Aopac01_3v3 is a general purpose internally compensated CMOS OpAmp with N-MOS input stage and rail-to-rail output stage. The speed, gain bandwidth, and the power consumption of the amplifier are set by means of a bias current. The acscoc02_3v3 current source; resistor to VDDA, or other current sources may be used to set the bias current. The tolerances, voltage and temperature dependence of the bias current also affect the OpAmp performance.