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Burr-Brown Corporation - 65MSPS Analog-to-Digital Converter

Numéro de référence ADS5242
Description 65MSPS Analog-to-Digital Converter
Fabricant Burr-Brown Corporation 
Logo Burr-Brown Corporation 





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ADS5242 fiche technique
BurrĆBrown Products
from Texas Instruments
ADS5242
SBAS330C – OCTOBER 2004 – REVISED OCTOBER 2005
4-Channel, 12-Bit, 65MSPS Analog-to-Digital Converter
with Serial LVDS Interface
FEATURES
Maximum Sample Rate: 65MSPS
12-Bit Resolution
No Missing Codes
Total Power Dissipation
Internal Reference: 660mW
External Reference: 594mW
CMOS Technology
Simultaneous Sample-and-Hold
70.8dBFS SNR at 10MHz IF
3.3V Digital/Analog Supply
Serialized LVDS Outputs
Integrated Frame and Bit Patterns
Option to Double LVDS Clock Output Currents
Four Current Modes for LVDS
Pin- and Format-Compatible Family
HTQFP-64 PowerPAD™ Package
APPLICATIONS
Portable Ultrasound Systems
Tape Drives
Test Equipment
Optical Networking
Communications
DESCRIPTION
The ADS5242 is a high-performance, 65MSPS,
4-channel analog-to-digital converter (ADC). Internal
references are provided, simplifying system design
requirements. Low power consumption allows for the
highest of system integration densities. Serial LVDS
(low-voltage differential signaling) outputs reduce the
number of interface lines and package size.
MODEL
ADS5240
RELATED PRODUCTS
RESOLUTION
(BITS)
12
SAMPLE RATE
(MSPS)
40
CHANNELS
4
An integrated phase lock loop (PLL) multiplies the
incoming ADC sampling clock by a factor of 12. This
high-frequency LVDS clock is used in the data
serialization and transmission process. The word
output of each internal ADC is serialized and
transmitted either MSB or LSB first. In addition to the
four data outputs, a bit clock and a word clock are
also transmitted. The bit clock is at 6x the speed of
the sampling clock, whereas the word clock is at the
same speed of the sampling clock.
The ADS5242 provides internal references, or can
optionally be driven with external references. Best
performance can be achieved through the internal
reference mode.
The device is available in an HTQFP-64 PowerPAD
package and is specified over a –40°C to +85°C
operating range.
ADCLK
6x ADCLK
12x ADCLK
PLL
1x ADCLK
IN1P
IN1N
S/H
IN2P
IN2N
S/H
IN3P
IN3N
S/H
IN4P
IN4N
S/H
12− Bit
ADC
12− Bit
ADC
12− Bit
ADC
12− Bit
ADC
Serializer
Serializer
Serializer
Serializer
R e fe re n c e
Registers
Control
INT/EXT
LCLKP
LCLKN
ADCLKP
ADCLKN
OUT1P
OUT1N
OUT2P
OUT2N
OUT3P
OUT3N
OUT4P
OUT4N
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.
All trademarks are the property of their respective owners.
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 © 2004–2005, Texas Instruments Incorporated

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