TI JL124BZA

LM124JAN
LM124A/LM124JAN Low Power Quad Operational Amplifiers
Literature Number: SNOSAC4E
LM124A/LM124JAN
Low Power Quad Operational Amplifiers
General Description
Advantages
The LM124/124A consists of four 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 LM124/124A can be directly operated off of
the standard +5Vdc power supply voltage which is used in
digital systems and will easily provide the required interface
electronics without requiring the additional +15Vdc power
supplies.
■ Eliminates need for dual supplies
■ Four internally compensated op amps in a single package
■ Allows directly sensing near GND and VOUT also goes to
GND
■ Compatible with all forms of logic
■ Power drain suitable for battery operation
Features
■ Internally frequency compensated for unity gain
■ Large DC voltage gain 100 dB
■ Wide bandwidth (unity gain) 1 MHz
(temperature compensated)
■ Wide power supply range:
Unique Characteristics
■
■ 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
■ The unity gain cross frequency is temperature
compensated
■ The input bias current is also temperature compensated
■
■
■
■
■
Single supply 3V to 32V
or dual supplies ±1.5V to ±16V
Very low supply current drain (700 μA)—essentially
independent of supply voltage
Low input biasing current 45 nA
(temperature compensated)
Low input offset voltage 2 mV
and offset current: 5 nA
Input common-mode voltage range includes ground
Differential input voltage range equal to the power supply
voltage
Large output voltage swing 0V to V+ − 1.5V
Ordering Information
NSC Part Number
JAN Part Number
NSC Package
Number
Package Description
JL124BCA
JM38510/11005BCA
J14A
14LD CERDIP
JL124BDA
JM38510/11005BDA
W14B
14LD CERPACK
JL124BZA
JM38510/11005BZA
WG14A
JL124SCA
JM38510/11005SCA
J14A
14LD CERDIP
JL124SDA
JM38510/11005SDA
W14B
14LD CERPACK
JL124ABCA
JM38510/11006BCA
J14A
14LD CERDIP
JL124ABDA
JM38510/11006BDA
W14B
14LD CERPACK
JL124ABZA
JM38510/11006BZA
WG14A
JL124ASCA
JM38510/11006SCA
J14A
14LD CERDIP
JL124ASDA
JM38510/11006SDA
W14B
14LD CERPACK
JL124ASZA
JM38510/11006SZA
WG14A
© 2010 National Semiconductor Corporation
14LD Ceramic SOIC
14LD Ceramic SOIC
14LD Ceramic SOIC
201007
201007 Version 6 Revision 7
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Print Date/Time: 2010/09/30 23:57:40
LM124A/LM124JAN Low Power Quad Operational Amplifiers
OBSOLETE
September 27, 2010
LM124A/LM124JAN
Connection Diagrams
Dual-In-Line Package
20100701
Top View
See NS Package Number J14A
20100733
See NS Package Number W14B or WG14A
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LM124A/LM124JAN
Schematic Diagram
(Each Amplifier)
20100702
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www.national.com
LM124A/LM124JAN
Absolute Maximum Ratings (Note 1)
Power Dissipation (Note 2)
CERDIP
CERPACK
Ceramic SOIC
Supply Voltage, V+
Input Voltage Differential
Input Voltage
Input Current (VIN < −0.3VDC) (Note 3)
Output Short-Circuit to GND (Note 4)
400mW
350mW
350mW
36VDC or ±18VDC
30VDC
−0.3VDC to +32VDC
10 to 0.1mA
V+ ≤ 15VDC and TA = 25°C (One Amplifier)
Continuous
Operating Temperature Range Maximum Junction Temperature (Note 2)
Storage Temperature Range
−55°C ≤ TA ≤ +125°C
175°C
−65°C ≤ TA ≤ +150°C
260°C
Lead Temperature (Soldering, 10 seconds)
Thermal Resistance
θJA
CERDIP
(Still Air)
(500LF/Min Air flow)
120°C/W
51°C/W
CERPACK
(Still Air)
(500LF/Min Air flow)
140°C/W
116°C/W
Ceramic SOIC
(Still Air)
(500LF/Min Air flow)
140°C/W
116°C/W
θJC
CERDIP
CERPACK
Ceramic SOIC
Package Weight (Typical)
CERDIP
CERPACK
Ceramic SOIC
ESD Tolerance (Note 5)
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35°C/W
60°C/W
60°C/W
2200mg
460mg
410mg
250V
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MIL-STD-883, Method 5005 — Group A
Subgroup
Description
1
Static tests at
Temp (°C)
25
2
Static tests at
125
3
Static tests at
-55
4
Dynamic tests at
25
5
Dynamic tests at
125
6
Dynamic tests at
-55
7
Functional tests at
25
8A
Functional tests at
125
8B
Functional tests at
-55
9
Switching tests at
25
10
Switching tests at
125
11
Switching tests at
-55
5
201007 Version 6 Revision 7
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LM124A/LM124JAN
Quality Conformance Inspection
LM124A/LM124JAN
LM124 JAN DC Electrical Characteristics
SYMBOL
PARAMETER
CONDITIONS
VIO
Input Offset Voltage
MIN
MAX UNIT
SUB
GROUPS
VCC+ = 30V, VCC- = Gnd,
VCM = +15V
-5.0
5.0
mV
1
-7.0
7.0
mV
2, 3
VCC = 2V, VCC = -28V,
VCM = -13V
-5.0
5.0
mV
1
-7.0
7.0
mV
2, 3
VCC+ = 5V, VCC- = Gnd,
VCM = +1.4V
-5.0
5.0
mV
1
-7.0
7.0
mV
2, 3
VCC+ = 2.5V, VCC- = -2.5V, VCM =
-1.1V
-5.0
5.0
mV
1
-7.0
7.0
mV
2, 3
VCC = 30V, VCC = Gnd,
VCM = +15V
-30
30
nA
1, 2
-75
75
nA
3
VCC+ = 2V, VCC- = -28V,
VCM = -13V
-30
30
nA
1, 2
-75
75
nA
3
VCC = 5V, VCC = Gnd,
VCM = +1.4V
-30
30
nA
1, 2
-75
75
nA
3
VCC+ = 2.5V, VCC- = -2.5V, VCM =
-1.1V
-30
30
nA
1, 2
-75
75
nA
3
VCC+ = 30V, VCC- = Gnd,
VCM = +15V
-150
+0.1
nA
1, 2
-300
+0.1
nA
3
VCC = 2V, VCC = -28V,
VCM = -13V
-150
+0.1
nA
1, 2
-300
+0.1
nA
3
VCC+ = 5V, VCC- = Gnd,
VCM = +1.4V
-150
+0.1
nA
1, 2
-300
+0.1
nA
3
VCC+ = 2.5V, VCC- = -2.5V, VCM =
-1.1V
-150
+0.1
nA
1, 2
-300
+0.1
nA
3
VCC- = Gnd, VCM = -1.4V,
-100
100
µV/V
1, 2, 3
76
dB
1, 2, 3
-70
mA
1, 2, 3
3
mA
1, 2
4
mA
3
+
IIO
Input Offset Current
-
-
+
+
±IIB
NOTES
Input Bias Current
+
-
-
+PSRR
Power Supply Rejection Ratio
CMRR
Common Mode Rejection Ratio
IOS+
Output Short Circuit Current
VCC = 30V, VCC = Gnd,
Vo = +25V
ICC
Power Supply Current
VCC+ = 30V, VCC - = Gnd
5V ≤ VCC ≤ 30V
Delta VIO /
Delta T
Delta IIO /
Delta T
Input Offset Voltage
Temperature Sensitivity
(Note 6)
+
-
+25°C ≤ TA ≤ +125°C,
VCC+ = 5V, VCC - = 0V,
VCM = +1.4V
-30
30
µV/°C
2
-55°C ≤ TA ≤ +25°C,
VCC+ = 5V, VCC- = 0V,
VCM = +1.4V
-30
30
µV/°C
3
-400
400
pA/°C
2
-700
700
pA/°C
3
Input Offset Current Temperature +25°C ≤ TA ≤ +125°C,
Sensitivity
VCC+ = 5V, VCC- = 0V,
VCM = +1.4V
-55°C ≤ TA ≤ +25°C,
VCC+ = 5V, VCC- = 0V,
VCM = +1.4V
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201007 Version 6 Revision 7
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SYMBOL
PARAMETER
CONDITIONS
NOTES
VOL
Logical "0" Output Voltage
VCC+ = 30V, VCC- = Gnd,
MIN
MAX UNIT
SUB
GROUPS
35
mV
4, 5, 6
VCC+ = 30V, VCC- = Gnd,
IOL = 5mA
1.5
V
4, 5 ,6
VCC+ = 4.5V, VCC- = Gnd,
IOL = 2µA
0.4
V
4, 5, 6
RL = 10KΩ
VOH
AVS+
Logical "1" Output Voltage
Voltage Gain
VCC+ = 30V, VCC- = Gnd,
IOH = -10mA
27
V
4, 5, 6
VCC+ = 4.5V, VCC- = Gnd,
IOH = -10mA
2.4
V
4, 5
2.3
V
6
VCC+ = 30V, VCC- = Gnd,
50
V/mV
4
25
V/mV
5, 6
50
V/mV
4
25
V/mV
5, 6
10
V/mV
4, 5, 6
10
V/mV
4, 5, 6
27
V
4, 5, 6
26
V
4, 5, 6
1V ≤ VO ≤26V,
RL = 10KΩ
VCC+ = 30V, VCC- = Gnd,
5V ≤ VO ≤ 20V,
RL = 2KΩ
AVS
Gain Voltage
VCC+ = 5V, VCC- = Gnd,
1V ≤ VO ≤ 2.5V,
RL = 10KΩ
VCC+ = 5V, VCC- = Gnd,
1V ≤ VO ≤ 2.5V,
RL = 2KΩ
+VOP
Maximum Output Voltage Swing VCC+ = 30V, VCC- = Gnd,
VO = +30V, RL = 10KΩ
VCC+ = 30V, VCC- = Gnd,
Vo = +30V, RL = 2KΩ
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201007 Version 6 Revision 7
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LM124A/LM124JAN
LM124 JAN DC Electrical Characteristics
LM124A/LM124JAN
LM124 JAN AC Electrical Characteristics
The following conditions apply to all the following parameters, unless otherwise specified.
AC: +VCC = 30V, −VCC = 0V.
SYMBOL
PARAMETER
CONDITIONS
NOTES
TRTR
Transient Response: Rise Time
VCC+ = 30V, VCC- = Gnd
TROS
Transient Response: Overshoot VCC = 30V, VCC = Gnd
±SR
Slew Rate: Rise/Fall
VCC+ = 30V, VCC- = Gnd
NIBB
Noise Broadband
VCC = 15V, VCC = -15V,
BW = 10Hz to 5KHz
NIPC
Noise Popcorn
VCC+ = 15V, VCC- = -15V,
MIN
-
+
SUB
GROUPS
1.0
µS
7, 8A, 8B
50
%
7, 8A, 8B
V/µS
7, 8A, 8B
15
µV/rms
7
50
µV/pK
7
dB
7
0.1
-
+
MAX UNIT
Rs = 20KΩ
CS
Channel Separation
VCC+ = 30V, VCC- = Gnd,
VIN = 1V and 16V,
80
RL = 2KΩ
LM124 JAN DC — Drift Values
“Delta calculations performed on JAN S and QMLV devices at group B,
subgroup 5 only”
SYMBOL
PARAMETER
CONDITIONS
VIO
Input Offset Voltage
±IIB
Input Bias Current
MIN
MAX UNIT
SUB
GROUPS
VCC+ = 30V, VCC- = Gnd,
VCM = +15V
-1.0
1.0
mV
1
VCC+ = 30V, VCC- = Gnd,
VCM = +15V
-15
15
nA
1
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NOTES
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201007 Version 6 Revision 7
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SYMBOL
PARAMETER
CONDITIONS
VIO
Input Offset Voltage
MIN
MAX UNIT
SUB
GROUPS
VCC+ = 30V, VCC- = Gnd,
VCM = +15V
-2.0
2.0
mV
1
-4.0
4.0
mV
2, 3
VCC = 2V, VCC = -28V,
VCM = −13V
-2.0
2.0
mV
1
-4.0
4.0
mV
2, 3
VCC+ = 5V, VCC- = Gnd,
VCM = +1.4V
-2.0
2.0
mV
1
-4.0
4.0
mV
2, 3
VCC+ = 2.5V, VCC- = -2.5V, VCM =
−1.1V
-2.0
2.0
mV
1
-4.0
4.0
mV
2, 3
VCC = 30V, VCC = Gnd,
VCM = +15V
-10
10
nA
1, 2
-30
30
nA
3
VCC+ = 2V, VCC- = -28V,
VCM = −13V
-10
10
nA
1, 2
-30
30
nA
3
VCC = 5V, VCC = Gnd,
VCM = +1.4V
-10
10
nA
1, 2
-30
30
nA
3
VCC+ = 2.5V, VCC- = -2.5V, VCM =
−1.1V
-10
10
nA
1, 2
-30
30
nA
3
VCC+ = 30V, VCC- = Gnd,
VCM = +15V
-50
+0.1
nA
1, 2
-100
+0.1
nA
3
-50
+0.1
nA
1, 2
-100
+0.1
nA
3
VCC+ = 5V, VCC- = Gnd,
VCM = +1.4V
-50
+0.1
nA
1, 2
-100
+0.1
nA
3
VCC+ = 2.5V, VCC- = -2.5V, VCM =
−1.1V
-50
+0.1
nA
1, 2
-100
+0.1
nA
3
VCC- = Gnd, VCM = -1.4V,
-100
100
µV/V
1, 2, 3
76
dB
1, 2, 3
-70
mA
1, 2, 3
3.0
mA
1, 2
+
IIO
Input Offset Current
-
-
+
+
±IIB
NOTES
Input Bias Current
VCC = 2V, VCC
VCM = −13V
+
-
-=
-28V,
+PSRR
Power Supply Rejection Ratio
CMRR
Common Mode Rejection Ratio
IOS+
Output Short Circuit Current
VCC = 30V, VCC - = Gnd,
VO = +25V
ICC
Power Supply Current
VCC+ = 30V, VCC - = Gnd
4.0
mA
3
Delta VIO/
Delta T
Input Offset Voltage
Temperature Sensitivity
+25°C ≤ TA ≤ +125°C,
VCC+ = 5V, VCC- = 0V,
VCM = +1.4V
-30
30
µV/°C
2
-55°C ≤ TA ≤ +25°C,
VCC+ = 5V, VCC- = 0V,
VCM = +1.4V
-30
30
µV/°C
3
-400
400
pA/°C
2
-700
700
pA/°C
3
5V ≤ VCC ≤ 30V
Delta IIO /
Delta T
(Note 6)
+
Input Offset Current Temperature +25°C ≤ TA ≤ +125°C,
Sensitivity
VCC+ = 5V, VCC- = 0V,
VCM = +1.4V
-55°C ≤ TA ≤ +25°C,
VCC+ = 5V, VCC- = 0V,
VCM = +1.4V
9
201007 Version 6 Revision 7
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www.national.com
LM124A/LM124JAN
LM124A JAN DC Electrical Characteristics
LM124A/LM124JAN
LM124A JAN DC Electrical Characteristics
SYMBOL
PARAMETER
CONDITIONS
NOTES
VOL
Logical "0" Output Voltage
VCC+ = 30V, VCC- = Gnd,
MIN
MAX UNIT
SUB
GROUPS
35
mV
4, 5, 6
VCC+ = 30V, VCC- = Gnd,
IOL = 5mA
1.5
V
4, 5, 6
VCC+ = 4.5V, VCC- = Gnd,
IOL = 2µA
0.4
V
4, 5, 6
RL = 10KΩ
VOH
AVS+
Logical "1" Output Voltage
Voltage Gain
VCC+ = 30V, VCC- = Gnd,
IOH = -10mA
27
V
4, 5, 6
VCC+ = 4.5V, VCC- = Gnd,
IOH = -10mA
2.4
V
4, 5
2.3
V
6
VCC+ = 30V, VCC- = Gnd,
50
V/mV
4
25
V/mV
5, 6
50
V/mV
4
25
V/mV
5, 6
10
V/mV
4, 5, 6
10
V/mV
4, 5, 6
27
V
4, 5, 6
26
V
4, 5, 6
1V ≤ VO ≤ 26V,
RL = 10KΩ
VCC+ = 30V, VCC- = Gnd,
5V ≤ VO ≤ 20V,
RL = 2KΩ
AVS
Gain Voltage
VCC+ = 5V, VCC- = Gnd,
1V ≤ VO ≤ 2.5V,
RL = 10KΩ
VCC+ = 5V, VCC- = Gnd,
1V ≤ VO ≤ 2.5V,
RL = 2KΩ
+VOP
Maximum Output Voltage Swing VCC+ = 30V, VCC- = Gnd,
VO = +30V, RL = 10KΩ
VCC+ = 30V, VCC- = Gnd,
VO = +30V, RL = 2KΩ
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201007 Version 6 Revision 7
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The following conditions apply to all the following parameters, unless otherwise specified.
AC: +VCC = 30V, −VCC = 0V
SYMBOL
PARAMETER
CONDITIONS
TRTR
Transient Response: Rise Time
VCC+ = 30V, VCC- = Gnd
TROS
Transient Response: Overshoot VCC = 30V, VCC = Gnd
±SR
Slew Rate: Rise/Fall
VCC+ = 30V, VCC- = Gnd
NIBB
Noise Broadband
VCC = 15V, VCC = -15V,
BW = 10Hz to 5KHz
NIPC
Noise Popcorn
VCC+ = 15V, VCC- = -15V,
+
+
NOTES
MIN
MAX UNIT
SUB
GROUPS
1.0
µS
7, 8A, 8B
50
%
7, 8A, 8B
V/µS
7, 8A, 8B
15
µV/rms
7
50
µV/pK
7
80
dB
7
80
dB
7
-
0.1
-
Rs = 20KΩ
BW = 10Hz to 5KHz
CS
Channel Separation
VCC+ = 30V, VCC- = Gnd
RL = 2KΩ
VCC+ = 30V, VCC- = Gnd,
VIN = 1V and 16V,
RL = 2KΩ
11
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LM124A/LM124JAN
LM124A JAN AC Electrical Characteristics
LM124A/LM124JAN
LM124A JAN DC — Drift Values
“Delta calculations performed on JAN S and QMLV devices at group B,
subgroup 5 only”
Symbol
PARAMETER
CONDITIONS
Vio
Input Offset Voltage
±iib
Input Bias Current
NOTES
MIN
MAX UNIT
SUB
GROUPS
Vcc+ = 30V, Vcc- = Gnd,
Vcm = +15V
-0.5
0.5
mV
1
Vcc+ = 30V, Vcc- = Gnd,
Vcm = +15V
-10
10
nA
1
Note 1: Absolute Maximum Ratings indicate limits beyond which damage to the device may occur. Operating Ratings indicate conditions for which the device is
functional, but do not guarantee specific performance limits. For guaranteed specifications and test conditions, see the Electrical Characteristics. The guaranteed
specifications apply only for the test conditions listed. Some performance characteristics may degrade when the device is not operated under the listed test
conditions.
Note 2: The maximum power dissipation must be derated at elevated temperatures and is dictated by TJmax (maximum junction temperature), θJA (package
junction to ambient thermal resistance), and TA (ambient temperature). The maximum allowable power dissipation at any temperature is PDmax = (TJmax - TA)/
θJA or the number given in the Absolute Maximum Ratings, whichever is lower.
Note 3: This input current will only exist when the voltage at any of the input leads is driven negative. It is due to the collector-base junction of the input PNP
transistors becoming forward biased and thereby acting as input diode clamps. In addition to this diode action, there is also lateral NPN parasitic transistor action
on the IC chip. This transistor action can cause the output voltages of the op amps to go to the V+ voltage level (or to ground for a large overdrive) for the time
duration that an input is driven negative. This is not destructive and normal output states will re-establish when the input voltage, which was negative, again
returns to a value greater than -0.3VDC (at 25°C).
Note 4: Short circuits from the output to V+ can cause excessive heating and eventual destruction. When considering short circuits to ground, the maximum output
current is approximately 40mA independent of the magnitude of V+. At values of supply voltage in excess of +15VDC, continuous short-circuits can exceed the
power dissipation ratings and cause eventual destruction. Destructive dissipation can result from simultaneous shorts on all amplifiers.
Note 5: Human body model, 1.5 kΩ in series with 100 pF.
Note 6: The input common-mode voltage of either input signal voltage should not be allowed to go negative by more than 0.3V (at 25°C). The upper end of the
common-mode voltage range is V+ − 1.5V (at 25°C), but either or both inputs can go to +32V without damage independent of the magnitude of V+.
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LM124A/LM124JAN
Typical Performance Characteristics
Input Voltage Range
Input Current
20100734
20100735
Supply Current
Voltage Gain
20100736
20100737
Open Loop Frequency
Response
Common Mode Rejection
Ratio
20100738
20100739
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LM124A/LM124JAN
Voltage Follower Pulse
Response
Voltage Follower Pulse
Response (Small Signal)
20100741
20100740
Large Signal Frequency
Response
Output Characteristics
Current Sourcing
20100742
20100743
Output Characteristics
Current Sinking
Current Limiting
20100745
20100744
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LM124A/LM124JAN
Input Current (LM2902 only)
Voltage Gain (LM2902 only)
20100746
20100747
output of the amplifier to ground to increase the class A bias
current and prevent crossover distortion.
Where the load is directly coupled, as in dc applications, there
is no crossover distortion.
Capacitive loads which are applied directly to the output of the
amplifier reduce the loop stability margin. Values of 50 pF can
be accommodated using the worst-case non-inverting unity
gain connection. Large closed loop gains or resistive isolation
should be used if larger load capacitance must be driven by
the amplifier.
The bias network of the LM124MIL establishes a drain current
which is independent of the magnitude of the power supply
voltage over the range of from 3 VDC to 30 VDC.
Output short circuits either to ground or to the positive power
supply should be of short time duration. Units can be destroyed, not as a result of the short circuit current causing
metal fusing, but rather due to the large increase in IC chip
dissipation which will cause eventual failure due to excessive
junction temperatures. Putting direct short-circuits on more
than one amplifier at a time will increase the total IC power
dissipation to destructive levels, if not properly protected with
external dissipation limiting resistors in series with the output
leads of the amplifiers. The larger value of output source current which is available at 25°C provides a larger output current
capability at elevated temperatures (see typical performance
characteristics) than a standard IC op amp.
The circuits presented in the section on typical applications
emphasize operation on only a single power supply voltage.
If complementary power supplies are available, all of the standard op amp circuits can be used. In general, introducing a
pseudo-ground (a bias voltage reference of V+/2) will allow
operation above and below this value in single power supply
systems. Many application circuits are shown which take advantage of the wide input common-mode voltage range which
includes ground. In most cases, input biasing is not required
and input voltages which range to ground can easily be accommodated.
Application Hints
The LM124MIL series are op amps which operate with only a
single power supply voltage, have true-differential inputs, and
remain in the linear mode with an input common-mode voltage of 0 VDC. These amplifiers operate over a wide range of
power supply voltage with little change in performance characteristics. At 25°C amplifier operation is possible down to a
minimum supply voltage of 2.3 VDC.
The pinouts of the package have been designed to simplify
PC board layouts. Inverting inputs are adjacent to outputs for
all of the amplifiers and the outputs have also been placed at
the corners of the package (pins 1, 7, 8, and 14).
Precautions should be taken to insure that the power supply
for the integrated circuit never becomes reversed in polarity
or that the unit is not inadvertently installed backwards in a
test socket as an unlimited current surge through the resulting
forward diode within the IC could cause fusing of the internal
conductors and result in a destroyed unit.
Large differential input voltages can be easily accommodated
and, as input differential voltage protection diodes are not
needed, no large input currents result from large differential
input voltages. The differential input voltage may be larger
than V+ without damaging the device. Protection should be
provided to prevent the input voltages from going negative
more than −0.3 VDC (at 25°C). An input clamp diode with a
resistor to the IC input terminal can be used.
To reduce the power supply drain, the amplifiers have a class
A output stage for small signal levels which converts to class
B in a large signal mode. This allows the amplifiers to both
source and sink large output currents. Therefore both NPN
and PNP external current boost transistors can be used to
extend the power capability of the basic amplifiers. The output
voltage needs to raise approximately 1 diode drop above
ground to bias the on-chip vertical PNP transistor for output
current sinking applications.
For ac applications, where the load is capacitively coupled to
the output of the amplifier, a resistor should be used, from the
15
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LM124A/LM124JAN
Typical Single-Supply Applications
(V+ = 5.0 VDC)
Non-Inverting DC Gain (0V Input = 0V Output)
20100705
*R not needed due to temperature independent IIN
DC Summing Amplifier
(VIN'S ≥ 0 VDC and VO ≥ VDC)
Power Amplifier
20100707
20100706
Where: V0 = V1 + V2 − V3 − V4
(V1 + V2) ≥ (V3 + V4) to keep VO > 0 VDC
V0 = 0 VDC for VIN = 0 VDC
AV = 10
LED Driver
20100708
www.national.com
16
201007 Version 6 Revision 7
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LM124A/LM124JAN
“BI-QUAD” RC Active Bandpass Filter
20100709
fo = 1 kHz
Q = 50
AV = 100 (40 dB)
Lamp Driver
Fixed Current Sources
20100711
20100710
17
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LM124A/LM124JAN
Pulse Generator
Current Monitor
20100715
20100712
Squarewave Oscillator
*(Increase R1 for IL small)
Driving TTL
20100713
20100716
Voltage Follower
Pulse Generator
20100714
20100717
www.national.com
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LM124A/LM124JAN
High Compliance Current Sink
20100718
IO = 1 amp/volt VIN
(Increase RE for Io small)
Low Drift Peak Detector
20100719
19
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LM124A/LM124JAN
Comparator with Hysteresis
Ground Referencing a Differential Input Signal
20100720
20100721
VO = VR
Voltage Controlled Oscillator Circuit
20100722
*Wide control voltage range: 0 VDC ≤ VC ≤ 2 (V+ −1.5 VDC)
Photo Voltaic-Cell Amplifier
20100723
www.national.com
20
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LM124A/LM124JAN
AC Coupled Inverting Amplifier
20100724
AC Coupled Non-Inverting Amplifier
20100725
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LM124A/LM124JAN
DC Coupled Low-Pass RC Active Filter
20100726
fO = 1 kHz
Q=1
AV = 2
High Input Z, DC Differential Amplifier
20100727
www.national.com
22
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LM124A/LM124JAN
High Input Z Adjustable-Gain
DC Instrumentation Amplifier
20100728
Using Symmetrical Amplifiers to
Reduce Input Current (General Concept)
Bridge Current Amplifier
20100730
20100729
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LM124A/LM124JAN
Bandpass Active Filter
20100731
fO = 1 kHz
Q = 25
www.national.com
24
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Section
Changes
01/27/05
Date Released
Revision
A
New Released, Corporate format
2 MDS data sheets converted into one Corp. data
sheet format. MJLM124–X, Rev. 1B1 and
MJLM124A-X, Rev. 2A1. MDS data sheets will be
archived.
04/18/05
B
Update Absolute Maximum Ratings
Section
Corrected typo for Supply Voltage limit From:
32Vdc or +18Vdc TO: 32Vdc or ±18Vdc. Added
Cerdip package weight.
09/27/2010
C
Obsolete Data Sheet
End Of Life on Product/NSID Dec. 2008/2009
25
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LM124A/LM124JAN
Revision History Section
LM124A/LM124JAN
Physical Dimensions inches (millimeters) unless otherwise noted
Ceramic Dual-In-Line Package
NS Package Number J14A
Ceramic Flatpack Package
NS Package Number W14B
www.national.com
26
201007 Version 6 Revision 7
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LM124A/LM124JAN
14-Pin Ceramic Package (WG)
NS Package Number WG14A
27
201007 Version 6 Revision 7
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www.national.com
LM124A/LM124JAN Low Power Quad Operational Amplifiers
Notes
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