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LM2904IBPX

更新时间: 2024-11-17 22:57:31
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25页 1005K
描述
Low Power Dual Operational Amplifiers

LM2904IBPX 数据手册

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October 2005  
LM158/LM258/LM358/LM2904  
Low Power Dual Operational Amplifiers  
General Description  
Advantages  
n Two internally compensated op amps  
n Eliminates need for dual supplies  
The LM158 series consists of two independent, high gain,  
internally frequency compensated operational amplifiers  
which were designed specifically to operate from a single  
power supply over a wide range of voltages. Operation from  
split power supplies is also possible and the low power  
supply current drain is independent of the magnitude of the  
power supply voltage.  
n Allows direct sensing near GND and VOUT also goes to  
GND  
n Compatible with all forms of logic  
n Power drain suitable for battery operation  
Application areas include transducer amplifiers, dc gain  
blocks and all the conventional op amp circuits which now  
can be more easily implemented in single power supply  
systems. For example, the LM158 series can be directly  
operated off of the standard +5V power supply voltage which  
is used in digital systems and will easily provide the required  
interface electronics without requiring the additional 15V  
power supplies.  
Features  
n Available in 8-Bump micro SMD chip sized package,  
(See AN-1112)  
n Internally frequency compensated for unity gain  
n Large dc voltage gain: 100 dB  
n Wide bandwidth (unity gain): 1 MHz  
(temperature compensated)  
n Wide power supply range:  
— Single supply: 3V to 32V  
The LM358 and LM2904 are available in a chip sized pack-  
age (8-Bump micro SMD) using National’s micro SMD pack-  
age technology.  
— or dual supplies:  
1.5V to 16V  
n Very low supply current drain (500 µA)essentially  
independent of supply voltage  
n Low input offset voltage: 2 mV  
n Input common-mode voltage range includes ground  
n Differential input voltage range equal to the power  
supply voltage  
Unique Characteristics  
n In the linear mode the input common-mode voltage  
range includes ground and the output voltage can also  
swing to ground, even though operated from only a  
single power supply voltage.  
n Large output voltage swing  
n The unity gain cross frequency is temperature  
compensated.  
n The input bias current is also temperature compensated.  
Voltage Controlled Oscillator (VCO)  
00778723  
© 2005 National Semiconductor Corporation  
DS007787  
www.national.com  

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