A wideband InP DHBT true logarithmic amplifier

被引:4
|
作者
Chuang, Yuju [1 ]
Cimino, Kurt
Stuenkel, Mark
Feng, Milton
Le, Minh
Milano, Raymond
机构
[1] Univ Illinois, Dept Elect & Comp Engn, Urbana, IL 61801 USA
[2] Vitesse Semicond Inc, Camarillo, CA 93012 USA
关键词
heterojunction bipolar transistors (HBTs); high-speed integrated circuits; logarithmic amplifiers;
D O I
10.1109/TMTT.2006.883239
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 wideband logarithmic amplifier is demonstrated in this paper using InP-InGaAs double heterojunction bipolar transistor technology. The amplifier uses cascaded gain stages including the limiting and unity amplifiers to achieve a piecewise approximation to the ideal logarithmic response. The performance of 43-dB dynamic range, 22-GHz bandwidth, and < +/- 2-dB log error is achieved. The integrated circuit consumes 650 mW and has a chip dimension of 1 x 0.8 mm(2).
引用
收藏
页码:3843 / 3847
页数:5
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