ISLA112P50 / ISLA214P50 500MSPS FemtoCharge™ ADCs

Renesas / Intersil ISLA112P50 and ISLA214P50 are 12-bit and 14-bit 500MSPS analog-to-digital converters designed with Intersil's proprietary FemtoCharge™ technology on a standard CMOS process. FemtoCharge is a charge-domain signal processing technology that drastically reduces the power consumption over traditional voltage-domain design techniques. These Renesas / Intersil devices utilize two time-interleaved 250MSPS unit ADCs to achieve the ultimate sample rate of 500MSPS. A single 500MHz conversion clock is presented to the converter, and all interleave clocking is managed internally. The proprietary Renesas / Intersil Interleave Engine performs automatic correction of offset, gain, and sample time mismatches between the unit ADCs to optimize performance. An SPI port on these devices allows for extensive configurability of the ADC. The SPI also controls the interleave correction circuitry, allowing the system to issue continuous calibration commands and configure many dynamic parameters. Digital output data is presented in selectable LVDS or CMOS formats.