欢迎访问ic37.com |
会员登录 免费注册
发布采购
所在地: 型号: 精确
  • 批量询价
  •  
  • 供应商
  • 型号
  • 数量
  • 厂商
  • 封装
  • 批号
  • 交易说明
  • 询价
  •  
  • 北京元坤伟业科技有限公司

         该会员已使用本站17年以上

  • LMC7221BIM5X
  • 数量-
  • 厂家-
  • 封装-
  • 批号-
  • -
  • QQ:857273081QQ:857273081 复制
    QQ:1594462451QQ:1594462451 复制
  • 010-62104931、62106431、62104891、62104791 QQ:857273081QQ:1594462451
更多
  • LMC7221BIM5X图
  • 北京元坤伟业科技有限公司

     该会员已使用本站17年以上
  • LMC7221BIM5X 现货库存
  • 数量5000 
  • 厂家NS 
  • 封装TO-23 
  • 批号16+ 
  • 百分百原装正品,现货库存
  • QQ:857273081QQ:857273081 复制
    QQ:1594462451QQ:1594462451 复制
  • 010-62106431 QQ:857273081QQ:1594462451
  • LMC7221BIM5X/NOPB图
  • 深圳市广百利电子有限公司

     该会员已使用本站6年以上
  • LMC7221BIM5X/NOPB 现货库存
  • 数量18500 
  • 厂家TI(德州仪器) 
  • 封装SOT-23-5 
  • 批号23+ 
  • ★★全网低价,原装原包★★
  • QQ:1483430049QQ:1483430049 复制
  • 0755-83235525 QQ:1483430049
  • LMC7221BIM5X/NOPB图
  • 深圳市芯脉实业有限公司

     该会员已使用本站11年以上
  • LMC7221BIM5X/NOPB 现货库存
  • 数量3000 
  • 厂家TI 
  • 封装SOT-23 (DBV) 
  • 批号新批次 
  • 新到现货、一手货源、当天发货、bom配单
  • QQ:2881512844QQ:2881512844 复制
  • 075584507705 QQ:2881512844
  • LMC7221BIM5X/NOPB图
  • 诚信溢美电子科技有限公司

     该会员已使用本站2年以上
  • LMC7221BIM5X/NOPB 现货库存
  • 数量30000 
  • 厂家TI 
  • 封装SOT23-5 
  • 批号22+ 
  • 诚信溢美,原装现货,市场最低价
  • QQ:1721899461QQ:1721899461 复制
  • -0735-16670525391 QQ:1721899461
  • LMC7221BIM5X图
  • 深圳市宏世佳电子科技有限公司

     该会员已使用本站13年以上
  • LMC7221BIM5X
  • 数量3570 
  • 厂家TI 
  • 封装SC-74A,SOT-753 
  • 批号2023+ 
  • 全新原厂原装产品、公司现货销售
  • QQ:2881894393QQ:2881894393 复制
    QQ:2881894392QQ:2881894392 复制
  • 0755- QQ:2881894393QQ:2881894392
  • LMC7221BIM5X图
  • 深圳市芯柏然科技有限公司

     该会员已使用本站7年以上
  • LMC7221BIM5X
  • 数量2980 
  • 厂家TI 
  • 封装SOT23-5 
  • 批号21+ 
  • 新到现货、一手货源、当天发货、价格低于市场
  • QQ:287673858QQ:287673858 复制
  • 0755-82533534 QQ:287673858
  • LMC7221BIM5X图
  • 深圳市捷兴胜微电子科技有限公司

     该会员已使用本站13年以上
  • LMC7221BIM5X
  • 数量9845 
  • 厂家NSC 
  • 封装SOT23-5 
  • 批号08+ 
  • 专业二三极管,集成IC,电源管理,汽车电子,光电耦合,配套物料清单等优势供应商
  • QQ:838417624QQ:838417624 复制
    QQ:929605236QQ:929605236 复制
  • 0755-23997656(现货库存配套一站采购及BOM优化) QQ:838417624QQ:929605236
  • LMC7221BIM5X图
  • 深圳市奥伟斯科技有限公司

     该会员已使用本站7年以上
  • LMC7221BIM5X
  • 数量30000 
  • 厂家NSC 
  • 封装SOT-153 
  • 批号15+ 
  • 原装现货,优势库存
  • QQ:3003412773QQ:3003412773 复制
    QQ:3003714016QQ:3003714016 复制
  • 0755-83254770 QQ:3003412773QQ:3003714016
  • LMC7221BIM5X图
  • 深圳市西昂特科技有限公司

     该会员已使用本站13年以上
  • LMC7221BIM5X
  • 数量6000 
  • 厂家NS 
  • 封装TO-23 
  • 批号2010+ 
  • 全新原装现货特价
  • QQ:2881291855QQ:2881291855 复制
    QQ:1158574719QQ:1158574719 复制
  • 0755-82524647 QQ:2881291855QQ:1158574719
  • LMC7221BIM5X图
  • 深圳市晶美隆科技有限公司

     该会员已使用本站15年以上
  • LMC7221BIM5X
  • 数量98000 
  • 厂家NS/国半 
  • 封装SOT-153 
  • 批号24+ 
  • 假一罚十,原装进口正品现货供应,价格优势。
  • QQ:198857245QQ:198857245 复制
  • 0755-82865294 QQ:198857245
  • LMC7221BIM5X图
  • 深圳市集创讯科技有限公司

     该会员已使用本站5年以上
  • LMC7221BIM5X
  • 数量25000 
  • 厂家NS 
  • 封装SOT-23-5 
  • 批号24+ 
  • 原装进口正品现货,假一罚十价格优势
  • QQ:2885393494QQ:2885393494 复制
    QQ:2885393495QQ:2885393495 复制
  • 0755-83244680 QQ:2885393494QQ:2885393495
  • LMC7221BIM5X/NOPB图
  • 深圳市华斯顿电子科技有限公司

     该会员已使用本站16年以上
  • LMC7221BIM5X/NOPB
  • 数量44754 
  • 厂家TEXASINSTRUMENTSINC 
  • 封装 
  • 批号2023+ 
  • 绝对原装正品现货,全新深圳原装进口现货
  • QQ:1002316308QQ:1002316308 复制
    QQ:515102657QQ:515102657 复制
  • 美驻深办0755-83777708“进口原装正品专供” QQ:1002316308QQ:515102657
  • LMC7221BIM5X图
  • 深圳市富科达科技有限公司

     该会员已使用本站13年以上
  • LMC7221BIM5X
  • 数量7900 
  • 厂家NS 
  • 封装SOT23 
  • 批号2020+ 
  • 一级代理 原装现货供应
  • QQ:1327510916QQ:1327510916 复制
    QQ:1220223788QQ:1220223788 复制
  • 0755-28767101 QQ:1327510916QQ:1220223788
  • LMC7221BIM5X/PBF(XHZ)图
  • 北京元坤伟业科技有限公司

     该会员已使用本站17年以上
  • LMC7221BIM5X/PBF(XHZ)
  • 数量5000 
  • 厂家NS 
  • 封装 
  • 批号2024+ 
  • 百分百原装正品,现货库存
  • QQ:857273081QQ:857273081 复制
    QQ:1594462451QQ:1594462451 复制
  • 010-62104891 QQ:857273081QQ:1594462451
  • LMC7221BIM5X图
  • 深圳市驰天熠电子有限公司

     该会员已使用本站1年以上
  • LMC7221BIM5X
  • 数量33560 
  • 厂家TI(德州仪器) 
  • 封装SOT-23-5 
  • 批号23+ 
  • 全新原装,优势价格,支持配单
  • QQ:3003795629QQ:3003795629 复制
    QQ:534325024QQ:534325024 复制
  • 86-15802056765 QQ:3003795629QQ:534325024
  • LMC7221BIM5X图
  • 深圳市昌和盛利电子有限公司

     该会员已使用本站11年以上
  • LMC7221BIM5X
  • 数量6582 
  • 厂家ns【原装正品专卖★价格最低】 
  • 封装【原厂原包装】 
  • 批号▊ NEW ▊ 
  • ◆★█【专注原装正品现货】★价格最低★!量大可定!欢迎惠顾!(长期高价回收全新原装正品电子元器件)
  • QQ:1551106297QQ:1551106297 复制
    QQ:3059638860QQ:3059638860 复制
  • 0755-23125986 QQ:1551106297QQ:3059638860
  • LMC7221BIM5X/NOPB图
  • 深圳市原力达电子有限公司

     该会员已使用本站8年以上
  • LMC7221BIM5X/NOPB
  • 数量5600 
  • 厂家National Semiconductor 
  • 封装原装 
  • 批号14+ 
  • 热卖库存 最低报价
  • QQ:3007518847QQ:3007518847 复制
    QQ:3007518731QQ:3007518731 复制
  • 0755-28194352 QQ:3007518847QQ:3007518731
  • LMC7221BIM5X图
  • 深圳市科庆电子有限公司

     该会员已使用本站16年以上
  • LMC7221BIM5X
  • 数量9845 
  • 厂家NSC 
  • 封装SOT23-5 
  • 批号23+ 
  • 只做进口原装/到货/可含13%税
  • QQ:2850188252QQ:2850188252 复制
    QQ:2850188256QQ:2850188256 复制
  • 0755 QQ:2850188252QQ:2850188256
  • LMC7221BIM5X图
  • 深圳市羿芯诚电子有限公司

     该会员已使用本站7年以上
  • LMC7221BIM5X
  • 数量1000 
  • 厂家NS 
  • 封装SOT-153 
  • 批号21+ 
  • 羿芯诚只做原装 原厂渠道 价格优势
  • QQ:2881498351QQ:2881498351 复制
  • 0755-22968581 QQ:2881498351
  • LMC7221BIM5X/NOPB图
  • 深圳市得捷芯城科技有限公司

     该会员已使用本站11年以上
  • LMC7221BIM5X/NOPB
  • 数量37048 
  • 厂家TI(德州仪器) 
  • 封装SOT23-5 
  • 批号23+ 
  • 原厂可订货,技术支持,直接渠道。可签保供合同
  • QQ:3007947087QQ:3007947087 复制
    QQ:3007947087QQ:3007947087 复制
  • 0755-83061789 QQ:3007947087QQ:3007947087
  • LMC7221BIM5X图
  • 深圳市浩兴林电子有限公司

     该会员已使用本站16年以上
  • LMC7221BIM5X
  • 数量5000 
  • 厂家NSC 
  • 封装SMD 
  • 批号2017+ 
  • 优势库存现货,部分无铅
  • QQ:382716594QQ:382716594 复制
    QQ:351622092QQ:351622092 复制
  • 0755-82532799 QQ:382716594QQ:351622092
  • LMC7221BIM5X图
  • 深圳市诚达吉电子有限公司

     该会员已使用本站2年以上
  • LMC7221BIM5X
  • 数量6919 
  • 厂家NS 
  • 封装SOT23-5 
  • 批号2024+ 
  • 原装正品 一手现货 假一赔百
  • QQ:2881951980QQ:2881951980 复制
  • 15873513267 QQ:2881951980
  • LMC7221BIM5X/NOPB图
  • 深圳市炎凯科技有限公司

     该会员已使用本站7年以上
  • LMC7221BIM5X/NOPB
  • 数量2394 
  • 厂家TI 
  • 封装SOT23-5 
  • 批号24+ 
  • 原装现货
  • QQ:354696650QQ:354696650 复制
    QQ:2850471056QQ:2850471056 复制
  • 0755-89587732 QQ:354696650QQ:2850471056
  • LMC7221BIM5X图
  • 深圳市高捷芯城科技有限公司

     该会员已使用本站11年以上
  • LMC7221BIM5X
  • 数量9908 
  • 厂家TI(德州仪器) 
  • 封装SOT-23-5 
  • 批号23+ 
  • 支持大陆交货,美金交易。原装现货库存。
  • QQ:3007977934QQ:3007977934 复制
    QQ:3007947087QQ:3007947087 复制
  • 0755-83062789 QQ:3007977934QQ:3007947087
  • LMC7221BIM5X图
  • 深圳市得捷芯城科技有限公司

     该会员已使用本站11年以上
  • LMC7221BIM5X
  • 数量9000 
  • 厂家NATIONAL 
  • 封装NA/ 
  • 批号23+ 
  • 优势代理渠道,原装正品,可全系列订货开增值税票
  • QQ:3007977934QQ:3007977934 复制
    QQ:3007947087QQ:3007947087 复制
  • 0755-82546830 QQ:3007977934QQ:3007947087
  • LMC7221BIM5X图
  • 深圳市亿智腾科技有限公司

     该会员已使用本站8年以上
  • LMC7221BIM5X
  • 数量18560 
  • 厂家NS 
  • 封装SOT23-5 
  • 批号16PB 
  • 假一赔十★全新原装现货★★特价供应★工厂客户可放款
  • QQ:799387964QQ:799387964 复制
    QQ:2777237833QQ:2777237833 复制
  • 0755-82566711 QQ:799387964QQ:2777237833
  • LMC7221BIM5X/NOPB图
  • 深圳市鹏和科技有限公司

     该会员已使用本站16年以上
  • LMC7221BIM5X/NOPB
  • 数量20867 
  • 厂家TI 
  • 封装SOT-23 
  • 批号23+ 
  • 原装正品 代理渠道
  • QQ:3004290789QQ:3004290789 复制
    QQ:3004290786QQ:3004290786 复制
  • 755-83990319 QQ:3004290789QQ:3004290786
  • LMC7221BIM5X图
  • 深圳市华斯顿电子科技有限公司

     该会员已使用本站16年以上
  • LMC7221BIM5X
  • 数量13050 
  • 厂家NS 
  • 封装SOT23PB 
  • 批号2023+ 
  • 绝对原装正品现货/优势渠道商、原盘原包原盒
  • QQ:1002316308QQ:1002316308 复制
    QQ:515102657QQ:515102657 复制
  • 深圳分公司0755-83777708“进口原装正品专供” QQ:1002316308QQ:515102657
  • LMC7221BIM5X图
  • 深圳市华斯顿电子科技有限公司

     该会员已使用本站16年以上
  • LMC7221BIM5X
  • 数量51950 
  • 厂家NS原装 
  • 封装SOT23-5 
  • 批号2023+ 
  • 绝对原装全新正品现货/优势渠道商、原盘原包原盒
  • QQ:364510898QQ:364510898 复制
    QQ:515102657QQ:515102657 复制
  • 0755-83777708“进口原装正品专供” QQ:364510898QQ:515102657
  • LMC7221BIM5X图
  • 深圳市欧瑞芯科技有限公司

     该会员已使用本站11年以上
  • LMC7221BIM5X
  • 数量10000 
  • 厂家TI(德州仪器) 
  • 封装SC-74A,SOT-753 
  • 批号23+/24+ 
  • 绝对原装正品,可开13%专票,欢迎采购!!!
  • QQ:3354557638QQ:3354557638 复制
    QQ:3354557638QQ:3354557638 复制
  • 18565729389 QQ:3354557638QQ:3354557638
  • LMC7221BIM5X图
  • 绿盛电子(香港)有限公司

     该会员已使用本站12年以上
  • LMC7221BIM5X
  • 数量2015 
  • 厂家NS 
  • 封装SOP/DIP 
  • 批号19889 
  • ★一级代理原装现货,特价热卖!
  • QQ:2752732883QQ:2752732883 复制
    QQ:240616963QQ:240616963 复制
  • 0755-25165869 QQ:2752732883QQ:240616963

产品型号LMC7221BIM5X的概述

芯片LMC7221BIM5X概述 LMC7221BIM5X是一款由德州仪器(Texas Instruments)公司设计和制造的高性能运算放大器。该芯片以其优异的线性性能、低噪声特性以及宽广的带宽而闻名,广泛应用于音频信号处理、传感器信号调理以及其他需要高准确度和高线性度的电子设备中。LMC7221BIM5X的设计旨在满足现代电子系统对高精度和高可靠性的要求,成为了研究、实验和工业应用中的重要组件之一。 LMC7221BIM5X的详细参数 LMC7221BIM5X在技术参数上具备如下特点: - 单电源或双电源供电:该芯片支持单极性电源供电(如 +5V,+15V)以及双极性电源供电(如 ±15V),提供了应用上的灵活性。 - 增益带宽积: LMC7221BIM5X的增益带宽积达到了6 MHz,意味着其在较高增益下仍能够维持相对可观的频率响应。 - 输入偏置电流:芯片的输入偏置电流非常低,...

产品型号LMC7221BIM5X的Datasheet PDF文件预览

September 1999  
LMC7221  
Tiny CMOS Comparator with Rail-To-Rail Input and Open  
Drain Output  
n Guaranteed specs at 2.7V, 5V, 15V supplies  
n Typical supply current 7 µA at 5V  
The LM7221 is a micropower CMOS comparator available in  
n Response time of 4 µs at 5V  
General Description  
the space saving SOT23-5 package. This makes this com-  
parator ideal for space and weight critical designs. The  
LMC7221 is also available in the SO-8 package. The  
n LMC7221 — open drain output  
n Input common-mode range beyond V− and V+  
n Low input current  
LMC7221 is supplied in two offset voltage grades, 5 mV and  
15 mV.  
Applications  
The open drain output can be pulled up with a resistor to a  
voltage which can be higher or lower than the supply  
voltage — this makes the part useful for mixed voltage sys-  
tems.  
n Mixed voltage battery powered products  
n Notebooks and PDAs  
n PCMCIA cards  
For a tiny comparator with a push-pull output, please see the  
LMC7211 datasheet.  
n Mobile communications  
n Alarm and security circuits  
n Driving low current LEDs  
n Direct sensor interface  
Features  
n Tiny SOT 23-5 package saves space  
n Package is less than 1.43 mm thick  
Connection Diagrams  
8–Pin SO-8  
5-Pin SOT23-5  
DS012346-1  
DS012346-2  
Top View  
Top View  
Ordering Information  
Package  
Ordering  
Information  
NSC Drawing  
Number  
M08A  
Package  
Transport Media  
Marking  
LMC7221AIM  
LMC7221AIMX  
LMC7221BIM  
LMC7221BIMX  
LMC7221AIM5  
LMC7221AIM Rails  
M08A  
LMC7221AIM 2.5k Units Tape and Reel  
LMC7221BIM Rails  
8-Pin SO-8  
M08A  
M08A  
LMC7221BIM 2.5k Units Tape and Reel  
MA05A  
C01A  
C01A  
C01B  
C01B  
1k Units Tape and Reel  
3k Units Tape and Reel  
1k Units Tape and Reel  
3k Units Tape and Reel  
LMC7221AIM5X MA05A  
LMC7221BIM5 MA05A  
LMC7221BIM5X MA05A  
5-Pin SOT 23-5  
© 1999 National Semiconductor Corporation  
DS012346  
www.national.com  
Absolute Maximum Ratings (Note 1)  
If Military/Aerospace specified devices are required,  
please contact the National Semiconductor Sales Office/  
Distributors for availability and specifications.  
(soldering, 10 sec.)  
Storage Temperature Range  
Junction Temperature  
(Note 4)  
260˚C  
−65˚C to +150˚C  
150˚C  
ESD Tolerance (Note 2)  
Differential Input Voltage  
Voltage at Input  
2 kV  
Operating Ratings (Note 1)  
(VCC) +0.3V to (−VCC)−0.3V  
(VCC) + 0.3V to (−VCC)−0.3V  
Supply Voltage  
2.7 VCC 15V  
Voltage at Output Pin  
Supply Voltage (V+–V)  
Current at Input Pin  
(Note 7)  
15V  
16V  
Junction Temperature Range  
LMC7221AI, LMC7221BI  
−40˚C TJ +85˚C  
Thermal Resistance (θJA  
)
±
5 mA  
SO-8 Package,  
Current at Output Pin  
(Notes 3, 8)  
8-Pin Surface Mount  
M05A Package,  
180˚C/W  
325˚C/W  
±
30 mA  
40 mA  
Current at Power Supply Pin  
Lead Temperature  
5-Pin Surface Mount  
2.7V Electrical Characteristics  
+
=
=
= = =  
0V, VCM VO V+/2. Boldface limits apply  
Unless otherwise specified, all limits guaranteed for TJ 25˚C, V  
at the temperature extremes  
2.7V, V  
Typ  
LMC7221AI  
LMC7221BI  
Limit  
Symbol  
VOS  
Parameter  
Conditions  
(Note 5)  
Limit  
Units  
(Note 6)  
(Note 6)  
15  
Input Offset Voltage  
3
5
mV  
max  
8
18  
TCVOS  
Input Offset Voltage  
Temperature Drift  
Input Offset Voltage  
Average Drift  
1.0  
3.3  
µV/˚C  
(Note 10)  
µV/Month  
IB  
Input Current  
0.04  
0.02  
75  
pA  
pA  
dB  
IOS  
Input Offset Current  
Common Mode  
Rejection Ratio  
Power Supply  
CMRR  
0V VCM 2.7V  
2.7V V+ 15V  
PSRR  
80  
dB  
Rejection Ratio  
Voltage Gain  
AV  
100  
3.0  
dB  
V
>
CMVR  
Input Common-Mode  
Voltage Range  
CMRR 55 dB  
2.9  
2.7  
−0.2  
0.0  
0.3  
0.4  
12  
2.9  
2.7  
−0.2  
0.0  
0.3  
0.4  
12  
min  
V
>
CMRR 55 dB  
−0.3  
0.2  
7
max  
V
=
Iload 2.5 mA  
VOL  
Output Voltage Low  
Supply Current  
max  
µA  
max  
=
VOUT low  
IS  
14  
14  
www.national.com  
2
5.0V and 15.0V Electrical Characteristics  
+
+
=
=
= = =  
0V, VCM VO V /2. Boldface lim-  
Unless otherwise specified, all limits guaranteed for TJ 25˚C, V  
5.0V and 15V, V  
its apply at the temperature extremes  
Typ  
LMC7221AI  
LMC7221BI  
Limit  
Symbol  
VOS  
Parameter  
Conditions  
(Note 5)  
Limit  
Units  
(Note 6)  
(Note 6)  
15  
Input Offset Voltage  
3
5
mV  
max  
8
18  
V+ 5V  
1.0  
4.0  
3.3  
4.0  
0.04  
0.02  
75  
µV/˚C  
=
TCVOS  
Input Offset Voltage  
Temperature Drift  
Input Offset Voltage  
Average Drift  
V+ 15V  
=
V+ 5V (Note 10)  
=
µV/Month  
V+ 15V (Note 10)  
=
IB  
Input Current  
pA  
pA  
dB  
dB  
dB  
IOS  
Input Offset Current  
Common Mode  
Rejection Ration  
Power Supply  
=
V+ 5.0V  
CMRR  
=
V+ 15.0V  
5V V+ 10V  
82  
PSRR  
80  
Rejection Ratio  
Voltage Gain  
AV  
100  
5.3  
dB  
V
=
CMVR  
Input Common-Mode  
Voltage Range  
V+ 5.0V  
5.2  
5.0  
5.2  
5.0  
>
CMRR 55 dB  
min  
V
=
V+ 5.0V  
−0.3  
15.3  
−0.3  
0.2  
0.2  
7
−0.2  
0.0  
−0.2  
0.0  
>
CMRR 55 dB  
max  
V
=
V+ 15.0V  
15.2  
15.0  
−0.2  
0.0  
15.2  
15.0  
−0.2  
0.0  
>
CMRR 55 dB  
min  
V
=
V+ 15.0V  
>
CMRR 55 dB  
max  
mV  
max  
mV  
max  
µA  
=
VOL  
Output Voltage Low  
V+ 5V  
0.40  
0.55  
0.40  
0.55  
14  
0.40  
0.55  
0.40  
0.55  
14  
=
Iload 5 mA  
=
V+ 15V  
=
Iload 5 mA  
=
IS  
Supply Current  
VOUT Low  
18  
18  
max  
mA  
ISC  
Short Circuit Current  
Sinking (Note 8)  
45  
Leakage Characteristics  
=
TJ 25˚C  
Typ  
LMC7221AI  
Limit  
LMC7221BI  
Limit  
Symbol  
Parameter  
Conditions  
(Note 5)  
Units  
(Note 6)  
(Note 6)  
=
V+ 2.7V  
ILEAKAGE  
Output Leakage  
Current  
=
V
IN(+) 0.5V  
0.1  
500  
500  
nA  
=
V
IN(−) 0V  
=
VOUT 15V  
3
www.national.com  
AC Electrical Characteristics  
+
+
=
=
= = =  
0V, VCM VO V /2. Boldface limits apply at  
Unless otherwise specified, all limits guaranteed for TJ 25˚C, V  
the temperature extreme  
5V, V  
Typ  
LMC7221AI LMC7221BI  
Symbol  
trise  
Parameter  
Rise Time  
Conditions  
(Note 5)  
Limit  
Limit  
Units  
µs  
(Note 6)  
(Note 6)  
=
=
f
10 kHz, CL 50 pF, (Note 9)  
0.3  
0.3  
=
Overdrive 10 mV, 5 kPullup  
=
=
tfall  
Fall Time  
f
10 kHz, CL 50 pF, (Note 9)  
µs  
=
Overdrive 10 mV, 5 kPullup  
=
tPHL  
Propagation Delay  
(High to Low)  
(Note 11)  
f
10 kHz,  
10 mV  
10  
4
µs  
=
CL 50 pF,  
5 kPullup  
(Note 9)  
100 mV  
=
V+ 2.7V,  
10 mV  
10  
4
µs  
=
f
10 kHz,  
=
CL 50 pF,  
5 kPullup  
(Note 9)  
100 mV  
=
tPLH  
Propagation Delay  
(Low to High)  
(Note 11)  
f
10 kHz,  
10 mV  
6
4
µs  
µs  
=
CL 50 pF,  
5 kPullup  
(Note 9)  
100 mV  
=
V+ 2.7V,  
10 mV  
7
4
=
f
10 kHz,  
=
CL 50 pF,  
5 kPullup  
(Note 9)  
100 mV  
Note 1: Absolute Maximum Ratings indicate limits beyond which damage to the device may occur. Operating Ratings indicate conditions for which the device is in-  
tended to be functional, but specific performance is not guaranteed. For guaranteed specifications and the test conditions, see the Electrical Characteristics.  
Note 2: Human body model, 1.5 kin series with 100 pF.  
Note 3: Applies to both single-supply and split-supply operation. Continuous short circuit operation at elevated ambient temperature can result in exceeding the  
±
maximum allowed junction temperature of 150˚C. Output currents in excess of 30 mA may adversely affect reliability.  
Note 4: The maximum power dissipation is a function of T , θ , and T . The maximum allowable power dissipation at any ambient temperature is  
J(max) JA  
A
=
(T  
J(max)  
Note 5:  
P
− T )/θ . All numbers apply for packages soldered directly into a PC board.  
D
A
JA  
Note 6: Typical values represent the most likely parametric norm.  
Note 7: All limits are guaranteed by testing or statistical analysis.  
Note 8: Limiting input pin current is only necessary for input voltages which exceed the absolute maximum input voltage rating.  
Note 9: Do not short circuit the output to V+ when V+ is greater than 12V or reliability will be adversely affected.  
Note 10:  
C includes the probe and test jig capacitance.  
L
Note 11: Input offset voltage average drift is calculated by dividing the accelerated operating life V drift by the equivalent operational time. This represents worst  
OS  
case input conditions and includes the first 30 days of drift.  
Note 12: Input step voltage for propagation delay measurement is 2V.  
www.national.com  
4
Typical Performance Characteristics  
Supply Current vs  
Supply Voltage  
Supply Current vs  
Temperature while Sinking  
Output Sinking Current vs  
Supply Voltage  
DS012346-3  
DS012346-4  
DS012346-5  
Output Sinking Current vs  
Output Sinking Current vs  
Response Time for Various  
Input Overdrives −tPHL  
@
Output Voltage 5V  
@
Output Voltage 15V  
DS012346-6  
DS012346-7  
DS012346-8  
Response Time vs Various  
Input Overdrives −tPHL  
Response Time vs Various  
Input Overdrives −tPHL  
Input Bias Current vs  
Common Mode Voltage  
DS012346-11  
DS012346-9  
DS012346-10  
5
www.national.com  
Typical Performance Characteristics (Continued)  
Input Bias Current vs  
Common Mode Voltage  
Input Bias Current vs  
Common Mode Voltage  
Input Bias Current vs  
Temperature  
DS012346-12  
DS012346-13  
DS012346-14  
Leakage Current vs  
Supply Voltage  
DS012346-15  
Application Information  
1.0 Benefits of the LMC7221 Tiny Comparator  
Digital Outputs Representing Signal Level. Comparators  
provide a high or low digital output depending on the voltage  
levels of the (+) and (−) inputs. This makes comparators use-  
ful for interfacing analog signals to microprocessors and  
other digital circuits. The LMC7221 can be thought of as a  
one-bit a/d converter.  
Size. The small footprint of the SOT 23-5 packaged Tiny  
Comparator, (0.120 x 0.118 inches, 3.05 x 3.00 mm) saves  
space on printed circuit boards, and enable the design of  
smaller electronic products. Because they are easier to  
carry, many customers prefer smaller and lighter products.  
Open Drain Output. The open drain output is like the open  
collector output of a logic gate. This makes the LMC7221  
very useful for mixed voltage systems.  
Height. The height (0.056 inches, 1.43 mm) of the Tiny  
Comparator makes it possible to use it in PCMCIA type III  
cards.  
Driving LEDs (Light Emitting Diodes). With a 5 volt power  
supply, the LMC7221’s output sinking current can drive  
small, high efficiency LEDs for indicator and test point cir-  
cuits. The small size of the Tiny package makes it easy to  
find space to add this feature to even compact designs.  
Simplified Board Layout. The Tiny Comparator can sim-  
plify board layout in several ways. First, by placing a com-  
parator where comparators are needed, instead of routing  
signals to a dual or quad device, long pc traces may be  
avoided.  
Input range to Beyond Rail to Rail. The input common  
mode range of the LMC7221 is slightly larger than the actual  
power supply range. This wide input range means that the  
comparator can be used to sense signals close to the power  
supply rails. This wide input range can make design easier  
by eliminating voltage dividers, amplifiers, and other front  
end circuits previously used to match signals to the limited  
input range of earlier comparators. This is useful to power  
supply monitoring circuits which need to sense their own  
power supply, and compare it to a reference voltage which is  
close to the power supply voltage. The wide input range can  
also be useful for sensing the voltage drop across a current  
sense resistor for battery chargers.  
By using multiple Tiny Comparators instead of duals or  
quads, complex signal routing and possibly crosstalk can be  
reduced.  
Low Supply Current. The typical 7 µA supply current of the  
LMC7221 extends battery life in portable applications, and  
may allow the reduction of the size of batteries in some ap-  
plications.  
Wide Voltage Range. The LMC7221 is characterized at  
15V, 5V and 2.7V. Performance data is provided at these  
popular voltages. This wide voltage range makes the  
LMC7221 a good choice for devices where the voltage may  
vary over the life of the batteries.  
www.national.com  
6
3.0 Open Drain Output  
Output Stage  
Application Information (Continued)  
Zero Crossing Detector. Since the LMC7221’s common  
mode input range extends below ground even when pow-  
ered by a single positive supply, it can be used with large in-  
put resistors as a zero crossing detector.  
Low Input Currents and High Input Impedance. These  
characteristics allow the LMC7221 to be used to sense high  
impedance signals from sensors. They also make it possible  
to use the LMC7221 in timing circuits built with large value  
resistors. This can reduce the power dissipation of timing cir-  
cuits. For very long timing circuits, using high value resistors  
can reduce the size and cost of large value capacitors for the  
same R-C time constant.  
Direct Sensor Interfacing. The wide input voltage range  
and high impedance of the LMC7221 may make it possible  
to directly interface to a sensor without the use of amplifiers  
or bias circuits. In circuits with sensors which can produce  
outputs in the tens to hundreds of millivolts, the LMC7221  
can compare the sensor signal with an appropriately small  
reference voltage. This may be done close to ground or the  
positive supply rail. Direct sensor interfacing may eliminate  
the need for an amplifier for the sensor signal. Eliminating  
the amplifier can save cost, space, and design time.  
DS012346-17  
2.0 Low Voltage Operation  
Comparators are the common devices by which analog sig-  
nals interface with digital circuits. The LMC7221 has been  
designed to operate at supply voltages of 2.7V without sac-  
rificing performance to meet the demands of 3V digital sys-  
tems.  
At supply voltages of 2.7V, the common-mode voltage range  
extends 200 mV (guaranteed) below the negative supply.  
This feature, in addition to the comparator being able to  
sense signals near the positive rail, is extremely useful in low  
voltage applications.  
DS012346-21  
FIGURE 2.  
Figure 2 shows the difference between push-pull output and  
open drain output.  
Push pull outputs will have a conventional high or low digital  
output, the same as a logic gate. Low will be the negative  
supply rail (usually ground) and high will be the positive sup-  
ply rail.  
This is useful if the chips you are interfacing to run on the  
same supply voltage as the comparator. An example would  
be an all +5V system.  
Open drain outputs will only pull low — for the high output  
they depend on an external pull-up resistor. This can pull up  
to a voltage higher or lower than the comparator supply volt-  
age. This voltage can be as high as 15V. This makes the  
open drain parts useful in mixed voltage systems. An ex-  
ample would be where the comparator runs at 5V and the  
logic circuits are at 3.3V. The pull-up resistor would go to the  
3.3V supply.  
DS012346-16  
FIGURE 1. Even at Low-Supply Voltage of 2.7V, an  
Input Signal which Exceeds the Supply Voltages  
Produces No Phase Inversion at the Output  
At V+ 2.7V propagation delays are tPLH 4 µs and tPHL  
4 µs with overdrives of 100 mV.  
=
=
=
Open drain outputs are the CMOS equivalent of open collec-  
tor outputs.  
Please refer to the performance curves for more extensive  
characterization.  
4.0 Output Short Circuit Current  
The LMC7221 has short circuit protection of 40 mA. How-  
ever, it is not designed to withstand continuous short circuits,  
transient voltage or current spikes, or shorts to any voltage  
beyond the supplies. A resistor in series with the output  
7
www.national.com  
8.0 Additional SOT23-5 Tiny Devices  
Application Information (Continued)  
National Semiconductor has additional parts available in the  
space saving SOT23 Tiny package, including amplifiers,  
voltage references, and voltage regulators. These devices  
include —  
should reduce the effect of shorts. For outputs which send  
signals off PC boards additional protection devices, such as  
diodes to the supply rails, and varistors may be used.  
LMC7101 1 MHz gain-bandwidth rail-to-rail input and out-  
put amplifier — high input impedance and high  
gain 700 µA typical current 2.7V, 3V, 5V and 15V  
specifications.  
5.0 Input Protection  
If input signals are likely to exceed the common mode range  
of the LMC7221, or it is likely that signals may be present  
when power is off, damage to the LMC7221 may occur.  
Large value (100 kto M) input resistors may reduce the  
likelihood of damage by limiting the input currents. Since the  
LMC7221 has very low input leakage currents, the effect on  
accuracy will be small. Additional protection may require the  
use of diodes, as shown in Figure 3. Note that diode leakage  
current may affect accuracy during normal operation.  
LMC7111 Low power 50 kHz gain-bandwidth rail-to-rail in-  
put and output amplifier with 25 µA typical cur-  
rent specified at 2.7V, 3.0V, 3.3V, 5V and 10V.  
LM7131  
LP2980  
LM4040  
Tiny Video amp with 70 MHz gain bandwidth 3V,  
±
5V and 5V specifications.  
Micropower SOT 50 mA Ultra Low-Dropout  
Regulator.  
The R-C time constant of RIN and the diode capacitance may  
also slow response time.  
Precision micropower shunt voltage reference.  
Fixed voltages of 2.500V, 4.096V, 5.000V,  
8.192V and 10.000V.  
LM4041  
LM385  
Precision micropower shut voltage reference  
1.225V and adjustable.  
Low current voltage reference. Fixed Voltages of  
1.2V and 2.5V.  
Contact your National Semiconductor representative for the  
latest information.  
9.0 Spice Macromodel  
A Spice Macromodel is available for the LMC7221 compara-  
tor on the National Semiconductor Amplifier Macromodel  
disk. Contact your National Semiconductor representative to  
obtain the latest version.  
DS012346-18  
FIGURE 3.  
6.0 Layout Considerations  
The LMC7221 is not an especially fast comparator, so high  
speed design practices are not required. The LMC7221 is  
capable of operating with very high impedance inputs, so  
precautions should be taken to reduce noise pickup with  
high impedance ( 100 kand greater) designs and in elec-  
trically noisy environments.  
Keeping high value resistors close to the LMC7221 and mini-  
mizing the size of the input nodes is a good practice. With  
multilayer designs, try to avoid long loops which could act as  
inductors (coils). Sensors which are not close to the com-  
parator may need twisted pair or shielded connections to re-  
duce noise.  
7.0 Push-Pull Outputs, Dual Versions  
The LMC7211 is a comparator similar to the LMC7221, but  
with push-pull outputs which can source current.  
The performance of the LMC7221 is available in a dual de-  
vice. Please see the LMC6772 datasheet. For a dual device  
with push-pull outputs, please see the LMC6762 datasheet.  
Rail-to-Rail Input Low Power Comparators —  
Push-Pull Output  
LMC7221  
LMC6762  
SOT23-5, SO-8  
SO-8, DIP  
Single  
Dual  
Open Drain Output  
LMC7221  
LMC6772  
SOT23-5, SO-8  
SO-8, DIP  
Single  
Dual  
www.national.com  
8
Application Information (Continued)  
REEL DIMENSIONS  
DS012346-19  
8 mm  
7.00  
0.059 0.512 0.795 2.165  
0.331 + 0.059/−0.000 0.567  
W1+ 0.078/−0.039  
330.00 1.50 13.00 20.20 55.00  
8.40 + 1.50/−0.00  
14.40  
W1 + 2.00/−1.00  
Tape Size  
A
B
C
D
N
W1  
W2  
W3  
SOT-23-5 Tape and Reel Specification  
TAPE FORMAT  
Tape Section  
# Cavities  
0 (min)  
75 (min)  
3000  
Cavity Status  
Empty  
Cover Tape Status  
Leader  
Sealed  
Sealed  
Sealed  
Sealed  
Sealed  
Sealed  
(Start End)  
Carrier  
Empty  
Filled  
1000  
Filled  
Trailer  
125 (min)  
0 (min)  
Empty  
(Hub End)  
Empty  
9
www.national.com  
SOT-23-5 Tape and Reel Specification (Continued)  
Tape Dimensions  
DS012346-20  
±
±
±
0.315 0.012  
8 mm  
0.130  
(3.3)  
0.124  
(3.15)  
0.130  
(3.3)  
0.126  
(3.2)  
0.138 0.002  
0.055 0.004  
0.157  
(4)  
±
±
±
(3.5 0.05)  
(1.4 0.11)  
(8 0.3)  
Tape Size DIM A DIM Ao DIM B DIM Bo  
DIM F  
DIM Ko  
DIM P1  
DIM W  
www.national.com  
10  
Physical Dimensions inches (millimeters) unless otherwise noted  
5-Pin SOT Package  
Order Number LMC7221AIM5, LMC7221AIM5X, LMC7221BIM5, or LMC7221BIMX  
NS Package Number MA05A  
8-Pin Small Outline Package  
Order Number LMC7221AIM, LMC7221AIMX, LMC7221BIM, or LMC7221BIMX  
NS Package Number M08A  
11  
www.national.com  
Notes  
LIFE SUPPORT POLICY  
NATIONAL’S PRODUCTS ARE NOT AUTHORIZED FOR USE AS CRITICAL COMPONENTS IN LIFE SUPPORT  
DEVICES OR SYSTEMS WITHOUT THE EXPRESS WRITTEN APPROVAL OF THE PRESIDENT AND GENERAL  
COUNSEL OF NATIONAL SEMICONDUCTOR CORPORATION. As used herein:  
1. Life support devices or systems are devices or  
systems which, (a) are intended for surgical implant  
into the body, or (b) support or sustain life, and  
whose failure to perform when properly used in  
accordance with instructions for use provided in the  
labeling, can be reasonably expected to result in a  
significant injury to the user.  
2. A critical component is any component of a life  
support device or system whose failure to perform  
can be reasonably expected to cause the failure of  
the life support device or system, or to affect its  
safety or effectiveness.  
National Semiconductor  
Corporation  
Americas  
Tel: 1-800-272-9959  
Fax: 1-800-737-7018  
Email: support@nsc.com  
National Semiconductor  
Europe  
National Semiconductor  
Asia Pacific Customer  
Response Group  
Tel: 65-2544466  
Fax: 65-2504466  
National Semiconductor  
Japan Ltd.  
Tel: 81-3-5639-7560  
Fax: 81-3-5639-7507  
Fax: +49 (0) 1 80-530 85 86  
Email: europe.support@nsc.com  
Deutsch Tel: +49 (0) 1 80-530 85 85  
English Tel: +49 (0) 1 80-532 78 32  
Français Tel: +49 (0) 1 80-532 93 58  
Italiano Tel: +49 (0) 1 80-534 16 80  
Email: sea.support@nsc.com  
www.national.com  
National does not assume any responsibility for use of any circuitry described, no circuit patent licenses are implied and National reserves the right at any time without notice to change said circuitry and specifications.  
配单直通车
LMC7221BIM5X产品参数
型号:LMC7221BIM5X
Brand Name:Texas Instruments
是否Rohs认证: 不符合
生命周期:Obsolete
零件包装代码:SOT-23
包装说明:SOT-23, 5 PIN
针数:5
Reach Compliance Code:not_compliant
ECCN代码:EAR99
HTS代码:8542.33.00.01
风险等级:5.22
放大器类型:COMPARATOR
最大平均偏置电流 (IIB):4e-8 µA
最大输入失调电压:18000 µV
JESD-30 代码:R-PDSO-G5
JESD-609代码:e0
长度:2.92 mm
湿度敏感等级:1
负供电电压上限:
标称负供电电压 (Vsup):
功能数量:1
端子数量:5
最高工作温度:85 °C
最低工作温度:-40 °C
输出类型:OPEN-DRAIN
封装主体材料:PLASTIC/EPOXY
封装代码:LSSOP
封装等效代码:TSOP5/6,.11,37
封装形状:RECTANGULAR
封装形式:SMALL OUTLINE, LOW PROFILE, SHRINK PITCH
峰值回流温度(摄氏度):260
电源:2.7/15 V
认证状态:Not Qualified
标称响应时间:7000 ns
座面最大高度:1.22 mm
子类别:Comparator
最大压摆率:0.018 mA
供电电压上限:16 V
标称供电电压 (Vsup):5 V
表面贴装:YES
技术:CMOS
温度等级:INDUSTRIAL
端子面层:Tin/Lead (Sn/Pb)
端子形式:GULL WING
端子节距:0.953 mm
端子位置:DUAL
处于峰值回流温度下的最长时间:NOT SPECIFIED
宽度:1.6 mm
Base Number Matches:1
  •  
  • 供货商
  • 型号 *
  • 数量*
  • 厂商
  • 封装
  • 批号
  • 交易说明
  • 询价
批量询价选中的记录已选中0条,每次最多15条。
 复制成功!