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
Part numbers
LM124(1)
LM124
LM224x
LM224, LM224A(2),
LM224W(3)
LM324x
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
14 Output 4
Output 1 1
Inverting input 1 2
-
-
13 Inverting input 4
Non-inverting input 1 3
+
+
12 Non-inverting input 4
11 V CC -
VCC + 4
Non-inverting input 2 5
+
+
Inverting input 2 6
-
-
Output 2 7
10 Non-inverting input 3
9
Inverting input 3
8
Output 3
TSSOP14/SO14
1.
DS0985 - Rev 8
The exposed pads of the QFN16 3x3 can be connected to VCC- or left floating
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
VCC
Parameter
Value
Supply voltage
±16 or 32
Input voltage
Vi
-0.3 to VCC + 0.3
LM224A, LM324A, LM224W, LM324W
V
Input voltage
-0.3 to 32
LM124, LM224, LM324
Vid
Differential input voltage (1)
Ptot
Power dissipation: D suffix
Output short-circuit duration
Iin
Tstg
Tj
Rthja
Rthjc
32
400
(2)
50
Storage temperature range
-65 to 150
Maximum junction temperature
Thermal resistance junction to ambient
150
QFN16 3x3
45
TSSOP14
100
SO14
103
QFN16 3x3
14
TSSOP14
32
SO14
31
LM224A, LM324A
800
LM224W, LM324W
700
LM124, LM224, LM324
250
(4)
Thermal resistance junction to case
HBM: human body model
(5)
ESD
mW
Infinite
Input current (3)
MM: machine model
Unit
(6)
CDM: charged device model
mA
°C
°C/W
V
100
1500
1. Neither of the input voltages must exceed the magnitude of (VCC +) or (VCC -).
2. Short-circuits from the output to VCC can cause excessive heating if VCC > 15 V. The maximum output
current is approximately 40 mA independent of the magnitude of VCC. 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 VCC 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 shortcircuits 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
VCC
Parameter
Supply voltage
Value
Single supply
3 to 30
Dual supply
±1.5 to ±15
Common-mode input voltage range
VICM
0 to VCC - 1.5
Tamb= 25 °C
Common-mode input voltage range
DS0985 - Rev 8
Operating temperature range
V
0 to VCC -2
Tmin. ≤ Tamb ≤ Tmax.
TOper
Unit
LM124
-55 to 125
LM224
-40 to 105
LM324
0 to 70
°C
page 5/22
LM124, LM224x, LM324x
Electrical characteristics
3
Electrical characteristics
Table 3. VCC + = 5 V, VCC - = ground, Vo = 1.4 V, Tamb = 25 °C (unless otherwise specified)
Symbol
Parameter
Vio
Min.
Tamb = 25 °C
Typ.
Max.
2
3
Unit
LM224A,
LM324A,
Tmin ≤ Tamb ≤ Tmax
LM224W,
5
LM324W
LM124
Input offset voltage (1)
Tamb = 25 °C
Vio
LM224
LM124,
LM324
LM224,
LM124
LM324
Tmin ≤ Tamb ≤ Tmax
2
5
2
7
7
LM224
LM324
Iio
Iib
Avd
Input offset current
Input bias current (2)
Large signal voltage gain, VCC += 15 V,
RL = 2 kΩ, Vo = 1.4 V to 11.4 V
Supply voltage rejection ratio,
SVR
ICC
Rs ≤ 10 kΩ,
VCC += 5 V to 30 V
Supply current, all amps, no load
Vicm
Input common mode voltage range (3)
CMR
Common mode rejection ratio,
Rs ≤ 10 kΩ
Isource
Output current source, Vid = 1 V
Isink
Output sink current, Vid = -1 V
DS0985 - Rev 8
mV
9
Tamb = 25 °C
2
Tmin ≤ Tamb ≤ Tmax
20
40
Tamb = 25 °C
20
Tmin ≤ Tamb ≤ Tmax
100
nA
200
Tamb = 25 °C
50
Tmin ≤ Tamb ≤ Tmax
25
Tamb = 25 °C
65
Tmin ≤ Tamb ≤ Tmax
65
100
V/mV
110
dB
Tamb = 25 °C, VCC = 5V
0.7
1.2
Tamb = 25 °C, VCC = 30 V
1.5
3
Tmin ≤ Tamb ≤ Tmax, VCC = 5 V
0.8
1.2
Tmin ≤ Tamb ≤ Tmax, VCC = 30 V
1.5
3
VCC = 30 V, Tamb = 25 °C
0
28.5
VCC = 30 V, Tmin ≤ Tamb ≤ Tmax
0
28
Tamb = 25 °C
70
Tmin ≤ Tamb ≤ Tmax
60
VCC = 15 V, Vo = 2 V
20
40
VCC = 15 V, Vo = 2 V
10
20
VCC = 15 V, Vo = 0.2 V
12
50
80
mA
V
dB
70
mA
µA
page 6/22
LM124, LM224x, LM324x
Electrical characteristics
Symbol
Parameter
High level output voltage, VCC = 30 V,
RL = 2 kΩ
VOH
High level output voltage, VCC = 30 V,
RL = 10 kΩ
High level output voltage, VCC = 5 V,
RL = 2 kΩ
Min.
Typ.
Tamb = 25 °C
26
27
Tmin ≤ Tamb ≤ Tmax
26
Tamb = 25 °C
27
Tmin ≤ Tamb ≤ Tmax
27
Tamb = 25 °C
3.5
Tmin ≤ Tamb ≤ Tmax
3
Tamb = 25 °C
Max.
28
5
Unit
V
20
VOL
Low level output voltage, RL = 10 kΩ
SR
Slew rate
VCC = 15 V, Vi = 0.5 to 3 V,
RL = 2 kΩ, CL = 100 pF, unity gain
0.4
V/µs
GBP
Gain bandwidth product
VCC = 30 V, f = 100 kHz,
Vin=10 mV, RL = 2 kΩ, CL=100 pF
1.3
MHz
THD
Total harmonic distortion
f = 1kHz, Av = 20 dB, RL = 2 kΩ,
Vo = 2 Vpp, CL = 100 pF, VCC=30 V
0.015
%
Equivalent input noise voltage
f = 1 kHz, Rs = 100 Ω, VCC = 30 V
40
nV/√Hz
en
Tmin ≤ Tamb ≤ Tmax
20
mV
DVio
Input offset voltage drift
7
30
µV/°C
DIio
Input offset current drift
10
200
pA/°C
Vo1/Vo2
Channel separation (4)
1 kHz ≤ f ≤ 20 kHZ
120
kHz
1. Vo = 1.4 V, Rs = 0 Ω, 5 V < VCC + < 30 V, 0 < Vic < VCC + - 1.5 V
2. The direction of the input current is out of the IC. This current is essentially constant, independent of the
state of the output so there is no load change on the input lines.
3. The input common-mode voltage of either input signal voltage should not be allowed to go negative by more
than 0.3 V. The upper end of the common-mode voltage range is (VCC +) - 1.5 V, but either or both inputs
can go to 32 V without damage.
4. Due to the proximity of external components, ensure that there is no coupling originating from stray
capacitance between these external parts. Typically, this can be detected at higher frequencies because this
type of capacitance increases.
DS0985 - Rev 8
page 7/22
LM124, LM224x, LM324x
Electrical characteristic curves
4
Electrical characteristic curves
Figure 4. Input bias current vs. temperature
Figure 5. Output current limitation
24
OUTPUT CURRENT (mA)
21
18
IB (nA)
15
12
9
6
3
0
-55 -35 -15
5
25 45
65
85 105 125
TEMPERATURE (°C)
Figure 6. Input voltage range
Figure 7. Supply current vs. supply voltage
Figure 8. Gain bandwidth product vs. temperature
Figure 9. Common-mode rejection ratio
DS0985 - Rev 8
page 8/22
LM124, LM224x, LM324x
Electrical characteristic curves
Figure 10. Open loop frequency response
Figure 11. Large signal frequency response
Figure 12. Voltage follower pulse response
Figure 13. Output characteristics (current sinking)
Figure 14. Voltage follower pulse response (small signal)
Figure 15. Output characteristics (current sourcing)
DS0985 - Rev 8
page 9/22
LM124, LM224x, LM324x
Electrical characteristic curves
Figure 16. Input current vs. supply voltage
Figure 17. Large signal voltage gain vs. temperature
Figure 18. Power supply and common mode rejection
ratio vs. temperature
Figure 19. Voltage gain vs. supply voltage
VOLTAGE GAIN (dB)
16 0
R
L
= 20k Ω
R
L
= 2k Ω
12 0
80
40
0
10
20
30
P O S I T I V E S U P P LY V O LTA G E ( V )
DS0985 - Rev 8
page 10/22
LM124, LM224x, LM324x
Typical single-supply applications
5
Typical single-supply applications
Figure 21. High input Z adjustable gain DC
instrumentation amplifier
Figure 20. AC coupled inverting amplifier
Rf
100 kΩ
R1
10 kΩ
CI
A V= -
R2
VCC 100 kΩ
R1
100 kΩ
R1
(As shown A V =- 10)
Co
1/4
LM124A
eI ~
Rf
2VPP
0
eo
RB
6.2 kΩ
R3
100 kΩ
e1
RL
10 kΩ
R3
100 kΩ
1/4
LM124A
R2
2 kΩ
eO
1/4
LM124A
Gain adjust
R5
100 kΩ
R6
100 kΩ
1/4
LM124A
C1
10µF
R4
100 kΩ
R7
100 kΩ
e2
If R1 = R5 and R3 = R4 = R6 = R7
eo = [ 1 + 2R1 ] (e2 - e1)
R2
As shown eo = 101 (e2 - e1)
Figure 22. AC coupled non inverting amplifier
R1
100 kΩ
R2
1 MΩ
C1
0.1 µF
CI
e1
R3
1 MΩ
Co
1/4
LM124A
100 kΩ
2 VPP
0
eo
RL
10 kΩ
e2
100 kΩ
e3
100 kΩ
100 kΩ
e4
100 kΩ
R5
100 kΩ
eo = e1 + e2 - e3 - e4
where (e1 + e2) ≥ (e3 + e4)
to keep eo ≥ 0 V
Figure 24. Non-inverting DC gain
Figure 25. Low drift peak detector
A V = 1 + R2
R1
10 kΩ
IB
(as shown A V = 101)
1/4
LM124A
eO
1/4
eI
C
*
1 µF
R
1 MΩ
Zo
2I B
2N 929
2I B
eO (V)
R2
1 MΩ
0.001µF
IB
3R
3 MΩ
IB
0
DS0985 - Rev 8
e I (mV)
eo
I B LM124A
1/4
LM124A
+5 V
ZI
R1
10 kΩ
eO
1/4
LM124A
R4
100 kΩ
VCC
C2
10 µF
100 kΩ
AV = 1 + R2
R1
(as shown A V = 11)
RB
6.2 kΩ
eI ~
Figure 23. DC summing amplifier
1/4
LM124A
Input current compensation
*Polycarbonate or polyethylene
page 11/22
LM124, LM224x, LM324x
Typical single-supply applications
Figure 26. Active bandpass filter
Figure 27. High input Z, DC differential amplifier
R1
100 kΩ
For
C1
330 pF
1/4
LM124A
e1
R1
R2
=
R4
R3
CMRR depends on the following resistor ration match
R5
470 kΩ
R4
10 MΩ
C2
330 pF
R3
10 kΩ
R1
100 kΩ
1/4
LM124A
1/4
LM124A
R6
470 kΩ
eO
1/4
LM124A
R4
100 kΩ
R2
100 kΩ
+V1
+V2
R7
100 kΩ
R3
100 kΩ
1/4
LM124A
Vo
VCC
Fo = 1 kHz
Q = 50
Av = 100 (40 dB)
R8
100 kΩ
Vo = (1 + R4 ) (V2 - V1)
R3
C3
10µF
As shown Vo = 2 * (V2 - V1)
Figure 28. Using symmetrical amplifiers to reduce input current (general concept)
I
eI
IB
1/4
I
eo
I B LM124A
2N 929
0.001µF
IB
IB
3 MΩ
1.5 MΩ
DS0985 - Rev 8
IB
1/4
LM124A
Aux. amplifier for
input current compensation
page 12/22
LM124, LM224x, LM324x
Package information
6
Package information
In order to meet environmental requirements, ST offers these devices in different grades of ECOPACK packages,
depending on their level of environmental compliance. ECOPACK specifications, grade definitions and product
status are available at: www.st.com. ECOPACK is an ST trademark.
6.1
QFN16 3x3 package information
Figure 29. QFN16 3x3 package outline
DS0985 - Rev 8
page 13/22
LM124, LM224x, LM324x
QFN16 3x3 package information
Table 4. QFN16 3x3 mechanical data
Dimensions
Ref.
Millimeters
Inches
Min.
Typ.
Max.
Min.
Typ.
Max.
A
0.80
0.90
1.00
0.031
0.035
0.039
A1
0
0.05
0
A3
0.20
b
0.18
D
2.90
D2
1.50
E
2.90
E2
1.50
e
L
3.00
3.00
0.008
0.30
0.007
3.10
0.114
1.80
0.059
3.10
0.114
1.80
0.059
0.50
0.30
0.002
0.012
0.118
0.122
0.071
0.118
0.122
0.071
0.020
0.50
0.012
0.020
Figure 30. QFN16 3x3 recommended footprint
DS0985 - Rev 8
page 14/22
LM124, LM224x, LM324x
TSSOP14 package information
6.2
TSSOP14 package information
Figure 31. TSSOP14 package outline
aaa
Table 5. TSSOP14 package mechanical data
Dimensions
Ref.
Millimeters
Min.
Typ.
A
Max.
Min.
Typ.
1.20
A1
0.05
A2
0.80
b
Max.
0.047
0.15
0.002
0.004
0.006
1.05
0.031
0.039
0.041
0.19
0.30
0.007
0.012
c
0.09
0.20
0.004
0.0089
D
4.90
5.00
5.10
0.193
0.197
0.201
E
6.20
6.40
6.60
0.244
0.252
0.260
E1
4.30
4.40
4.50
0.169
0.173
0.176
e
L
k
aaa
1.00
0.65
0.45
L1
DS0985 - Rev 8
Inches
0.60
0.0256
0.75
0.018
1.00
0°
0.024
0.030
0.039
8°
0.10
0°
8°
0.004
page 15/22
LM124, LM224x, LM324x
SO14 package information
6.3
SO14 package information
Figure 32. SO14 package outline
Table 6. SO14 package mechanical data
Dimensions
Millimeters
Ref.
Min.
Typ.
Inches
Max.
Min.
Typ.
1.75
0.069
A
1.35
1.75
0.05
0.068
A1
0.10
0.25
0.004
0.009
A2
1.10
1.65
0.04
0.06
B
0.33
0.51
0.01
0.02
C
0.19
0.25
0.007
0.009
D
8.55
8.75
0.33
0.34
E
3.80
4.0
0.15
0.15
e
1.27
0.05
H
5.80
6.20
0.22
0.24
h
0.25
0.50
0.009
0.02
L
0.40
1.27
0.015
0.05
k
ddd
DS0985 - Rev 8
Max.
8° (max.)
0.10
0.004
page 16/22
LM124, LM224x, LM324x
Ordering information
7
Ordering information
Table 7. Order codes
Order code
Temperature range
ESD (HBM, CDM)
Vio max. @ 25 °C
LM124DT
-55 °C to 125 °C
250 V, 1.5 kV
5 mV
800 V, 1.5 kV
3 mV
LM224ADT
LM224APT
LM224DT
LM224PT
-40 °C to 105 °C
TSSOP14
250 V, 1.5 kV
5 mV
TSSOP14
QFN16 3x3
LM224WDT
700 V, 1.5 kV
LM324ADT
SO14
800 V, 1.5 kV
LM324APT
LM324AWDT
TSSOP14
3 mV
LM324AWPT
0 °C to 70 °C
SO14
TSSOP14
700 V, 1.5 kV
SO14
LM324WPT
TSSOP14
LM324DT
SO14
LM324PT
LM324QT
DS0985 - Rev 8
SO14
SO14
LM224QT
LM324WDT
Package
250 V, 1.5 kV
5 mV
TSSOP14
QFN16 3x3
Marking
124
224A
224
K425
224W
324A
324AW
324W
324
K427
page 17/22
LM124, LM224x, LM324x
Revision history
Table 8. Document revision history
Date
Revision
Changes
1-Mar-2001
1
1-Feb-2005
2
1-Jun-2005
3
ESD protection inserted in Table 2 on page 4.
25-Sep-2006
4
Editorial update.
First release
Added explanation of Vid and Vi limits in Table 2 on page 4.
Updated macromodel.
Removed DIP package and all information pertaining to it
Table 1: Device summary: Removed order codes LM224AN, LM224AD, LM324AN, and LM324AD;
updated packaging.
22-Aug-2013
5
Table 2: Absolute maximum ratings: removed N suffix power dissipation data; updated footnotes 5
and 6.
Renamed Figure 3, Figure 4, Figure 6, Figure 7, Figure 16, Figure 17, Figure 18, and Figure 19.
Updated axes titles of Figure 4, Figure 5, Figure 7, and Figure 17.
Removed duplicate figures.
Removed Section 5: Macromodels
06-Dec-2013
DS0985 - Rev 8
6
Table 2: Absolute maximum ratings: updated ESD data for HBM and MM.
10-Jun-2016
7
LM124, LM224, LM324 and LM224W, LM324W datasheets merged with LM224A, LM324A
datasheet. The following sections were reworked: Features, Description, Section 1: "Pin connections
and schematic diagram", Section 2: "Absolute maximum ratings and operating conditions", and
Section 3: "Electrical characteristics". The following sections were added: Related products and
Section 7: "Ordering information". Packaged silhouettes, pin connections, and mechanical data were
standardized and updated.
09-Sep-2019
8
Updated cover page, Section 2 Absolute maximum ratings and operating conditions and
Table 3. VCC + = 5 V, VCC - = ground, Vo = 1.4 V, Tamb = 25 °C (unless otherwise specified).
Updated Figure 2. Schematic diagram (LM224A, LM324A, LM224W, LM324W, one channel) and
Figure 3. Schematic diagram (LM124, LM224, LM324, one channel).
page 18/22
LM124, LM224x, LM324x
Contents
Contents
1
Pin connections and schematic diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
2
Absolute maximum ratings and operating conditions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
3
Electrical characteristics. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
4
Electrical characteristic curves . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
5
Typical single-supply applications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .11
6
Package information. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .13
7
6.1
QFN16 3x3 package information. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
6.2
TSSOP14 package information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
6.3
SO14 package information. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
Ordering information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .17
Revision history . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .18
DS0985 - Rev 8
page 19/22
LM124, LM224x, LM324x
List of tables
List of tables
Table 1.
Table 2.
Table 3.
Table 4.
Table 5.
Table 6.
Table 7.
Table 8.
Absolute maximum ratings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Operating conditions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
VCC + = 5 V, VCC - = ground, Vo = 1.4 V, Tamb = 25 °C (unless otherwise specified)
QFN16 3x3 mechanical data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
TSSOP14 package mechanical data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
SO14 package mechanical data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Order codes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Document revision history . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
DS0985 - Rev 8
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. 4
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14
15
16
17
18
page 20/22
LM124, LM224x, LM324x
List of figures
List of figures
Figure 1.
Figure 2.
Figure 3.
Figure 4.
Figure 5.
Figure 6.
Figure 7.
Figure 8.
Figure 9.
Figure 10.
Figure 11.
Figure 12.
Figure 13.
Figure 14.
Figure 15.
Figure 16.
Figure 17.
Figure 18.
Figure 19.
Figure 20.
Figure 21.
Figure 22.
Figure 23.
Figure 24.
Figure 25.
Figure 26.
Figure 27.
Figure 28.
Figure 29.
Figure 30.
Figure 31.
Figure 32.
DS0985 - Rev 8
Pin connections (top view) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Schematic diagram (LM224A, LM324A, LM224W, LM324W, one channel) .
Schematic diagram (LM124, LM224, LM324, one channel). . . . . . . . . . . .
Input bias current vs. temperature . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Output current limitation. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Input voltage range . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Supply current vs. supply voltage . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Gain bandwidth product vs. temperature . . . . . . . . . . . . . . . . . . . . . . . .
Common-mode rejection ratio. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Open loop frequency response . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Large signal frequency response . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Voltage follower pulse response . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Output characteristics (current sinking) . . . . . . . . . . . . . . . . . . . . . . . . .
Voltage follower pulse response (small signal) . . . . . . . . . . . . . . . . . . . .
Output characteristics (current sourcing) . . . . . . . . . . . . . . . . . . . . . . . .
Input current vs. supply voltage. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Large signal voltage gain vs. temperature . . . . . . . . . . . . . . . . . . . . . . .
Power supply and common mode rejection ratio vs. temperature . . . . . . .
Voltage gain vs. supply voltage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
AC coupled inverting amplifier . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
High input Z adjustable gain DC instrumentation amplifier . . . . . . . . . . . .
AC coupled non inverting amplifier . . . . . . . . . . . . . . . . . . . . . . . . . . . .
DC summing amplifier . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Non-inverting DC gain . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Low drift peak detector . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Active bandpass filter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
High input Z, DC differential amplifier. . . . . . . . . . . . . . . . . . . . . . . . . . .
Using symmetrical amplifiers to reduce input current (general concept) . . .
QFN16 3x3 package outline . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
QFN16 3x3 recommended footprint. . . . . . . . . . . . . . . . . . . . . . . . . . . .
TSSOP14 package outline . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
SO14 package outline . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
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. 2
. 3
. 3
. 8
. 8
. 8
. 8
. 8
. 8
. 9
. 9
. 9
. 9
. 9
. 9
10
10
10
10
11
11
11
11
11
11
12
12
12
13
14
15
16
page 21/22
LM124, LM224x, LM324x
IMPORTANT NOTICE – PLEASE READ CAREFULLY
STMicroelectronics NV and its subsidiaries (“ST”) reserve the right to make changes, corrections, enhancements, modifications, and improvements to ST
products and/or to this document at any time without notice. Purchasers should obtain the latest relevant information on ST products before placing orders. ST
products are sold pursuant to ST’s terms and conditions of sale in place at the time of order acknowledgement.
Purchasers are solely responsible for the choice, selection, and use of ST products and ST assumes no liability for application assistance or the design of
Purchasers’ products.
No license, express or implied, to any intellectual property right is granted by ST herein.
Resale of ST products with provisions different from the information set forth herein shall void any warranty granted by ST for such product.
ST and the ST logo are trademarks of ST. For additional information about ST trademarks, please refer to www.st.com/trademarks. All other product or service
names are the property of their respective owners.
Information in this document supersedes and replaces information previously supplied in any prior versions of this document.
© 2019 STMicroelectronics – All rights reserved
DS0985 - Rev 8
page 22/22
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