LM124, LM224x, LM324x
Datasheet
Low-power quad operational amplifiers
Features
QFN16 3x3
TSSOP14
•
•
•
•
•
•
•
•
Wide gain bandwidth: 1.3 MHz
Input common mode voltage range includes ground
Large voltage gain: 100 dB
Very low supply current/amplifier: 375 µA
Low input bias current: 20 nA
Low input voltage: 3 mV max.
Low input offset current: 2 nA
Wide power supply range:
–
Single supply: 3 V to 30 V
–
Dual supplies: ±1.5 V to ±15 V
SO14
Related products
•
See
TSB572
and
TSB611,
36 V newer technology devices, which have
enhanced accuracy and ESD rating, reduced power consumption, and
automotive grade qualification
See
LM2902
and
LM2902W
for automotive grade applications
•
Description
Product status link
LM124, LM224x, LM324x
Product reference
LM124
(1)
LM224x
LM324x
Part numbers
LM124
LM224, LM224A
(2)
,
LM224W
(3)
LM324, LM324A,
LM324W
(3)
The
LM124, LM224x
and
LM324x
consist of four independent, high gain operational
amplifiers with frequency compensation implemented internally. 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.
1. Prefixes: LM1, LM2, and LM3 refer to
temperature range
2. Suffix A refers to enhanced Vio
performance
3. Suffix W refers to enhanced ESD
ratings.
DS0985
-
Rev 8
-
September 2019
For further information contact your local STMicroelectronics sales office.
www.st.com
LM124, LM224x, LM324x
Pin connections and schematic diagram
1
Pin connections and schematic diagram
Figure 1.
Pin connections (top view)
QFN16 3x3
Output 1 1
Inverting input 1 2
Non-inverting input 1 3
V
CC
+ 4
Non-inverting input 2 5
Inverting input 2 6
Output 2 7
+
-
+
-
-
+
-
+
14 Output 4
13 Inverting input 4
12 Non-inverting input 4
11 V
CC
-
10 Non-inverting input 3
9
8
Inverting input 3
Output 3
TSSOP14/SO14
1.
The exposed pads of the QFN16 3x3 can be connected to VCC- or left floating
DS0985
-
Rev 8
page 2/22
LM124, LM224x, LM324x
Pin connections and schematic diagram
Figure 2.
Schematic diagram (LM224A, LM324A, LM224W, LM324W, one channel)
Figure 3.
Schematic diagram (LM124, LM224, LM324, one channel)
DS0985
-
Rev 8
page 3/22
LM124, LM224x, LM324x
Absolute maximum ratings and operating conditions
2
Absolute maximum ratings and operating conditions
Table 1.
Absolute maximum ratings
Symbol
V
CC
Supply voltage
Input voltage
V
i
LM224A, LM324A, LM224W, LM324W
Input voltage
LM124, LM224, LM324
V
id
P
tot
Differential input voltage
(1)
Power dissipation: D suffix
Output short-circuit duration
(2)
I
in
T
stg
T
j
Input current
(3)
Storage temperature range
Maximum junction temperature
QFN16 3x3
R
thja
Thermal resistance junction to ambient
(4)
TSSOP14
SO14
QFN16 3x3
R
thjc
Thermal resistance junction to case
TSSOP14
SO14
LM224A, LM324A
HBM: human body model
(5)
ESD
MM: machine model
(6)
CDM: charged device model
LM224W, LM324W
LM124, LM224, LM324
Parameter
Value
±16 or 32
-0.3 to V
CC
+ 0.3
V
-0.3 to 32
32
400
Infinite
50
-65 to 150
150
45
100
103
14
32
31
800
700
250
100
1500
V
°C/W
mA
°C
mW
Unit
1. Neither of the input voltages must exceed the magnitude of (V
CC +
) or (V
CC -
).
2. Short-circuits from the output to V
CC
can cause excessive heating if V
CC
> 15 V. The maximum output
current is approximately 40 mA independent of the magnitude of V
CC
. Destructive dissipation can result
from simultaneous short-circuits on all amplifiers.
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 an input
diode clamp. In addition to this diode action, there is also an 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 during which an input is driven negative. This is not destructive and normal
output starts up again for input voltages higher than -0.3 V.
4. Short-circuits can cause excessive heating. Destructive dissipation can result from simultaneous short-
circuits on all amplifiers. These are typical values given for a single layer board (except for TSSOP which is
a two-layer board).
5. Human body model: 100 pF discharged through a 1.5 kΩ resistor between two pins of the device, done for
all couples of pin combinations with other pins floating.
6. Machine model: a 200 pF cap is charged to the specified voltage, then discharged directly between two pins
of the device with no external series resistor (internal resistor < 5 Ω), done for all couples of pin
combinations with other pins floating.
DS0985
-
Rev 8
page 4/22
LM124, LM224x, LM324x
Absolute maximum ratings and operating conditions
Table 2.
Operating conditions
Symbol
V
CC
Supply voltage
Common-mode input voltage range
V
ICM
Tamb= 25 °C
Common-mode input voltage range
Tmin. ≤ Tamb ≤ Tmax.
LM124
T
Oper
Operating temperature range
LM224
LM324
Parameter
Single supply
Dual supply
Value
3 to 30
±1.5 to ±15
0 to V
CC
- 1.5
V
Unit
0 to V
CC
-2
-55 to 125
-40 to 105
0 to 70
°C
DS0985
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Rev 8
page 5/22
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