ROHM开发出世界超小CMOS运算放大器TLR377GYZ，适用于智能手机和小型物联网设备等应用

时间： 2024-06-11 来源：ROHM

技术问答

全球知名半导体制造商ROHM（总部位于日本京都市）开发出一款超小型封装的CMOS运算放大器“TLR377GYZ”，该产品非常适合在智能手机和小型物联网设备等应用中放大温度、压力、流量等的传感器检测信号。

图 1

智能手机和物联网终端越来越小型化，这就要求搭载的元器件也要越来越小。另一方面，要想提高应用产品的控制能力，就需要高精度地放大来自传感器的微小信号，因此需要在保持高精度的前提下实现小型化。在这样的背景下，ROHM通过进一步改进多年来铸就的“电路设计技术”、“工艺技术”和“封装技术”，开发出同时满足“小型”和“高精度”两种需求的运算放大器。

新产品通过进一步改进ROHM多年来铸就的“电路设计技术”、“工艺技术”和“封装技术”，成功地实现了通常认为运算放大器难以同时实现的小型化和高精度。

造成运算放大器误差的因素通常包括“输入失调电压”^*1和“噪声”。两者都是与放大精度相关的项目，都可以通过扩大内置晶体管尺寸得到抑制，然而这又涉及到与小型化之间的权衡关系。通过嵌入利用ROHM自有电路设计技术开发出来的失调电压校正电路，新产品在保持晶体管尺寸不变的前提下实现了最高仅1mV的低输入失调电压。另外，新产品不仅利用ROHM自有的工艺技术改善了常见的闪烁噪声^*2，还通过从元件层面重新调整电阻分量，实现了超低噪声，等效输入噪声电压密度^*3仅为12nV/√Hz。此外，新产品采用了WLCSP（Wafer Level Chip Size Package）封装，该封装利用ROHM自有的封装技术将引脚间距减小到了0.3mm。与以往产品相比，尺寸减小了约69%；与以往的小型产品相比，尺寸减小了约46%。

新产品已于2024年5月开始暂以月产10万个的规模投入量产（样品价格220日元/个，不含税）。为了便于客户进行替换评估和初期评估，ROHM还提供已安装了IC可支持SSOP6封装的转换板。新产品和转换板均已开始网售，通过Ameya360电商平台均可购买。另外，还可以从ROHM官网上获取验证用的仿真模型——高精度SPICE模型“ROHM Real Model”*4。

未来，ROHM将继续致力于提高运算放大器的性能，追求更小型、更高精度、以及融入ROHM自有超低静态电流技术的更低功耗，通过更先进的应用产品控制技术，为解决社会问题持续贡献力量。

图 2

＜产品主要特性＞

新产品精度高且尺寸超小，并内置移动设备所需的关断功能，可减少待机期间的消耗电流。

图 3

＜应用示例＞

智能手机、配有检测放大器的小型物联网设备等

＜关于高精度仿真模型“ROHM Real Model”＞

在新产品验证用的仿真模型中，利用ROHM自有的建模技术，忠实地再现了实际IC的电气特性和温度特性，成功地使仿真值与IC实物的值完全一致。ROHM提供这种高精度SPICE模型“ROHM Real Model”，通过可靠的验证，可有效防止实际试制后的返工等情况发生，有助于提高应用产品的开发效率。这种SPICE模型可通过ROHM官网获取。

图 4

*1)输入失调电压运算放大器输入引脚间产生的误差电压称为“输入失调电压”。

*2)闪烁噪声半导体等电子元器件中一定会产生的一种噪声。由于功率与频率成反比，因此频率越低，闪烁噪声越大。也被称为“1/f噪声”或“粉红噪声”。除此之外，噪声还包括热噪声（白噪声）等不同类型的噪声。

*3)等效输入噪声电压密度使输入引脚间短路、并将输出端出现的噪声电压密度折算到输入端后得到的值。由于放大器存在增益（放大系数），因此可以通过输出噪声电压密度除以增益来合理评估放大器本身的噪声特性。

*4)ROHM Real Model使用ROHM自有的建模技术，成功地使仿真值与实际IC的值完全一致的高精度仿真模型。

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本文由三年不鸣转载自ROHM，原文标题为:ROHM开发出世界超小CMOS运算放大器，非常适用于智能手机和小型物联网设备等应用，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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先积集成（Linearin）放大器/比较器/数据转换器/模拟开关/电源管理产品选型指南（英文）

目录- COMPANY INTRODUCTION PRODUCT INTRODUCTION Amplifiers Comparators Data Converters LDO Voltage reference Analog Switch

型号- LTC8701,LTC8705,LTC8704,LTC8703,LTC8702,LTR3030,LTC8382,LTR3033,LTP3465-XX,LTA8094,LTA809X FAMILY,LTA8092,LTC8381,LTC358,LTC324H,LTA8091,GP8101S,LTC8811,LTC8814,GP8102S,LTC8813,LTC8812,GP9301B,GP9101,LT180B2,GP9105,LT180B1,LT180B4,LT180B3,LTR3040,GP8202SL,LTR33 SERIES,GP8211S,LTP3558A,LTR3012,LTA829,LT180A4,LT180A1,LT180A3,LT180A2,LTA8074,LTA8072,LTC358H,LTA8071,LTP3454-XX,LTP3564,LTC331,LTP3567,LTC358A,LTP3559A,GP8201S,LTR3025,LTR3020,LTC321A,LTC321B,LTA8084,LTA8081,LTA8082,LTC324,LTC321,LTP3558,LTP3559,LTC8745,LTC8744,LTC8743,LTC8742,LTC8748,LTC8746,LTA6034,GP8101,LTA6031,LTC8741,LTA6032,GP8202ASL,LTC393,LTC5223,GP9305,LTC5228,LTA8224,LTA8221,LTA6042,GP9303,LTA8222,LTA6041,LTA6044,LTP3570,LTC8728,LTC8844,LTC8723,LTC8722,LTC8842,LTC8721,LTC8841,LTC3157,LTC8727,LTC8726,LTC8725,LTA809X,LTC881X FAMILY,LTC881X,LTC8838,LT199,LTC8832,LTC8831,LTC8836,LTC8835,LTC8834,LTA5054,LTC8392,LTC8391,LTC8708,LTC8707,LTC8706,LTC6004,GP8212ASL,LTP33XX,LTR3312,LTC6001,GP8301,LTA8134,LTC6002,LTC72X,LTA8131,GP8303,LTA8132,GP8302,LT199 SERIES,LTP3456-XX,LTR3325,LTR3320,LTA4584,LTA8024,LTA8021,GP8413,LTA8264,LTA4580,LTA8022,LTA8261,LTA8262,LTC728,LTA6052,LTC726,LTA6051,LTC8876,LTC8875,LTC8874,LTC8878,LT199G3,LT199G2,LTA604X,GP8312,LTC8872,GP9403,GP7101,LTC8871,LT199G1,GP8313,LTC725,LTC724,LTC722,LTC721,GP8503,GP8502,LTC8582,LTC8581,GP8501,LTC8584,GP8500,GP8212SL,LTA8292,LTA8291,LTC855X,LTA604X FAMILY,LTC8333,LTC8332,LTC8331,LTA8184,LTA8064,LTA8061,LTA8182,LTA8062,LTA8181,LTP6202,GP9301BM,GP8403,LTP829,LTR3333,LTC2467,LTR3330,LTA8274,LTA8154,GP8401,LTA8272,LTA8151,LTA8152,LTA8271,GP8513,LTC7227,GP7305,LTR3340,LTC8554,LTC7222,LTC8553,LTC8552,GP8512,LTC855X FAMILY,LTC8551,LTA8284,LTA8281,LTA8282,LTP3631,LTP3633,LTR33,LTP3635,LTP3636,LTC72X FAMILY,LTP3637

选型指南 - 先积集成 - 2023/3/15 PDF 英文下载

先积集成电路公司产品介绍

型号- LTC8701,LTC8822,LTC8821,LTA87103,LTA87104,LTC8826,LTC8705,LTC8825,LTC8704,LTC8703,LTC8824,LTC8702,LTC8823,LTA8778,LTA8775,LTA8776,LTA87701R,LTC8382,LTA87102X,LTA8774,LTA8771,LTA8772,LTC8381,LTC358,LTA8092,LTC324H,LTA8091,LTA87701F,LTC8811,LTC8814,LTA87XX,LTC8813,LTA877X,LTC8812,LT180B2,LT180B1,LT180B4,LT180B3,LT180A4,LT180A1,LTA87101R,LT180A3,LT180A2,LTA8074,LTA8072,LTC358H,LTA8071,LTAOP27C2,LTP3454-XX,LTP3564,LTC331,LTA87101F,LTC358A,LTC8594,LTC8593,LTC8592,LTC8591,LTA8139GX,LTA80XX,LTC321A,LTA8084,LTA8081,LTC324,LTA8082,LTC321,LTP3558,LTP3559,LTC8745,LTC8744,LTC8742,LTC884X,LTC8748,LTC8746,LTC8741,LM2903B,LTA87(P)18,LTA87106X,LTA87(P)16,LTA87(P)14,LTA87(P)15,LTA87(P)12,LTA87705R,LTA87(P)11,LTA87705F,LTC393,MC33078,LTA8224,LTA8221,LTA8222,LM2904B,LTC882X,LTC8728,LTA084,LTA082,LTC8844,LTC8722,LTC8842,LTC8721,LTA87105R,LTC8841,LTC8726,LTC8725,LTC8724,LTA8711N,LTAOP27C,LTA87702X,LTA074,LTA072,LTA87105F,LTA1014,LTC8832,LTA1013,LTC8831,LTC8834,LTC8392,LTC8391,LTC8708,LTC8828,LTC8827,LTC8706,LTA064,LT19X,LTA062,LTA87107,LTA87108,LTC6004,LTC8544,LTP33XX,LTC6001,LTC72X,LTC6002,LTC8542,LTA8134,LTC8541,LTA8131,LTA8132,LTA8130,LTA8159GX,LTA4584,LTA8024,LTA8021,LTA8022,LTA8264,LTA4580,LTA8261,LTA8262,LTA4558,LTA8771N,LTA4550,LTA87706X,LTA8715N,LTC728,LTC726,LTC8876,LM2902B,LTC8875,LTC8874,LTA5532,LTC8878,LT199G3,LT199G2,LTA3472,LTA3474,LTC8872,LTC8871,LT199G1,LTC725,LTC724,LTA8175-2,LTC722,LTA8175-4,LTC721,LTA87707,LTA87703,LTAOP07,LTC8582,LTP31XX,LTC8581,LTC8584,LTA8294,LTA8292,LTA8291,LM331B,LTP3452-XX,LTA817X,LTC8333,LTC8332,LTC8331,LTA8184,LTA8064,LTA8061,LTA8182,LTA8062,LTA8180,LTA8181,LTC855X,LTA8718,LTA8715,LTA8716,LTA8714,LTA8775N,LTA8711,LTA8712,LTA8274,LTA8154,LTA8272,LTA8151,LTA8152,LTA8271,LTA8150,LM321B,LTA87(P)78,LTA87(P)76,LTA87(P)74,LTA87(P)75,LTA87(P)72,LTC8554,LTC8553,LTC8552,LTC8551,LTA8284,LTA8173-4,LTA8281,LTA8282,LTA8173-2,LTP3631,LTP3633,LTP3635,LTP3636,LTP3637

商品及供应商介绍 - 先积集成 PDF 中文下载

ROHM（罗姆）运算放大器/比较器选型指南（中文）

描述- ROHM的运算放大器/比较器有双极(bipolar)型、CMOS型。已经为用户准备好许多适用于接地检测(单电源、双电源)、高耐压、低噪声、低饱和、低消耗电流、输入输出最大振荡等多种用途的产品。

型号- BU7421S,LM4565,BU7445S,BU7245,BU7244,BU7242,BU7295S,BU7241,LMR1803Y,BU7271S,BU7481,BA82904Y,BA83474Y,BD7282,BD7280Y,BU7475,BU7233,BU7232,BU7231,BU7230,BA4558Y,BU5265S,BD7284,BA82903Y,BD12734,BD12732,BD12730,BD7281Y,BD87524,BU7205S,BU7411S,BD87522,BU7465,BU7464,BU7462,BU7461,BU7261S,BD7541S,LM8391,BA82902Y,BA4580Y,BA8391,BA83472Y,BD87554Y,LMR1802Y,BU7262S,BU7250S,BD7542S,LMR982,LMR981,LMR1801Y,BA82901Y,LMR1801,BU7441S,LMR1803,BU7465S,LMR1802,BU7291S,LMR1701Y,TLR377,LM8391EY,BU7442S,LM358,BU7275,BU7271,BA3404,LM324,BU7266,BU7265,BU7264,BU7262,BA2901S,BU7261,BA3472W,BA3472Y,BA2901Y,BA3472R,BD7561S,LMR376Y,BA4560Y,BU7444S,BA4584Y,BU7255,LM339,BU5255S,BU7495,BU7253,BU7252,BA4584R,BU7251,BU7250,BU7294S,BD7562S,TLR4376Y,BU7485S,BU7255S,BA2904,BA2903,BU7231S,BA2902,BU7486/,BA2903S,BA2901,BA2107,BU7461S,BA3474Y,BA2903Y,BA3474W,BA3474R,LM2902EY,TLR4377Y,BU7244S,BU7462S,BU7486S,BU7232S,BU7487/,BU7232Y,BA2902S,BD7562,BD7561,BD87584Y,BU7244Y,BA2902Y,LMR321,LMR324,LM393,BU7233S,LMR1701,BU7245S,BU7487S,BU7475S,LMR341,BU7233Y,BA4510,BD1321,LM2901EY,BU7291,BA4564W,BU7464S,LMR1001Y,BA2904S,BD7542,BD7541,BU7295,BA2904Y,BU7294,BD87582Y,BA4564R,LMR344,LMR342,TLR344,TLR341,TLR342,BU7275S,BD87581Y,LM2904,BU7442,BU5265,BU7441,BU7481S,BU7251S,LM2901,LM2902,LM2903,BD77502,BD77501,BD77504,BU7205,BU7445,LMR358,TLR377Y,BU7264S,BU7264Y,BU7252S,BA4584,BU5255,BD5291,BU7495S,BU7253S,BU7265S,BU7421,BU7241Y,BU7241S,LMR932,LMR931,LM2903EY,LMR934,TLR2376Y,BU7266S,BU7242S,LM4559,BU7485/,LM2904EY,BU7242Y,BU7230S,BA3472,LMR822,LMR821,TLR376Y,BA3474,BU7411,LMR824,TLR2377Y

选型指南 - ROHM - 2024/2/27 PDF 中文下载

ROHM高性能运算放大器选型表

高性能CMOS运算放大器具有低噪声、低输入失调电压、低输入偏置电流和高速度的特点，适用于用电池供电的设备和使用放大器的传感器。

Power supply (Min.) [V] (+5V=5, +/-5V=10)

Power supply (Max.) [V] (+5V=5, +/-5V=10)

Input Voltage Range [V]

Output Voltage Range [V]

Circuit Current (Typ.) [mA/ch]

Input Offset Voltage (Max.) [mV]

Input Bias Current (Typ.) [nA]

Slew Rate (Typ.) [V/µs]

Equivalent input noise voltage (Typ.) [nV/√Hz]

GBW (Typ.) [MHz]

Series

Temperature (Min.)[°C]

Temperature (Max.)[°C]

Rail-to-Rail Input/Output

2.5

5.5

VSS to VDD

VSS+0.010 to VDD-0.010

AEC-Q100 (Automotive Grade)

选型表 - ROHM 立即选型

TLR377GYZ 超小型WLCSP* 低输入失调电压高精度运算放大器

型号- TLR377GYZ

商品及供应商介绍 - ROHM - 05.2024 PDF 中文下载

CMOS运算放大器和双极型运算放大器的不同是什么？

CMOS运算放大器具有极小输入偏置电流（pA级）和低耗电量的特点。CMOS工艺的耐压低，适于低电源电压的应用。虽然双极型运算放大器的输入偏置电流、消耗电流比CMOS运算放大器多，但其具有易于提高耐压、低噪声、低偏置、宽频带的特点。

技术问答发布时间 : 2024-06-28

ROHM Solution Simulator Low Noise, Low Input Offset Voltage CMOS Operational Amplifiers (Op Amps) User's Guide

用户指南 - ROHM - Rev.001 - Oct.2021 PDF 英文下载查看更多版本

BD87581YG-C EMARMOUR™ Automotive Excellent EMI Characteristics Input/Output Rail-to-Rail CMOS Operational Amplifier Datasheet

型号- BD87581YG-C,BD87581YG-CTR

数据手册 - ROHM - Rev.001 - 15.Nov.2019 PDF 英文下载

ROHM高速运算放大器选型表

ROHM的运算放大器有双极(bipolar)型、CMOS型。已经为用户准备好许多适用于接地检测(单电源、双电源)、高耐压、低噪声、低饱和、低消耗电流、输入输出最大振荡等多种用途的产品。

Power supply (Min.) [V] (+5V=5, +/-5V=10)

Power supply (Max.) [V] (+5V=5, +/-5V=10)

Input Voltage Range [V]

Output Voltage Range [V]

Circuit Current (Typ.) [mA/ch]

Input Offset Voltage (Max.) [mV]

Input Bias Current (Typ.) [nA]

Slew Rate (Typ.) [V/µs]

Equivalent input noise voltage (Typ.) [nV/√Hz]

GBW (Typ.) [MHz]

Temperature (Min.)[°C]

Temperature (Max.)[°C]

选型表 - ROHM 立即选型

运算放大器双极型和CMOS运算放大器其各自的输入偏置电流方向（极性）。

当输入为双极型晶体管时，输入段晶体管的基极电流为偏置电流。NPN为流入，PNP为流出。输入为MOSFET时，由于电流不会流入栅极，因此在输入端子和VDD间、输入端子和VSS间分别连接的静电保护元件漏电流流出和流入之差就是输入偏置电流。由于漏失的偏差，虽然有时会存在流入和流出的情况，但在室温中，绝对值为pA级。

技术问答发布时间 : 2024-06-28