Design of high speed two stage op amp with different compensation techniques

Design of high speed two stage op amp with different compensation techniques

Architectures

Spec :1.Vdd: 3V2.CL: 10fF3.UGB: 2.02GHz4.Dc gain: 49.2dB5.PM: 60 deg6.Technology : 180nm1. With current buffer

2.With indirect compensation

Specification Targeted Vdd: 1.8V Technology : 130nmUGB : 1GHz Phase Margin : 60 deg DC gain : 60dBCL : ??Total current : ??Slew Rate : ??Charan this is the spec I have targeted to achieve in two stage op amp with current buffer compensation. For high speed op amp current should be high and slew rate will be highGetting confused on the selection of CL for high speed and the total current