Texas Instruments have announced the industry's fastest 12-bit A/D converter. At 4Gsample/s the ADC12J4000 also supports the JEDEC JESD204B serial interface standard for data converters up to 8Gbit/s with a power requirement of 1.9 W.

The ADC12J4000 provides RF sampling capabilities covering an input bandwidth range of more than 3 GHz. This makes it useful for test and measurement, wireless, and defence applications, including spectrum analyzers, munitions, digital pre-distortion feedback and radar. The converter combines TI's existing giga-sample A/D converter IP with low power digital processing blocks providing digital filtering and down conversion. This enables designers to use it to sample a large block of the frequency spectrum at RF and down convert it to quadrature in the digital domain, which helps reduce signal distortion. TI state that its JESD204B serial interface standard allows it to output data on up to eight lanes, depending on the decimation and link rate settings.


Its 9 mm square QFN package is suitable for the industrial ambient temperature range of -40°C to +85°C. TI also offers a variety of free tools and support to speed development with the ADC12J4000, including an IBIS model to verify board signal integrity requirements and an Op Amp to ADC Circuit Topology Calculator for anti-aliasing filter design and circuit topology.