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Quad Low Power Operational Amplifiers
The MC3403 is a low cost, quad operational amplifier with true differential inputs. The device has electrical characteristics similar to the popular MC1741C. However, the MC3403 has several distinct advantages over standard operational amplifier types in single supply applications. The quad amplifier can operate at supply voltages as low as 3.0 V or as high as 36 V with quiescent currents about one third of those associated with the MC1741C (on a per amplifier basis). The common mode input range includes the negative supply, thereby eliminating the necessity for external biasing components in many applications. The output voltage range also includes the negative power supply voltage.
MC3403 MC3303
QUAD DIFFERENTIAL INPUT OPERATIONAL AMPLIFIERS
SEMICONDUCTOR TECHNICAL DATA
* * * * * * * * * * *
Short Circuit Protected Outputs Class AB Output Stage for Minimal Crossover Distortion True Differential Input Stage Single Supply Operation: 3.0 V to 36 V Split Supply Operation: 1.5 V to 18 V Low Input Bias Currents: 500 nA Max Four Amplifiers Per Package Internally Compensated Similar Performance to Popular MC1741C Industry Standard Pinouts ESD Diodes Added for Increased Ruggedness Single Supply
3.0 V to 36 V 1 2 3 4 VEE, Gnd VEE VCC VCC 1 2 3 4 1.5 V to 18 V 2 Inputs 1 3 VCC Symbol VCC VCC, VEE VIDR VICR Tstg TA -40 to +85 0 to +70 TJ 150 C Value 36 18 36 18 -55 to +125 Vdc Vdc C C Device MC3303D MC3303P MC3403D MC3403P (Top View) Unit Vdc Inputs 2 6 Out 2 7 4 5 + 2 - 4+ - - + 1 3 - + 13 Inputs 4 12 11 10 Inputs 3 9 8 Out 3 VEE/Gnd Out 1 1 14 Out 4 1.5 V to 18 V
14 1 14 1
D SUFFIX PLASTIC PACKAGE CASE 751A (SO-14)
Split Supplies
P SUFFIX PLASTIC PACKAGE CASE 646
PIN CONNECTIONS
MAXIMUM RATINGS
Rating Power Supply Voltages Single Supply Split Supplies Input Differential Voltage Range (Note 1) Input Common Mode Voltage Range (Notes 1, 2) Storage Temperature Range Operating Ambient Temperature Range MC3303 MC3403 Junction Temperature
ORDERING INFORMATION
Operating Temperature Range TA = - 40 to +85C TA = 0 to +70C Package SO-14 Plastic DIP SO-14 Plastic DIP
NOTES: 1. Split power supplies. 2. For supply voltages less than 18 V, the absolute maximum input voltage is equal to the supply voltage.
(c) Motorola, Inc. 1996
Rev 5
MOTOROLA ANALOG IC DEVICE DATA
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MC3403 MC3303
ELECTRICAL CHARACTERISTICS (VCC = +15 V, VEE = -15 V for MC3403; VCC = +14 V, VEE = Gnd for MC3303
TA = 25C, unless otherwise noted.) MC3403 Characteristic Ch ii Input Offset Voltage TA = Thigh to Tlow (Note 1) Input Offset Current TA = Thigh to Tlow Large Signal Open Loop Voltage Gain VO = 10 V, RL = 2.0 k TA = Thigh to Tlow Input Bias Current TA = Thigh to Tlow Output Impedance f = 20 Hz Input Impedance f = 20 Hz Output Voltage Range RL = 10 k RL = 2.0 k RL = 2.0 k, TA = Thigh to Tlow Input Common Mode Voltage Range Common Mode Rejection RS 10 k Power Supply Current (VO = 0) RL = Individual Output Short-Circuit Current (Note 2) Positive Power Supply Rejection Ratio Negative Power Supply Rejection Ratio Average Temperature Coefficient of Input Offset Current TA = Thigh to Tlow Average Temperature Coefficient of Input Offset Voltage TA = Thigh to Tlow Power Bandwidth AV = 1, RL = 10 k, VO = 20 V(p-p), THD = 5% Small-Signal Bandwidth AV = 1, RL = 10 k, VO = 50 mV Slew Rate AV = 1, Vi = -10 V to +10 V Rise Time AV = 1, RL = 10 k, VO = 50 mV Fall Time AV = 1, RL = 10 k, VO = 50 mV Overshoot AV = 1, RL = 10 k, VO = 50 mV Phase Margin AV = 1, RL = 2.0 k, VO = 200 pF Crossover Distortion (Vin = 30 mVpp,Vout= 2.0 Vpp, f = 10 kHz)
NOTES: 1. Thigh = +70C for MC3403, +85C for MC3303 Tlow = 0C for MC3403, -40C for MC3303 2. Not to exceed maximum package power dissipation.
MC3303 Max 10 12 50 200 - - -500 -800 - - - - - - - 7.0 45 150 150 - Min - - - - 20 15 - - - 0.3 12 10 10 +12 V -VEE 70 - 10 - - - Typ 2.0 - 30 - 200 - -200 - 75 1.0 12.5 12 - +12.5 V -VEE 90 2.8 30 30 30 50 Max 8.0 10 75 250 - - -500 -1000 - - - - - - - 7.0 45 150 150 - V dB mA mA V/V V/V pA/C nA M V Unit Ui mV nA V/mV
Symbol S bl VIO IIO AVOL
Min - - - - 20 15
Typ 2.0 - 30 - 200 - -200 - 75 1.0 13.5 13 - +13 V -VEE 90 2.8 20 30 30 50
IIB zo zi VO
- - - 0.3 12 10 10 +13 V -VEE 70 - 10 - - -
VICR CMR ICC, IEE ISC PSRR+ PSRR- IIO/T
VIO/T
-
10
-
-
10
-
V/C
BWp BW SR tTLH tTLH os m -
- - - - - - - -
9.0 1.0 0.6 0.35 0.35 20 60 1.0
- - - - - - - -
- - - - - - - -
9.0 1.0 0.6 0.35 0.35 20 60 1.0
- - - - - - - -
kHz MHz V/s s s % Degrees %
2
MOTOROLA ANALOG IC DEVICE DATA
MC3403 MC3303
ELECTRICAL CHARACTERISTICS (VCC = 5.0 V, VEE = Gnd, TA = 25C, unless otherwise noted.)
MC3403 Characteristic Ch ii Input Offset Voltage Input Offset Current Input Bias Current Large Signal Open Loop Voltage Gain RL = 2.0 k Power Supply Rejection Ratio Output Voltage Range (Note 3) RL = 10 k, VCC = 5.0 V RL = 10 k, 5.0 VCC 30 V Power Supply Current Channel Separation f = 1.0 kHz to 20 kHz (Input Referenced) Symbol S bl VIO IIO IIB AVOL PSRR VOR 3.3 VCC-2.0 ICC CS - - 3.5 VCC-1.7 2.5 -120 - - 7.0 - 3.3 VCC-2.0 - - 3.5 VCC-1.7 2.5 -120 - - 7.0 - mA dB Min - - - 10 - Typ 2.0 30 -200 200 - Max 10 50 -500 - 150 Min - - - 10 - MC3303 Typ - - - 200 - Max 10 75 -500 - 150 Unit Ui mV nA nA V/mV V/V Vpp
NOTES: 3. Output will swing to ground with a 10 k pull down resistor.
Representative Schematic Diagram
(1/4 of Circuit Shown) Bias Circuitry Common to Four Amplifiers VCC Q27 Q17 Q16
Output Q19 Q20 Q18
Q23 5.0 pF 31k + Q22 Inputs - Q2 Q3 Q4 Q21 Q25 Q5 60 k Q6 Q7 Q8 Q10 Q24 Q1 2.0 k Q9 37 k
40 k Q28 Q15 Q13 Q11 25 Q12
Q29
Q30 2.4 k
VEE (Gnd)
MOTOROLA ANALOG IC DEVICE DATA
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MC3403 MC3303
CIRCUIT DESCRIPTION
Inverter Pulse Response stage performs not only the first stage gain function but also performs the level shifting and transconductance reduction functions. By reducing the transconductance, a smaller compensation capacitor (only 5.0 pF) can be employed, thus saving chip area. The transconductance reduction is accomplished by splitting the collectors of Q24 and Q22. Another feature of this input stage is that the input common mode range can include the negative supply or ground, in single supply operation, without saturating either the input devices or the differential to single-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 operation. This is possible because Class AB operation is utilized. Each amplifier is biased from an internal voltage regulator which has a low temperature coefficient, thus giving each amplifier good temperature characteristics as well as excellent power supply rejection.
5.0 V/DIV
20 s/DIV
The MC3403/3303 is made using four internally compensated, two-stage operational amplifiers. The first stage of each consists of differential input device Q24 and Q22 with input buffer transistors Q25 and Q21 and the differential to single ended converter Q3 and Q4. The first
Figure 1. Sine Wave Response
120 AV = 100 A VOL , LARGE SIGNAL OPEN LOOP VOLTAGE GAIN (dB) 0.5 V/DIV 100 80 60 40 20 0 -20
Figure 2. Open Loop Frequency Response
VCC = 15 V VEE = -15 V TA = 25C
50 mV/DIV *Note Class A B output stage produces distortion less sinewave. 50 s/DIV
1.0
10
100 1.0 k 10 k f, FREQUENCY (Hz)
100 k
1.0 M
4
MOTOROLA ANALOG IC DEVICE DATA
MC3403 MC3303
Figure 3. Power Bandwidth
30 VO, OUTPUT VOLTAGE (Vpp ) 25 - 20 15 10 5.0 TA = 25C 0 -5.0 1.0 k 10 k 100 k f, FREQUENCY (Hz) 1.0 M +
-15 V VO 10 k +15 V
Figure 4. Output Swing versus Supply Voltage
VO, OUTPUT VOLTAGE RANGE (V pp) 30 TA = 25C
20
10
0 0 2.0 4.0 6.0 8.0 10 12 14 16 18 VCC AND (VEE), POWER SUPPLY VOLTAGES (V) 20
Figure 5. Input Bias Current versus Temperature
300 I IB, INPUT BIAS CURRENT (nA) VCC = 15 V VEE = -15 V TA = 25C
Figure 6. Input Bias Current versus Supply Voltage
I IB , INPUT BIAS CURRENT (nA)
170
200
160
100
-75 -55
-35
-15
5.0
25
45
65
85
105 125
150
0
2.0
4.0
6.0
8.0
10
12
14
16
18
20
T, TEMPERATURE (C)
VCC AND (VEE), POWER SUPPLY VOLTAGES (V)
Figure 7. Voltage Reference
VCC VCC 10 k R2 -
Figure 8. Wien Bridge Oscillator
50 k 1N914 5.0 k
1/2
MC3403 + 10 k R1
VO
10 k Vref -
1/2
1N914 VCC VO fo = 1 2RC R
MC3403 + R1 VO = R1 +R2 1 VO = V 2 CC 1 Vref = V 2 CC R C C
For: fo = 1.0 kHz R = 16 k C = 0.01 F
MOTOROLA ANALOG IC DEVICE DATA
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MC3403 MC3303
Figure 9. High Impedance Differential Amplifier
e1 - 1 R C
Figure 10. Comparator with Hysteresis
R2 VOH Vref R1 - VO VO VOL VinL R1 VinL = (VOL -Vref) +Vref R1 +R2 R1 VinH = (VOH -Vref) +Vref R1 +R2 VinH Vref Hysteresis
1/2
R
MC3403 + -
1/2
R1
a R1
1/2
MC3403 + b R1 - 1/2 MC3403 + 1 R C
eo
Vin
MC3403 +
e2
R Vh = R1 (VOH -VOL) R1 +R2
eo = C (1 +a +b) (e2 -e1)
Figure 11. Bi-Quad Filter
R C1 Vin C -
1/2
R 100 k C - 100 k
fo = 1 2RC R1 = QR R2 = R1 TBP R3 = TNR2 C1 = 10 C 1 Vref = V 2 CC R = 160 k C = 0.001 F R1 = 1.6 M R2 = 1.6 M R3 = 1.6 M
R2
MC3403 + Vref Vref R2 R1 Bandpass Output
1/2
MC3403 + Vref
-
1/2
MC3403 + R3 -
1/2
C1 Notch Output
For: fo Q TBP TN
= 1.0 kHz = 10 =1 =1
Where:
TBP = center frequency gain TN = passband notch gain Vref
MC3403 +
Figure 12. Function Generator
1 Vref = V 2 CC Vref + Triangle Wave Output
1/2
Figure 13. Multiple Feedback Bandpass Filter
VCC
R2 300 k R3 + 75 k R1 100 k Vref
1/2
C Vin Square Wave Output R1
C
R3 -
1/2
CO VO CO = 10 C 1 Vref = V 2 CC
MC3403 - C Rf f= R1 +RC 4 CRf R1
MC3403 -
R2 Vref Given:
MC3403 +
fo = center frequency A(fo) = gain at center frequency Q fo C R3 2 A(fo) R1 R5 4Q2 R1 -R5 Oo fo < 0.1 BW
if R3 =
R2 R1 R2 +R1
Choose value fo, C Then: R3 = R1 = R2 =
For less than 10% error from operational amplifier where fo and BW are expressed in Hz.
If source impedance varies, filter may be preceded with voltage follower buffer to stabilize filter parameters.
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MOTOROLA ANALOG IC DEVICE DATA
MC3403 MC3303
OUTLINE DIMENSIONS
D SUFFIX PLASTIC PACKAGE CASE 751A-03 ISSUE F (SO-14) -A-
14 8 NOTES: 1. DIMENSIONING AND TOLERANCING PER ANSI Y14.5M, 1982. 2. CONTROLLING DIMENSION: MILLIMETER. 3. DIMENSIONS A AND B DO NOT INCLUDE MOLD PROTRUSION. 4. MAXIMUM MOLD PROTRUSION 0.15 (0.006) PER SIDE. 5. DIMENSION D DOES NOT INCLUDE DAMBAR PROTRUSION. ALLOWABLE DAMBAR PROTRUSION SHALL BE 0.127 (0.005) TOTAL IN EXCESS OF THE D DIMENSION AT MAXIMUM MATERIAL CONDITION.
-B-
1 7
P 7 PL 0.25 (0.010)
M
B
M
G C
R X 45 _
F
-T-
SEATING PLANE
D 14 PL 0.25 (0.010)
M
K TB
S
M A
S
J
DIM A B C D F G J K M P R
MILLIMETERS MIN MAX 8.55 8.75 3.80 4.00 1.35 1.75 0.35 0.49 0.40 1.25 1.27 BSC 0.19 0.25 0.10 0.25 0_ 7_ 5.80 6.20 0.25 0.50
INCHES MIN MAX 0.337 0.344 0.150 0.157 0.054 0.068 0.014 0.019 0.016 0.049 0.050 BSC 0.008 0.009 0.004 0.009 0_ 7_ 0.228 0.244 0.010 0.019
P SUFFIX PLASTIC PACKAGE CASE 646-06 ISSUE L
NOTES: 1. LEADS WITHIN 0.13 (0.005) RADIUS OF TRUE POSITION AT SEATING PLANE AT MAXIMUM MATERIAL CONDITION. 2. DIMENSION L TO CENTER OF LEADS WHEN FORMED PARALLEL. 3. DIMENSION B DOES NOT INCLUDE MOLD FLASH. 4. ROUNDED CORNERS OPTIONAL. DIM A B C D F G H J K L M N INCHES MIN MAX 0.715 0.770 0.240 0.260 0.145 0.185 0.015 0.021 0.040 0.070 0.100 BSC 0.052 0.095 0.008 0.015 0.115 0.135 0.300 BSC 0_ 10_ 0.015 0.039 MILLIMETERS MIN MAX 18.16 19.56 6.10 6.60 3.69 4.69 0.38 0.53 1.02 1.78 2.54 BSC 1.32 2.41 0.20 0.38 2.92 3.43 7.62 BSC 0_ 10_ 0.39 1.01
14
8
B
1 7
A F C N H G D
SEATING PLANE
L
J K M
MOTOROLA ANALOG IC DEVICE DATA
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MC3403 MC3303
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MOTOROLA ANALOG IC DEVICE DATA MC3403/D
*MC3403/D*

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