n 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.
n Features
• Phase compensation circuit
• High voltage gain:GV=100dB typ.
• Low noise:Vni=0.9µ Vrms typ.
• High slew rate:SR=6V/µ s typ.
• High output current:IO=25mA typ.
AN6557, AN6558, AN6558S
Dual Low Noise, High Slew Rate Operational Amplifiers
n Block Diagram
Unit:mmAN6557
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:mmAN6558S
8-pin PANAFLAT Plastic Package (SO-8D) (SOP008-P-0255A)
+– + –
VCC VO1 VCCVO2Vin1
+
VEE
1
1
2
2
345 6 879
Vin1
–
Vin2
–
Vin2
+
(GND)
AN6557
VCC
VO2
VEE
(GND)
1
2
3
4
8
7
6
5
Vin1
–
VO1
Vin1
+
Vin2
–
Vin2
+
–
+
–
+
1
2
AN6558
AN6558S