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Burr-Brown Corporation

ADS5220 Datasheet Preview

ADS5220 Datasheet

ANALOG-TO-DIGITAL CONVERTER

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ADS5220
ADS5220
SBAS261A – APRIL 2003 – REVISED MARCH 2004
12-Bit, 40MSPS Sampling, +3.3V
ANALOG-TO-DIGITAL CONVERTER
FEATURES
q HIGH SNR: 70dB
q HIGH SFDR: 88dBFS
q LOW POWER: 195mW
q INTERNAL/EXTERNAL REFERENCE OPTION
q SINGLE-ENDED OR
FULLY DIFFERENTIAL ANALOG INPUT
q PROGRAMMABLE INPUT RANGE
q LOW DNL: 0.3LSB
q SINGLE +3.3V SUPPLY OPERATION
q TQFP-48 PACKAGE
APPLICATIONS
q WIRELESS LOCAL LOOP
q COMMUNICATIONS
q MEDICAL IMAGING
q PORTABLE INSTRUMENTATION
DESCRIPTION
The ADS5220 is a pipeline, CMOS Analog-to-Digital Con-
verter (ADC) that operates from a single +3.3V power
supply. This converter can be operated with a single-ended
input or differential input. The ADS5220 includes a 12-bit
quantizer, high bandwidth track-and-hold, and an internal
reference. It also allows the user to disable the internal
reference and utilize external references which provide ex-
cellent gain and offset matching when used in multi-channel
applications or in applications where full-scale range adjust-
ment is required.
The ADS5220 employs digital error correction techniques to
provide excellent differential linearity for demanding imag-
ing applications. Its low distortion and high SNR give the
extra margin needed for medical imaging, communications,
video, and test instrumentation. The ADS5220 offers power
dissipation of 195mW and also provides two power-down
modes.
The ADS5220 is specified at a maximum sampling fre-
quency of 40MSPS and a differential input range of
1V to 2V. The ADS5220 is available in a TQFP-48 package.
AVDD
ADS5220
CLK
Timing/Duty Cycle
Adjust
Circuitry
VDRV
IN
VIN
IN
S/H
12-Bit
Pipelined
ADC
Error
Correction
Logic
3-State
Output
D0
•••
D11
Internal
Reference
OVR
STPD QPD
REFT REFB
RSEL VREF
OE
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.
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 Texas Instruments
standard warranty. Production processing does not necessarily include
testing of all parameters.
www.ti.com
Copyright © 2003-2004, Texas Instruments Incorporated




Burr-Brown Corporation

ADS5220 Datasheet Preview

ADS5220 Datasheet

ANALOG-TO-DIGITAL CONVERTER

No Preview Available !

ABSOLUTE MAXIMUM RATINGS(1)
AVDD, DVDD, VDRV ........................................................................... +3.8V
Analog Input ............................................................. 0.3V to (+VS + 0.3V)
Logic Input ............................................................... 0.3V to (+VS + 0.3V)
Case Temperature ......................................................................... +100°C
Junction Temperature .................................................................... +150°C
Storage Temperature ..................................................................... +150°C
NOTE: (1) Stresses above these ratings may cause permanent damage.
Exposure to absolute maximum conditions for extended periods may degrade
device reliability.
ELECTROSTATIC
DISCHARGE SENSITIVITY
This integrated circuit can be damaged by ESD. Texas Instru-
ments 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.
PACKAGE/ORDERING INFORMATION
PRODUCT
ADS5220
"
ADS5220
"
PACKAGE-LEAD
TQFP-48
"
QFN-48(2)
"
PACKAGE
DESIGNATOR(1)
PFB
"
RGZ
"
SPECIFIED
TEMPERATURE
RANGE
40°C to +85°C
"
40°C to +85°C
"
PACKAGE
MARKING
ADS5220PFB
"
ADS5220RGZ
"
ORDERING
NUMBER
ADS5220PFBT
ADS5220IPFBR
ADS5220RGZ
ADS5220IRGZR
TRANSPORT
MEDIA, QUANTITY
Tape and Reel, 250
Tape and Reel, 2000
Rails, 52
Tape and Reel, 1000
NOTE: (1) For the most current specifications and package information, refer to our web site at www.ti.com.
(2) This package available Q2 2004.
ELECTRICAL CHARACTERISTICS: AVDD = 3.3V
TMIN = 40°C, TMAX = +85°C, typical values are at TA = +25°C, sampling rate = 40MSPS, 50% clock duty cycle, AVDD = 3.3V, DVDD = 3.3, VDRV = 2.5V, 1dBFS, DCA
off, internal reference voltage, and 2VPP differential input, unless otherwise noted.
ADS5220
PARAMETER
CONDITIONS
MIN
TYP
MAX
UNITS
RESOLUTION
SPECIFIED TEMPERATURE RANGE
ANALOG INPUT
Single-Ended Input Range
Optional Single-Ended Input Range
Differential Input Range
Analog Input Bias Current
Input Impedance
Analog Input Bandwidth
CONVERSION CHARACTERISTICS
Sample Rate
Data Latency
Clock Duty Cycle
DYNAMIC CHARACTERISTICS
Differential Linearity Error (largest code error)
f = 2.4MHz
f = 9.7MHz
No Missing Codes
Integral Nonlinearity Error, f = 2.4MHz
Spurious-Free Dynamic Range(1)
f = 2.4MHz
f = 9.7MHz
f = 19.8MHz
2-Tone Intermodulation Distortion(3)
f = 9.5MHz and 10.5MHz (7dB each tone)
Signal-to-Noise Ratio (SNR)
f = 2.4MHz
f = 9.7MHz
f = 19.8MHz
Signal-to-(Noise + Distortion) (SINAD)
f = 2.4MHz
f = 9.7MHz
f = 19.8MHz
Effective Number of Bits(4), f = 2.4MHz
Output Noise
Aperture Delay Time
Aperture Jitter
Over-Voltage Recovery Time
Full-Scale Step Acquisition Time
Ambient Air
2VPP
1VPP
2VPP
Static, No Clock
3dBFS Input
Mode Select Enabled
Referred to Full-Scale
Referred to Full-Scale
Referred to Full-Scale
Input Tied to Common-Mode
0.5
1
1
1M
83
68.5
68
12 Tested
40 to +85
1
1.25 || 5
300
5
35 to 65
±0.3
±0.35
Tested
±0.7
88
88
76
86.3
70
70
69
69
69
68
11.2
0.3
3
1.2
1.0
5
2.5
2
2
40M
±0.75
±1.5
Bits
°C
V
V
V
µA
M|| pF
MHz
Samples/s
Clock Cycle
%
LSB
LSB
LSBs
dBFS(2)
dBFS
dBFS
dBc
dBFS
dBFS
dBFS
dBFS
dBFS
dBFS
Bits
LSBrms
ns
ps rms
Clock Cycle
ns
2 ADS5220
www.ti.com
SBAS261A


Part Number ADS5220
Description ANALOG-TO-DIGITAL CONVERTER
Maker Burr-Brown Corporation
Total Page 20 Pages
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