ISLA222P Datasheet, PDF (1/33 Pages) Intersil Corporation – Dual 12-Bit, 250MSPS/200MSPS/130MSPS ADC

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
70.3/71.0/71.3dBFS f_IN = 30MHz
68.5/68.8/68.4dBFS f_IN = 363MHz
• SFDR @ 250/200/130MSPS
85/87/86dBc f_IN = 30MHz
73/75/80dBc f_IN = 363MHz
• 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
CLKP
CLKN
VINBP
VINBN
VCM
VINAN
VINAP
SHA
SHA
CLOCK
MANAGEMENT
CLKOUTP
CLKOUTN
12-BIT
250 MSPS
ADC
VREF
12-BIT
250 MSPS
ADC
VREF
1.25V +–-
DIGITAL
ERROR
CORRECTION
SPI
CONTROL
D[11:0]P
D[11:0]N
ORP
ORN
OUTFMT
OUTMODE
Pin-Compatible Family
MODEL
ISLA224P25
ISLA224P20
ISLA224P13
ISLA222P25
ISLA222P20
ISLA222P13
RESOLUTION
14
14
14
12
12
12
SPEED
(MSPS)
250
200
130
250
200
130
June 17, 2011
1
CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures.
FN7853.1
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