【选型】国产低压微功率运算放大器可兼容OPA2379A用于电力系统监测设备，静态电流低至2.5μA

时间： 2022-04-01 来源：世强

技术问答

在电力系统监测设备产品的测频电路上，需要用到在低频段具有低压超低噪声的运算放大器。本文介绍一款可兼容OPA2379A的国产圣邦微电子（SGMICRO）SGM8049-2XS8G/TR 低压微功率运算放大器，下面我们来看看这两款产品的基本参数信息：

从上表可知SGM8049-2XS8G/TR与OPA2379A的主要参数基本一致，增益带宽上SGM8049-2XS8G/TR范围会更宽一些，而输入电压噪声方面OPA2379A会更理想一些，总体看来两者可以说是性能相当。另外二者在管脚功能设计定义上也是一样的，同样的SOIC-8封装可以直接P2P互换，省去了重新设计PCB线路的精力。

综上所述，在低压供电线路部分有超低噪声运放选型需求的客户，可以考虑下这款圣邦微电子SGM8049-2XS8G/TR产品。

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SGMICRO国产小逻辑系列芯片，速度快、功耗低、工作电压宽，逻辑种类丰富

圣邦微电子（北京）股份有限公司（SGMICRO Corp）是一家专注于高性能、高品质模拟集成电路研发和销售的半导体公司。SGMICRO推出的逻辑系列芯片包括与非门、反相器、与门、或门、异或门、缓冲器等，这些逻辑电平转换芯片在CA卡、Smart Card、HDMI、I2C、GPIO接口电平转换领域有着广泛的应用。

器件选型发布时间 : 2019-01-15

【选型】SGMICRO升降压转换器SGM62110用于TWS耳机，静态电流仅18μA

TWS耳机在小型化上要求越来越高，因此产品的功率密度、效率、功耗等指标上是新的挑战。本文从性能参数及封装尺寸等方面分析，讨论圣邦微电子（SGMICRO）升降压转换器SGM62110在TWS耳机上应用的优势。

器件选型发布时间 : 2022-08-01

【选型】线性终端稳压器TPL51200-DF8R用于电力系统监测设备DDR存储器供电上，灌电流和源电流可达3A

本文结合电力系统监测设备上DDR SDRAM存储器供电系统的要求，介绍了思瑞浦的线性终端稳压器TPL51200-DF8R相关优势特性，供读者参考。

器件选型发布时间 : 2022-02-04

SGMICRO（圣邦微）信号链和电源管理芯片选型指南

描述- SGMICRO specializes in high-performance and high-quality analog and mixed-signal integrated circuits, and is committed to building a comprehensive portfolio of the highest quality analog and mixed-signal integrated circuits to address all customer needs.

型号- SGM11108M,SGM8306-2,SGM8306-1,SGM61450,SGM3733B,SGM11108E,SGM852,SGM853,SGM851,SGM5347-12,SGM2558A,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,SGM4518,SGM48010,SGM11106C,SGM63600,SGM41611,SGM4520,SGM4521,SGM48005,SGM8417-4,SGM8417-2,SGM4051C,SGM48000,SGM48001,SGM48002,SGM3843A,SGM61433,SGM621,SGM84782,74HC574,SGM58031,SGM620,SGM862,SGM41600,SGM2572,SGM41603,SGM860,SGM2571,SGM51622H,SGM4995,SGM4511,SGM2574,SGM4996,SGM4512,SGM4510,SGM2575,SGM51622D,SGM4515,SGM8T245S,SGM4516,SGM8250-1,SGM8250-2,SGM4514,SGM3209,SGM809,SGM8557-3,SGM8557-1,SGM8557-2,SGM803,SGM61012,SGM804,SGM802,SGM61013,SGM810,SGM811,SGM61007,SGM61006,SGM4782,SGM7237B,SGM8902,SGM8903,SGM8904,SGM4542,SGM8905,SGM4548,SGM4549,SGM3699,SGM4546,SGM4547,SGM48013C,SGM62110,SGM61020,SGM62112,AAP6153A,SGM61022,SGM62111,SGM800,SGM2596,SGM3200,SGM3206,SGM8270-2,SGM3207,SGM4535,SGM3204,SGM8270-4,SGM8T245,SGM829,SGM61230,SGM42512,SGM41664,SGM825,SGM61232,SGM823,SGM61234,SGM824,SGM891B,SGM42507,SGM42506,SGM40567,SGM4560,SGM42505,SGM4561,SGM6503,SGM4566,SGM8925,SGM6502,SGM8926,SGM6501,SGM4564,SGM8927,SGM5349-16,SGM4565,SGM6505,SGM4568,SGM6504,SGM8909,SGM818,SGM890B,SGM816,SGM42501,SGM40565,SGM42500,SGM814,SGM815,SGM812,SGM40560,SGM40561,SGM821,SGM822,SGM61235,SGM820,SGM4551,SGM4552,SGM4550,SGM4555,SGM4556,SGM4553,SGM4554,SGM51652S8,SGM8910,SGM5347-8,SGM4558,SGM11124E,SGM37863A,SGM11124F,74LVC2T45,SGM893B,SGM4581,SGM8941,SGM4582,SGM4583,SGM48521Q,SGM8704,SGM4588,SGMNQ59430,SGM8705,SGM4589,SGM8706,SGM8707,SGM8942,SGM8701,SGM8702,SGM8703,SGM12213A,SGM11210A,SGM61060,SGM2050C,SGM12UB1D2,SGM892B,SGM8276-4,SGM6510,SGM4573,SGM3001,SGM4574,SGM42513,SGM6514,SGM3005,SGM6513,SGM4578,SGM8276-2,SGM3002,SGM6512,SGM42622B,SGM8276-1,SGM3003,SGM6511,SGM4576,SGM8931,SGMOP17C,SGM8932,SGM8933,SGM6516,SGM12214A,SGM8934,SGM6515,SGM11210M,SGMNE20220,74AVC8T245,SGM3141B,SGM61030,SGM42403Q,SGM42553,SGM61032,SGM61031,74HC165,SGM62116,SGM8953-1,SGM62118,SGM8953-2,SGM62117,SGM8708,SGM8709,SGM4075-2,SGM3140B,SGM61040,SGM4075-1,SGM42544,SGM7300A,SGM7300B,SGM42541,SGM42540,SGM8951,SGM8952,SGM8710,SGM4590,SGM5200,SGM38045,SGM38042,SGM6533,SGM8711,SGM8712,SGM8955,SGM38046,SGM8956,SGM2053S,SGM8199L2,LM2904,SGM8199L1,SGM41002,SGM8968-4,SGM8968-2,LM2902,SGM8968-1,SGM8740,SGM8741,SGM8742,SGM2077A,SGM8743,SGM2077B,SGM8263-1,SGM8748,SGM8263-2,SGM8417-1,SGM8749,SGM12CB1A5,SGM8744,SGM40666B,SGM8745,SGM11104S,SGM40666A,SGM8746,SGM8747,SGM41513D,SGM41513A,SGM42561,SGM42560,SGM8957-1,SGM8957-2,SGM42562,SGM5208-14,SGM5223,SGM48018C,SGM11102F,SGM11102G,SGM41512A,SGM37603A,SGM8521,SGM8522,SGM11102S,SGM33685A,SGM5018,SGM33685B,SGM33685C,SGM8524,SGM8604-1,SGM11103E,SGM8604-5,SGM8193A3,SGM11103F,SGM8604-2,SGM8193A2,SGM48019C,SGM8604-3,SGM8193A1,SGM8193A0,SGM37604A,SGM8751,SGM11103S,SGM41007,SGM41008,SGM6332,SGM8750,FT2830P,SGM11212M,SGM41280,SGM41281,SGM41283,SGM5353-16,SGM37891A,SGM41285,SGM41286,SGM7SZ244S,SGM8542,SGM51652H8,SGM8543,SGM8301,SGM8544,SGM8302,SGM8545,SGM51652H4,SGM8541,SGM8429C-4,SGM8304,SGM8607-2,SGM37892A,SGM13003A,SGM8531,SGM8773,SGM8532,SGM8534,SGM8770,SGM8771,SGM8772,SGM8535,SGM8536,SGM8537,SGM12024A,SGM8538,SGM65230,SGM37893A,SGM65231,SGM65232,SGM8969-2,SGM8969-1,SGM13002A,SGM2035C,SGM7232,SGM9128YP,SGM41291,SGM2036S,74LVC1G32Q,SGM13001C,SGM13001B,74LVC138,SGM2581E,SGM8958-2,SGM41295,SGM13001A,SGM8958-1,SGM7222,SGM6132,SGM8554,SGM7223,SGM8555,SGM7224,SGM6130,SGM8556,SGM2581C,SGM8551,SGM7220,SGM2581A,SGM8552,SGM7226,SGM7227,SGM7228,SGM7229,SGM44599,SGM8581,SGM8713A-1,SGM8582,SGM6613A,SGM8584,SGM832B,SGM41282C,SGM832A,SGM8714B-1,SGM8924A,SGM811C,SGM5355-16,SGM7SZ19,74LVC1G125,SGM48535B,SGM89000,SGM7SZ14,SGM811B,SGM48535A,SGM48752X,SGM431VB,SGM2560A,SGM37603,SGM2560B,SGM6611C,SGM15CB1A4,SGM810B,SGM41280A,SGM8591,SGM8592,SGM48753X,SGM9203,SGM6612A,SGM8594,SGM8922A,SGM4T245,SGM48753,SGM48754,SGM48755,SGM48756,SGM51242R8,SGM48757,SCM40668,SGM813B,SGM48759,74AVC4T245,SGM8140,SGM8141,SGM48751,SGM449,SGM48752,SGMNQ07430,SGMPM21330,SGM48510,SGM458,SGM3785S,SGM37864,SGM61720,SGM459,SGM37863,SGM457,SGM8142,SGM452,SGM450,SGM451,SGM05UB1B3,SGM37862,SGM37861,SGM05CB1A8,SGM05CB1A7,SGM812B,SGM05CB1A4,74GTL2005,SGM25881,SGM447,SGM448,SGM446,SGM7SZ244,SGM8478-1C,SGM51242R4,SGM8139,SGM51242R2,SGM3705,SGM48536,SGM48537,SGM48538,SGM48539,SGM5351-16,SGM2588G,SGM2588E,SGM2588K,SGM3712,SGM3713,SGM2588C,SGM3710,SGM3711,SGM2588A,SGM48522,SGM48523,SGM48525,SGM48526,SGM48760,SGMNQ07440,SGM48520,SGM48521,SGM8557-5,SGM71XX,SGM706B,SGM460,SGM3701,SGM3700,SGM3727,SGM3741B,SGM3725,SGM3726,SGMOP07,SGM898,SGM899,SGM896,SGM897,SGM895,SGM4823,SGM2566B,SGM3735,SGM3732,SGM4822,SGM2566A,SGM3716,SGM3740B,SGM48544,SGM4806,SGM3717,SGM48545,SGM3714,SGM3715,SGM4809,SGM4807,SGM3718,SGM4808,SGM3719,74LVC157,SGM48780,SGM48540,SGM48541,SGM48542,SGM48543,SGM37898,SGM51652H,SGM51652D,SGM3720,SGM37891,SGM4812,SGM37892,SGM4810,SGM37895,SGM3749,SGM3747,SGM3748,SGM72204A,SGMNQ40430,SGM

选型指南 - SGMICRO - 2024/6/11 PDF 英文下载

SGMicro（圣邦微）SGM8049-1/SGM8049-2/SGM8049-4运算放大器数据手册

型号- SGM8049-1BXC5G,SGM 80492XS8 XXXXX,SGM8049-1XN5G/TR,SGM8049-1XTDI6G/TR,SGM8049-2XS8G/TR,SGM8049-4,SGM80494 XTS14 XXXXX,SGM8049-1AXC5G,SGM8049-4XTS14G/TR,SGM8049-2,SGM8049-1,SGM8049-2XN8G/TR,SGM8049-1XN5G,SGM8049-1AXC5G/TR,SGM8049-1BXC5G/TR

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型号- SGM8049-4,SGM8049-4XTS14G/TR,SGM8049-2,SGM8049-1,SGM8049-2XN8G/TR,SGM8049-1XN5G/TR,SGM8049-1XTDI6G/TR,SGM8049-2XS8G/TR,SGM8049-1AXC5G/TR,SGM8049-1BXC5G/TR

数据手册 - SGMICRO - REV. A. 2 - AUGUST 2023 PDF 英文下载

SGM8049-1/SGM8049-2/SGM8049-4 Low Voltage, Low Power,Rail-to-Rail I/O Operational Amplifiers

型号- SGM8049-4,SGM8049-4XTS14G/TR,SGM8049-2,SGM8049-1,SGM8049-2XN8G/TR,SGM8049-1XN5G/TR,SGM8049-1XTDI6G/TR,SGM8049-2XS8G/TR,SGM8049-1AXC5G/TR,SGM8049-1BXC5G/TR

数据手册 - SGMICRO - REV. A. 1 - AUGUST 2017 PDF 英文下载

【产品】应用于医疗产品的微功率低电压运放SGM8049-1/2/4，满足二级放大电路运算放大器的要求

圣邦微公司推出的微功率低电压运放SGM8049-1/SGM8049-2/SGM8049-4很好地适应了二级放大电路运算放大器的要求。该运放的输入失调电流为Ios和输入偏置电流IB均为为±1pA，静态电流低至2.5μA，噪声峰峰值低至3.5μV（0.1-10Hz），开路电压增益可达118dB，带宽为120KHz。

新产品发布时间 : 2017-10-30

SGM8049-1/SGM8049-2/SGM8049-4 1.8V, 2.5μA, 120kHz, Rail-to-Rail I/O Operational Amplifiers

型号- SGM8049-1BXC5G,SGM8049-1XN5G/TR,SGM8049-1XTDI6G/TR,SGM8049-2XS8G/TR,SGM8049-4,SGM8049-1AXC5G,SGM8049-4XTS14G/TR,SGM8049-2,SGM8049-1,SGM8049-2XN8G/TR,SGM8049-1XN5G,SGM8049-1AXC5G/TR,SGM8049-1BXC5G/TR

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型号- SGM8049-4,SGM8049-4XTS14G/TR,SGM8049-2,SGM8049-1,SGM8049-2XN8G/TR,SGM8049-1XN5G/TR,SGM8049-1XTDI6G/TR,SGM80494XTS14,SGM8049-2XS8G/TR,SGM8049-1AXC5G/TR,SGM8049-1BXC5G/TR,SGM80492XS8

数据手册 - SGMICRO - REV. A . 1 - 2017年08月29日 PDF 英文下载

【经验】如何发挥SGM8049-1/2/4运算放大器的最佳性能

本文为大家分享一些实际应用中关于如何发挥圣邦微SGM8049-1/SGM8049-2/SGM8049-4低功耗运算放大器最佳性能的经验，包括在不影响带宽或噪声性能的情况下最大限度地降低功耗，明确功放的额定参数，保护输入不受过电压影响，控制系统噪声，提升系统的容性负载能力和稳定性。

设计经验发布时间 : 2019-03-17

【产品】手持仪表首选，每通道静态电流仅2.5uA的低功耗运算放大器

SGMICRO的SGM8049系列低功耗运算放大器的供电电压范围为1.8V~5.5V，支持轨到轨输入/输出，输入噪声典型值低至3.5uVpp。

新产品发布时间 : 2017-10-30

【产品】超低供电电压、超低噪声的低功耗运算放大器，适用于电池供电设备

SGM8049-1/SGM8049-2/SGM8049-4是圣邦微推出的低功耗运算放大器，工作电压低至1.8V(±0.9V)，开环增益118dB，CMRR达100dB，PSRR达2.5uV/V，专为电池供电应用而设计。

新产品发布时间 : 2017-10-28

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型号- SGM3157YC6,SGM3157YC6/TR,SGM3157

数据手册 - SGMICRO - REV. C. 1 - 2016年05月27日 PDF 英文下载

SGMICRO（圣邦微）ADC/DAC选型指南

型号- SGM51242R8,SGM5353-16,SGM8634C,SGM71612R82Z,SGM71612R81ZXG/TR,SGM51652H8,SGM58200,SGM61720,SGM5209-14,SGM58201,SGM71612R82,SGM51652H4,SGM42403,SGM452,SGM5347-12,SGM51652H4XTS38G/TR,SGM51652HXTS16G-S/TR,SGM58602,SGM71612R82M,SGM2048,SGM58600,SGM71612R81,SGM58601,SGM5347-10,SGM58031Q,SGM42402,SGM42401,SGM8T245XS,SGM71612R81Z,SGM48751X,SGM12UB1D2,SGM51652HX,SGM4029A,SGM6143X,SGM4573,SGM7SZ244,SGM8253,SGM2033,SGM51242R4,74LVC245A,SGM51652H4XTS38G-S/TR,SGMXXXXX,SGM51242R2,SGM58600XTRL20G/TR,SGM5351-16,SGM61030,SGM51622S8XLFH64G/TR,SGM4875XX,SGM58600XSS20G/TR,SGM25701,SGM8270,SGM51610S,SGM58601XSS28G/TR,SGM2050,SGM58031,SGM5200,SGM862,SGM71612R8XX,SGM6130X,SGM2054,SGM860,SGM8277,SGM,SGM51622H,SGM204X,SGM2059,SGM51622D,SGM51610C,SGM89XB,SGM5202-14,74AHC14,SGM61410,SGM5353,SGM51613HXTS16G/TR,SGM71612R8,SGM51652HBXTS38G-S/TR,74AHC08,SGM61411,SGM5208-14,SGM8610,SGM51652H,SGM58601XTQK28GITR,SGM71612R81ZXTSG16G/TR,SGM51652D,SGM5348-10,SGM51652S8XLFH64G/TR,SGM5348-8,SGM5348-12,SGM5349,SGM5355-16,GRM2030,SGM51613HXTQE16G/TR,SGM823,SGM61630,SGM71612R81ZXTS16G/TR,SGM51613H,SGM51622S8,SGM5349-16,SGM8249,SGM51613D,SGM8255B,SGM5860X,SGM5352-16,SGM05FB4D2,SGM4027A,SGM51652H8XTS38G/TR,SGM4551,SGM05FB8D2,SGM5200Q,SGM51652S8,SGM5347-8,SGM80XB

选型指南 - SGMICRO - May 2024 PDF 英文下载