s Overview
The AN6557, the AN6558, and the AN6558S are low
noise, high slew rate dual operational amplifiers with
phase compensation circuits built-in. They are suitable
for application to various electronic circuits such as ac-
tive filters and audio preamplifiers. Moreover, they are
high output current type and can also be used as head-
phone amplifiers.
s Features
Phase compensation circuit
High voltage gain:G
V
=100dB typ.
Low noise:V
ni
=0.9
Vrms typ.
High slew rate:SR=6V/
s typ.
High output current:I
O
=25mA typ.
AN6557, AN6558, AN6558S
Dual Low Noise, High Slew Rate Operational Amplifiers
s Block Diagram
Unit:mm
AN6557
21.7
0.3
9
8
7
6
5
4
3
2
1
2.54
1.2
0.25
0.4
0.25
0.5
0.1
2.7
0.25
4.3
0.3
0.3
1.0
0.25
1.4
0.25
1.35
0.25
+ 0.1
0.05
9-pin SIL Plastic Package (Slim) (SIP009-P-0000A)
Unit:mm
1
2
3
4
6.3
0.3
3.8
0.25 (3.45)
2.54
1.2
0.25
0.5
0.1
7.62
0.25
3--15
0.15
+ 0.1
0.05
AN6558
9.4
0.3
0.51min.
8
7
6
5
8-pin DIL Plastic Package (DIP008-P-0300B)
1
2
3
4
0.4
0.25
0.6
0.3
1.27
0.1
0.1
0.3
0.15
0.65
1.5
0.2
5.0
0.3
4.2
0.3
6.5
0.3
8
7
6
5
Unit:mm
AN6558S
8-pin PANAFLAT Plastic Package (SO-8D) (SOP008-P-0255A)
+
+
V
CC
V
O1
V
CC
V
O2
V
in1
+
V
EE
1
1
2
2
3
4
5
6
8
7
9
V
in1
V
in2
V
in2
+
(GND)
AN6557
V
CC
V
O2
V
EE
(GND)
1
2
3
4
8
7
6
5
V
in1
V
O1
V
in1
+
V
in2
V
in2
+
+
+
1
2
AN6558
AN6558S
s Pin Descriptions
AN6557
Pin No.
Pin name
1
2
3
4
5
6
7
8
9
V
CC
Ch. 1 output
Ch. 1 inverting input
Ch. 1 non inverting input
V
EE
(GND)
Ch. 2 non inverting input
Ch. 2 inverting input
Ch. 2 output
V
CC
AN6558, AN6558S
Pin No.
Pin name
1
2
3
4
5
6
7
8
Ch. 1 output
Ch. 1 inverting input
Ch. 1 non inverting input
V
EE
(GND)
Ch. 2 non inverting input
Ch. 2 inverting input
Ch. 2 output
V
CC
V
CC
V
ID
V
ICM
P
D
T
opr
T
stg
V
V
V
mW
C
C
Parameter
Symbol
Rating
Unit
s Absolute Maximum Ratings (Ta=25C)
18
30
15
500
360
20 to +75
55 to +150
55 to +125
Voltage
Power dissipation
Operating ambient temperature
Storage temperature
Supply voltage
Differential input voltage
Common-mode input voltage
AN6557, AN6558
AN6558S
AN6557, AN6558
AN6558S
Parameter
Symbol
Condition
min
typ
max
s Electrical Characteristics (V
CC
=15V, V
EE
=15V, Ta=25C)
Input offset voltage
V
I (offset)
3
mV
0.3
R
S
10k
Input offset current
I
IO
200
nA
10
Input bias current
I
Bias
2000
nA
Voltage gain
86
G
V
dB
R
L
2k
, V
O
=
10V
Maximum output voltage
12
V
O (max.)
V
14
10
V
12
Common-mode input voltage width
12
V
CM
V
14
100
Common-mode rejection ratio
70
CMR
dB
100
Supply voltage rejection ratio
SVR
V/V
10
Power consumption
P
C
240
mW
R
L
=
Slew rate
Equivalent input noise voltage
SR
V/
s
R
L
2k
150
1300
6
150
V
ni
Vrms
0.9
R
S
=1k
, DIN/AUDIO
Unit
R
L
10k
I
O
=25mA
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