Ridgetop’s radiation-hardened programmable SiGe analog-to-digital data converter (ADC) has fast digitization with extremely high linearity and dynamic range to achieve system performance targets. In many applications, with the added requirement of radiation hardness and low power, the ADC is a critical chokepoint that must meet demanding standards. Accordingly, Ridgetop’s ADC is highly linear with an INL and DNL of no more than ±0.5 LSB, an operating temperature range of at least -10 to 80 °C, a very high effective number of bits (ENOB) of 11.0, and a total ionizing dose (TID) rating of 1 Mrad. The ADC employs an innovative time-interleaved pipeline architecture and is based on the advanced silicon-germanium (SiGe) bipolar complementary metal oxide semiconductor (BiCMOS) technology, providing an effective number of bits more than 2 bits higher (ENOB = 11.0 bits) than the best commercially available 3 GS/s ADC.
Additionally, the ADC conserves valuable power because it uses 77% less power than commercially available ADCs. For maximum flexibility, the ADC provides four configurable pipeline channels and two programmable operation modes: (1) 12-bit (ENOB = 11.0 bits), 3 GS/s, 860 mW; (2) 14-b (ENOB = 12.0 bits), 500 MS/s, 860 mW.