Design of micropower class AB transconductors: A systematic approach

作者：Lopez Martin Antonio J^*; Algueta Jose M; Garcia Alberdi Coro; Acosta Lucia; Carvajal Ramon G; Ramirez Angulo Jaime

来源：Microelectronics Journal, 2013, 44(10): 920-929.

DOI：10.1016/j.mejo.2012.11.003

• Transconductor
• OTA
• Rail-to-rail operation
• Quasi-Floating Gate transconductor
• QFGMOS
• FGMOS
• CCII

A systematic design approach to achieve micropower class AB CMOS transconductors is presented. It includes techniques to get rail-to-rail operation and continuous transconductance tuning, based on floating and Quasi-Floating Gate transistors. Application of the proposed design approach leads to a new family of high-performance power-efficient class AB CMOS transconductors. To illustrate the feasibility of this approach, 12 transconductors derived from this common framework have been designed and fabricated in a 0.5 mu m CMOS technology. Measurement results show THD values for 2 V inputs of -56 dB for a static power of 300 mu W and silicon area %26lt;0.07 mm(2).

• 出版日期2013-10