【选型】工控板卡项目推荐使用双高速低功耗比较器SGM8745系列,支持3mv施密特触发
接口电路、整形电路等数字信号组成的环路中,逻辑器件以及运放比较器是不可或缺的一部分,如与门、非门、或门、异或门、低噪声运放、高速比较器等器件,在此类电路中常常会出现,它们通常会用来对数字型号做处理以及转换。
某客户的工控板卡项目上,需要针对7KHZ~10KHZ、幅值5V的一个正弦波信号与基准做比较,输出一个PWM波形,深层的需求是需要传播延迟ns级别,推挽输出,支持TTL逻辑的高速比较器。
根据以上客户的需求,给客户推荐了圣邦微的双高速低功耗比较器SGM8745系列产品,下面针对SGM8745制作了以下表格,其中包含了它的性能指标与特性供大家参考:
根据以上表格,我们可以分析出此颗物料的以下特点与优势:
1. 芯片是轨到轨输入与输出,输入输出信号都不会出现失真
2. 芯片的输出结构为推挽,这就省去了上拉电阻以及上下拉速率会更快
3. 传播延时非常快,只需要6ns,非常适用于高速的数据通信上
4. VOS相当于施密特电压,可以容纳3mv的电压抖动,防止输入的噪声导致输出的上升下降沿发生高频震动的现象。
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器件选型 发布时间 : 2022-08-01
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
【产品】支持轨到轨输入高速比较器SGM8743、SGM8744、SGM8745,低至6ns传播延时
SGM8743/SGM8744/SGM8745是圣邦微推出的高速比较器,其中SGM8743/SGM8744为单通道比较器,SGM8745为双通道比较器。该系列比较器可支持高速响应,传播延时典型值仅6ns(100mV过度驱动)。同时该系列比较器可支持轨到轨输入。SGM8743/SGM8744/SGM8745具有低失调电压,其失调电压典型值仅0.8mV。
新产品 发布时间 : 2018-01-31
SGM8745X 6ns, 3V/5V, Single-Supply, Low Power, Rail-to-Rail I/O Comparator
型号- SGM8745XS8G/TR,SGM8745XMS8G/TR,SGM8745X
SGMICRO比较器选型表
微功耗比较器,低功耗300nA,单/双通道,具有闩锁功能;高速比较器,传播延迟低至6ns,高速宽电压,推挽/开漏输出
产品型号
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品类
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CH
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Vᴄᴄ(Min)(V)
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Vᴄᴄ (Max)(V)
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Vᴏs(mV)
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Iq/CH(μA、nA)
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Propagation Delay(L to H)(ns、μs)
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Propagation Delay(H to L)(ns)
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tʀɪsᴇ(ns)
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tғᴀʟʟ(ns)
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Output Type
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Package
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SGM8751
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高速比较器
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1
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2.7
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5.5
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5
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150μA
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22ns
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30ns
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11
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8
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Push-Pull
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SOT-23-5
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选型表 - SGMICRO 立即选型
请推荐可pin to pin替代TLV3502的比较器。
暂无pin-pin推荐,可以推荐功能性替代的圣邦微双通道高速比较器SGM8745YS8G/TR,具有高速响应、低功耗、轨至轨输入特点,单电源供电3V/5V,传输延时6ns,电源电流仅2.6mA@Vs=3V,低失调电压Vos=0.8mV(Typ),工作温度范围-40℃~ +85℃,规格书参考链接:https://www.sekorm.com/doc/1860147.html。
技术问答 发布时间 : 2017-07-01
【经验】高速比较器SGM8745在输出时遇到高频抖动问题解决经验
高频抖动是比较器输出出现比较频繁的异常情况之一,它发生的原因是因为输入信号的噪声或毛刺在比较点处频繁的触发输出变换极性导致。这种情况与输入信号的特性脱不开关系,1是信号的幅值,幅值越小,越容易发生高频抖动。
设计经验 发布时间 : 2023-03-31
请问SGMICRO的SGM8745YS8G/TR双通道高速比较器有何功能特点?
SGMICRO的SGM8745双通道高速比较器的特点如下: 1.高速响应,传播延时仅6ns(100mV过度驱动); 2.支持轨到轨输入范围; 3.低失调电压,失调电压典型值仅为0.8mV; 4.输出摆幅可达电压轨195mV以内,输出电流可达4mA; 5.集成内部迟滞电路可使输出切换更纯净; 6.兼容CMOS/TTL电平; 7.低功耗,典型值2.6mA(Vs=3V); 8.供电电压范围2.7V~5.5V; 9.工作温度范围-40~+85℃;
技术问答 发布时间 : 2018-04-28
SGM8745 6ns, 3V/5V, Single-Supply, Low Power, Rail-to-Rail I/O Comparator
型号- SGM8745YMS8G/TR,SGM8745,SGM8745YS8G/TR
SGM8745 6ns, Low-Power, 3V/5V, Rail-to-Rail Input Single-Supply Comparator
型号- SGM8745YMS8G/TR,SGM8745,SGM8745YS8G/TR
【方案】低成本紧凑型工业吊扇电机驱动控制器优选器件方案
描述- 本方案通过采用高集成 IGBT IPM模块、小体积 SO8 封装霍尔电流传感器芯片以及其他相关联的元器件,可实现系统的紧凑型设计。同时,大部分物料为世强常备库存,价格较同类产品低 10%以上,有效降低系统成本。
型号- SM712-02HTG,ADP32F03,SMBJ,SMAJ,SGM8965-2XS8G/TR,SMDJ,SGM46000XPS8G/TR,TFLEXHD300,SMCJ,1812L,20-1B12IPA008SC-L239C09,RP114X,SMF,SGM8745YS8G/TR,SC92,30R,MLX91210,60R,2920L,T-GARDK52-2,SGM2019
SGMICRO(圣邦微)ADC/DAC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- 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
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