This breakthrough performance combined with 2GSPS bandwidth and integrated signal processing functionality enables the trend to direct RF sampling in communications, instrumentation and military/aerospace applications. The converter’s superior noise spectral density of 149.5 dBFS/Hz, coupled with high-input bandwidth, allow designers to use undersampling system architectures into the 2nd Nyquist zone, saving on a frequency down-conversion stage.

The AD9625 is the latest addition to ADI’s wideband RF data acquisition technology portfolio that provides previously unavailable dynamic performance for better signal extraction in congested RF environments over a wider bandwidth than ever before.

The AD9625 is interoperable with FPGAs from major manufacturers and supported with known good configurations. The AD9625, combined with the recently announced the 14-bit, 1-GSPS AD9680 A/D converter, demonstrate ADI’s innovation in providing leading edge offerings driving the trend toward direct RF sampling.

"In high-speed conversion, sampling rate is important, but it isn’t the only thing we consider in our designs—and it isn’t always the most important figure of merit," said John Forinash, engineering vice president, Integrated Solutions, Rincon Research Corporation, a leading provider of advanced digital signal processing solutions and technologies to the government.

"Wide analog input bandwidth, improved dynamic range, and noise power ratio performance are also important considerations as we enable systems to collect and process a wider swath of RF signal bandwidth. The AD9625 is the next-generation 2+ GSPS A/D converter that combines the superior wideband dynamic performance and integrated functionality that we need to achieve our desired RF sampling architecture."

Features:

－ 12-bit 2.0 GSPS ADC, no missing codes

－ SFDR = 80 dBc, AIN up to 1 GHz at −1dBFS, 2.0 GSPS

－ SFDR = 76 dBc, AIN up to 1.8 GHz at −1 dBFS, 2.0 GSPS

－ SNR = 59 dBFS, AIN up to 1 GHz at −1dBFS, 2.0 GSPS

－ Noise floor = −149.5 dBFS/Hz at 2.0 GSPS

－ Power consumption: 3.5 W at 2.0 GSPS

－ Differential analog input:1.1 V p-p