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Электронный компонент: BA4558

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1
Standard ICs
Dual operational amplifier
BA4558 / BA4558F / BA4558N
The BA4558, BA4558F, and BA4558N are monolithic ICs with two operational amplifiers featuring low power con-
sumption and internal phase compensation mounted on a single silicon chip. These products offer high speed, a
wide band width, and low noise.
Outstanding thermal characteristics and voltage gain band width make these ICs ideal for use in a wide variety of
electronic circuits. The BA4558 comes in an 8-pin DIP package and is compatible with the 4558 operational amplifi-
er. The BA4558F comes in an 8-pin SOP package, and the BA4558N in an 8-pin SIP package.
Applications
Active filters
Audio amplifiers
VCOs
Other electronic circuits
Block diagram
1ch
2ch
V
CC
OUT2
IN2
+ IN2
OUT1
IN1
+ IN1
V
EE
4
3
2
1
8
7
5
6
+
1ch
2ch
OUT1
1
IN1
2
+ IN1
3
V
EE
4
+ IN2
5
IN2
6
OUT2
7
V
CC
8
+
+
BA4558 / BA4558F
BA4558N
+
Features
1) Low power dissipation of approximately 50mW
(typ.).
2) Built-in output short-circuit protection circuit.
3) Internal phase compensation.
4) No latch-up.
5) Wide range of common mode and differential volt-
age.
6) High gain and low noise.
2
Standard ICs
BA4558 / BA4558F / BA4558N
Internal circuit configuration
V
CC
IN
+ IN
V
EE
R
1
R
9
R
8
R
7
R
6
R
5
R
4
R
3
R
2
Q
5
Q
13
Q
15
Q
11
Q
12
Q
14
Q
8
Q
9
Q
10
Q
6
Q
4
Q
3
Q
2
Q
1
Q
7
OUT
D
Absolute maximum ratings (Ta = 25C)
Parameter
Symbol
Limits
Unit
BA4558
BA4558F
BA4558N
Power supply voltage
V
CC
18
18
18
V
Power dissipation
800
550
900
mW
Differential input voltage
V
ID
30
30
30
V
Common-mode input voltage
V
I
15
15
15
V
Operating temperature
Topr
40 ~ + 85
40 ~ + 85
40 ~ + 85
C
Storage temperature
55 ~ + 125 55 ~ + 125 55 ~ + 125
C
Pd
Tstg
Refer to Pd characteristics diagram.
The values for the BA4558F are those when it is mounted on a glass epoxy board ( 50mm
50mm
1.6mm) .
3
Standard ICs
BA4558 / BA4558F / BA4558N
Electrical characteristics (unless otherwise noted, Ta = 25C, V
CC
= + 15V, V
EE
= 15V)
Parameter
Symbol
Typ.
Max.
Unit
Input offset voltage
V
IO
--
0.5
6.0
mV
R
S
10k
Input offset current
I
IO
--
5
200
nA
Input bias current
I
B
--
60
500
nA
High-amplitude voltage gain
A
V
86
100
--
dB
Common-mode input voltage
V
ICM
12
14
--
V
Maximum output voltage
V
OH
12
14
--
V
R
L
10k
Minimum output voltage
V
OL
10
13
--
V
R
L
2k
Common-mode rejection ratio
CMRR
70
90
--
dB
R
S
10k
Power supply voltage rejection ratio
PSRR
--
30
150
V / V
R
S
10k
Slew rate
S.R.
--
1.0
--
V /
s
Channel separation
CS
--
105
--
dB
f = 1kHz
Conditions
Min.
R
L
2k
, V
O
=
10V
A
V
= 1, R
L
2k
Electrical characteristic curves
Fig.1 Power dissipation vs. ambient
temperature
AMBIENT TEMPERATURE: Ta (
C)
POWER DISSIPATION: Pd (mW)
1200
1000
800
600
400
200
0
0
25
50
75 85 100
125
150
BA4558N
BA4558F
BA4558
4
5
3
2
0
10
20
POWER SUPPLY VOLTAGE: V
(V)
QUIESCENT CURRENT: I
Q (
mA)
Fig.2 Quiescent current vs. power
supply voltage
1M
10M
120
100
80
60
40
20
0
1
10
100
1k
10k
100k
FREQUENCY: f (Hz)
OPEN LOOP GAIN: A
V (
dB)
Fig.3 Open loop voltage gain vs.
frequency
32
28
24
20
16
12
8
4
0
100
1k
10k
100k
1M
FREQUENCY: f (Hz)
MAXIMUM OUTPUT VOLTAGE: V
OM
(V)
Fig.4 Maximum output voltage vs.
frequency
100
80
60
40
20
0
20
40
60
80
AMBIENT TEMPERATURE: Ta (
C)
INPUT BIAS CURRENT: I
B
(mA)
Fig.5 Input bias current vs. ambient
temperature
100
75
50
25
0
10
20
30
40
POWER SUPPLY VOLTAGE: V
+
(V)
INPUT BIAS CURRENT: I
B
(nA)
Fig.6 Input bias current vs. power
supply voltage
4
Standard ICs
BA4558 / BA4558F / BA4558N
+ 5
0
5
5
0
5
0
20
40
60
80
TIME (
s)
INPUT VOLTAGE OUTPUT VOLTAGE
V
IN
(V) V
OUT
(V)
Fig.7 Output response characteristics
20
10
0
10
20
0
10
20
COMMON MODE INPUT VOLTAGE: V
ICM
(V)
POWER SUPPLY VOLTAGE: V
(V)
Fig.8 Common mode input voltage vs.
power supply voltage
Operation notes
(1) Unused circuit connections
If there are any circuits which are not being used, we
recommend making connections as shown in Figure 9,
with the non-inverted input pin connected to the poten-
tial within the in-phase input voltage range (V
ICM
).
V
CC
V
EE
To potential
in V
ICM
+
Fig.9 Unused circuit connections
5
Standard ICs
BA4558 / BA4558F / BA4558N
External dimensions (Units: mm)
BA4558
BA4558F
BA4558N
DIP8
SOP8
SIP8
0.5
0.1
3.2
0.2
3.4
0.3
8
5
1
4
9.3
0.3
6.5
0.3
0.3
0.1
0.51Min.
2.54
0
~ 15
7.62
0.4
0.1
1.27
0.15
0.3Min.
0.15
0.1
0.11
6.2
0.3
4.4
0.2
5.0
0.2
8
5
4
1
1.5
0.1
10.5
0.5
1
8
2.54
3.5
0.5
1.3
0.8
0.6
0.3
0.1
2.8
0.2
19.3
0.2
1.2
5.8
0.2