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/s as a summing amplifier
This amplifier offers many features which make its appli-
cation nearly foolproof: overload protection on the input
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
-55C to +125C, the LM201A from -25C to +85C, and
the LM301A from 0C to +70C.
Connection Diagrams
(Top View)
Dual-In-Line Package
DS007752-4
Order Number LM101AJ, LM101J/883 (Note 1),
LM201AN or LM301AN
See NS Package Number J08A or N08E
Ceramic Flatpack Package
DS007752-40
Order Number LM101AW/883 or LM101W/883
See NS Package Number W10A
September 1999
LM101A/LM201A/LM301A
Operational
Amplifiers
1999 National Semiconductor Corporation
DS007752
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Connection Diagrams
(Top View) (Continued)
Note 1: Available per JM38510/10103.
Metal Can Package
DS007752-2
Note: Pin 4 connected to case.
Order Number LM101AH, LM101AH/883 (Note 1),
LM201AH or LM301AH
See NS Package Number H08C
Dual-In-Line Package
DS007752-3
Order Number LM101AJ-14/883 (Note 1)
See NS Package Number J14A
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2
Absolute Maximum Ratings
(Note 2)
If Military/Aerospace specified devices are required, please contact the National Semiconductor Sales Office/
Distributors for availability and specifications.
LM101A/LM201A
LM301A
Supply Voltage
22V
18V
Differential Input Voltage
30V
30V
Input Voltage (Note 3)
15V
15V
Output Short Circuit Duration (Note 4)
Continuous
Continuous
Operating Ambient Temp. Range
-55C to +125C (LM101A)
0C to +70C
-25C to +85C (LM201A)
T
J
Max
H-Package
150C
100C
N-Package
150C
100C
J-Package
150C
100C
Power Dissipation at T
A
= 25C
H-Package (Still Air)
500 mW
300 mW
(400 LF/Min Air Flow)
1200 mW
700 mW
N-Package
900 mW
500 mW
J-Package
1000 mW
650 mW
Thermal Resistance (Typical)
jA
H-Package (Still Air)
165C/W
165C/W
(400 LF/Min Air Flow)
67C/W
67C/W
N Package
135C/W
135C/W
J-Package
110C/W
110CmW
(Typical)
jC
H-Package
25C/W
25C/W
Storage Temperature Range
-65C to +150C
-65C to +150C
Lead Temperature (Soldering, 10 sec.)
Metal Can or Ceramic
300C
300C
Plastic
260C
260C
ESD Tolerance (Note 7)
2000V
2000V
Electrical Characteristics
(Note 5)
T
A
= T
J
Parameter
Conditions
LM101A/LM201A
LM301A
Units
Min
Typ
Max Min
Typ
Max
Input Offset Voltage
T
A
= 25C, R
S
50 k
0.7
2.0
2.0
7.5
mV
Input Offset Current
T
A
= 25C
1.5
10
3.0
50
nA
Input Bias Current
T
A
= 25C
30
75
70
250
nA
Input Resistance
T
A
= 25C
1.5
4.0
0.5
2.0
M
Supply Current
T
A
= 25C
V
S
=
20V
1.8
3.0
mA
V
S
=
15V
1.8
3.0
mA
Large Signal Voltage Gain
T
A
= 25C, V
S
=
15V
50
160
25
160
V/mV
V
OUT
=
10V, R
L
2 k
Input Offset Voltage
R
S
50 k
3.0
10
mV
Average Temperature Coefficient
R
S
50 k
3.0
15
6.0
30
V/C
of Input Offset Voltage
Input Offset Current
20
70
nA
Average Temperature Coefficient
25C
T
A
T
MAX
0.01
0.1
0.01
0.3
nA/C
of Input Offset Current
T
MIN
T
A
25C
0.02
0.2
0.02
0.6
nA/C
Input Bias Current
0.1
0.3
A
Supply Current
T
A
= T
MAX
, V
S
=
20V
1.2
2.5
mA
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3
Electrical Characteristics
(Note 5) (Continued)
T
A
= T
J
Parameter
Conditions
LM101A/LM201A
LM301A
Units
Min
Typ
Max Min
Typ
Max
Large Signal Voltage Gain
V
S
=
15V, V
OUT
=
10V
25
15
V/mV
R
L
2k
Output Voltage Swing
V
S
=
15V
R
L
= 10 k
12
14
12
14
V
R
L
= 2 k
10
13
10
13
V
Input Voltage Range
V
S
=
20V
15
V
V
S
=
15V
+15,
-13
12
+15,
-13
V
Common-Mode Rejection Ratio
R
S
50 k
80
96
70
90
dB
Supply Voltage Rejection Ratio
R
S
50 k
80
96
70
96
dB
Note 2: Absolute Maximum Ratings indicate limits beyond which damage to the device may occur.Operating ratings indicate for which the device is functional, but
do no guarantee specific performance limits. Electrical Characteristics state DC and AC electrical specifications under particular test conditions which guarantee spe-
cific limits. This assumes that the device is within the Operating Ratings. Specifications are not guaranteed for parameters where no limit is given, however, the typical
value is a good indication of device performance.
Note 3: For supply voltages less than
15V, the absolute maximum input voltage is equal to the supply voltage.
Note 4: Continuous short circuit is allowed for case temperatures to 125C and ambient temperatures to 75C for LM101A/LM201A, and 70C and 55C respectively
for LM301A.
Note 5: Unless otherwise specified, these specifications apply for C1 = 30 pF,
5V
V
S
20V and -55C
T
A
+125C (LM101A),
5V
V
S
20V and -25C
T
A
+85C (LM201A),
5V
V
S
15V and 0C
T
A
+70C (LM301A).
Note 6: Refer to RETS101AX for LM101A military specifications and RETS101X for LM101 military specifications.
Note 7: Human body model, 100 pF discharged through 1.5 k
.
Guaranteed Performance Characteristics
LM101A/LM201A
Guaranteed Performance Characteristics
LM301A
Input Voltage Range
DS007752-41
Output Swing
DS007752-42
Voltage Gain
DS007752-43
Input Voltage Range
DS007752-44
Output Swing
DS007752-45
Voltage Gain
DS007752-46
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Typical Performance Characteristics
Supply Current
DS007752-47
Voltage Gain
DS007752-48
Maximum Power Dissipation
DS007752-49
Input Current,
LM101A/LM201A/LM301A
DS007752-50
Current Limiting
DS007752-51
Input Noise Voltage
DS007752-52
Input Noise Current
DS007752-53
Common Mode Rejection
DS007752-54
Power Supply Rejection
DS007752-55
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