1/13
WIDE GAIN BANDWIDTH : 1.3MHz
LARGE VOLTAGE GAIN : 100dB
VERY LOW SUPPLY CURRENT/AMPLI :
375
A
LOW INPUT BIAS CURRENT : 20nA
LOW INPUT OFFSET VOLTAGE : 3mV max.
LOW INPUT OFFSET CURRENT : 2nA
WIDE POWER SUPPLY RANGE :
SINGLE SUPPLY : +3V TO +30V
DUAL SUPPLIES : 1.5V TO 15V
INPUT COMMON-MODE VOLTAGE RANGE
INCLUDES GROUND
ESD INTERNAL PROTECTION : 2kV
DESCRIPTION
These circuits consist of four independent, high
gain, internally frequency compensated operation-
al amplifiers. They 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.
All the pins are protected against electrostatic dis-
charges up to 2000V (as a consequence, the input
voltages must not exceed the magnitude of V
CC
+
or V
CC
-
.)
ORDER CODE
N = Dual in Line Package (DIP)
D = Small Outline Package (SO) - also available in Tape & Reel (DT)
P = Thin Shrink Small Outline Package (TSSOP) - only available in Tape
&Reel (PT)
PIN CONNECTIONS (top view)
Part
Number
Temperature
Range
Package
N
D
P
LM124A
-55C, +125C
LM224A
-40C, +105C
LM324A
0C, +70C
Example : LM224AN
N
DIP14
(Plastic Package)
D
SO14
(Plastic Micropackage)
N
DIP14
(Plastic Package)
P
TSSOP14
(Thin Shrink Small Outline Package)
Inverting Input 2
Non-inverting Input 2
Non-inverting Input 1
CC
V
-
CC
V
1
2
3
4
8
5
6
7
9
10
11
12
13
14
+
Output 3
Output 4
Non-inverting Input 4
Inverting Input 4
Non-inverting Input 3
Inverting Input 3
-
+
-
+
-
+
-
+
Output 1
Inverting Input 1
Output 2
LM124A
LM224A - LM324A
LOW POWER QUAD OPERATIONAL AMPLIFIERS
March 2001
LM124A-LM224A-LM324A
2/13
SCHEMATIC DIAGRAM (1/4 LM124A)
ABSOLUTE MAXIMUM RATINGS
Symbol
Parameter
LM124A
LM224A
LM324A
Unit
V
CC
Supply voltage
16 or 32
V
V
i
Input Voltage
-0.3 to +32
V
V
id
Differential Input Voltage
1)
1.
Either or both input voltages must not exceed the magnitude of V
CC
+
or V
CC
-
.
+32
+32
+32
V
P
tot
Power Dissipation
N Suffix
D Suffix
500
500
400
500
400
mW
mW
Output Short-circuit Duration
2)
2.
Short-circuits from the output to VCC can cause excessive heating if V
CC
> 15V. The maximum output current is approximately 40mA independent
of the magnitude of V
CC
. Destructive dissipation can result from simultaneous short-circuit on all amplifiers.
Infinite
I
in
Input Current
3)
3.
This input current only exists when the voltage at any of the input leads is driven negative. It is due to the collector-base junction of the input PNP
transistor becoming forward biased and thereby acting as input diodes clamps. In addition to this diode action, there is also NPN parasitic action on
the IC chip. this transistor action can cause the output voltages of the Op-amps to go to the V
CC
voltage level (or to ground for a large overdrive)
for the time duration than an input is driven negative.
This is not destructive and normal output will set up again for input voltage higher than -0.3V.
50
50
50
mA
T
oper
Opearting Free-air Temperature Range
-55 to +125
-40 to +105
0 to +70
C
T
stg
Storage Temperature Range
-65 to +150
-65 to +150
-65 to +150
C
LM124A-LM224A-LM324A
3/13
ELECTRICAL CHARACTERISTICS
V
CC
+
= +5V, V
CC
-
= Ground, V
o
= 1.4V, T
amb
= +25C (unless otherwise specified)
Symbol
Parameter
Min.
Typ.
Max.
Unit
V
io
Input Offset Voltage - note
1)
T
amb
= +25C
T
min
T
amb
T
max
2
3
5
mV
I
io
Input Offset Current
T
amb
= +25C
T
min
T
amb
T
max
2
20
40
nA
I
ib
Input Bias Current - note
2)
T
amb
= +25C
T
min
T
amb
T
max
20
100
200
nA
A
vd
Large Signal Voltage Gain
V
CC
+
= +15V, R
L
= 2k
,
V
o
= 1.4V to 11.4V
T
amb
= +25C
T
min
T
amb
T
max
50
25
100
V/mV
SVR
Supply Voltage Rejection Ratio (R
s
10k
)
V
CC
+
= 5V to 30V
T
amb
= +25C
T
min
T
amb
T
max
65
65
110
dB
I
CC
Supply Current, all Amp, no load
T
amb
= +25C
V
CC
= +5V
V
CC
= +30V
T
min
T
amb
T
max
V
CC
= +5V
V
CC
= +30V
0.7
1.5
0.8
1.5
1.2
3
1.2
3
mA
V
icm
Input Common Mode Voltage Range
V
CC
= +30V - note
3)
T
amb
= +25C
T
min
T
amb
T
max
0
0
V
CC
-1.5
V
CC
-2
V
CMR
Common Mode Rejection Ratio (R
s
10k
)
T
amb
= +25C
T
min
T
amb
T
max
70
60
80
dB
I
source
Output Current Source (V
id
= +1V)
V
CC
= +15V, V
o
= +2V
20
40
70
mA
I
sink
Output Sink Current (V
id
= -1V)
V
CC
= +15V, V
o
= +2V
V
CC
= +15V, V
o
= +0.2V
10
12
20
50
mA
A
V
OH
High Level Output Voltage
V
CC
= +30V
T
amb
= +25C R
L
= 2k
T
min
T
amb
T
max
T
amb
= +25C R
L
= 10k
T
min
T
amb
T
max
V
CC
= +5V, R
L
= 2k
T
amb
= +25C
T
min
T
amb
T
max
26
26
27
27
3.5
3
27
28
V
VOL
Low Level Output Voltage (R
L
= 10k
)
T
amb
= +25C
T
min
T
amb
T
max
5
20
20
mV
LM124A-LM224A-LM324A
4/13
SR
Slew Rate
V
CC
= 15V, V
i
= 0.5 to 3V, R
L
= 2k
, C
L
= 100pF, unity Gain
0.4
V/
s
GBP
Gain Bandwidth Product
V
CC
= 30V, f =100kHz,V
in
= 10mV, R
L
= 2k
, C
L
= 100pF
1.3
MHz
THD
Total Harmonic Distortion
f = 1kHz, A
v
= 20dB, R
L
= 2k
,
V
o
= 2V
pp
,
C
L
= 100pF, V
CC
= 30V
0.015
%
e
n
Equivalent Input Noise Voltage
f = 1kHz, R
s
= 100
,
V
CC
= 30V
40
DV
io
Input Offset Voltage Drift
7
30
V/C
DI
Iio
Input Offset Current Drift
10
200
pA/C
V
o1
/V
o2
Channel Separation - note
4)
1kHz
f
20kHZ
120
dB
1.
The direction of the input current is out of the IC. This current is essentially constant, independent of the state of the output so no loading change
exists on the input lines.
2.
V
o
= 1.4V, R
s
= 0
, 5V < V
CC
+
< 30V, 0 < V
ic
< V
CC
+
- 1.5V
3.
The input common-mode voltage of either input signal voltage should not be allowed to go negative by more than 0.3V. The upper end of the
common-mode voltage range is V
CC
+
- 1.5V, but either or both inputs can go to +32V without damage.
4.
Due to the proximity of external components insure that coupling is not originating via stray capacitance between these external parts. This typically
can be detected as this type of capacitance increases at higher frequences.
Symbol
Parameter
Min.
Typ.
Max.
Unit
nV
Hz
------------
LM124A-LM224A-LM324A
5/13
-55-35-15 5 25 45 65 85 105 125
AMBIENT TEMPERATURE (C)
24
21
18
15
9
12
6
3
0
INPUT BIAS CURRENT
versus AMBIENT TEMPERATURE
IB (nA)
SUPPLY
CURRENT
(mA)
SUPPLY CURRENT
0
10
20
30
Tamb = -55C
VCC
mA
ID
-
+
Tamb = 0C to +125C
POSITIVE SUPPLY VOLTAGE (V)
4
3
2
1
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