A novel ultra-low voltage and low power OTA with common-mode feed-forward

CMOS pseudo differential operational transconductance amplifier (OTA) has been proposed in this study. It can operate with significantly low supply voltage and provides respectable high output impedance. Besides, it enhances the common mode rejection ratio (CMRR) by using a special common mode feed forward (CMFF) technology. The chip has been manufactured in a 0.35 µm-CMOS technology. The simulation result shows that CMRR is 79.6dB and has 57.7dB open loop gain with 1.1V supply voltage only. The chip area is 0.15×0.1 mm
²
.