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LM121AH/883

更新时间： 2024-09-15 22:05:31
品牌 Logo 应用领域
美国国家半导体 - NSC 运算放大器放大器电路
页数 文件大小 规格书
11页 210K
描述
LM221/LM321 Precision Preamplifiers

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中文翻译

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LM121AH/883 技术参数

是否Rohs认证： 不符合生命周期：Obsolete
Reach Compliance Code：compliant风险等级：5.92
放大器类型：OPERATIONAL AMPLIFIER架构：VOLTAGE-FEEDBACK
25C 时的最大偏置电流 (IIB)：0.1 µA频率补偿：YES
最大输入失调电压：650 µVJESD-30 代码：O-MBCY-W8
JESD-609代码：e0低-失调：YES
功能数量：1端子数量：8
最高工作温度：125 °C最低工作温度：-55 °C
封装主体材料：METAL封装等效代码：CAN8,.2
封装形状：ROUND封装形式：CYLINDRICAL
电源：+-3/+-20 V可编程功率：YES
认证状态：Not Qualified筛选级别：38535Q/M;38534H;883B
子类别：Operational Amplifiers最大压摆率：2.5 mA
供电电压上限：20 V技术：BIPOLAR
温度等级：MILITARY端子面层：Tin/Lead (Sn/Pb)
端子形式：WIRE端子位置：BOTTOM
最小电压增益：20Base Number Matches：1

LM121AH/883 数据手册

 浏览型号LM121AH/883的Datasheet PDF文件第2页浏览型号LM121AH/883的Datasheet PDF文件第3页浏览型号LM121AH/883的Datasheet PDF文件第4页浏览型号LM121AH/883的Datasheet PDF文件第5页浏览型号LM121AH/883的Datasheet PDF文件第6页浏览型号LM121AH/883的Datasheet PDF文件第7页 
February 1995  
LM221/LM321 Precision Preamplifiers  
General Description  
The LM221 series are precision preamplifiers designed to  
operate with general purpose operational amplifiers to dras-  
tically decrease dc errors. Drift, bias current, common mode  
and supply rejection are more than a factor of 50 better than  
standard op amps alone. Further, the added dc gain of the  
LM221 decreases the closed loop gain error.  
the LM221. The full differential input and high common-  
mode rejection are another advantage over choppers. For  
applications where low bias current is more important than  
drift, the operating current can be reduced to low values.  
High operating currents can be used for low voltage noise  
with low source resistance. The programmable operating  
current of the LM221 allows tailoring the input characteris-  
tics to match those of specialized op amps.  
g
The LM221 series operates with supply voltages from 3V  
to 20V and has sufficient supply rejection to operate from  
g
b a  
The LM221 is specified over a 25 C to 85 C range and  
unregulated supplies. The operating current is programma-  
ble from 5 mA to 200 mA so bias current, offset current, gain  
and noise can be optimized for the particular application  
while still realizing very low drift. Super-gain transistors are  
used for the input stage so input error currents are lower  
than conventional amplifiers at the same operating current.  
Further, the initial offset voltage is easily nulled to zero.  
§
§
the LM321 over a 0 C to 70 C temperature range.  
a
§
§
Features  
Y
Guaranteed drift of LM321AÐ0.2 mV/ C  
§
Y
Y
Y
Y
Y
Y
Guaranteed drift of LM221 seriesÐ1 mV/ C  
§
Offset voltage less than 0.4 mV  
Bias current less than 10 nA at 10 mA operating current  
CMRR 126 dB minimum  
The extremely low drift of the LM221 will improve accuracy  
on almost any precision dc circuit. For example, instrumen-  
tation amplifier, strain gauge amplifiers and thermocouple  
amplifiers now using chopper amplifiers can be made with  
120 dB supply rejection  
Easily nulled offset voltage  
Typical Applications  
Thermocouple Amplifier with Cold Junction Compensation  
*Set for 2.98V at output with LM113  
shorted. Output should equal ambi-  
ent temperature at 10 mV/ K.  
§
Adjust for output reading in C.  
²
§
TL/H/7769–1  
C
1995 National Semiconductor Corporation  
TL/H/7769  
RRD-B30M115/Printed in U. S. A.  
1234567...11

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 		Analog Circuit
LM121H/883 NSC

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LM121H/883B NSC

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