The ISLA112P50 is a low-power, high-performance, 500MSPS analog-to-digital converter designed with Intersil's proprietary FemtoCharge™ technology on a standard CMOS process. The ISLA112P50 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. Digital output data is presented in selectable LVDS or CMOS formats. The ISLA112P50 is available in a 72 Ld QFN package with an exposed paddle. Performance is specified over the full industrial temperature range (-40°C to +85°C).


  • 1.15GHz Analog Input Bandwidth
  • 90fs Clock Jitter
  • Automatic Fine Interleave Correction Calibration
  • Multiple Chip Time Alignment Support via the Synchronous Clock Divider Reset
  • Programmable Gain, Offset and Skew Control
  • Over-Range Indicator
  • Clock Phase Selection
  • Nap and Sleep Modes
  • Two's Complement, Gray Code or Binary Data Format
  • DDR LVDS-Compatible or LVCMOS Outputs
  • Programmable Test Patterns and Internal Temperature Sensor


  • Radar and Electronic/Signal Intelligence
  • Broadband Communications
  • High-Performance Data Acquisition


Title language Type Format File Size Date
Datasheets & Errata
star ISLA112P50 Datasheet Datasheet PDF 1.65 MB
User Guides & Manuals
8-Bit to 16-Bit, 40MSPS to 500MSPS ADC Evaluation System User Guide Guide PDF 1.02 MB
KAD-FMC-EVALZ User Guide Manual - Development Tools PDF 509 KB
Application Notes & White Papers
AN1604: ISLA11xP50 Output Data Timing and Synchronization Application Note PDF 342 KB
AN1609: Word Error Rate Measurement Methodology and Characterization Results Application Note PDF 296 KB
AN9675: A Tutorial in Coherent and Windowed Sampling with A/D Converters Application Note PDF 503 KB
AN002: Principles of Data Acquisition and Conversion Application Note PDF 1.08 MB
AN9705: A Theoretical View of Coherent Sampling Application Note PDF 287 KB
PCN21037 - Introduce alternate assembly facility of the listed Renesas QFN packaged products Product Change Notice PDF 197 KB
PA14042 - Minimum Line Quantity Change Product Advisory PDF 363 KB
PA10063 - Data Sheet Specification Change for Intersil Product ISLA112P50* Product Advisory PDF 34 KB


Title language Type Format File Size Date
MCR Installer v7.13 Library EXE 162.95 MB
Intersil Konverter Installer V1.22c Library EXE 1.00 MB
ISLA112P50/55210EV1Z Schematics PCB Design Files PDF 56 KB
KDC5512EVAL, KDC5512HEVAL, KDC5512-50EVAL, KDC5514EVAL Schematics and Layers PCB Design Files PDF 483 KB
KMB001 Evaluation Board Schematics and Layers PCB Design Files PDF 959 KB
ISLA112P50/55210EV1Z Layers File PCB Design Files ZIP 246 KB
KMB001xEVALZ Design Files PCB Design Files ZIP 4.49 MB

memoryBoards & Kits

Part Number Title Type Company
12-bit-2GSPS-Reference-Design 12-Bit, 2GSPS Reference Design using 4 Interleaved 12-Bit, 500MSPS ADCs Reference Renesas
High-Speed-A-D-Converters-Eval-Kit High Speed A/D Converter Evaluation Kits Evaluation Renesas
ISLA112P50/55210EV1Z Ultra-Low Power Broadband 8- to 14-Bit Data Acquisition Kit Evaluation Renesas