Design of Low Transconductance Voltage to Current Converter in CMOS

For biomedical applications low power and low transconductance linear transconductor is required. In this paper a low transconductance and high gain transconductance is designed based on based on gate driven input stage for basic Miller OTA. The circuit is then modified to achieve very low transconductance using series parallel PMOS differential current pair technique. The circuits are designed in gpdk 180nm CMOS technology.