INTRODUCTION
The S1A2221A02 is a monolithic integrated circuit consisting of a 2-channel pre-amplifier in a 8-pin plastic single in line package. The minimum operating voltage is 2.5V, Making it suitable for low voltage application.

FEATURES
• Wide operating supply voltage: VDD = 2. 5V - 6V
• Low noise (VHI = 1.0mV: Typ)
• High channel separation
• Good ripple rejection ratio
• Minimum number of external parts required