In this paper, DTMOS based recycling folded cascode with controlled positive feedback operational transconductance amplifier is introduced. The proposed Positive Feedback Recycling Folded Cascode Operational Transconductance Amplifier (PFRFC OTA) employs positive feedback which enhances and controls the dc gain of PFRFC OTA by adjusting current in feedback. The proposed PFRFC OTA also utilizes the high swing cascode current mirror (HSCCM) as active load which provides high output impedance at low power supply requirements. Moreover, the adaptive biasing is provided by using cross-coupled flipped voltage followers to the differential pair which results in remarkable improvement in gain, unity gain bandwidth and slew rate. The flipped voltage followers are also utilized to reuse the input current to drive the transistors which are connected in feedback with HSCCM. The proposed PFRFC OTA employs PMOS DTMOS transistors at the input stage which utilizes the body effect to enhance the performance of the proposed amplifier. The proposed PFRFC OTA with the second stage is also implemented to further improve the frequency response of the proposed circuit. Mentor Graphics Eldo tool with CMOS technology of 0.18 μm is used for the simulation of the proposed circuits at supply voltage of ±0.5 V. The simulation result of the proposed PFRFC OTA provides gain of 90 dB and a power consumption of 42 μW. The proposed two stage PFRFC OTA provides gain of 114.56 dB. To validate the efficiency of the proposed two stage PFRFC OTA, a tunable biquad filter is also implemented.