MC33078
Low noise dual operational amplifier
Datasheet
−
production data
Features
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■
■
■
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Low voltage noise: 4.5 nV/√Hz
High gain bandwidth product: 15 MHz
High slew rate: 7 V/µs
Low distortion: 0.002%
Large output voltage swing: +14.3 V / -14.6 V
Low input offset voltage
Excellent frequency stability
ESD protection 2 kV
Macromodel included in this specification
D
SO-8
(plastic micropackage)
N
DIP8
(plastic package)
Description
The MC33078 device is a monolithic dual
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/µs slew rate).
In addition, the MC33078 device 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)
VCC+
Output 1
Inverting input 1
Non-inverting input 1
1
2
3
-
+
-
+
8
7
6
5
Output 2
Inverting input 2
Non-inverting input 2
-
4
V
CC
November 2012
This is information on a product in full production.
Doc ID 2177 Rev 6
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15
Absolute maximum ratings and operating conditions
MC33078
1
Absolute maximum ratings and operating conditions
Table 1.
Symbol
V
CC
V
id
V
i
Supply voltage
Differential input voltage
(1)
Input voltage
(1)
Output short-circuit duration
T
j
T
stg
R
thja
Junction temperature
Storage temperature
Thermal resistance junction-to-ambient
(2)
,
(3)
SO-8
DIP8
Thermal resistance junction-to-case
(2)
,
(3)
SO-8
DIP8
HBM: human body model
(4)
ESD
MM: machine model
(5)
CDM: charged device model
(6)
1. Either or both input voltages must not exceed the magnitude of V
CC +
or V
CC-
.
2. Short-circuits can cause excessive heating and destructive dissipation.
3. R
th
are typical values.
4. Human body model: A 100 pF capacitor is charged to the specified voltage, then discharged through
a 1.5 kΩ resistor between two pins of the device. This is done for all couples of connected pin combinations
while the other pins are floating.
5. Machine model: A 200 pF capacitor is charged to the specified voltage, then discharged directly between
two pins of the device with no external series resistor (internal resistor < 5
Ω).
This is done for all couples of
connected pin combinations while the other pins are floating.
6. Charged device model: all pins and the package are charged together to the specified voltage and then
discharged directly to ground through only one pin. This is done for all pins.
Absolute maximum ratings (AMR)
Parameter
Value
±18 or +36
±30
±15
Infinite
+150
-65 to +150
125
85
40
41
2
200
1.5
Unit
V
V
V
s
°C
°C
°C/W
R
thjc
°C/W
kV
V
kV
Table 2.
Symbol
V
CC
T
oper
Operating conditions
Parameter
Supply voltage
Operating free air temperature range
Value
±2.5 to ±15
-40 to 125
Unit
V
°C
2/15
Doc ID 2177 Rev 6
MC33078
Schematic diagram
2
Figure 1.
Schematic diagram
Schematic diagram (1/2 MC33078)
V
CC
Output
Inverting
Input
Non-inverting
Input
V
CC
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Electrical characteristics
MC33078
3
Table 3.
Symbol
V
io
ΔV
io
I
io
I
ib
V
icm
A
vd
Electrical characteristics
V
CC+
= +15 V, V
CC-
= -15 V, T
amb
= 25 °C (unless otherwise specified)
Parameter
Input offset voltage (V
o
= 0 V, V
ic
= 0 V)
T
min
≤
T
amb
≤
T
max
Input offset voltage drift
V
o
= 0 V, V
ic
= 0 V, T
min
≤
T
amb
≤
T
max
Min.
Typ.
0.15
Max.
2
3
Unit
mV
µV/°C
150
175
750
800
nA
nA
V
dB
2
10
250
±13
90
85
±14
100
Input offset current (V
o
= 0 V, V
ic
= 0 V)
T
min
≤
T
amb
≤
T
max
Input bias current (V
o
= 0 V, V
ic
= 0 V)
T
min
≤
T
amb
≤
T
max
Input common mode voltage range (ΔV
io
= 5 mV, V
o
= 0 V)
Large signal voltage gain (R
L
= 2 kΩ V
o
= ±10 V)
,
T
min
≤
T
amb
≤
T
max
Output voltage swing (V
id
= ±1 V)
R
L
= 600
Ω
R
L
= 600
Ω
R
L
= 2.0 kΩ
R
L
= 2.0 kΩ
R
L
= 10 kΩ
R
L
= 10 kΩ
Common mode rejection ratio (V
ic
= ±13 V)
Supply voltage rejection ratio
V
CC+
/ V
CC-
= +15 V / -15 V to +5 V / -5 V
Output short-circuit current (V
id
= ±1 V, output to ground)
Source
Sink
Supply current (V
o
= 0 V, all amplifiers)
T
min
≤
T
amb
≤
T
max
Slew rate
,
V
i
= -10 V to +10 V, R
L
= 2 kΩ C
L
= 100 pF, A
V
= +1
Gain bandwidth product
R
L
= 2 kΩ C
L
= 100 pF, f = 100 kHz
,
Unity gain bandwidth (open loop)
Gain margin (R
L
= 2 kΩ), C
L
= 0 pF
C
L
= 100 pF
Phase margin (R
L
= 2 kΩ), C
L
= 0 pF
C
L
= 100 pF
Equivalent input noise voltage
R
S
= 100
Ω
f = 1 kHz
,
Equivalent input noise current (f = 1 kHz)
5
10
±V
opp
13.2
13.5
80
80
12.2
-12.7
14
-14.2
14.3
-14.6
100
105
V
-13.2
-14
dB
dB
CMR
SVR
I
o
15
20
29
37
4
5
5.5
mA
I
CC
SR
GBP
B
A
m
φm
e
n
i
n
mA
V/µs
MHz
MHz
dB
Degrees
nV/
√
Hz
pA/
√
Hz
7
15
9
-11
-6
55
30
4.5
0.5
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Doc ID 2177 Rev 6
MC33078
Table 3.
Symbol
THD
V
O1
/V
O2
FPB
Z
o
R
i
C
i
Electrical characteristics
V
CC+
= +15 V, V
CC-
= -15 V, T
amb
= 25 °C (unless otherwise specified) (continued)
Parameter
Total harmonic distortion
R
L
= 2 kΩ f = 20 Hz to 20 kHz, V
o
= 3 V
rms
, A
V
= +1
,
Channel separation
f = 20 Hz to 20 kHz
Full power bandwidth
V
o
= 27 V
pp
, R
L
= 2 kΩ THD
≤
1%
,
Output impedance
V
o
= 0 V, f = 9 MHz
Input resistance
V
ic
= 0 V
Input capacitance
V
ic
= 0 V
Min.
Typ.
0.002
120
120
37
175
12
Max.
Unit
%
dB
kHz
Ω
kΩ
pF
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