Improved Common-Mode Feedback based on LCMFB Techniques

被引：0
|
作者：
Pilar Garde, M. [1 ]
Lopez-Martin, Antonio [1 ]
Ramirez-Angulo, Jaime [2 ]
机构：
[1] Univ Publ Navarra, Inst Smart Cities, Pamplona, Spain
[2] New Mexico State Univ, Klipsch Sch Elect & Comp Engn, Dept 3 0, Box 30001, Las Cruces, NM 88003 USA
来源：
2017 13TH CONFERENCE ON PH.D. RESEARCH IN MICROELECTRONICS AND ELECTRONICS (PRIME) | 2017年
关键词：
Local Common Mode Feedback (LCMFB); Common Mode Feedback (CMFB) circuit; Analog CMOS ICs; low voltage CMOS circuits; Differential Difference Amplifier (DDA); SLEW RATE; CMFB;
D O I：
暂无
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
A novel class AB Differential Difference Amplifier (DDA) for use in continuous-time common-mode feedback circuits is proposed. It is based on using resistive Local Common-Mode Feedback (LCMFB) to enhance gain-bandwidth product (GBW) and dynamic operation of the common-mode feedback loop, without requiring extra static power consumption or supply voltage requirements. Simulation results for a 0.5 mu m CMOS process show an increase in open loop DC gain (ADC) of 15.3 dB and also in GBW by a factor of 5.5. Additionally, measurement results for a test chip prototype fabricated in the same process validate the proposal.
引用
收藏
页码：277 / 280
页数：4
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