Summary
International Technical Conference on Circuits/Systems, Computers and Communications
2008
Session Number:P2
Session:
Number:P2-19
A 1.1 mW 60 dB Dynamic Range Received Signal Strength Indicator with Low Power Limiting Amplifier
Moon-Ho Choi, Jong-Soo Lee, Yeong-Seuk Kim,
pp.-
Publication Date:2008/7/7
Online ISSN:2188-5079
Summary:
A low-power CMOS limiting amplifier(LA) and received signal strength indicator(RSSI) are presented. The proposed LA employs folded diode structure with source degeneration load. This structure requires less transconductance than that of conventional structure. The proposed RSSI consists of seven stage of LA, full wave rectifier(FWR), and second order LPF. The RSSI is designed using 0.18 μm CMOS technology. It shows 60 dB input dynamic range and power consumption is 1.1 mW on the 1.8 V supply. Nominal slope of the RSSI transfer curve is 20 mV / dB at 20 kΩ load.