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Burr-Brown Corporation

ADS5240 Datasheet Preview

ADS5240 Datasheet

40MSPS ADC

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BurrĆBrown Products
from Texas Instruments
¨
ADS5240
SBAS326C – JUNE 2004 – REVISED DECEMBER 2004
4-Channel, 12-Bit, 40MSPS ADC
with Serial LVDS Interface
FEATURES
Maximum Sample Rate: 40MSPS
12-Bit Resolution
No Missing Codes
Power Dissipation: 607mW
CMOS Technology
Simultaneous Sample-and-Hold
70.5dBFS SNR at 10MHz IF
Internal and External References
3.3V Digital/Analog Supply
Serialized LVDS Outputs
Integrated Frame and Bit Patterns
MSB and LSB First Modes
Option to Double LVDS Clock Output Currents
Pin- and Format-Compatible Family
HTQFP-64 PowerPAD™ Package
APPLICATIONS
Portable Ultrasound Systems
Tape Drives
Test Equipment
Optical Networking
DESCRIPTION
The ADS5240 is a high-performance, 4-channel,
40MSPS 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.
RELATED PRODUCTS
MODEL
RESOLUTION
(BITS)
ADS5242(1)
12
(1) Available Q1 2005.
SAMPLE RATE
(MSPS)
CHANNELS
65 4
An integrated phase lock loop multiplies the incoming
ADC sampling clock by a factor of 12. This 12x clock
is used in the process of serializing the data output
from each channel. The 12x clock is also used to
generate a 1x and a 6x clock, both of which are
transmitted as LVDS clock outputs. The 6x clock is
denoted by the differential pair LCLKP and LCLKN,
while the 1x clock is denoted by ADCLKP and
ADCLKN. The word output of each ADC channel can
be transmitted either as MSB or LSB first. The bit
coinciding with the rising edge of the 1x clock output
is the first bit of the word. Data is to be latched by the
receiver on both the rising and falling edges of the 6x
clock.
The ADS5240 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.
6X ADCLK
ADCLK
PLL
1X ADCLK
IN 1 P
IN1N
S/H
IN 2 P
IN2N
S/H
IN 3 P
IN3N
S/H
IN 4 P
IN4N
S/H
12− Bit
ADC
12− Bit
ADC
12− Bit
ADC
12− Bit
ADC
Serializer
Serializer
Serializer
Serializer
Reference
R e g is te rs
C o n tr o l
INT /E X T
LCLKP
LCLKN
ADC LKP
ADC LKN
OUT 1P
OUT 1N
OUT 2P
OUT 2N
OUT 3P
OUT 3N
OUT 4P
OUT 4N
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 other 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, Texas Instruments Incorporated




Burr-Brown Corporation

ADS5240 Datasheet Preview

ADS5240 Datasheet

40MSPS ADC

No Preview Available !

ADS5240
SBAS326C – JUNE 2004 – REVISED DECEMBER 2004
www.ti.com
This integrated circuit can be damaged by ESD. Texas Instruments recommends that all integrated
circuits be handled with appropriate precautions. Failure to observe proper handling and installation
procedures can cause damage.
ESD damage can range from subtle performance degradation to complete device failure. Precision
integrated circuits may be more susceptible to damage because very small parametric changes could
cause the device not to meet its published specifications.
ORDERING INFORMATION(1)
PRODUCT
ADS5240
PACKAGE-LEAD
HTQFP-64 (2)
PACKAGE
DESIGNATOR
PAP
SPECIFIED
TEMPERATURE
RANGE
-40°C to +85°C
PACKAGE
MARKING
ADS5240I
ORDERING
NUMBER
ADS5240IPAP
ADS5240IPAPT
TRANSPORT
MEDIA, QUANTITY
Tray, 160
Tape and Reel, 1000
(1) For the most current package and ordering information, see the Package Option Addendum located at the end of this data sheet.
(2) Thermal pad size: 5.29mm × 5.29mm (min), 6.50mm × 6.50mm (max).
ABSOLUTE MAXIMUM RATINGS(1)
Supply Voltage Range, AVDD
Supply Voltage Range, LVDD
Voltage Between AVSS and LVSS
Voltage Between AVDD and LVDD
Voltage Applied to External REF Pins
All LVDS Data and Clock Outputs
Analog Input Pins
Peak Total Input Current (all inputs)
Junction Temperature
Operating Free-Air Temperature Range, TA
Lead Temperature, 1.6mm (1/16" from case for 10s)
-0.3V to +3.8V
-0.3V to +3.8V
-0.3V to +0.3V
-0.3V to +0.3V
-0.3V to +2.4V
-0.3V to +2.4V
-0.15V to +3.0V
30mA
+105°C
-40°C to +85°C
220°C
(1) Stresses above these ratings may cause permanent damage. Exposure to absolute maximum conditions for extended periods may
degrade device reliability. These are stress ratings only, and functional operation of the device at these or any other conditions beyond
those specified is not supported.
2


Part Number ADS5240
Description 40MSPS ADC
Maker Burr-Brown Corporation
Total Page 24 Pages
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