LM258 PDF Datasheet浏览和下载

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LM258
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526 K
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24 Pages
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未知厂家 [ ETC ]
PCB Prototype
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LM158/LM258/LM358/LM2904 Low Power Dual Operational Amplifiers
March 2002
LM158/LM258/LM358/LM2904
Low Power Dual Operational Amplifiers
General Description
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.
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.
The LM358 and LM2904 are available in a chip sized pack-
age (8-Bump micro SMD) using National’s micro SMD pack-
age technology.
Advantages
n
Two internally compensated op amps
n
Eliminates need for dual supplies
n
Allows direct sensing near GND and V
OUT
also goes to
GND
n
Compatible with all forms of logic
n
Power drain suitable for battery operation
n
Pin-out same as LM1558/LM1458 dual op amp
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
— 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
n
Large output voltage swing: 0V to V
+
− 1.5V
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
The unity gain cross frequency is temperature
compensated.
n
The input bias current is also temperature compensated.
Voltage Controlled Oscillator (VCO)
00778723
© 2002 National Semiconductor Corporation
DS007787
www.national.com