Introduction, characteristics, and applications of Texas Instruments ADC12DJ5200RF 12-bit analog-to-digital converter

The Texas Instruments ADC12DJ5200RF 12-bit analog-to-digital converter (ADC) can sample two channels at 5.2G samples/s, which can be interleaved into a single channel at 10.4 Gsamples/s. That is, two 12bit 2.6GHz instantaneous bandwidth channels or one 5.2GHz instantaneous bandwidth channel. The ADC uses a 65nm pure CMOS process rather than a SiGe process, which provides a good compromise between analog and digital performance.

The chip provides a JESD244C interface for connection to the host FPGA, providing greater data efficiency and cost savings on the FPGA side because the FPGA can use fewer Gbit/s of server [serializer-deserializer] channels . 16 or 8 lanes available – up to 16 lanes at 10.4Gbit/s or 8 lanes at up to 17.1Gbit/s. The analog input bandwidth of the Texas Instruments ADC12DJ5200RF is 8GHz (3dB 800mV(pp)), with available input frequencies up to 10GHz. Input impedance is controlled at 100 ohms differential and calibrated at switch-on. Integrated dithering options can improve linearity or distortion performance in certain applications.

Other features include high dynamic performance across supply changes, offset error as low as ±300µV, and zero temperature drift. Power consumption is 4W, including fast data interface, using 10mm x 10mm 144-ball BGA, pin compatible with the slower ADC12DJ3200, ADC12DJ2700 or ADC08DJ3200. Expected applications include 5G testing, oscilloscopes and radar (for direct x-band sampling). The ADC12DJ5200-EP device uses gold bond wires, has a temperature range of -55 to +105°C, and uses SnPb lead processing.

Functional block diagram