A Novel DC-Coupled, Single-Ended to Differential, Transimpedance Amplifier Architecture Based on gm-boosting Technique

Abstract

In this paper, the authors present a new DC-coupled single-ended to differential method suitable for transimpedance amplifier in low-voltage optical communication system applications. The single-ended to differential operation is realized using gm-boosting technique. As an example for applying this method, gm-boosting technique is implemented by capacitor cross coupling of two basic common-gate stage. Also a method for achieving DC-coupled operation, despite capacitor coupling, is presented and discussed.