®
.SHORT-CIRCUIT PROTECTED OUTPUTS
.CLASS AB OUTPUT STAGE FOR MINIMAL
CROSSOV ER DISTORTION
.SINGLE SUPPLY OPERATION : + 3 V TO + 36V
.DUAL SU PPLIES : ±1. 5V TO ±18V
.LO W I NP U T BIA S C U RRE N T : 5 00nA M A X
.INTERNALLY COMPENSATED
.SIMILAR PERFORMANCE TO POPULAR
UA741
DESCRIPTION
The MC 3403 is a low-cos t, quad o peration al ampli-
fier with true differential inputs. The device has elec-
trical characteristics similar to the popular UA741.
However the MC3403, has several distinct advan-
tages over standard operational amplifier types in
single supply applications. The quad amplifier can
operate at s up ply v o l tages as low as 3.0 v olt s o r as
high as 36 volts with quiescent currents about one
third of those associate d wit h the UA741 (on a per
ampli fier basis ). The c ommon- mode inp ut range i n-
clude s the nega tive supply , t hereb y eliminatin g the
necessity for external biasing components in many
applications.
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
PIN CO NNECTIONS (top view)
ORDER CODES
Part
Number Temperature
Range Package
NDP
MC3303 –40oC, +105oC•••
MC3403 0oC, +70oC•••
MC3503 –55oC, +125oC•••
Example : MC3403N
LOW POWER QUAD BIPOLAR OPERATIONAL AMPLIFIERS
MC3303
MC3403 - MC3503
August 1998
N
DIP14
(Pl ast ic Pac kag e)
D
SO14
(Plastic Micropackage)
P
TSSOP14
(Thin Shrink Small Outline Package)
1/11
ABSOLUTE MAXIMUM RATINGS
Symbol Parameter MC3503 MC3403 MC3303 Unit
VCC Supply Voltage ±18 or 36 ±18 or 36 ±18 or 36 V
Vid Differential Input Voltage ±36 ±36 ±36 V
ViInput Voltage (note 1) ±18 ±18 ±18 V
– Output Short-circuit Duration (note 2) Infinite –
Ptot Power Dissipation 500 500 500 mW
Toper Operating Free-air Tem perature Range –55 to +125 0 to +70 –40 to +105 oC
Tstg Storage Temperature Range –65 to +150 –65 to +150 –65 to +150 oC
Notes : 1. For suppl y volt ages less than ±15V , the abs ol ut e maximum input v olt age i s equal t o t h e supply voltag e.
2. Any of t he ampl ifi er output s c an be short ed t o ground indef in itel y ; however more than one s h ou ld not be si mu ltaneo us ly s horted
as the maximum j unc tio n te mpe rature wil l be e xceed ed.
(1 stage)
Q20
Q23
8pF
C1
Q19 Q18
Q17
Q16
Output
Q27
V
CC
Q29
Q28
Q15
R3
25
Ω
Q30
R5
8.2k
Ω
V
CC
(Ground)
Q12
Q11
Q10
Q13
R2
37 k
Ω
R4
31k
Ω
R6
0.7k
Ω
Q9
Q8
Q7
Q6
Q14
R1
12k
Ω
Q4
Q3
Q2
Q21
Q22 Q24
Q25
Non-inverting
input
input
Inverting
Q5
Q1
SCHEMATIC DIAGRAM (each amplifier )
V
CC
V
CC
+3V to +30V
SI NGL E SUPP LY
1.5V to 18V
1.5V to 18V
V
CC
V
CC
DUAL SUPPLIES
MC3303 - MC3 403 - MC35 03
2/11
ELECTRICAL CHARACTERISTICS
VCC = ±15V, Tamb = +25 oC, (unless otherwise specified)
Symbol Parameter MC3303 - MC3403
MC3503 Unit
Min. Typ. Max.
VIO Input Offset Voltage (RS ≤ 10kΩ)
Tamb = 25oC
Tmin. ≤ Tamb ≤ Tmax. 15
6
mV
IIO Input Offset Current
Tamb = 25oC
Tmin. ≤ Tamb ≤ Tmax. 250
200
nA
Iib Input Bias Current
Tamb = 25oC
Tmin. ≤ Tamb ≤ Tmax. 40 500
800
nA
Avd Large Signal Voltage Gain (VO = ±10V, RL = 2kΩ)
Tamb = 25oC
Tmin. ≤ Tamb ≤ Tmax. 50
25 200 V/mV
SVR Supply Voltage Rejection Ratio (RS ≤ 10kΩ)
Tamb = 25oC
Tmin. ≤ Tamb ≤ Tmax. 77
77 90 dB
ICC Supply Current, all Amp, no Load
Tamb = 25oCMC3503
Tmin. ≤ Tamb ≤ Tmax. MC3503
2.8 7
4
8
5
mA
Vicm Input Common Mode Voltage Range
Tamb = 25oC
Tmin. ≤ Tamb ≤ Tmax. – 15
– 15 + 13
+ 13
V
CM R Common Mode Rejection Ratio (RS ≤ 10kΩ)
Tamb = 25oC
Tmin. ≤ Tamb ≤ Tmax. 70
70 90 dB
IOS Output Short-circuit Current 10 30 45 mA
± Vopp Output Voltage Swing
Tamb = 25oCR
L
= 10kΩ
RL = 2kΩ
Tmin. ≤ Tamb ≤ Tmax. RL = 2kΩ
RL = 10kΩ
12
10
10
12
13.5
13
V
SR Slew Rate (VI = ±10V RL = 2kΩ, CL = 100pF,
Tamb = 25oC, unity gain) 0.35 0.5 V/µs
tr, tfRise Time and Fall T ime (VO = ± 20mV, RL = 2kΩ, CL = 100pF
Tamb = 25oC, unity gain) 0.18 µs
KOV Overshoot (VI = ± 20mV, RL = 2kΩ, CL = 100pF,
Tamb = 25oC, unity gain) 10 %
ZIInput Impedance 0.3 1 MΩ
ZOOutput Impedance 75 Ω
Bom Power Bandwidth (RL = 2kΩ, C L = 100pF, Av = 1, Tamb = 25oC,
VO = 2Vpp, THD ≤ 5%) 9 kHz
B Unity Gain Bandwidth (VO = 10mV, RL = 2kΩ, CL = 100pF,
Tamb = 25oC, unity gain) 1 MHz
GBP Gain Bandwidth Product (VO = 10mV, RL = 2kΩ, C L = 100pF ,
f = 100kHz, Tamb = 25oC) 0.7 1 MHz
TH D Total Harmonic Distortion (f = 1kHz, Av = 20dB, RL = 2kΩ,
VO = 2Vpp, CL = 100pF, Tamb = 25oC) 0.02 %
enEquivalent Input Noise Voltage (f = 1kHz, Rs = 100Ω)43
nV
√Hz
MC3303 - MC3 403 - MC35 03
3/11
ELECTRICAL CHARACTERISTICS (continued)
Symbol Parameter MC3303 - MC3403 - MC3503 Unit
Min. Typ. Max.
∅m Phase Margin 60 Degrees
DVIO Input Offset Voltage Drift
Tmin. ≤ Tamb ≤ Tmax. 10 µV/oC
DIIO Input Offset Current Drift
Tmin. ≤ Tamb ≤ 25oC50
pA/oC
VO1/V02 Channel Separation 120 dB
ELECTRICAL CHARACTERISTICS
VCC+ = 5V, VCC– = Ground, Tamb = 25oC (unless otherwise specified)
Symbol Parameter MC3303 - MC3403 - MC3503 Unit
Min. Typ. Max.
VIO Input Offset Voltage (RS ≤ 10kΩ)
Tamb = 25 °C
Tmin ≤ Tamb ≤ Tmax 15
6
mV
IIO Input Offset Current
Tamb = 25oC
Tmin. ≤ Tamb ≤ Tmax. 250
200
nA
Iib Input Bias Current
Tamb = 25oC
Tmin. ≤ Tamb ≤ Tmax. 40 500
800
nA
Avd Large Signal Voltage Gain (VO = 1.4 to 2.4V, R L = 2kΩ)
Tamb = 25oC
Tmin. ≤ Tamb ≤ Tmax. 10
5200 V/mV
SVR Supply Voltage Rejection Ratio (RS ≤ 10kΩ)
Tamb = 25oC
Tmin. ≤ Tamb ≤ Tmax. 77
77 90 dB
ICC Supply Current (All Amp) MC3503 2.5 7
4mA
Vopp Output Voltage Range (RL = 10kΩ)
VCC = +5V
+5 < VCC ≤ +30V 3.3
VCC+-2V 3.5
VCC+-1.7V
V
MC3303 - MC3 403 - MC35 03
4/11
The MC3403 is made using four internally compen-
sated, two-stage operational amplifiers. The first
stage of each consists of differential input devices
Q24 and Q22 with input buffer transistors Q25 and
Q21 and the differential to single ended converter
Q3 and Q4. The first stage performs not only the first
stage gain function but also performs the level shift-
ing and transconductance reduction functions. By
reducing the transconductance a smaller compen-
sation capacitor (only 8pF) can be employed, thus
sav ing c hip area.
The transconductance reduction is accomplished
by splitting the collectors of Q24 and Q22. Another
feat ure of thi s input st age is that th e in put c omm on-
mode range can include the negative supply of
ground, in single supply operation, without satura-
tion ei ther t he i nput devic es or th e d iffere ntial to si n-
gle-ended converter.
The second stage consists of a standard current
source load amplifier stage. The output stage is
unique because it allows the output to swing to
ground in single supply operation and yet does not
exhibit any crossover distortion in split supply opera-
tions. This is possible because class AB operation
is utili ze d.
Each amplifier is biased from an internal voltage
regulator which has a low temperature coefficient
thus giving each amplifier good temperature charac-
ter istics as well a s ex ce llent pow er su pply rej ection.
CIRCUIT DESCRIPTION
20µs/div.
TYPICAL PERFORMANCE CURVES
AV = 100
1/4
MC3403 V
O
V
CC
V
CC
R1
10kΩ
V
O
=V
CC
1
2
V
O
R1
R1 + R2 V
CC
=
R2
10kΩ
APPLICATION INFORMATION
VOLTAGE REFERENCE
50kΩ
5kΩ
10kΩ
1/4
MC3403 V
O
V
CC
V
(ref)
RC
C
R
V
(ref)
=
1
2
V
CC
f
O
=1
2 π RC
For f
O
= 1kHz
R = 16kΩ
C = 0.01µF
WIE N BRIDGE OSCI LLAT OR
MC3303 - MC3 403 - MC35 03
5/11
1/4
MC3403
1/4
MC3403
1/4
MC3403
e
1
R1 a R1
b R1
1
CRR
1
CR
R
e
o
e
2
e
o
= C (1 + a + b) ( - )
e
1
e
2
APPLICATION INFORMATION ( contin ued)
HIGH IMPEDANCE DIFFERENTIAL
AMPLIFIER
R1
1/4
MC3403 V
O
V
(ref)
V
I
R2
V
O
Hysteresis
V
OH
V
OL
V
(ref)
V
I L
V
I H
VIL = R1
R1+ R2 [ VOL−V(ref) ] + V(ref)
VIH = R1
R1+ R2 [ VOH−V(ref) ] + V(ref)
H = R1
R1+ R2 [ VOH− VOL ]
COMPARATOR WI TH HYSTERESIS
1/4
MC3403 1/4
MC3403 1/4
MC3403
1/4
MC3403
R
R
CC
R
100kΩ
100kΩ
C1 R2
e
I
V
(ref)
R2
R1
Bandpass output
V
(ref)
V
(ref)
R3 V
(ref)
C1 Notch output
R = 160k Ω
C = 0.001 µ F
R1 = 1.6M Ω
R2 = 1.6M Ω
R3 = 1.6M Ω T = Passband notch gain
N
Where T = Center frequency gain
BP
V(ref
) = 1
2 VCC
fO = 1
2Π RC
R1 = QR
R2 = R1
TBP
R3 = TN R2
C1 = 10C
For : fO= 1kH z
Q = 10
TBP = 1
TN = 1
BI-QUAD FILTER
MC3303 - MC3 403 - MC35 03
6/11
1/4
MC3403 e
o
V
CC
C
O
C
O
= 10C
C
R3
R2
R1
e
I
V
(ref)
V
(ref)
1
2V
CC
=
C
Given fo = Center frequency ; choose values fo, C then R3 = Q
πfoC•
A (fo) = Gain at center frequency R1 = R3
2A ( fo )•
R2 = R1 R5
4Q2 R1− R5•
For less than 10% error from operational am plifier
Qofo
BW < 0.1 where fo and BW are expressed in H z
If source impedance varies , filter may be preceded with voltage follower buffer to stabilize filter parameters
MULTIPLE FEEDBACK BANDPASS FILTER
1/4
MC3403
V
(ref)
V
(ref)
1
2V
CC
=Triangle wave output
C
1/4
MC3403
R2
300kΩ
Square wave output
R3
75k
Ω
R1
100kΩ
V
(ref)
R1 + R2
4 CR R1
f =
f
if R3 = R2 R1
R2 + R1
R
f
APPLICATION INFORMATION ( contin ued)
FUNCTION GENERATOR
MC3303 - MC3 403 - MC35 03
7/11
TYPICAL PERFORMANCE CURVES
MC3303 - MC3 403 - MC35 03
8/11
PM-DIP14.EPS
PACKAGE MECHANICAL DATA
14 PINS - PLASTIC DIP
Dimensions Millimeters Inches
Min. Typ. Max. Min. Typ. Max.
a1 0.51 0.020
B 1.39 1.65 0.055 0.065
b 0.5 0.020
b1 0.25 0.010
D 20 0.787
E 8.5 0.335
e 2.54 0.100
e3 15.24 0.600
F 7.1 0.280
i 5.1 0.201
L 3.3 0.130
Z 1.27 2.54 0.050 0.100
DIP14.TBL
MC3303 - MC3 403 - MC35 03
9/11
PM-SO14.EPS
PACKAGE MECHANICAL DATA
14 PINS - PLASTIC MICROPACKAGE (SO)
Dimensions Millimeters Inches
Min. Typ. Max. Min. Typ. Max.
A 1.75 0.069
a1 0.1 0.2 0.004 0.008
a2 1.6 0.063
b 0.35 0.46 0.014 0.018
b1 0.19 0.25 0.007 0.010
C 0.5 0.020
c1 45o (typ.)
D 8.55 8.75 0.336 0.334
E 5.8 6.2 0.228 0.244
e 1.27 0.050
e3 7.62 0.300
F 3.8 4.0 0.150 0.157
G 4.6 5.3 0.181 0.208
L 0.5 1.27 0.020 0.050
M 0.68 0.027
S8
o
(max.)
SO14.TBL
MC3303 - MC3 403 - MC35 03
10/11
Information furnished is believed to be accurate and reliable. However, STMicroelectronics assumes no responsibility for the
consequences of use of such information nor for any infringement of patents or other rights of third parties which may result
from its use. No license is granted by implication or otherwise under any pat ent or patent rights of STMicroelectronics. Specifi-
cations mentioned in this publication are subject to change without notice. This publication supersedes and replaces all infor-
mation previously supplied. STMicroelectronics products are not authorized for use as critical components in life support
devices or systems without express written approval of STMicroelectronics.
© The ST logo is a trademark of STMicroelectronics
© 1998 STMicroelectronics – Printed in Italy – All Rights Reserved
STMicroelectronics GROUP OF COMPAN IES
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The Netherlands - Singapore - Spain - Sweden - Switzerland - Taiwan - Thailand - United Kingdom - U.S.A.
OR DE R COD E :
PACKAGE MECHANICAL DATA
14 PINS - THIN SHRINK SMALL OUTLINE PACKAGE
Dim. Millimeters Inches
Min. Typ. Max. Min. Typ. Max.
A 1.20 0.05
A1 0.05 0.15 0.01 0.006
A2 0.80 1.00 1.05 0.031 0.039 0.041
b 0.19 0.30 0.007 0.15
c 0.09 0.20 0.003 0.012
D 4.90 5.00 5.10 0.192 0.196 0.20
E 6.40 0.252
E1 4.30 4.40 4.50 0.169 0.173 0.177
e 0.65 0.025
k0
o8
o0
o8
o
l 0.50 0.60 0.75 0.09 0.0236 0.030
MC3303 - MC3 403 - MC35 03
11/11
