RF Transconductor Linearization Technique Robust to Process, Voltage and Temperature Variations

被引：0
|
作者：
Subramaniyan, Harish Kundur [1 ]
Klumperink, Eric A. M. [1 ]
Nauta, Bram [1 ]
Venkatesh, Srinivasan [2 ]
Kiaei, Ali [3 ]
机构：
[1] Univ Twente, IC Design Grp, Enschede, Netherlands
[2] Texas Instruments Inc, Dallas, TX USA
[3] Texas Instruments Inc, Santa Clara, CA USA
来源：
2014 IEEE ASIAN SOLID-STATE CIRCUITS CONFERENCE (A-SSCC) | 2014年
关键词：
CMOS; Software-defined Radio; Receiver; Linearity; Transconductor; Transconductor Figure-of-Merit; PVT; robust circuit design;
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 new reconfigurable linearized low noise transconductance amplifier (LNTA) design for a software-defined radio receiver is presented. The transconductor design aims at realizing high linearity at RF in a way that is robust for Process, Voltage and Temperature variations. It exploits resistive degeneration in combination with a floating battery by-pass circuit and replica biasing to improve IIP3 in a robust way. The LNTA with current domain mixer is implemented in a 45nm CMOS process. Compared to an inverter based LNTA with the same transconductance, it improves PIIP3 from 2 dBm to a robust PIIP3 of 8 dBm at the cost of 67% increase in power consumption.
引用
收藏
页码：333 / 336
页数：4
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