP 0.30 0.23 0.18 FOR PROPER CONNECTION OF THE EXPOSED PAD, REFER TO THE PIN CONFIGURATION AND FUNCTION DESCRIPTIONS SECTION OF THIS DATA SHEET. 0.05 MAX 0.02 NOM COPLANARITY 0.08 0.20 REF COMPLIANT TO JEDEC STANDARDS MO-220-VGGD-1 090408-B 0.50 0.40 0.30 TOP VIEW 6 11 ཮44. 20ᆅগLFCSP_VQ‫ހ‬ጎLj 4 mm x 4 mm຺‫גݛ‬ԋ༹ (CP-20-4)Lj؅٫‫ڇ‬࿋ǖmm ۩ࠔኸళ! ႙ࡽ AD7682BCPZ1 AD7682BCPZRL71 AD7689ACPZ 1 AD7689ACPZRL71 AD7689BCPZ1 AD7689BCPZRL71 EVAL-AD7682EDZ1 EVAL-AD7689EDZ1 EVAL-CED1Z 2 1 2 ओ‫ݥݴ‬၍Ⴀ(INL) ፌ‫ٷ‬ኵ±2 LSB ፌ‫ٷ‬ኵ±2 LSB ፌ‫ٷ‬ኵ±6 LSB ፌ‫ٷ‬ኵ±6 LSB ፌ‫ٷ‬ኵ±2 LSB ፌ‫ٷ‬ኵ±2 LSB ࿮฿ஓ 16 ࿋ 16 ࿋ 15 ࿋ 15 ࿋ 16 ࿋ 16 ࿋ ࿒‫ྷݔ܈‬ −40°C ዁ +85°C −40°C ዁ +85°C −40°C ዁ +85°C −40°C ዁ +85°C −40°C ዁ +85°C −40°C ዁ +85°C ‫ࢇޙ‬RoHSՔጚ‫ڦ‬ग़ඹഗॲă ُ੦዆ഗӱሎႹPC‫ܔ‬໯ᆶ‫ټ‬EDࢫጘ‫ڦ‬ADIೠࠚӱ৊ႜ੦዆ժᇑኮཚ႑ă Rev. B | Page 31 of 32 ‫ހ‬ጎ௮ຎ 20ᆅগQFN (LFCSP_VQ) 20ᆅগQFN (LFCSP_VQ) 20ᆅগQFN (LFCSP_VQ) 20ᆅগQFN (LFCSP_VQ) 20ᆅগQFN (LFCSP_VQ) 20ᆅগQFN (LFCSP_VQ) ೠࠚӱ ೠࠚӱ ገ࣑ഗೠࠚᇑਸ݀ӱ ‫ހ‬ጎ჋ၜ CP-20-4 CP-20-4 CP-20-4 CP-20-4 CP-20-4 CP-20-4 ۩ࠔຕଉ ਝಎLj490 ਝ‫ټ‬Lj1,500 ਝಎLj490 ਝ‫ټ‬Lj1,500 ਝಎLj490 ਝ‫ټ‬Lj1,500 AD7682/AD7689  ጀ๥! ©2008–2009 Analog Devices, Inc. All rights reserved. Trademarks and registered trademarks are the property of their respective owners. D07353-0-6/09(B) Rev. B | Page 32 of 32