A precise temperature-insensitive and linear-in-dB variable gain amplifier

被引：0
|
作者：
Beck, SH [1 ]
Hwang, MW [1 ]
Lee, SH [1 ]
Cho, GH [1 ]
Lee, JR [1 ]
机构：
[1] Future Commun IC Inc, Sungnam, Kyunggi Do, South Korea
来源：
PROCEEDINGS OF THE 2003 IEEE INTERNATIONAL SYMPOSIUM ON CIRCUITS AND SYSTEMS, VOL I: ANALOG CIRCUITS AND SIGNAL PROCESSING | 2003年
关键词：
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 fully temperature-compensated linear-in-dB variable gain amplifier (VGA) is presented. The,VGA achieves wide dynamic range and precise.: linear-in-dB control capability using a translinear current amplifier. The compensation technique having current proportional to the squared temperature is proposed. The VGA is implemented with 0.35 mum SiGe BiCMOS process. Greater than 90 dB dynamic range while having only +/-3 dB gain drift from -30degreesC to 85degreesC temperature range is measured.
引用
收藏
页码：285 / 288
页数：4
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