【产品】静态电流仅6.5μA的超低功耗红外人体感应芯片SGM8139，实现超低工作电压1.4V~5.5V

时间： 2018-10-28 来源：SGMICRO

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红外人体感应芯片,低功耗红外人体感应芯片,SGM8139,SGM8139YTQB16G/TR

智能家居是通过物联网技术直接控制家中的各种设备，如照明系统、自动门、电风扇、自动灯光和报警系统，其中有不少设备需要用到红外传感器，如热释电红外传感器。为了达到节能环保、提供良好的用户体验等目的，各个厂商都在煞费苦心地寻找一款超低功耗、超低电压、低延时的芯片。

其实，不必费心，圣邦微电子就有一款非常符合需求的超低功耗红外人体感应芯片 SGM8139。

SGM8139是超低工作电压，超低功耗热释电红外传感器和震动传感器信号处理前端，它集成了信号调理的双路运算放大器，以及窗口比较器、状态控制器、延迟时间定时器、封锁时间定时器、电压基准源、大驱动能力输出驱动器，可广泛应用于多种传感器和延时控制器，以及低功耗系统的唤醒电路。

低功耗红外人体感应芯片SGM8139可以在1.4V到5.5V的电压范围内工作，超低工作电流的性质让它非常适合单节或者双节干电池供电的应用，有效降低系统成本，大幅度延长系统工作时间。它内置双运放和窗口比较器，以及外置RC可调时间的延时器和封锁时间定时器，可以有效处理热释电红外传感器的输出信号，防止外部干扰信号。

低功耗红外人体感应芯片SGM8139提供绿色环保的TQFN-2.5×2.5-16L和SOIC-16封装，并可在-40℃至+85℃的温度范围内可靠工作。

低功耗红外人体感应芯片SGM8139的特性要点：

·超低工作电压：1.4V~5.5V

·超低静态电流：6.5μA（典型值）

·集成两个高输入阻抗运算放大器，可与多种传感器匹配，进行信号放大调理

·集成双向鉴幅器，可有效抑制干扰

·集成外部RC可调时间的延迟时间定时器和封锁时间定时器

·集成参考电压发生器

低功耗红外人体感应芯片SGM8139的封装/订购信息，订货代码：SGM8139YS16G/TR、SGM8139YTQB16G/TR

低功耗红外人体感应芯片SGM8139的应用电路：

热释电红外开关电路原理图

SGM8139作为最受客户欢迎的红外人体感应芯片可以有效满足各个市场对超低功耗芯片的迫切需求。同时，圣邦微电子仍在不断努力开发更多功能性芯片以助力智能家居。

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本文由LEA酱的一生转载自SGMICRO，原文标题为:日常疲惫的时候，你是不是也有过这样的幻想？，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。

全部评论（8）

用户86910647 Lv5. 技术专家 2018-10-28

不错
沉浮 Lv7. 资深专家 2018-10-28

已收藏
用户71119603 Lv6. 高级专家 2018-10-28

学习了
Jimi Lv7. 资深专家 2018-10-28

厉害
奋斗2018 Lv3. 高级工程师 2018-10-28

不错

luosai Lv8. 研究员 2018-10-28

学习了！
国丰 Lv7. 资深专家 2018-10-28

学习了！
duanmaxie Lv8. 研究员 2018-10-28

支持

没有更多评论了

【产品】增益最高可达46dB的BD9251FV热释电红外传感器放大器，功耗不超过440mW，专为人体感应传感器设计

BD9251FV是全球知名的半导体厂商罗姆(ROHM)株式会社推出的一款人体感应传感器用IC—热释电红外传感器放大器。该热释电红外传感器放大器提供单芯片解决方案，使用方便，且采用低功耗设计，可以减少这些常用设备的待机功耗。此外，该芯片采用小型表贴封装，节省电路设计空间，便于安装。该芯片适合用于检测人体感应，可用于照明、感应灯、安防系统、网络摄像头、电视、电脑显示屏、空调、通风机等领域。

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【产品】6.5μA模拟前端热释电传感器SGM8139，非常适合单节/双节干电池供电

圣邦微电子推出SGM8139是一款热释电传感器，提供绿色环保的SOIC-16和TQFN-2.5×2.5-16L封装，可广泛应用于多种传感器和延时控制器，以及低功耗系统的唤醒电路。

2018-05-07 - 新产品代理服务技术支持现货查询批量订货

【产品】热释电传感器专用低功耗模拟前端！

6.5μA模拟前端产品SGM8139弥补了低功耗这个市场段的应用需求。

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型号- 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

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SGMICRO（圣邦微）信号链和电源管理芯片选型指南

目录- Company Profile Amplifiers Comparators Data Converters Voltage References Audio/Video Drivers Analog Switches Logic Ics Temperature Sensors RF Switches Supervisory Circuits LDOs System Power Management Ics Battery Management Ics LED Drivers LCD & OLED Display Powers and Drivers Switch Mode Power Ics Application-Specific Auxiliary Powers Motor/Gate Driver Index

型号- SGM61450,SGM3733B,SGM2558A,SGM5347-12,SGM2558B,SGM8261-5,SGM2564,SGM8261-1,SGM5347-10,SGM8261-2,SGM2549,SGM48017C,SGM72110,SGM8094,SGM836,SGM8091,SGM837,SGM61220,SGM8092,SGM8093,SGM835,SGM72108,SGM2553,SGM72106,SGM2555,SGM809B,SGM4519,SGM4517,SGM48018,SGM4518,SGM48010,SGM63600,SGM4520,SGM4521,SGM48005,SGM8417-4,SGM8417-2,SGM4051C,SGM48000,SGM48001,SGM48002,SGM3843A,SGM61433,SGM84782,SGM621,SGM58031,SGM620,SGM41600,SGM2572,SGM41603,SGM2571,SGM2574,SGM51622H,SGM4995,SGM4511,SGM4996,SGM4512,SGM2576,SGM2575,SGM4510,SGM2578,SGM4515,SGM4516,SGM8250-1,SGM8250-2,SGM4514,SGM3209,SGM809,SGM8557-3,SGM8557-1,SGM8557-2,SGM803,SGM61012,SGM804,SGM802,SGM61013,SGM810,SGM811,SGM4782,SGM7237B,SGM8902,SGM8903,SGM8904,SGM4542,SGM8905,SGM4548,SGM4549,SGM3699,SGM4546,SGM4547,SGM48013C,SGM62110,SGM61020,SGM62112,AAP6153A,SGM61022,SGM62111,SGM800,SGM2553/D,SGM2596,SGM3200,SGM3206,SGM8270-2,SGM3207,SGM4535,SGM3204,SGM8270-4,SGM8T245,SGM829,SGM61230,SGM42512,SGM41664,SGM825,SGM823,SGM61234,SGM824,SGM891B,SGM832,SGM42507,SGM42506,SGM830,SGM831,SGM4563,SGM40567,SGM4560,SGM42505,SGM4561,SGM6503,SGM4566,SGM6502,SGM8925,SGM6501,SGM8926,SGM4564,SGM8927,SGM5349-16,SGM6505,SGM4568,SGM6504,SGM8909,SGM890B,SGM816,SGM42501,SGM40565,SGM42500,SGM814,SGM815,SGM812,SGM40560,SGM40561,SGM821,SGM822,SGM820,SGM4551,SGM4552,SGM4550,SGM4555,SGM4556,SGM4553,SGM4554,FT2910,SGM8910,SGM5347-8,SGM4558,SGM11124F,74LVC2T45,SGM893B,SGM4581,SGM8941,SGM4582,SGM4583,SGM8704,SGM4588,SGM8705,SGM4589,SGM8706,SGM8707,SGM8942,SGM8701,SGM8702,SGM8703,SGM12213A,SGM892B,SGM6510,SGM8276-4,SGM4573,SGM3001,SGM4574,SGM42513,SGM6514,SGM6513,SGM3005,SGM4578,SGM6512,SGM8276-2,SGM3002,SGM42622B,SGM6511,SGM8276-1,SGM3003,SGM4576,SGMOP17C,SGM6518,SGM8931,SGM8932,SGM6516,SGM12214A,SGM8933,SGM6515,SGM8934,74AVC8T245,SGM3141B,SGM42553,SGM61031,SGM62116,SGM62115,SGM8953-1,SGM62118,SGM8953-2,SGM62117,SGM8708,SGM8709,SGM4075-2,SGM3140B,SGM4075-1,SGM42544,SGM7300A,SGM7300B,SGM42541,SGM42540,SGM8951,SGM8710,SGM8952,SGM5200,SGM38045,SGM38042,SGM6533,SGM8711,SGM8712,SGM8955,SGM38046,SGM8956,SGM8199L2,LM2904,SGM8199L1,SGM41002,SGM8968-4,SGM8968-2,LM2902,SGM8968-1,SGM8740,SGM8741,SGM8742,SGM8743,SGM8263-1,SGM8748,SGM8263-2,SGM8417-1,SGM8749,SGM8744,SGM40666B,SGM8745,SGM40666A,SGM8746,SGM8747,SGM41513D,SGM41513A,SGM42561,SGM42560,SGM8957-1,SGM8957-2,SGM42562,SGM5208-14,SGM5223,SGM48018C,SGM11102F,SGM41512A,SGM37603A,SGM8521,SGM8522,SGM5018,74LVTN16244,74LVTN16245,SGM8524,SGM8604-1,SGM11103F,SGM8193A3,SGM8604-5,SGM8193A2,SGM8604-2,SGM48019C,SGM8193A1,SGM8604-3,SGM8193A0,SGM37604A,SGM8751,SGM41007,SGM41008,SGM6332,SGM8750,SGM41280,SGM41281,SGM41283,SGM5353-16,SGM37891A,SGM41285,SGM41286,SGM8542,SGM51652H8,SGM8301,SGM8543,SGM8302,SGM8544,SGM8545,SGM51652H4,SGM8541,SGM8429C-4,SGM8304,SGM37892A,SGM8531,SGM8773,SGM8532,SGM8774,SGM8534,74LVTH125,SGM8770,SGM8771,SGM8772,SGM8535,SGM8536,SGM8537,SGM8538,SGM65230,74LVC2G04,SGM37893A,SGM65231,74LVC2G08,SGM65232,SGM8969-2,SGM8969-1,SGM2035C,SGM7232,SGM9128YP,SGM41291,SGM2036S,74LVC1G32Q,74LVC2G14,SGM13001C,SGM13001B,SGM2581E,74LVC138,SGM8958-2,SGM41295,SGM13001A,SGM8958-1,SGM7222,SGM6132,SGM8554,SGM7223,SGM8555,SGM7224,SGM6130,SGM8556,SGM2581C,SGM7220,SGM2581A,SGM8551,SGM8552,SGM7226,SGM7227,SGM7228,SGM7229,SGM44599,SGM8581,SGM7SZ32,SGM8713A-1,SGM8582,SGM6613A,SGM8584,SGM41282C,SGM8714B-1,SGM8924A,SGM58XXX,SGM5355-16,SGM7SZ19,74LVC1G125,SGM89000,SGM811B,SGM7SZ14,SGM48752X,SGM431VB,SGM2560A,SGM37603,SGM2560B,SGM6611C,SGM810B,SGM7SZ08,SGM7SZ04,SGM8591,SGM7SZ00,SGM8592,SGM9203,SGM6612A,SGM8594,SGM8922A,SGM4T245,SGM48753,SGM48754,SGM48755,SGM48756,SGM48757,SGM813B,SGM48759,74AVC4T245,SGM8140,SGM8141,SGM48751,SGM449,SGMNQ07430,SGM48752,SGM48510,SGM458,SGM3785S,SGM459,SGM457,SGM8142,SGM452,SGM450,SGM451,SGM37862,SGM37861,SGM812B,74GTL2005,SGM447,SGM448,SGM446,SGM7SZ244,SGM8478-1C,SGM7SZ245,SGM8139,SGM48537,SGM48538,SGM48539,SGM5351-16,SGM2588G,74LVCN16373,SGM2588E,SGM61032A,SGM2588K,SGM61032B,SGM2588I,SGM3712,SGM2588C,SGM3713,SGM3710,SGM2588A,SGM3711,SGM48523,SGM48524,SGM48525,SGM48526,SGM48760,SGM48520,SGM8557-5,SGM71XX,SGM706B,SGM3700,SGM3727,SGM3741B,SGM3725,SGM3726,SGMOP07,SGM898,SGM899,SGM896,SGM897,SGM895,SGM61030A,SGM61030B,SGM2566B,SGM4823,SGM3735,SGM3732,SGM2566A,SGM4822,SGM3716,SGM3740B,SGM4806,SGM3717,SGM3714,SGM3715,SGM4809,SGM4807,SGM3718,SGM4808,SGM3719,74LVC157,SGM48780,SGM48540,SGM37898,SGM51652H,SGM3720,SGM37891,SGM4812,SGM37892,SGM2567A,SGM4810,SGM37895,SGM3749,SGM3747,SGM3748,74LVTH16244,SGM72204A,SGMNQ40430,SGM432,74AHCT86,SGM431,SGM3752,SGM3753,SGM3750,SGM3756,SGM3757,SGM3755,SGM3738,SGM4825,SGM3736,SGM4826,SGM7SZ86,SGM3851A,SGM8198,SGM3741,SGM660,SGM3740,SGM3743,SGM41562B,SGM724,SGM72112B,SGM5209-14,SGM72112A,SGM2200,SGM4863,SGM2202,SGM2201,SGM2204,SGM2203,SGM2206,SGM4865,SGM2205,SGM3758,SGM3759,SGM8416-4,SGM722,SGM723,SGM721,SGM3760,SGM72004B,SGMNM45412,SGM8295-2,SGM8295-4,SGM8480-2,SGM2523C,SGM2523D,SGM2523A,SGM8295-1,SGM2523B,SGM3766,SGM4040B,SGM790A,SGM330A,SGM790B,SGM790C,SGM41100A,SGM41100V,SGM41100W,SGM2220,SGM8262-2,SGM8416-1,SGM2221

2023/4/7 - SGMICRO - 选型指南代理服务技术支持现货查询批量订货

SGMICRO放大器选型表

专用运算放大器，高输出电流400mA，低功耗1.1μA；高速运算放大器，500MHz增益带宽，高压摆率265V/μs；高精度运算放大器，失调电压低至5μV，低温漂0.011μV/℃；电流检测放大器，高共模电压105V，高共模抑制比140dB；低噪声运算放大器，低噪音1.6nV/√Hz，低失调电压8.5mV；微功耗运算放大器，最低功耗低至350nA，1\2\4路，轨至轨输入输出；低功耗运算放大器，功耗低至2.5μA，最大工作电压36V

选型表 - SGMICRO 立即选型

SGMICRO-TI/ADI/MAXIM/MPS/SILERGY/ST等信号链电源芯片对照表

描述- 圣邦微SGMICRO与TI/ADI/MAXIM/LT/Onsemi/ST/Microchip/Nexperia/MPS/TOSHIBA/ROHM/RICHTEK/SILERGY/ABLIC/Renesas/Diodes/NXP/NJM/Infineon/Allegro 等品牌的信号链、电源芯对照表。

型号- SY8388,SN74HC541,A3981,IR44273,74AVC8T245Q,TS3A24159,TS3A24157,FAN3100,SLG88103,ADA4622-2,SLG88104,ADA4622-1,SGM2560,NA199,SGM2564,TSL6002,LMR23620,SGM48017C,LM431,FAN49103,MAX4282,SGM61220,BD9A201,74HC595,TLV3542,TLV3541,TS3A4751,TLV522,LMR23630,FAN53611,TC7SZ14FU,74LCX04,NCS21803,HCF4051,NCS21801,HCF4052,74LCX08,HCF4053,TSC214I,TLV3544,LMP2022,TSB611,NL27WZ04,SGM2588,FAN53601,SN74HC573,SN74HC574,INA333,TSU101,TSC213I,TSU102,NTMFS4C10N,UCC27531-Q1,TSU104,RT8293,74HC573,74HC574,SGM621,RT8290,SGM41600,TSB621,SGM620,SGM2572,SGM41603,SGM2571,SGM2576,SGM2575,SGM2578,SGM8T245S,RT8296,NL17SG07,SGM8557-1,TSU111,SGM8557-2,TSU112,ESD103-B1-02,INA321,TLV2242,TLV2241,SGM2205-12XK3G,ISL28118,OPA2277,BU30TD2,LM5109,BQ25619,SGM48013C,BQ25618,INA317,BQ25611,SGM62110,SGM62112,FSA4157,TPS76933,SGM2593,XB6091IS,BQ25601,TPS76950,BQ25600,SGM61230,TXS0104,TXS0102,SGM61232,SGM61234,TLV8801,TXS0101,SGM61233,74HC123,SGM5349-16,TLV62084,SGM431V,LTC2054,TPS51200,LTC2050,TLV8812,TLV8811,SGM61235,TLV8802,RT8253,BD9D323,BD9D322,AD5541,PMPB27EP,TPS54302,SGM4553YXET,LM7322,SGM8706,LM7321,SGM8707,SGM8701,MAX4664,LPV7215,SGM12UB1D2,AP2191,SGM3001,SGM42513,74LVC245A,SGM3005,TPS61099,SGM3002,SGM8276-2,TPS7A8300,SGMOP17C,TPS2553,ISL28130,TPS2556,TPS2557,SGM42403Q,SGM42553,BD6222,SGM8255B-2,ISL28134,74AHC1G08GV,TPS2551,74HC165,SGM62116,SGM62118,SGM62117,TPS3852-Q1,MAX4684,74HC164,AP2172,A3916,AP2171,TPS560430,A3918,BQ25638,SGM8709,U74LVC126,MP8676,SGM61280,MCP6V16,SGM42544,NCP718,LMX331,LMR36520,LM27761,TC7SZ32FU,SN74LVTH162373,ADM708,ADM707,SGM38042,SGM38046,TPS54340,MAX4230,TPS3823,LM2904,TC74VHC138,LM2902,LM2903,SGM8740,SGM2077A,SGM8742,SGM2077B,SGM8743,PESD5V0F1BSF,SGM41515A,MIC5209,LPV802,LPV801,SGM8748,SGM8749,NLAS44599,TPS54336,SGM40666A,SGM8746,TC74VCX16245,TPS54331,74LCX32,TPS54335,SGM41513D,SGM41513A,MCP6406,FTL75939,OPA548,SGM8957-1,MCP6402,SGM8957-2,TLV6208,SGM5223,MAX4232,TC74LCX16244,MAX4231,TPS3808,SN74LVC2T45,OPA2333P,MAX4236,SGM8551XN,TPS3840,TPS54320,SGM48018C,OPA990,RT4730,SGM41512A,SGM8745X,SN74AHC1,MAX9938,74LVTN16244,74LVTN16245,LPV821,SGM48019C,MCP6V52,MCP6V51,RT4723,OPA2210,TLV755P,SN74AC244,MCP6V54,AW2027,SGM8604-2XTDU8G,SGM8750,LPV812,LPV811,AD8534,SGM41283,SGM5353-16,AP2120,AD8539,AD8538,74LVC125,MCP6V69,74LVC126,SGM41285,DRV8313,MCP6V67,SN74LVC2G66,SGM7SZ244S,CAT4104,TS321,SGM8429C-4,AD5593R,SGM61430A,MP28373,MP5121,TMP108,74LVT16373,SGM8304,MAX40078,AD8541,74LVT16374,MCP6442,TMP103,TMP102,MP9943,MP9942,AP2112,MCP6V79,NCV890100,SGM13003A,MCP6V76,STSPIN250,MCP6V77,74LVTH125,SGM8770,AP2114,SGM38042B-1,LM2841,AD8513,AD621,AD620,NCS20034,SGM65230,NCS20032,AD623,AD8515,SGM65231,AD627,TC7SPN334,SGM13002A,SGM8477-1,SGM2035C,SGM41291,SGM2036S,MCP6V96,TUSB320,74LVC138,SGM7SZ245S,SGM8958-2,SGM41296,SN74CBT3245,MP9928,SGM41298,SGM8958-1,SGM6132,MAX4736,SGM6130,AD8532,AD8531,MAX4730,TPS3422,SGM833A,MCP6472,SGM833B,TLV1702,SGM7SZ32,SQ27403,MC74LVC74,TPS3420,TPS3421,TP2011,SGM2037H,MUX36S08,BISS0002,MC74AHC08,74LVC373A,TPS2595XXDSG,MCP6001,TPS3895,AD8502,TPS3896,TPS3897,AD8500,MCP6002,TPS3898,AP2151,SGM41282C,TPS3899,AD8506,AD8505,TLV7021,SGM832A,TP2025,MC33074,TP2021,MCP6004,MCP6006,LT7183,74LVC374A,AP2141,SN74LVC2G04,MCP6492,74LVC1G126,74LVC1G125,SGM48535B,SGM7SZ14,SGM48535A,SGM48752X,TPS2596,BU28TD2WNVX,AS179,XC6201,SGM15CB1A4,XC6206,TC7WZ04,SN74LVC2G14,MCP6022,SGM2210P,SGM7SZ08,MCP6024,SGM834A,SN74LVC2G17,MCP6021,SGM834B,SGM7SZ04,MP2497,SGM7SZ00,IRL44273LPBF,SGM48753X,SGM48754X,AD5592R,TLV61046A,TPS7A8400,SGM48753,SY8301,SGM48754,SQ24335,SGM2211S,SGM48757,ISL21080,SGM48759,SY8303,MCP6032,MCP6031,SGM48751,SGM48752,SGMNQ07430,SGM61720,TSV911,TSV912,TSV914,SN74AVC16T245,MP2490,SGM05UB1B3,LPV324,OPA4379,OPA4374,HD3SS3412,MCP6044,OPA4376,OPA2192,MCP6041,74VHC244,LMR16030,74AHCT595,APD7118,OPA2197,TPS62730,MCP6042,OPA2196,SN74AVC8T245,SN74LVC157,OPA2191,ADG509,ADG508,SGM8478-1C,FSA2457,TMUX415,TC7SZ00,LM1117,AD8599,TPS62743,TSV6192,SN74LVC125,SGM706S,SN74LVC126,RT6160,TPS76901,TC7SZ07,SGM2564A,TLV707P,NTMFS4C06N,MP2451,TS393,LMH6643,TC74VCX164245,SN74LVC138,SGM48760,SGM25662,MIC708,MCP6061,MP2460,LME49726,RT6150,MIC706,SN74AHCT86,MCP6074,TC7SH125F,STSPIN220,APD196,SGMOP07,74HC541,TC7SET08,LMC7211,BQ25890H,MAX706,MAX9119,MAX708,MCP6071,SGM2566C,74AHC573D,TC7SZ32,BU33TD2,74LVC157,YDA145,BD9G341,SGM2567S,NJMOP2277,INA828,LPV358,NCP382,NE5532,SGM2217Q,LMG1025-Q1,NCV6324,SGMNQ40430,NCV6334,SGM48536BQ,SGM21102G,74AHCT86,BGA524N6,SGM21102C,FSA2466,SGM21102B,INA818,SGM21102A,SGM05FB1E2,SN74AHC244,TLV74118,TC7SZ32F,NC7WZ04,74AVC8T245BQ,TSV991,TSV992,TSV994,SGM3851A,SGM48536CQ,TC913,74AHC244,AD8571,74AVC2T45,SGM2521A,TLV74128,SN74LVC541,AZ1117,LMV881,BU28TD2,MAX14589,TLV2316,SGM61330,SGM724,TS5V330,SGM5209-14,74LV541A,SGM3758,NJU7076,MAX4163,MAX4162,PESD15VW1BCSF,TLV74133,TPS25921A,OP213,TLV74130,SGM722,TLV2333,SGM723,SGM721,SGM8610-2,NLAS3899,OPA2140,EL5420,MAX4174,MAX4173,SGM15UB1E2,TC7SH126FU,SGM41100A,SGM61310,SKY13351,A4980,SGM41100V,SGM61306,SGM61305,SGM61308,SGM61307,SGM8262-2,TC7PZ14,SGM3795,74LCX126,74LCX125,74LVC541A,SGM3799,SA4159

对照表 - SGMICRO

【应用】SGM8139模拟运放在人体感应传感器的应用，符合国家标准GB/T10488-1997

圣邦微电子推出的一款6.5μA模拟运放SGM8139可以帮忙解决热释电传感器的小信号放大功能，其内置双运放和窗口比较器，以及外置RC可调时间的延时器和封锁时间定时器，可以有效处理热释电红外传感器的输出信号，防止外部干扰信号。

2018-08-25 - 应用方案代理服务技术支持现货查询批量订货

SGMicro（圣邦微） SGM8139 数据手册

型号- SGM8139YTQB16G/TR,SGM8139YS16,SGM8139YS16G/TR,SGM8139

2017年03月01日 - SGMICRO - 数据手册代理服务技术支持现货查询批量订货

SGM8139YS16G/TR PcbLib & SchLib & IntLib

型号- SGM8139YS16G/TR

2024/1/4 - SGMICRO - CAD模型库代理服务技术支持现货查询批量订货

【选型】温度测量中的热电堆红外传感器与NTC热敏电阻的应用区别

在温度测量的应用中，我们通常会用到热电堆的红外传感器或者是NTC温度传感器，那么这两类传感器有什么不一样的使用方式，之间有什么区别呢，本文将进行介绍。

2020-03-04 - 器件选型

【经验】SGM8139外围电路整改解决PIR人感角度偏小问题分析及解决

人体热释电红外(PIR)探测器通过检测人体发射出的10um左右特定波长的红外线光来检测是否有人进入探测区域。因传统的人体热释电红外探测器无法很好地鉴别出人体信号和干扰信号，从而在无线发射或其他干扰情况下会导致误报警，致使抗干扰能力下降，损失用户体验舒适度。

2018-12-30 - 设计经验代理服务技术支持现货查询批量订货

【成功案例】SGM8139 热释电传感器在智能风扇控制系统中的应用

本文介绍圣邦微的热释电传感器前端信号处理电路的芯片SGM8139在智能风扇控制的成功案例。初始方案采用了BISS0001作为热释电传感器的信号处理电路，使用过程中发现其功耗较高，且工作温度在-10到70℃，不适合使用与严苛的工业环境。

2018-08-06 - 应用方案代理服务技术支持现货查询批量订货

【应用】基于震动传感器前端信号处理电路芯片SGM8139的超低功耗震动传感器设计

采用SGMICRO品牌的震动传感器前端信号处理电路的芯片SGM8139可以实现超低功耗的震动传感器设计。SGMICRO人体感应芯片SGM8139相对于市场上的其他同类产品优势在于采用了CMOS制造工艺，所以SGM8139静态电流仅6.5uA，并且SGM8139无需外围配置皆可以完成较小的静态电流，适合用于电池供电设备，延长设备使用寿命。

2018-12-13 - 应用方案代理服务技术支持现货查询批量订货

SGMICRO专用运算放大器选型表

专用运算放大器，高输出电流400mA，低功耗1.1μA

Crossover Distortion Free

SOIC-8 MSOP-8

选型表 - SGMICRO 立即选型

热电堆信号放大电路电阻选取应该注意什么？如图为Amphenol典型的热电堆测试电路图中NTC电阻与R4串联后与R2并联其中R1 R2 R3 R4 的选取应该注意什么呢？我猜测如下第一作用是使得NTC的电阻变化能够通过电阻反应出电压值Vth，另外形成一个偏执电压给红外电压输入值运算放大器，避免初始电压低于运算放大器最小输入电压？不知道是否正确，还请大家帮忙指导一下。

这个典型电路中的前端电阻网络是将NTC传感器做成一个电桥，把NTC传感器当做电桥一个桥臂。而红外传感器是运放的另一端的电压信号，其实它的设计原理是采集了NTC与红外传感器的电压差值使得运放输出。运放推荐选择圣邦微品牌的SGM8139，在1.4V到5.5V的电压范围内工作，内置双运放和窗口比较器，以及外置RC可调时间的延时器和封锁时间定时器，可以有效处理热释电红外传感器的输出信号，防止外部干扰信号。可以参考文章：【应用】SGM8139模拟运放在人体感应传感器的应用，符合国家标准GB/T10488-1997。也可以按照此文章进行设计：【经验】SGM8139外围电路整改解决PIR人感角度偏小问题分析及解决。

2020-03-02 - 技术问答