MC33079
Low noise quad operational amplifier
Datasheet
−
production data
Features
■
■
■
■
■
■
■
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
Excellent frequency stability
ESD protection 2 kV
SO-14
(plastic micropackage)
DIP14
(plastic package)
Description
The MC33079 device 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/µs slew rate).
In addition the MC33079 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)
November 2012
This is information on a product in full production.
Doc ID 4468 Rev 5
1/11
www.st.com
11
Schematic diagram (1/4 MC33079)
MC33079
1
Figure 1.
Schematic diagram (1/4 MC33079)
Schematic diagram (1/4 MC33079)
2/11
Doc ID 4468 Rev 5
MC33079
Absolute maximum ratings and operating conditions
2
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)
DIP14
SO-14
Thermal resistance junction-to-case
(2)
,
(3)
DIP14
SO-14
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. Destructive dissipation can result from simultaneous
short-circuits on all amplifiers.
3. R
th
are typical values.
4. Human body model: 100 pF discharged through a 1.5 kΩ 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
Ω),
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 ground.
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
R
thjc
°C/W
kV
V
kV
Table 2.
Symbol
V
CC
T
oper
V
icm
Operating conditions
Parameter
Supply voltage
Operating free air temperature range
Input common mode voltage range (ΔV
io
/ΔT= 5 mV, V
o
= 0 V)
Value
±2.5 to ±15
-40 to 125
±13 to ±14
Unit
V
°C
V
Doc ID 4468 Rev 5
3/11
Electrical characteristics
MC33079
3
Table 3.
Symbol
V
io
ΔV
io
/ΔT
I
io
I
ib
A
vd
Electrical characteristics
Electrical characteristics at 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
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
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
90
85
2
10
250
100
150
175
750
800
Min.
Typ.
Max.
2.5
3.5
Unit
mV
µV/°C
nA
nA
dB
±V
opp
13.2
13.5
80
80
15
20
12.2
-12.7
14
-14.2
14.3
-14.6
100
105
29
37
8
7
15
9
-11
-6
55
30
4.5
0.5
V
-13.2
-14
dB
dB
mA
10
12
CMR
SVR
I
o
I
CC
SR
GBP
B
A
m
mA
V/µs
MHz
MHz
dB
φm
Degrees
e
n
i
n
nV
-----------
-
Hz
pA
-----------
-
Hz
4/11
Doc ID 4468 Rev 5
MC33079
Table 3.
Symbol
THD
Electrical characteristics
Electrical characteristics at V
CC+
= +15 V, V
CC-
= -15 V, T
amb
= 25 °C
(unless otherwise specified) (continued)
Parameter
Min.
Typ.
0.002
120
120
37
175
12
Max.
Unit
%
dB
kHz
Ω
kΩ
pF
,
Total harmonic distortion (R
L
= 2 kΩ f = 20 Hz to 20 kHz, V
o
= 3 V
rms
,
A
V
= +1)
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)
V
O1
/V
O2
Channel separation (f = 20 Hz to 20 kHz)
FPB
Z
o
R
i
C
i
Doc ID 4468 Rev 5
5/11
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