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PDF ( 数据手册 , 数据表 ) LM301A

零件编号 LM301A
描述 Operational Amplifiers
制造商 National Semiconductor
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LM301A 数据手册, 描述, 功能
September 1999
LM101A/LM201A/LM301A
Operational Amplifiers
General Description
The LM101A series are general purpose operational amplifi-
ers which feature improved performance over industry stan-
dards like the LM709. Advanced processing techniques
make possible an order of magnitude reduction in input cur-
rents, and a redesign of the biasing circuitry reduces the
temperature drift of input current. Improved specifications in-
clude:
Offset voltage 3 mV maximum over temperature
(LM101A/LM201A)
Input current 100 nA maximum over temperature
(LM101A/LM201A)
Offset current 20 nA maximum over temperature
(LM101A/LM201A)
Guaranteed drift characteristics
Offsets guaranteed over entire common mode and sup-
ply voltage ranges
Slew rate of 10V/µs as a summing amplifier
This amplifier offers many features which make its appli-
cation nearly foolproof: overload protection on the input
Connection Diagrams (Top View)
Dual-In-Line Package
and output, no latch-up when the common mode range is
exceeded, and freedom from oscillations and compensa-
tion with a single 30 pF capacitor. It has advantages over
internally compensated amplifiers in that the frequency
compensation can be tailored to the particular applica-
tion. For example, in low frequency circuits it can be over-
compensated for increased stability margin. Or the com-
pensation can be optimized to give more than a factor of
ten improvement in high frequency performance for most
applications.
In addition, the device provides better accuracy and lower
noise in high impedance circuitry. The low input currents
also make it particularly well suited for long interval inte-
grators or timers, sample and hold circuits and low fre-
quency waveform generators. Further, replacing circuits
where matched transistor pairs buffer the inputs of con-
ventional IC op amps, it can give lower offset voltage and
a drift at a lower cost.
The LM101A is guaranteed over a temperature range of
−55˚C to +125˚C, the LM201A from −25˚C to +85˚C, and
the LM301A from 0˚C to +70˚C.
Ceramic Flatpack Package
DS007752-4
Order Number LM101AJ, LM101J/883 (Note 1),
LM201AN or LM301AN
See NS Package Number J08A or N08E
DS007752-40
Order Number LM101AW/883 or LM101W/883
See NS Package Number W10A
© 1999 National Semiconductor Corporation DS007752
www.national.com







LM301A pdf, 数据表
Typical Applications (Note 9)
Variable Capacitance Multiplier
Simulated Inductor
DS007752-20
L R1 R2 C1
RS = R2
RP = R1
Fast Inverting Amplifier
with High Input Impedance
DS007752-21
Inverting Amplifier
with Balancing Circuit
DS007752-22
DS007752-23
May be zero or equal to parallel combination of R1 and R2 for minimum
offset.
Sine Wave Oscillator
fo = 10 kHz
www.national.com
DS007752-24
8







LM301A equivalent, schematic
Physical Dimensions inches (millimeters) unless otherwise noted (Continued)
Ceramic Dual-In-Line Package (J)
Order Number LM101AJ-14/883
NS Package Number J14A
www.national.com
Molded Dual-In-Line Package (N)
Order Number LM201AN or LM301AN
NS Package Number N08E
16










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