A Linear Transconductance Amplifier with Differential-Mode Bandwidth Extension and Common-Mode Compensation

被引：0
|
作者：
Kong, Derui [1 ]
Lee, Sang Min [1 ]
Taleie, Shahin Mehdizad [1 ]
McGowan, Michael Joseph [1 ]
Seo, Dongwon [1 ]
机构：
[1] Qualcomm Technol Inc, San Diego, CA USA
来源：
2015 IEEE CUSTOM INTEGRATED CIRCUITS CONFERENCE (CICC) | 2015年
关键词：
CMOS; DAC; negative capacitance; negative resistance; R-2R; transconductance; FILTER;
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 transconductance amplifier with extended bandwidth, which is a critical block in various applications including amplifiers, filters and DACs, is presented. The presented technique introduces a differential-mode negative capacitance while introduces the common-mode positive capacitance such that it extends the differential-mode bandwidth and compensates the common-mode stability. The proposed transconductance amplifier has been implemented for a DAC in CMOS 20nm to improve the distortion performance as a negative transconductance circuit, but the proposed technique is applicable to the wide range of circuits with a transconductor.
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页数：4
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