【应用】芯炽轨到轨运算放大器SC2751用于PM2.5检测装置,输入偏置电流±0.5pA
PM2.5检测装置不仅在环境质量检测中发挥作用,对于工业、汽车领域同样也有它的身影。本文主要介绍国产芯炽的轨到轨运算放大器SC2751(可兼容OPAX350)在PM2.5检测装置中的应用,大致应用框图如下:
在PM2.5检测装置中温湿度对检测精度有着很大的影响,比如当相对湿度大于60%以上时,细气溶胶例如PM2.5颗粒会吸湿增大,导致检测数据就会虚高,所以就需要根据检测到的湿度大小来计算出精确的PM2.5浓度,而在温湿度传感器后面则需要运放进行信号放大处理,芯炽的SC2751就非常适合。
首先,SC2751具备±0.5pA的输入偏置电流,非常适合在这种超大欧姆源阻抗中的应用,这样在电阻上产生不期望的输入电压就会非常小。此外,SC2751是双通道运放,可以同时用于温度传感器和湿度传感器的信号放大处理。SC2751还具有极小的噪声,能够保证输出精度更高、更稳定。
SC2751主要优势特点:
1、高带宽38MHz,高转换速率22V/μs;
2、集成双通道运放,微型MSOP-8表面贴装、SO-8表面贴装和DIP-8封装,节省PCB板面积;
3、低噪声:5nV/√Hz;
4、工作温度范围为-45℃至125℃;
5、供货稳定、性价比高。
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本文由圆明园驯兽师转载自芯炽科技,原文标题为:芯炽双通道运算放大器SC2751应用于PM2.5检测装置,本站所有转载文章系出于传递更多信息之目的,且明确注明来源,不希望被转载的媒体或个人可与我们联系,我们将立即进行删除处理。
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器件选型 发布时间 : 2019-06-29
纳芯微工业控制解决方案
型号- NSI6801,NSI1311,NSI1312,NSI824X,NSAD114X,NCA8244,NCA8245,NSM2017,NSM211X,NST175,NSM2019,NSM2013,NSI22C11,NSI68515,NSM2015,NSM2011,NSD5604,NSM2012,NSA2862X,NSR33XXX,NST86,NSOPA9XXX,NSI1300,NSI6801M,NSREF31XX,NSI1306,NST112X,NSI1303,NCA1044,NSI1305,NSR7808,NSE11409,NSI8266,NSI8100,NSR28C4X,NIRS21,NSI8260,NSOPA8XXX,NCA9555,NSI1200C,NSD1026V,NCA1042B,NSAD124X,NSD12416,NSI8608,NCA3176,NSCSA24X,NSI83086,NSM201X,NSI83085,NSM2113,NSM2311,NST235,NSR31XXX,NSCA199,NSA2860X,NST60,NSD1624,NST20,NIRS31,NSR104XX,NSR35XXX,NSD1224,NSREF30XX,NSI1200,NSI1042,NSI1400,NSCSA21X,NSD11416,NSC2860X,NSI22C12,NCA1051A,NCA3485,NST1002,NST1001,NSI82XX,NSI8200,NSI1050
NL6010 / NL6011 / NL6012 Low power, Zero-Drift, High EMC Performance Rail-to-Rail I/O, Operational Amplifier Datasheet
型号- NL6011DBAE1D,NL601X SERIES,NL6010,NL6010DCAE1D,NL6012AFAE2D,NL6011,NL6012,NL601XAAABBD,NL601X
NOVOSENSE Automotive Solution Enable the Electrification and Intellectualization of xEV
型号- NSL23916-Q1,NSI1311,NSI6601,NSI7258,NPC060N065A,NCA8244,NSM2017,NSM2019,NSM2013,NSI22C11,NSM2015,NSM2011,NSR33XXX,NSC9262,NSI1300,NSC9264,NSREF31XX,NSI1306,NSR2240X,NPS0X0N065A,NSP1830,NCA1169,NCA1044,NCA1043,NSR7808,NSOPA240X,NSE11409,NSP1831,NSC9260X,NSP1832,NSM2020,NSL2161X-Q1,NSD8306,NSOPA8XXX,NSD731X,NSD8308,NSI67XX,NSD1026V,NSE34050,NSL31682-Q1,NSCSA24X,NSL21912-Q1,NSI6622V,NSPDC1,NSR31XXX,NCA1021S,NSD8310,NSD1624,NSD8312,NPI030N065A,NSR104XX,NSI6651,NSD11416,NSI22C12,NCA1051A,NSUC1602,NCA1462,NSD8381,NSD56008,NSM3011,NSPADX,NSM3013,NSM3012,NSI6801,NST60-Q1,NSUC1610,NSI824X,NCA9539,NST175-Q1,NSR7850,NST175,NSM203X,NSIP605X,NSIP3266-Q1,NSOPA9XXX,NSI6911,NST86-Q1,NSP1631,NSD12409,NSP1632,NSPASX,NSP1630,NSE425X,NSM1013,NPI040N120A,NSL23924-Q1,NCA9555,NSI822X,NSA9264,NCA1042B,NSD12416,NSA9260X,NSPGM2,NSM2117,NSPGM1,NSI6602V,NSD3608,NSM2113,NSM2115,NSD3604,NSL31520-Q1,NSL2163X-Q1,NSR35XXX,NST20,NSREF30XX,NPC0X0N120A,NSI1200,NSI6611,NSPAS1,NSPAS3,NCA1145,NST235-Q1,NSCSA21X,NCA1043B,NSE5702,NSI6601M,NSE5701,NSR114XX,NSR1048,NSL23716X-Q1,NSM1030
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