ADS5525_14 Datasheet, PDF (1/59 Pages) Texas Instruments – 12-BIT, 170 MSPS ADC WITH DDR LVDS/CMOS OUTPUTS

ADS5525
www.ti.com
SLWS191B – JULY 2006 – REVISED MAY 2007
12-BIT, 170 MSPS ADC WITH DDR LVDS/CMOS OUTPUTS
FEATURES
• Maximum Sample Rate: 170 MSPS
• 12-Bit Resolution
• No Missing Codes
• Total Power Dissipation 1.1 W
• Internal Sample and Hold
• 70.5-dBFS SNR at 70-MHz IF
• 84-dBc SFDR at 70-MHz IF
• 11 bits ENOB Minimum at 70-MHz IF
• Double Data Rate (DDR) LVDS and Parallel
CMOS Output Options
• Programmable Gain up to 6 dB for SNR/SFDR
Trade-Off at High IF
• Reduced Power Modes at Lower Sample
Rates
• Supports input clock amplitude down to
400 mV_PP
• Clock Duty Cycle Stabilizer
• No External Reference Decoupling Required
• Internal and External Reference Support
• Programmable Output Clock position to ease
data capture
• 3.3-V Analog and Digital Supply
• 48-QFN Package (7 mm × 7 mm)
APPLICATIONS
• Wireless Communications Infrastructure
• Software Defined Radio
• Power Amplifier Linearization
• 802.16d/e
• Test and Measurement Instrumentation
• High Definition Video
• Medical Imaging
• Radar Systems
DESCRIPTION
ADS5525 is a high performance 12-bit, 170-MSPS
A/D converter. It offers state-of-the art functionality
and performance using advanced techniques to
minimize board space. Using an internal sample and
hold and low jitter clock buffer, the ADC supports
both high SNR and high SFDR at high input
frequencies. It features programmable gain options
that can be used to improve SFDR performance at
lower full-scale analog input ranges.
In a compact 48-pin QFN, the device offers fully
differential LVDS DDR (Double Data Rate) interface
while parallel CMOS outputs can also be selected.
Flexible output clock position programmability is
available to ease capture and trade-off setup for hold
times. At lower sampling rates, the ADC can be
operated at scaled down power with no loss in
performance. ADS5525 includes an internal
reference, while eliminating the traditional reference
pins and associated external decoupling. The device
also supports an external reference mode.
The device is specified over the industrial
temperature range (-40°C to 85°C).
Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of Texas
Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.
PRODUCTION DATA information is current as of publication date.
Products conform to specifications per the terms of the Texas
Instruments standard warranty. Production processing does not
necessarily include testing of all parameters.
Copyright © 2006–2007, Texas Instruments Incorporated