An　energy　efficient　hearing　aid　current　mode　readout　amplifier　using　accuracy　compensation　and　adaptive　bias　current　techniques　is　presented,　for　the　improved　accuracy　with　the　saved　power.　Compared　with　the　conventional　current　mode　amplifiers,　the　amplifier　with　the　techniques　is　characterized　by　the　pole-zero　canceling　feedback　loop　and　the　adaptive　current　mode　feedback　loop.　With　the　techniques,　the　accuracy　and　power　dissipation　can　be　simultaneously　optimized.　Simulated　with　a　0.18　μ　m　CMOS　process,　with　the　typical　0.6V　supply　voltage,　the　signal　to　noise　and　distortion　rate　(SNDR)　achieves　70dB@4μAp-p　output　current.　Moreover,　the　power　consumption　is　maintained　within　27　μ　W.　©　2016　IEEE.