BUY SA575N https://www.utsource.net/itm/p/394687.html
Compander
The SA575N is a monolithic integrated circuit from Philips Semiconductors. It is a dual low-noise operational amplifier with a wide range of features and applications.
Features:
Low noise: 5nV/√Hz
High slew rate: 1.5V/μs
Low input bias current: 0.5pA
High input impedance: 10TΩ
Low offset voltage: 2mV
High common-mode rejection ratio: 80dB
Low power consumption: 2mA
Applications:
Audio preamplifiers
Active filters
Instrumentation amplifiers
Signal conditioning
Test and measurement equipment
(For reference only)