论文信息 - Analog Design Considerations For Independently Driven Double Gate MOSfets And Their Application in a Low-Voltage OTA

Analog Design Considerations For Independently Driven Double Gate MOSfets And Their Application in a Low-Voltage OTA

This paper explores new capabilities brought on by Independently Driven Double Gate CMOS transistors (IDGMOS) for analog baseband design. Since the gates are disconnected, the corresponding channels are coupled resulting in a dynamic threshold voltage tuning. This operation mode is exploited to create new analog functions and low-voltage circuits. A current mirror is redesigned using IDGMOS and it is shown that this structure performs an efficient differential function relating to the potentials applied to the back gates. Being adapted to low-voltage operation and self compensated from input common-mode variations, the differential current mirror is employed for the active loading of a low-voltage fully- balanced OTA. It then improves the limited common-mode rejection of the original OTA structure by providing output feed-back and input feed-forward compensation.

H. Lapuyade | G. Billiot | P. Freitas | J.B. Begueret

[1] K. Itoh,et al. Impact of FD-SOI on Deep-Sub-100-nm CMOS LSIs -A View of Memory Designers- , 2006, 2006 IEEE international SOI Conferencee Proceedings.

[2] Dimitri A. Antoniadis,et al. Back-gated CMOS on SOIAS for dynamic threshold voltage control , 1997 .

[3] G. Billiot,et al. Analog circuit design based on independently driven double gate MOSfet , 2007, 2007 Ph.D Research in Microelectronics and Electronics Conference.

[4] Jalal Jomaah,et al. Explicit Threshold Voltage Based Compact Model of Independent Double Gate MOSFET , 2006 .

[5] P. Kinget,et al. 0.5-V analog circuit techniques and their application in OTA and filter design , 2005, IEEE Journal of Solid-State Circuits.

[6] Edgar Sanchez-Sinencio,et al. A fully balanced pseudo-differential OTA with common-mode feedforward and inherent common-mode feedback detector , 2003, IEEE J. Solid State Circuits.