Page 1
AN6555, AN6556, AN6556S
Low Noise Dual Operational Amplifiers
■ Overview
The AN6555, the AN6556, and the AN6556S are low
noise, high slew rate dual operational amplifiers with
phase compensation circuits built-in.
They are suitable for applications to various electronic
circuits such as active filters and audio preamplifiers.
■ Features
• Phase compensation circuit
• High voltage gain:Gv=100 dB typ.
• Low noise:input referred noise voltage Vni=1.5µVrms
typ.
• High slew rate:SR=2V/µs typ.
• Output short-circuit protection
2.4±0.25
6.0±0.3
9
8
7
6
23.3±0.3
5
4
3
2
1
9-pin SIL Plastic Package (SIP009-P-0000)
AN6556
1
2
3
9.4±0.3
4
±0.3
6.3
3.3±0.25
0.3
8
7
6
5
1.5±0.25
0.5±0.1
1.5±0.25
+0.1
– 0.05
3.0±0.3
3.8±0.25 (3.45)
2.54
1.4±0.3
0.51min.
Unit:mmAN6555
30˚
Unit:mm
0.5±0.1
1.2±0.25
2.54
■ Block Diagram
AN6555
11223456 879
V
V
O1
CC
AN6556
AN6556S
V
O1
–
V
in1
+
V
in1
V
EE
(GND)
+
–
–
V
V
in1
1
2
–
1
+
3
4
in1
+
V
(GND)
+0.1
– 0.05
4.2±0.3
6.5±0.3
0.15
Unit:mmAN6556S
8
7
6
5
0.15
5.0±0.3
1.5±0.2
0.65
7.62±0.25
3
—
15˚
8-pin DIL Plastic Package (DIP008-P-0300B)
+
–
–
+
V
V
EE
in2
in2
V
V
CC
O2
0.4±0.25
1
0.6±0.31.27
2
3
V
8
CC
7
V
O2
–
V
6
–
in2
4
0.1±0.1
0.3
2
+
+
V
5
in2
8-pin PANAFLAT Plastic Package (SOP008-P-0225A)
Page 2
■ Pin Descriptions
〈AN6555〉
Pin No.
1
2
3
4
5
6
7
8
9
Pin name
V
CC
Ch.1 output
Ch.1 inverting input
Ch.1 non inverting input
(GND)
V
EE
Ch.2 non inverting input
Ch.2 inverting input
Ch.2 output
V
CC
〈AN6556, AN6556S〉
■ Absolute Maximum Ratings (Ta=25˚C)
Parameter Symbol Rating Unit
Supply voltage
Voltage
Power dissipation
Operating ambient temperature
Storage temperature
Differential input voltage
Common-mode input voltage
AN6555, AN6556
AN6556S
AN6555, AN6556
AN6556S
Pin No.
1
Ch.1 output
2
Ch.1 inverting input
3
Ch.1 non inverting input
(GND)
4
V
EE
Ch.2 non inverting input
5
Ch.2 inverting input
6
Ch.2 output
7
V
8
CC
V
CC
V
ID
V
ICM
P
D
T
opr
T
stg
Pin name
±18
±30
±15
500
360
–20 to +75
–55 to +150
–55 to +125
V
V
V
mW
˚C
˚C
■ Electrical Characteristics (VCC=15V, VEE=–15V, Ta=25˚C)
Parameter Symbol Condition min typ max
Input offset voltage
Input offset current
Input bias current
Voltage gain
Maximum output voltage
Common-mode input voltage width
Common-mode rejection ratio
Supply voltage rejection ratio
Power consumption
Slew rate
Equivalent input noise voltage
V
I (offset)
I
IO
I
Bias
V
V
O (max.)
CM
SVR µV/V30
P
C
SR V/µs2
V
ni
<
10kΩ
R
S
=
>
2kΩ, VO=±10V
R
L
=
>
R
10kΩ
L
=
>
R
2kΩ
L
=
= ∞
R
L
>
R
2kΩ
L
=
=1kΩ, DIN/AUDIO
R
S
86G
100
±12
±10 V±13
±12V
70CMR dB90
Unit
6mV0.5
200 nA5
500 nA
dB
V±14
V±14
150
170 mW90
µVrms1.5
Page 3
■ Characteristics Curve
160
140
120
(dB)
V
100
80
60
Voltage Gain G
40
20
0
1 10 100 1k 10k
40
35
(V)
30
O (max.)
25
20
15
GV–f
V
CC
=–15V
V
EE
Ta=25˚C
V
O (max.)
100k 1M 10M 100M
– f
V
CC
V
EE
=2kΩ
R
L
Frequency f (Hz)
=15V
=15V
=–15V
30
(V)
25
O (max.)
20
15
10
5
=15V
V
CC
=–15V
V
EE
Ta=25˚C
V
O (max.)
– R
Maximum Output Voltage V
0
10 100 1k 10k 100k
Load Resistance RL (Ω)
VCM–V
CC
(V)
CM
20
15
10
5
0
–5
V
L
200
100
(nV/ Hz)
ni
50
30
20
10
5
3
Equivalent Input Noise Voltage V
0 10 100 1k 10k
ni
– f
VCC=15V
=–15V
V
EE
Ta=25˚C
Frequency f (Hz)
V
O (max.) –VCC
(V)
O (max.)
20
15
10
5
0
–5
10
5
Maximum Output Voltage V
0
0
10
100
1k
10k
Frequency f (Hz) Supply Voltage VCC (V)
VO – t
12
10
(V)
8
O
6
4
Output Voltage V
2
0
0 102030405060
Time t (µs)
100k
–10
–15
Common-Mode Input Voltage V
–20
1M
0246810121416
5
4
(mA)
CC
3
2
Supply Current I
1
0
–20
0
Ambient Temperature Ta (˚C)
ICC–Ta
20
40
=15V
V
CC
=–15V
V
EE
Ta=25˚C
60
–10
–15
Maximum Output Voltage V
–20
0246810121416
Supply Voltage VCC (V)
80
100
Page 4
■ Applica tion Circuit
–
Input
3.3µF
15V
+
100µF
–
2.2kΩ
+
56kΩ
47µF
+
OP. Amp.
–
–15V
30kΩ
0.0024µF 0.0082µF
+
–
610Ω
100µF
330kΩ
0.47µF
+–
2.2µF
–
+
220kΩ
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