DATASHEET
ISLA118P50 FN7565
Rev 2.00
July 25, 2011 8-Bit, 500MSPS A/D Converter
The ISLA118P50 is a low-power, high-performance, 500MSPS
analog-to-digital converter designed with Intersil’s proprietary
FemtoChargeв„ў technology on a standard CMOS process. The
ISLA118P50 is part of a pin-compatible portfolio of 8, 10 and
12-bit A/Ds. This device an upgrade of the KAD551XP-50
product family and is pin similar.
The device utilizes two time-interleaved 250MSPS unit A/Ds 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
Intersil Interleave Engine (I2E) performs automatic fine
correction of offset, gain, and sample time skew mismatches
between the unit A/Ds to optimize performance. No external
interleaving algorithm is required.
A serial peripheral interface (SPI) port allows for extensive
configurability of the A/D. The SPI also controls the interleave
correction circuitry, allowing the system to issue continuous
calibration commands as well as configure many dynamic
parameters. …