A 50-MHz dB-linear programmable-gain amplifier with 98-dB dynamic range and 2-dB gain steps for 3 V power supply

被引：7

作者：

Nah, KS ^{[1
]}

Park, BH ^{[1
]}

机构：

[1] Samsung Elect Co Ltd, Yongin 449711, Kyungki Do, South Korea

来源：

IEEE TRANSACTIONS ON VERY LARGE SCALE INTEGRATION (VLSI) SYSTEMS | 2003年 / 11卷 / 02期

关键词：

automatic-gain control; dB-linear gain controllability; digital-to-analog converter; programmable-gain amplifier (PGA); transceiver; variable-gain amplifier; VGA quad;

D O I：

10.1109/TVLSI.2003.810797

中图分类号：

TP3 [计算技术、计算机技术];

学科分类号：

0812 ;

摘要：

A programmable-gain amplifier (PGA) circuit introduced in this paper has a dynamic gain range of 98 dB with 2 dB gain steps and is controlled by 6-bit gain control bits for a 3 V power supply. It has been fabricated in a 0.5 mum 15 GHz f(T) Si BiCMOS process and draws 13 mA. The active die area taken up by the circuit is 400 mum x 1170 mum. A noise figure (NF) of 4.9 dB was measured at the maximum gain setting. In addition, an analysis of the bias current generation to provide dB-linear gain control is presented.

引用

页码：218 / 223

页数：6

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