ADS5281 Datasheet, PDF (1/41 Pages) Texas Instruments – 12-Bit Octal-Channel ADC Family Up to 65MSPS

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ADS5281
ADS5282
SBAS397E – DECEMBER 2006 – REVISED JANUARY 2008
12-Bit Octal-Channel ADC Family Up to 65MSPS
FEATURES
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•234 Speed and Resolution Grades:
– ADS5281: 12-bit, 50MSPS
– ADS5282: 12-bit, 65MSPS
• Power Dissipation:
– 48mW/Channel at 30MSPS
– 55mW/Channel at 40MSPS
– 64mW/Channel at 50MSPS
– 77mW/Channel at 65MSPS
• 70dBFS SNR at 10MHz IF
• Analog Input Full-Scale Range: 2V_PP
• Low-Frequency Noise Suppression Mode
• 6dB Overload Recovery In One Clock
• External and Internal (Trimmed) Reference
• 3.3V Analog Supply, 1.8V Digital Supply
• Single-Ended or Differential Clock:
– Clock Duty Cycle Correction Circuit (DCC)
• Programmable Digital Gain: 0dB to 12dB
• Serialized DDR LVDS Output
• Programmable LVDS Current Drive, Internal
Termination
• Test Patterns for Enabling Output Capture
• Straight Offset Binary or Two's Complement
Output
• Package Options:
– 9mm × 9mm QFN-64
– HTQFP-80 PowerPAD™ Compatible with
ADS527x Family
APPLICATIONS
• Medical Imaging
• Wireless Base-Station Infrastructure
• Test and Measurement Instrumentation
DESCRIPTION
The ADS528x is a family of high-performance,
low-power, octal channel analog-to-digital converters
(ADCs). Available in either a 9mm × 9mm QFN
package or an HTQFP-80 package, with serialized
low-voltage differential signaling (LVDS) outputs and
a wide variety of programmable features, the
ADS528x is highly customizable for a diversity of
applications and offers an unprecedented level of
system integration. An application note, XAPP774
(available at www.xilinx.com) describes how to
interface the serial LVDS outputs of TI's ADCs to
Xilinx^® field-programmable gate arrays (FPGAs). The
ADS528x family is specified over the industrial
temperature range of –40°C to +85°C.
Clock
Buffer
6x ADCLK
PLL
12x ADCLK
1x ADCLK
IN1_P
IN1_N
12-Bit
ADC
Digital
Serializer
IN8_P
IN8_N
12-Bit
ADC
Digital
Serializer
LCLK_P
LCLK_N
ADCLK_P
ADCLK_N
OUT1_P
OUT1_N
Channels
2 to 7
OUT8_P
OUT8_N
Reference
Power-
Down
Registers
ADC
Control
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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.
PowerPAD is a trademark of Texas Instruments, Inc.
2
Xilinx is a registered trademark of Xilinx, Inc.
3
All other trademarks are the property of their respective owners.
4
UNLESS OTHERWISE NOTED this document contains
PRODUCTION DATA information current as of publication date.
Products conform to specifications per the terms of Texas
Instruments standard warranty. Production processing does not
necessarily include testing of all parameters.
Copyright © 2006–2008, Texas Instruments Incorporated