±0.15 V three‐stage bulk‐driven AB OTA with 36 MHzpF/µW and 55(V/µs)pF/µW small and large‐signal figures of merit

Abstract

Abstract A three‐stage rail‐to‐rail bulk‐driven class AB OTA that operates with ±0.15 V supplies and a power dissipation of 90 nW is introduced. The first two stages use resistive local common mode feedback. The OTA uses simple phase lead compensation. It has a 36 MHz.pF/μW small signal figure of merit and a 55(V/μs) pF/μW large signal figure of merit.

Keywords

• CMOS analogue integrated circuits
• CMOS integrated circuits
• operational amplifiers