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MC33079
Low noise quad operational amplifier
Features

Low voltage noise: 4.5 nV/Hz High gain bandwidth product: 15 MHz High slew rate: 7 V/s Low distortion: 0.002% Large output voltage swing: +14.3 V/-14.6 V Excellent frequency stability ESD protection 2 kV Macromodel included in this specification SO-14 (Plastic micropackage) DIP14 (Plastic package)
Description
The MC33079 is a monolithic quad operational amplifier particularly well suited for audio applications. It offers low voltage noise (4.5 nV/Hz) and high frequency performance (15 MHz gain bandwidth product, 7 V/s slew rate). In addition the MC33079 has a very low distortion (0.002%) and excellent phase/gain margins. The output stage allows a large output voltage swing and symmetrical source and sink currents. Pin connections (top view)
Output 1 1 Inverting Input 1 2 Non-inverting Input 1 3 VCC + 4 Non-inverting Input 2 Inverting Input 2 5 6 + + + + 14 Output 4 13 Inverting Input 4 12 Non-inverting Input 4 11 VCC 10 Non-inverting Input 3 9 8 Inverting Input 3 Output 3
Output 2 7
March 2008
Rev 4
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Schematic diagram (1/4 MC33079)
MC33079
1
Schematic diagram (1/4 MC33079)
Figure 1. Schematic diagram (1/4 MC33079)
VCC
Inverting Input
Non-inverting Input
Output
VCC
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MC33079
Absolute maximum ratings and operating conditions
2
Absolute maximum ratings and operating conditions
Table 1.
Symbol VCC Vid Vi Supply voltage Differential input voltage Input voltage
(1) (1)
Absolute maximum ratings (AMR)
Parameter Value 18 or +36 30 15 Infinite +150 -65 to +150 80 105 33 31 2 200 1.5 Unit V V V s C C C/W
Output short-circuit duration Tj Tstg Rthja Junction temperature Storage temperature Thermal resistance junction to ambient (2) (3) DIP14 SO-14 Thermal resistance junction to case (2) (3) DIP14 SO-14 HBM: human body model(4) ESD MM: machine model
(5)
Rthjc
C/W kV V kV
CDM: charged device
model(6)
1. Either or both input voltages must not exceed the magnitude of VCC+ or VCC-. 2. Short-circuits can cause excessive heating. Destructive dissipation can result from simultaneous shortcircuits on all amplifiers. 3. Rth are typical values. 4. Human body model: 100 pF discharged through a 1.5 k resistor between two pins of the device, done for all couples of pin combinations with other pins floating. 5. 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 ), done for all couples of pin combinations with other pins floating. 6. Charged device model: all pins plus package are charged together to the specified voltage and then discharged directly to the ground.
Table 2.
Symbol VCC Toper Vicm
Operating conditions
Parameter Supply voltage Operating free-air temperature range Input common mode voltage range (Vio= 5mV, Vo= 0V) Value 2.5 to 15 -40 to 105 13 to 14 Unit V C V
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Electrical characteristics
MC33079
3
Table 3.
Symbol Vio DVio Iio Iib Avd
Electrical characteristics
VCC+ = +15V, VCC- = -15V, Tamb = 25C (unless otherwise specified)
Parameter Input offset voltage (Vo = 0V, Vic = 0V) Tmin Tamb Tmax Input offset voltage drift Vo = 0V, Vic = 0V, Tmin Tamb Tmax Input offset current (Vo = 0V, Vic = 0V) Tmin Tamb Tmax Input bias current (Vo = 0V, Vic = 0V) Tmin Tamb Tmax Large signal voltage gain (RL = 2k Vo = 10V) , Tmin Tamb Tmax Output voltage swing (Vid = 1V) RL = 600 RL = 600 RL = 2.0k RL = 2.0k RL = 10k RL = 10k Common-mode rejection ratio (Vic = 13V) Supply voltage rejection ratio (VCC /
+
Min.
Typ.
Max. 2.5 3.5
Unit mV V/C
2 10 250 90 85 100 150 175 750 800
nA nA dB
Vopp
13.2 13.5 80 +15V / -15V to +5V / -5V) 80 15 20
12.2 -12.7 14 -14.2 14.3 -14.6 100 105 29 37 8
V -13.2 -14 dB dB mA 10 12
CMR SVR Io
VCC-=
Output short-circuit current (Vid = 1V, output to ground) Source Sink Supply current (Vo = 0V, all amplifiers) Tmin Tamb Tmax , Slew rate (Vi = -10V to +10V, RL = 2k CL = 100pF, AV = +1) Gain bandwidth product (RL = 2k CL = 100pF, f = 100kHz) , Unity gain bandwidth (open loop) Gain margin (RL = 2k) CL = 0pF CL = 100pF Phase margin (RL = 2k) CL = 0pF CL = 100pF Equivalent input noise voltage (RS = 100 f = 1kHz) , Equivalent input noise current (f = 1kHz)
ICC SR GBP B Am
mA V/s MHz MHz dB
5 10
7 15 9 -11 -6 55 30 4.5 0.5
m
Degrees
en in
nV ----------Hz pA ----------Hz
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MC33079 Table 3.
Symbol THD
Electrical characteristics VCC+ = +15V, VCC- = -15V, Tamb = 25C (unless otherwise specified) (continued)
Parameter Min. Typ. 0.002 120 120 37 175 12 Max. Unit % dB kHz k pF
, Total harmonic distortion (RL = 2k f = 20Hz to 20kHz, Vo = 3Vrms, AV = +1) , Full power bandwidth (Vo = 27Vpp, RL = 2k THD 1%) Output impedance (Vo = 0V, f = 9MHz) Input resistance (Vic = 0V) Input capacitance (Vic = 0V)
VO1/VO2 Channel separation (f = 20Hz to 20kHz) FPB Zo Ri Ci
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Electrical characteristics
MC33079
Figure 2.
10
Supply current vs. supply voltage
Figure 3.
Output voltage vs. supply voltage
15
8 Supply Current (mA)
10
6
Output Voltage (V)
5 0 -5 Vid = 1V RL = 600
4
2
-10
0 0 5 10 15 Supply Voltage (V) 20 25 30
-15 0 5 10 15 Supply Voltage (V)
Figure 4.
Equivalent input noise voltage vs. frequency
Figure 5.
Output short circuit current vs. output voltage
Equivalent Input Noise Voltage (nV/VHz)
10
Output Short Circuit Current (mA)
60 40 20 0 -20 -40
8
VCC = 15V, Av = 100 Rs = 100, Tamb = 25C
6
4
VCC = 0/30V Tamb = 25C
2
0 0.01
0.1
1
10
100
1000
0
10
20
30
Frequency (kHz)
Output Voltage (V)
Figure 6.
Output voltage vs. supply voltage
Figure 7.
THD + noise vs. frequency
15 Output Voltage (V) 10 5 0 -5
Vid = 1V RL = 2k
THD+Noise (%)
0.01
RL = 2k, Vo = 3Vrms VCC = 15V
0.005
gain = 10
gain = 1
0 0.01
-10 -15 0 5 10 15 Supply Voltage (V)
0.1 1 Frequency (kHz) 10 100
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MC33079
Electrical characteristics
Figure 8.
Voltage gain and phase vs. frequency
Figure 9.
Total harmonic distortion vs. output voltage
60 40 Gain (dB) 20 0
180
0.020
phase gain
120 60 0
THD+Noise (%) 0.015
Phase (Deg)
RL = 2k, f = 1kHz VCC = 15V, Av = 10
0.010
-20 -40 10 100
RL = 2k, CL = 100pF VCC = 15V, Av = -100
0.005
-60
0.000
1000 Frequency (kHz)
10000
-120 100000
0
1
2
3
4
5
6
7
8
9
Vout (Vrms)
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Package information
MC33079
4
Package information
In order to meet environmental requirements, ST offers these devices in ECOPACK(R) packages. These packages have a lead-free second level interconnect. The category of second level interconnect is marked on the package and on the inner box label, in compliance with JEDEC Standard JESD97. The maximum ratings related to soldering conditions are also marked on the inner box label. ECOPACK is an ST trademark. ECOPACK specifications are available at: www.st.com.
4.1
DIP14 package information
Figure 10. DIP14 package mechanical drawing
Table 4.
DIP14 package mechanical data
Dimensions
Ref. Min. a1 B b b1 D E e e3 F I 0.51 1.39
Millimeters Typ. Max. Min. 0.020 1.65 0.5 0.25 20 8.5 2.54 15.24 7.1 5.1 0.055
Inches Typ. Max.
0.065 0.020 0.010 0.787 0.335 0.100 0.600 0.280 0.201
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MC33079 Table 4.
L Z 1.27
Package information DIP14 package mechanical data
3.3 2.54 0.050 0.130 0.100
4.2
SO-14 package information
Figure 11. SO-14 package mechanical drawing
Table 5.
SO-14 package mechanical data
Dimensions
Ref. Min. A a1 a2 b b1 C c1 D E e e3 F 3.8 8.55 5.8 0.35 0.19 0.1
Millimeters Typ. Max. 1.75 0.2 1.65 0.46 0.25 0.5 45 (typ.) 8.75 6.2 1.27 7.62 4.0 0.149 0.336 0.228 0.013 0.007 0.003 Min.
Inches Typ. Max. 0.068 0.007 0.064 0.018 0.010 0.019
0.344 0.244 0.050 0.300 0.157
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Package information Table 5.
G L M S
MC33079 SO-14 package mechanical data
4.6 0.5 5.3 1.27 0.68 8 (max.) 0.181 0.019 0.208 0.050 0.026
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MC33079
Ordering information
5
Ordering information
Table 6. Order codes
Temperature range Package DIP14 -40C to +105C SO-14 -40C to + 105C SO-14 (Automotive grade) Packaging Tube Tube or Tape & reel Tube or Tape & reel Marking MC33079N 33079 33079Y
Order code MC33079N MC33079D MC33079DT MC33079YD(1) MC33079YDT(1)
1. Qualification and characterization according to AEC Q100 and Q003 or equivalent, advanced screening according to AEC Q001 & Q 002 or equivalent are on-going.
6
Revision history
Table 7.
Date 10-Oct-2001 23-Jun-2005
Document revision history
Revision 1 2 Initial release. PPAP references inserted in the datasheet. See order codes table. Added Rthja, Rthjc and ESD values in Table 1: Absolute maximum ratings (AMR). Added footnote for automotive grade order codes in order codes table. Updated document format. Corrected value for ESD HBM parameter. Removed section on Macromodel. Changes
21-Nov-2007
3
13-Mar-2008
4
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MC33079
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