A chopping switched-capacitor RF receiver with integrated blocker detection, +31dBm OB-IIP3, and +15dBm OB-B1dB

A 0.1-0.6GHz chopping switched-capacitor RF receiver with integrated blocker detector features tunable center frequency, programmable filter order, and very high out-of-band linearity. RF impedance matching, high-order OB interferer filtering, and flicker-noise chopping are achieved by passive SC circuits only. The 34-80mW 65nm receiver achieves 35dB gain, +31dBm OB-IIP3, +15dBm B1dB, and 4.6-9dB NF. The filter order is adapted to blocker power with a blocker detector with a 1us response time.