120nm CMOS operational amplifier with high gain down to ±0.3V supply

Analog Filters in Nanometer CMOS

“…three-stage fully dierential operational amplier in 0.12 µm digital CMOS is described in[SDZ03]. The supply voltage ranges from ±0.3 V to ±0.6 V. The opamp has a gain of 86 dB at a supply voltage of ±0.6 V and a current consumption of 1.8 mA.…”