
LM124-N
,
LM224-N
LM2902-N
,
LM324-N
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SNOSC16D –MARCH 2000–REVISED JANUARY 2015
6.4 Thermal Information LM124-N / LM324-N /
LM224-N LM2902-N
THERMAL METRIC(1) UNIT
J/CDIP D/SOIC
14 PINS 14 PINS
RθJA Junction-to-ambient thermal resistance 88 88 °C/W
(1) For more information about traditional and new thermal metrics, see the IC Package Thermal Metrics application report, SPRA953.
6.5 Electrical Characteristics: LM124A/224A/324A
V+= 5.0 V, (1), unless otherwise stated LM124A LM224A LM324A
PARAMETER TEST CONDITIONS UNIT
MIN TYP MAX MIN TYP MAX MIN TYP MAX
Input Offset Voltage TA= 25°C(2) 1 2 1 3 2 3 mV
IIN(+) or IIN(−), VCM = 0 V,
Input Bias Current(3) 20 50 40 80 45 100 nA
TA= 25°C
IIN(+) or IIN(−), VCM = 0 V,
Input Offset Current 2 10 2 15 5 30 nA
TA= 25°C
V+= 30 V, (LM2902-N,
Input Common-Mode 0 0 0 V
V+−1.5 V+−1.5 V+−1.5
Voltage Range(4) V+= 26 V), TA= 25°C
Over Full Temperature Range,
RL=∞On All Op Amps 1.5 3 1.5 3 1.5 3
Supply Current mA
V+= 30 V (LM2902-N V+= 26 V)
0.7 1.2 0.7 1.2 0.7 1.2
V+= 5 V
Large Signal V+= 15 V, RL≥2 kΩ,50 100 50 100 25 100 V/mV
Voltage Gain (VO= 1 V to 11 V), TA= 25°C
Common-Mode DC, VCM = 0 V to V+−1.5 V, 70 85 70 85 65 85 dB
Rejection Ratio TA= 25°C
V+= 5 V to 30 V, (LM2902-N,
Power Supply 65 100 65 100 65 100 dB
V+= 5V to 26 V),
Rejection Ratio TA= 25°C
Amplifier-to-Amplifier f = 1 kHz to 20 kHz, TA= 25°C, −120 −120 −120 dB
Coupling(5) (Input Referred)
VIN+= 1 V, VIN−= 0 V,
Source 20 40 20 40 20 40 mA
V+= 15 V, VO= 2 V, TA= 25°C
VIN−= 1 V, VIN+= 0 V,
Output 10 20 10 20 10 20
Current V+= 15 V, VO= 2 V, TA= 25°C
Sink μA
VIN−= 1 V, VIN+= 0 V, 12 50 12 50 12 50
V+= 15 V, VO= 200 mV, TA= 25°C
V+= 15 V,
Short Circuit to Ground 40 60 40 60 40 60 mA
TA= 25°C(6)
Input Offset Voltage See(2) 4 4 5 mV
VOS Drift RS= 0 Ω7 20 7 20 7 30 μV/°C
Input Offset Current IIN(+) −IIN(−), VCM = 0 V 30 30 75 nA
(1) These specifications are limited to −55°C ≤TA≤+125°C for the LM124-N/LM124A. With the LM224-N/LM224A, all temperature
specifications are limited to −25°C ≤TA≤+85°C, the LM324-N/LM324A temperature specifications are limited to 0°C ≤TA≤+70°C, and
the LM2902-N specifications are limited to −40°C ≤TA≤+85°C.
(2) VO≃1.4V, RS= 0 Ωwith V+from 5 V to 30 V; and over the full input common-mode range (0 V to V+−1.5 V) for LM2902-N, V+from 5
V to 26 V.
(3) The direction of the input current is out of the IC due to the PNP input stage. This current is essentially constant, independent of the
state of the output so no loading change exists on the input lines.
(4) The input common-mode voltage of either input signal voltage should not be allowed to go negative by more than 0.3 V (at 25°C). The
upper end of the common-mode voltage range is V+−1.5 V (at 25°C), but either or both inputs can go to 32 V without damage (26 V for
LM2902-N), independent of the magnitude of V+.
(5) Due to 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 frequencies.
(6) 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 40 mA independent of the magnitude of V+. At values of supply voltage in excess of 15 V,
continuous short-circuits can exceed the power dissipation ratings and cause eventual destruction. Destructive dissipation can result
from simultaneous shorts on all amplifiers.
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