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Электронный компонент: 33078

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MC33078
LOW NOISE DUAL OPERATIONAL AMPLIFIERS
November 1997
.
LOW VOLTAGE NOISE : 4.5nV/
Hz
.
HIGH GAIN BANDWIDTH PRODUCT : 15MHz
.
HIGH SLEW RATE : 7V/
s
.
LOW DISTORTION : 0.002%
.
LARGE
OUTPUT
VOLTAGE
SWING
:
+14.3V/-14.6V
.
LOW INPUT OFFSET VOLTAGE
.
EXCELLENT FREQUENCY STABILITY
.
ESD PROTECTION 2kV
.
MACROMODEL INCLUDED IN THIS
SPECIFICATION
N
DIP8
(Plastic Package)
DESCRIPTION
The MC33078 is a monolithic dual operational
amplifier particularly well suited for audio applica-
tions. It offers low voltage noise (4.5nV/

Hz ) and
high frequency performances (15MHz Gain Band-
width product, 7V/
s slew rate).
In addition the MC33078 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.
1
2
3
4
5
6
7
8
-
+
-
+
Output 1
Inverting input 1
Non-invertinginput 1
V
CC
V
CC
Output 2
Inverting input 2
Non-inverting input 2
-
+
PIN CONNECTIONS (top view)
D
SO8
(Plastic Micropackage)
ORDER CODES
Part Number
Temperature Range
Package
N
D
MC33078
-40, +105
o
C
1/9
ABSOLUTE MAXIMUM RATINGS
Symbol
Parameter
Value
Unit
V
CC
Supply Voltage
18 or +36
V
V
id
Differential Input Voltage - (note 1)
30
V
V
i
Input Voltage - (note 1)
15
V
Output Short-Circuit Duration - (note 2)
Infinite
T
oper
Operating Free-air Temperature Range
-40 to +105
o
C
T
j
Maximum Junction Temperature
+150
o
C
T
stg
Storage Temperature
-65 to +150
o
C
P
to t
Maximum Power Dissipation - (note 2)
500
mW
Notes :
1.
Either or both input voltages must not exceed the magnitude of V
CC
+
or V
CC
-
2.
Power dissipation must be considered to ensure maximum junction temperature (T
j
) is not exceeded
Inverting
Input
Non-inverting
Input
V
CC
Output
V
CC
SCHEMATIC DIAGRAM (1/2 MC33078)
OPERATING CONDITIONS
Symbol
Parameter
Value
Unit
V
CC
Supply Voltage
2.5 to
15
V
MC33078
2/9
ELECTRICAL CHARACTERISTICS
V
CC
+
= +15V, V
CC
-
= -15V, T
amb
= 25
o
C (unless otherwise specified)
Symbol
Parameter
Min.
Typ.
Max.
Unit
V
io
Input Offset Voltage (V
o
= 0V, V
ic
= 0V)
T
amb
= +25
o
C
T
min.
T
amb
T
max.
0.15
2
3
mV
DV
io
Input Offset Voltage Drift
V
ic
= 0V, V
o
= 0V, T
min.
T
amb
T
max.
2
V/
o
C
I
io
Input Offset Current (V
ic
= 0V, V
O
= 0V)
T
amb
= +25
o
C
T
min.
T
amb
T
max.
10
150
175
nA
I
ib
Input Bias Current (V
ic
= 0V, V
O
= 0V)
T
amb
= +25
o
C
T
min.
T
amb
T
max.
250
750
800
nA
V
icm
Common Mode Input Voltage Range (
V
IO
= 5mV, V
O
= 0V)
13
14
V
A
vd
Large Signal Voltage Gain (R
L
= 2k
, V
O
=
10V)
T
amb
= +25
o
C
T
min.
T
amb
T
max.
90
85
100
dB
V
opp
Output Voltage Swing (V
id
=
1V)
R
L
= 600
R
L
= 600
R
L
= 2.0k
R
L
= 2.0k
R
L
= 10k
R
L
= 10k
13.2
13.5
12.2
-12.7
14
-14.2
14.3
-14.6
-13.2
-14
V
CMR
Common Mode Rejection Ratio (V
ic
=
13V)
80
100
dB
SVR
Supply Voltage Rejection Ratio
V
CC
+
/ V
CC
-
= +15V / -15V to +5V / -5V
80
105
dB
I
o
Output Short Circuit Current (V
id
=
1V, Output to Ground)
Source
Sink
15
20
29
37
mA
I
CC
Supply current (V
O
= 0V, All Amplifiers)
T
amb
= +25
o
C
T
min.
T
amb
T
max.
4
5
5.5
mA
SR
Slew Rate
V
i
= -10V to +10V, R
L
= 2k
, C
L
= 100pF, A
V
= +1
5
7
V/
s
GBP
Gain Bandwidth Product (f = 100kHz, R
L
= 2k
, C
L
= 100pF)
10
15
MHz
B
Unity Gain Bandwidth (Open loop)
9
MHz
A
m
Gain Margin (R
L
= 2k
)
C
L
= 0pF
C
L
= 100pF
-11
-6
dB
m
Phase Margin (R
L
= 2k
)
C
L
= 0pF
C
L
= 100pF
55
30
Degrees
e
n
Equivalent Input Noise Voltage (R
S
= 100
, f = 1kHz)
4.5
nV

Hz
i
n
Equivalent Input Noise current (f = 1kHz)
0.5
pA

Hz
THD
Total Harmonic Distortion
R
L
= 2k
, f = 20Hz to 20kHz, V
O
= 3V
rms
, A
V
= +1
0.002
%
V
O1
/V
O2
Channel Separation (f = 20Hz to 20kHz)
120
dB
FPB
Full Power Bandwidth (V
O
= 27V
pp
, R
L
= 2k
, THD
1%)
120
kHz
Z
o
Output Impedance (V
O
= 0V, f = 9MHz)
37
R
i
Input Resistance (V
ic
= 0V)
175
k
C
i
Input Capacitance (V
ic
= 0V)
12
pF
MC33078
3/9
0
10
20
30
0
1
2
3
4
5
Supply Voltage (V)
Total
Supply
Current
(mA)
TOTAL SUPPLY CURRENT vs SUPPLY
VOLTAGE
0
10
20
30
-40
-20
0
20
40
60
Output Voltage (V)
Output
Short
Circuit
Current
(mA)
Vcc=0/30V
Tamb.=25
C
OUTPUT SHORT CIRCUIT CURRENT vs
OUTPUT VOLTAGE
0
5
10
15
-15
-10
-5
0
5
10
15
Supply Voltage (V)
Output
Voltage
(V)
Vid=
1V
RL=600ohms
OUTPUT VOLTAGE vs SUPPLY VOLTAGE
0
5
10
15
-15
-10
-5
0
5
10
15
Supply Voltage (V)
Output
Voltage
(V)
Vid=
1V
RL=2kohms
OUTPUT VOLTAGE vs SUPPLY VOLTAGE
0,01
0,1
1
10
100
1
3
5
7
9
11
(nV/SQR(Hz))
Frequency (kHz)
Equivalent
Input
Noise
Voltage
Vcc=
15V G=100
Rs=100 Tamb.=25
C
EQUIVALENT INPUT NOISE VOLTAGE vs
FREQUENCY
0,01
0,1
1
10
100
0,0001
0,001
0,01
0,1
1
Frequency (kHz)
THD+Noise
(%)
RL=2kohms Vo=3Vrms
Vcc=
15V Av=1
THD + NOISE vs FREQUENCY
MC33078
4/9
10
100
1000
10000
100000
-40
-20
0
20
40
60
-120
-60
0
60
120
180
Frequency (kHz)
Gain
(dB)
Phase
(Deg)
RL=2kohms CL=100pF
Vcc=
15V G=-100
phase
gain
VOLTAGE GAIN AND PHASE vs FREQUENCY
1
2
3
4
5
6
7
8
9
10
0,001
0,010
0,100
1,000
Vout (Vrms)
THD+Noise
(%)
RL=2kohms F=1kHz
Vcc=
15V Av= 10
THD + NOISE vs Vout
MC33078
5/9