Total Ionizing Dose Characterization of an 8-bit 200-MSps Switched-Capacitor Pipeline A-to-D Converter in 32nm SOI CMOS

Abstract

A Radiation-Hardened By Design 8-bit 32nm SOI CMOS pipeline ADC shows no AC performance nor non-linearity worsening vs. TID when operated at 200MSps sampling rate, -1dBFS sinewave input amplitude. The circuit shows no visible performance variation during irradiation, and maintains >42dBFS SNR, >61dBc SFDR up to 1Mrad(Si) after LMS (Least Mean Square) gain and offset calibration techniques are applied.