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PDF MC33179 Data sheet ( Hoja de datos )
| Número de pieza | MC33179 | |
| Descripción | (MC33178 / MC33179) Low Noise Operational Amplifiers | |
| Fabricantes | ON Semiconductor | |
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MC33178, MC33179
Low Power, Low Noise
Operational Amplifiers
The MC33178/9 series is a family of high quality monolithic
amplifiers employing Bipolar technology with innovative high
performance concepts for quality audio and data signal processing
applications. This device family incorporates the use of high
frequency PNP input transistors to produce amplifiers exhibiting low
input offset voltage, noise and distortion. In addition, the amplifier
provides high output current drive capability while consuming only
420 mA of drain current per amplifier. The NPN output stage used,
exhibits no deadband crossover distortion, large output voltage swing,
excellent phase and gain margins, low open−loop high frequency
output impedance, symmetrical source and sink AC frequency
performance.
The MC33178/9 family offers both dual and quad amplifier
versions in several package options.
Features
• 600 W Output Drive Capability
• Large Output Voltage Swing
• Low Offset Voltage: 0.15 mV (Mean)
• Low T.C. of Input Offset Voltage: 2.0 mV/°C
• Low Total Harmonic Distortion: 0.0024%
(@ 1.0 kHz w/600 W Load)
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• High Gain Bandwidth: 5.0 MHz
• High Slew Rate: 2.0 V/ms
• Dual Supply Operation: ±2.0 V to ±18 V
• ESD Clamps on the Inputs Increase Ruggedness without Affecting
Device Performance
• Pb−Free Packages are Available
VCC
Vin −
Iref
Iref
Vin + CC
CM
VO
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DUAL
8
1
8
1
PDIP−8
P SUFFIX
CASE 626
SOIC−8
D SUFFIX
CASE 751
8
1
Micro8
DM SUFFIX
CASE 846A
QUAD
14
1
14
1
14
1
PDIP−14
P SUFFIX
CASE 646
SOIC−14
D SUFFIX
CASE 751A
TSSOP−14
DTB SUFFIX
CASE 948G
ORDERING INFORMATION
See detailed ordering and shipping information in the package
dimensions section on page 2 of this data sheet.
VEE
Figure 1. Representative Schematic Diagram
(Each Amplifier)
DEVICE MARKING INFORMATION
See general marking information in the device marking
section on page 4 of this data sheet.
© Semiconductor Components Industries, LLC, 2006
October, 2006 − Rev. 7
1
Publication Order Number:
MC33178/D
1 page  
MC33178, MC33179
AC ELECTRICAL CHARACTERISTICS (VCC = +15 V, VEE = −15 V, TA = 25°C, unless otherwise noted.)
Characteristics
Figure
Symbol
Min
Typ
Max Unit
Slew Rate
(Vin = −10 V to +10 V, RL = 2.0 kW, CL = 100 pF, AV = +1.0 V)
Gain Bandwidth Product (f = 100 kHz)
17, 32
18
SR
GBW
1.2 2.0
2.5 5.0
V/ms
−
− MHz
AC Voltage Gain (RL = 600 W, VO = 0 V, f = 20 kHz)
Unity Gain Bandwidth (Open−Loop) (RL = 600 W, CL = 0 pF)
Gain Margin (RL = 600 W, CL = 0 pF)
Phase Margin (RL = 600 W, CL = 0 pF)
Channel Separation (f = 100 Hz to 20 kHz)
19, 20
21, 23, 24
22, 23, 24
25
AVO
BW
Am
fm
CS
− 50 − dB
− 3.0 − MHz
− 15 − dB
− 60 − Deg
− −120 −
dB
Power Bandwidth (VO = 20 Vpp, RL = 600 W, THD ≤ 1.0%)
Total Harmonic Distortion (RL = 600 W,, VO = 2.0 Vpp, AV = +1.0 V)
(f = 1.0 kHz)
(f = 10 kHz)
(f = 20 kHz)
26
BWp
THD
− 32 −
− 0.0024 −
− 0.014 −
− 0.024 −
kHz
%
Open Loop Output Impedance
(VO = 0 V, f = 3.0 MHz, AV = 10 V)
Differential Input Resistance (VCM = 0 V)
Differential Input Capacitance (VCM = 0 V)
Equivalent Input Noise Voltage (RS = 100 W,)
f = 10 Hz
f = 1.0 kHz
27 |ZO|
W
− 150 −
Rin − 200 − kW
Cin − 10 − pF
28 en
nV/√ Hz
− 8.0 −
− 7.5 −
Equivalent Input Noise Current
f = 10 Hz
f = 1.0 kHz
29 in
pA/ √ Hz
− 0.33 −
− 0.15 −
2400
2000 MC33178P/9P
1600
MC33179D
1200
800 MC33178D
400
0
−60 −40 −20 0 20 40 60 80 100 120 140 160 180
TA, AMBIENT TEMPERATURE (°C)
Figure 2. Maximum Power Dissipation
versus Temperature
4.0
3.0
2.0
1.0
0
−1.0
−2.0
−3.0
−4.0
−55
Unit 1
Unit 2
Unit 3
VCC = +15 V
VEE = −15 V
RS = 10 W
VCM = 0 V
−25 0
25 50 75
TA, AMBIENT TEMPERATURE (°C)
100
Figure 3. Input Offset Voltage versus
Temperature for 3 Typical Units
125
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5
5 Page 
MC33178, MC33179
To
Receiver
10 k
A1
−
+
From
Microphone
120 k
2.0 k A2
−
+
VR
200 k
10 k
10 k
1.0 mF
300 0.05 mF
820
1N4678
10 k
10 k A3
−
+
VR
Figure 34. Telephone Line Interface Circuit
Tip
Phone Line
Ring
APPLICATION INFORMATION
This unique device uses a boosted output stage to combine
a high output current with a drain current lower than similar
bipolar input op amps. Its 60° phase margin and 15 dB gain
margin ensure stability with up to 1000 pF of load
capacitance (see Figure 24). The ability to drive a minimum
600 W load makes it particularly suitable for telecom
applications. Note that in the sample circuit in Figure 34
both A2 and A3 are driving equivalent loads of
approximately 600 W .
The low input offset voltage and moderately high slew
rate and gain bandwidth product make it attractive for a
variety of other applications. For example, although it is not
single supply (the common mode input range does not
include ground), it is specified at +5.0 V with a typical
common mode rejection of 110 dB. This makes it an
excellent choice for use with digital circuits. The high
common mode rejection, which is stable over temperature,
coupled with a low noise figure and low distortion, is an
ideal op amp for audio circuits.
The output stage of the op amp is current limited and
therefore has a certain amount of protection in the event of
a short circuit. However, because of its high current output,
it is especially important not to allow the device to exceed
the maximum junction temperature, particularly with the
MC33179 (quad op amp). Shorting more than one amplifier
could easily exceed the junction temperature to the extent of
causing permanent damage.
Stability
As usual with most high frequency amplifiers, proper lead
dress, component placement, and PC board layout should be
exercised for optimum frequency performance. For
example, long unshielded input or output leads may result in
unwanted input/output coupling. In order to preserve the
relatively low input capacitance associated with these
amplifiers, resistors connected to the inputs should be
immediately adjacent to the input pin to minimize additional
stray input capacitance. This not only minimizes the input
pole frequency for optimum frequency response, but also
minimizes extraneous “pick up” at this node. Supplying
decoupling with adequate capacitance immediately adjacent
to the supply pin is also important, particularly over
temperature, since many types of decoupling capacitors
exhibit great impedance changes over temperature.
Additional stability problems can be caused by high load
capacitances and/or a high source resistance. Simple
compensation schemes can be used to alleviate these
effects.
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| PDF Descargar | [ Datasheet MC33179.PDF ] | |
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