A Low Voltage and Low Power OTA Using Bulk-Driven Technique and its Application in Gm-C Filter

摘要

A low voltage low power operational transconductance amplifier circuit using a bulk-driven technique is presented in this paper. The proposed realization powered at ±0.6 V shows a wide linear input range, very low Gm value (5.33 μA/V) and high open loop gain of 54 dB with transition frequency at 4 MHz. Based on this circuit, the second Gm-C filter is designed. The simulation results of this filter are in a good accuracy with the theoretical calculations. All simulations are performed by Cadence technology Tower Jazz 0.18 μm TS18SL.