RF-Sampling ADC directly samples input frequencies from DC to above 10GHz

The Texas Instruments ADC08DJ3200 device is an RF-sampling, giga-sample, ADC that can directly sample input frequencies from DC to above 10 GHz. In dual-channel mode, the device can sample up to 3200MSPS and up to 6400MSPS in single-channel mode. Programmable tradeoffs in channel count (dual-channel mode) and Nyquist bandwidth (single-channel mode) enable development of flexible hardware meeting the requirements of both high channel count or wide instantaneous signal bandwidth applications. Full-power input bandwidth (–3dB) of 8GHz, with usable frequencies exceeding the –3dB point in both dual- and single-channel modes, allows direct RF sampling of L-band, S-band, C-band, and X-band for frequency agile systems. The device uses a high-speed JESD204B output interface with up to 16 serialised lanes and subclass-1 compliance for deterministic latency and multi-device synchronisation. The serial output lanes support up to 12.8Gbps and can be configured to trade-off bit rate and the number of lanes. At 5GSPS, only four total lanes are required running at 12.5Gbps, or 16 lanes can be used to reduce the lane rate to 3.125Gbps. Innovative synchronisation features, including noiseless aperture delay (TAD) adjustment and SYSREF windowing, simplify system design for phased array radar and MIMO communications.