A CMOS amplitude detector for RF-BIST and calibration

In this work, we present a wideband CMOS RF amplitude detector for on-chip self-test and calibration. The proposed detector offers a high conversion gain (-10V/V), thus allowing for very fine detection of RF amplitude changes, and has a wide dynamic range enabling detection of RF peak amplitude changes between 0 and 0.7V. Additionally, its wideband capabilities make it especially useful for today's multiband multi-standard applications such as WLAN and WiMAX. The detector is built in 0.18¿m CMOS and uses a 1.8V power supply.