Precise RSSI with High Process Variation Tolerance

— A receiving signal strength indicator (RSSI) built with transconductance amplifiers is presented. The RSSI achieves high tolerance to process variations by utilizing the unique nature of branch currents in a transconductance amplifier. These branch currents are used to implement a current-mode rectifier and amplitude clipping circuit that are tolerant of process variations. An on-chip offset control loop permits the entire RSSI to be realized with only one

• Type: Conference
• Year: 2007
• Where: ISCAS
• Authors: Chao Yang, Andrew Mason
• Keywords: Branch Currents, ISCAS 2007, Process Variations, RSSI