I am creating a differential amplifier that deals with inputs ranging from 0-50mV. I have been using an LM324N, but when I get to <100mV, the noise interferes too much (I have decoupling caps and have terminated the unused opamps). I need a high precision opamp that can deal with <100mV, but have not dealt with them before. Is OPA277P an acceptable opamp that will fit my spec? I am providing +-15V to +-Vcc.