Perancangan Penguat Operasional OTA (Operational Thansconductance) Menggunakan CMOS TeknologiAMS 0,35

Abstract

In this paper elaborates on the design of OTA Operational Amplifiers (Operational transconductance) or transconductance op-amps are designed with CMOS components with the correct specification for ADC applications with capacitive loads, with a large input impedance and minimize noise, to be applied to pipeline ADC . The method used in this design is by manual calculations based on the desired specifications. From the results simulated with CAD mentor graphics technology with the size of AMS (Austria Micro Systems) 0.35 urn CMOS, then the simulation results in the analysis if there is a difference with both theories be revised manually count and simulation circuit.. The result is getting a design op-amp OTA with strengthening the op-amp is a combination of differential strengthening and strengthening of the output. Thus, strengthening total (Ao) is: differential strengthening (A4) and strengthening of the output (A8), Ao = A4/18, Ao= 58,2898 WV, 20 log Ao = 35,3119dB.