A 110-MHz 84-dB CMOS programmable gain amplifier with integrated RSSI function

被引：55
|
作者：
Wu, CP [1 ]
Tsao, HW
机构：
[1] Natl Taiwan Univ, Dept Elect Engn, Taipei 10617, Taiwan
[2] Natl Taiwan Univ, Grad Inst Elect Engn, Taipei 10617, Taiwan
来源：
IEEE JOURNAL OF SOLID-STATE CIRCUITS | 2005年 / 40卷 / 06期
关键词：
CMOS analog integrated circuits; CMOS RF transceiver integrated circuits; gain-programming logic; intermediate-frequency amplifiers; IF amplifier; programmable gain amplifier; received signal strength indicator (RSSI);
D O I：
10.1109/JSSC.2005.848023
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：
This paper describes a CMOS programmable gain amplifier (PGA) that maintains a 3-dB bandwidth greater than 110 MHz and can provide an 84-dB gain control range with 1-dB step resolution. The PGA can also be operated in a low-power mode with 3-dB bandwidth greater than 71 MHz. Integrated with this PGA is a CMOS successive logarithmic detecting amplifier with a +/- 0.7-dB logarithmic accuracy over an 80-dB dynamic range. It achieves -83-dBm sensitivity and consumes 13 mA from a single 3-V supply in the normal power mode. The chip area, including pads, occupies 1.5 x 1.5 mm(2).
引用
收藏
页码：1249 / 1258
页数：10
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