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CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures.

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Dual 12-Bit, 250MSPS/200MSPS/130MSPS ADC

ISLA222P

The ISLA222P is a family of dual-channel 12-bit

analog-to-digital converters. Designed with Intersil’s

proprietary FemtoCharge™ technology on a standard CMOS

process, the family supports sampling rates of up to

250MSPS. The ISLA222P is part of a pin-compatible portfolio

of 12-bit and 14-bit dual-channel A/Ds with maximum sample

rates ranging from 130MSPS to 250MSPS.

A serial peripheral interface (SPI) port allows for extensive

configurability, as well as fine control of various parameters

such as gain and offset.

Digital output data is presented in selectable LVDS or CMOS

formats. The ISLA222P is available in a 72 lead QFN package

with an exposed paddle. Operating from a 1.8V supply,

performance is specified over the full industrial temperature

range (-40°C to +85°C).

Key Specifications

• SNR @ 250/200/130MSPS

• SFDR @ 250/200/130MSPS

• Total Power Consumption = 823mW @ 250MSPS

Features

• Single Supply 1.8V Operation

• Clock Duty Cycle Stabilizer

• 75fs Clock Jitter

• 700MHz Bandwidth

• Programmable Built-in Test Patterns

•Multi-ADC Support

- SPI Programmable Fine Gain and Offset Control

- Support for Multiple ADC Synchronization

- Optimized Output Timing

• Nap and Sleep Modes

- 200µs Sleep Wake-up Time

• Data Output Clock

• DDR LVDS-Compatible or LVCMOS Outputs

• User-accessible Digital Temperature Monitor

Applications

• Radar Array Processing

• Software Defined Radios

• Broadband Communications

• High-Performance Data Acquisition

• Communications Test Equipment

DIGITAL

ERROR

CORRECTION

SHA

1.25V

VINBP

VINBN

12-BIT

250 MSPS

ADC

CLOCK

MANAGEMENT

SHA

12-BIT

250 MSPS

ADC

CLKP

CLKN

SPI

CONTROL

VREF

CLKOUTP

CLKOUTN

D[11:0]P

D[11:0]N

ORP

ORN

OUTFMT

OUTMODE

+

–

VCM

VREF

VINAN

VINAP

+

-

Pin-Compatible Family

MODEL

RESOLUTION

SPEED

(MSPS)

ISLA224P25

14

250

ISLA224P20

14

200

ISLA224P13

14

130

ISLA222P25

12

250

ISLA222P20

12

200

ISLA222P13

12

130

June 17, 2011

FN7853.1