■ 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.

■ 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.