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LM124 Datasheet(PDF) 4 Page - STMicroelectronics

Part No. LM124
Description  LOW POWER QUAD OPERATIONAL AMPLIFIERS
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Maker  STMICROELECTRONICS [STMicroelectronics]
Homepage  http://www.st.com
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 4 page
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ELECTRICAL CHARACTERISTICS (continued)
Symbol
Parameter
LM124 - LM224 - LM324
Unit
Min.
Typ.
Max.
VOH
High Level Output Voltage
(VCC = +30V)
Tamb = +25
oCRL =2k
Tmin.
≤ Tamb ≤ Tmax.
Tamb = +25
oCRL = 10kΩ
Tmin.
≤ Tamb ≤ Tmax.
(VCC = +5V, RL =2k
Ω)
Tamb = +25
oC
Tmin.
≤ Tamb ≤ Tmax.
26
26
27
27
3.5
3
27
28
V
VOL
Low Level Output Voltage (RL = 10k
Ω)
Tamb = +25
oC
Tmin.
≤ Tamb ≤ Tmax.
520
20
mV
SR
Slew Rate
VCC = 15V, VI = 0.5 to 3V, RL =2k
Ω,CL = 100pF,
unity gain)
0.4
V/
µs
GBP
Gain Bandwidth Product
VCC = 30V, f = 100kHz, Vin = 10mV
RL =2k
Ω,CL = 100pF
1.3
MHz
THD
Total Harmonic Distortion
f = 1kHz, AV = 20dB, RL =2k
Ω,VO =2Vpp
CL = 100pF, VCC = 30V
0.015
%
en
Equivalent Input Noise Voltage
f = 1kHz, Rs = 100
Ω,VCC = 30V
40
nV
√
Hz
DVio
Input Offset Voltage Drift
7
30
µV/oC
DIIO
Input Offset Current Drift
10
200
pA/
oC
VO1/VO2
Channel Separation (note 5)
1kHz
≤ f ≤ 20kHz
120
dB
Notes :
1. Shor t-cir cui ts from the out put t o VCC can cause excessi ve heat i ng if VCC > 15V. T he maxi mum out put cur rent
is appr oxi mat el y 40mA i ndependent of the magni t ude of VCC. D estr ucti ve di ssipat i on can r es ult f r om simul ta-
neous short -cir cuit on al l ampli f iers.
2. The di r ect ion of the i nput cur rent is out of t he IC . Thi s cur r ent is essenti al l y constant, i ndependent of the st ate
of the out put so no l oadi ng change exists on the i nput l i nes.
3. Vo = 1.4V, Rs =0
Ω, 5V < VCC+ <30V , 0 <Vic <VCC+ -1.5V
4. The i nput common- mode vol t age of eit her i nput si gnal volt age shoul d not be allow ed to go negat i ve by mor e
than 0.3V . T he upper end of the common- mode vol tage r ange i s VCC
+ - 1.5V, but either or both i nputs can go
to + 32V w i thout damage.
5. Due t o the proxi mit y of ex ternal component s insure t hat coupl ing i s not ori gi nat ing vi a str ay capaci t ance be-
tw een these ext ernal par t s. T hi s t ypi call y can be detect ed as t his t ype of capaci tance i ncreases at higher f re-
quences.
6. This input cur rent onl y exi sts w hen t he volt age at any of t he i nput leads is dr iven negat ive. It i s due t o t he
coll ect or - base juncti on of t he i nput PN P transistor becomi ng forw ar d biased and ther eby act ing as input di-
odes clamps. I n addit i on to thi s di ode act i on, there i s al so N PN par asit i c act ion on the I C chip. t hi s t ransi st or
acti on can cause t he output vol t ages of the Op- amps t o go t o the VCC volt age l evel (or to ground f or a l arge
over dri ve) f or t he ti me dur at ion t han an input i s dr iven negati ve.
This i s not destr uct i ve and nor mal out put wi l l set up again f or i nput vol tage higher t han - 0.3V.
LM124 - LM224 - LM324
4/14




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