70MSPS ADC. ADS5273 Datasheet

ADS5273 ADC. Datasheet pdf. Equivalent

ADS5273 Datasheet
Recommendation ADS5273 Datasheet
Part ADS5273
Description 70MSPS ADC
Feature ADS5273; ADS5273 SBAS305A − JANUARY 2004 − REVISED FEBRUARY 2004 8-Channel, 12-Bit, 70MSPS ADC with Seriali.
Manufacture Burr-Brown Corporation
Datasheet
Download ADS5273 Datasheet




Burr-Brown Corporation ADS5273
ADS5273
SBAS305A − JANUARY 2004 − REVISED FEBRUARY 2004
8-Channel, 12-Bit, 70MSPS ADC
with Serialized LVDS Interface
FEATURES
D Maximum Sample Rate: 70MSPS
D 12-Bit Resolution
www.DataSheet4UD.comNo Missing Codes
D Power Dissipation: 1.1W
D CMOS Technology
D Simultaneous Sample-and-Hold
D 70.5dB SNR at 10MHz IF
D Serialized LVDS Outputs Meet or Exceed the
Requirements of ANSI TIA/EIA-644-A
Standard
D Internal and External References
D 3.3V Digital/Analog Supply
D TQFP-80 PowerPADPackage
APPLICATIONS
D Portable Ultrasound Systems
D Tape Drives
D Test Equipment
DESCRIPTION
The ADS5273 is a high-performance, 70MSPS, 8-channel
parallel analog-to-digital converter (ADC). An internal
reference is provided, simplifying system design
requirements. Low power consumption allows for the
highest of system integration densities. Serial LVDS
outputs reduce the number of interface lines and package
size.
In LVDS (low-voltage differential signaling), an integrated
phase lock loop multiplies the incoming ADC sampling
clock by a factor of 6. This high-frequency LVDS clock is
used in the data serialization and transmission process
and is converted to an LVDS signal for transmission in
parallel with the data. Providing this additional LVDS clock
allows for easy delay matching. The word output of each
internal ADC is serialized and transmitted either MSB or
LSB first. The bit following the rising edge of the ADC clock
output is the first bit of the word.
The ADS5273 provides an internal reference, or can
optionally be driven with an external reference. Best
performance can be achieved through the internal
reference mode.
The device is available in a PowerPAD TQFP-80 package
and is specified over a −40°C to +85°C operating range.
6X ADCLK
ADCLK
PLL
1X ADCLK
IN1P
IN1N
S/H
IN2P
IN2N
S/H
IN3P
IN3N
S/H
IN4P
IN4N
S/H
IN5P
IN5N
S/H
IN6P
IN6N
S/H
IN7P
IN7N
S/H
IN8P
IN8N
S/H
12−Bit
ADC
12−Bit
ADC
12−Bit
ADC
12−Bit
ADC
12−Bit
ADC
12−Bit
ADC
12−Bit
ADC
12−Bit
ADC
Serializer
Serializer
Serializer
Serializer
Serializer
Serializer
Serializer
Serializer
Reference
Registers
Control
INT/EXT
LCLKP
LCLKN
ADCLKP
ADCLKN
OUT1P
OUT1N
OUT2P
OUT2N
OUT3P
OUT3N
OUT4P
OUT4N
OUT5P
OUT5N
OUT6P
OUT6N
OUT7P
OUT7N
OUT8P
OUT8N
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 registered trademark of Texas Instruments. All other trademarks are the property of their respective owners.
PRODUCT PREVIEW information concerns products in the formative or design
phase of development. Characteristic data and other specifications are design
goals. Texas Instruments reserves the right to change or discontinue these
products without notice.
www.ti.com
Copyright 2004, Texas Instruments Incorporated



Burr-Brown Corporation ADS5273
ADS5273
SBAS305A − JANUARY 2004 − REVISED FEBRUARY 2004
ABSOLUTE MAXIMUM RATINGS(1)
Supply Voltage Range, AVDD . . . . . . . . . . . . . . . . . . −0.3V to 3.8V
Supply Voltage Range, LVDD . . . . . . . . . . . . . . . . . . −0.3V to 3.8V
Voltage Between AVSS and LVSS . . . . . . . . . . . . . . −0.3V to 0.3V
Voltage Between AVDD and LVDD . . . . . . . . . . . . . . −0.3V to 0.3V
Voltages Applied to External REF Pins . . . . . . . . . . −0.3V to 2.4V
All LVDS Data and Clock Outputs . . . . . . . . . . . . . . −0.3V to 2.4V
ADCLK Peak Input Current . . . . . . . . . . . . . . . . . . . . . . . . . . . . TBD
Peak Total Input Current (all inputs) . . . . . . . . . . . . . . . . . . . −30mA
Operating Free-Air Temperature Range, TA . . . . . . −40°C to 85°C
Lead Temperature 1.6mm (1/16from case for 10s) . . . . . . 235°C
(1) Stresses above these ratings may cause permanent damage.
www.DataSheet4EmUxa.pcyoodmseugreratdoeadbesvoilcueteremliaabxiilmityu.mThceosnedaitiroensstrfeosrserxatetinndgesdonpleyr,iaondds
functional operation of the device at these or any other conditions
beyond those specified is not supported.
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
PRODUCT
PACKAGE-LEAD
PACKAGE
DESIGNATOR(1)
SPECIFIED
TEMPERATURE
RANGE
PACKAGE
MARKING
ORDERING
NUMBER
ADS5273
HTQFP-80
PFP −40°C to +85°C ADS5273IPFP ADS5273IPFP
″ ″ ″ ″ ″ ADS5273IPFPT
(1) For the most current specification and package information, refer to our web site at www.ti.com.
TRANSPORT
MEDIA, QUANTITY
Tray, 96
Tape and Reel, 250
RECOMMENDED OPERATING CONDITIONS
SUPPLIES AND REFERENCES
Analog Supply Voltage, AVDD
Output Driver Supply Voltage, LVDD
CLOCK INPUT AND OUTPUTS
ADCLK Input Sample Rate (low-voltage TTL), 1/tC
Low Voltage Level Clock
High Voltage Level Clock
ADCLKP and ADCLKN Outputs (LVDS)
LCLKP and LCLKN Outputs (LVDS)(1)
Operating Free-Air Temperature, TA
(1) 6 × ADCLK.
ADS5273
MIN TYP MAX
3.0 3.3 3.6
3.0 3.3 3.6
20 70
1
2
35 70
210 420
−40 +85
UNIT
V
V
MSPS
V
V
MHz
MHz
°C
REFERENCE SELECTION
MODE
INT/EXT
2.0VPP Internal Reference
1
External Reference
0
DESCRIPTION
Default with internal pull-up.
Internal reference is powered down. Common mode of external reference should be within
50mV of VCM. VCM is derived from the internal bandgap voltage.
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Burr-Brown Corporation ADS5273
ADS5273
www.ti.com
SBAS305A − JANUARY 2004 − REVISED FEBRUARY 2004
ELECTRICAL CHARACTERISTICS
TMIN = −40°C, and TMAX = +85°C. Typical values are at TA = 25°C, clock frequency = maximum specified, 50% clock duty cycle, AVDD = 3.3V,
LVDD = 3.3V, −0.5dBFS, internal voltage reference, and LVDS buffer current at 3.5mA per channel, unless otherwise noted.
ADS5273
DC ACCURACY
PARAMETER
TEST CONDITIONS
MIN TYP MAX UNITS
No Missing Codes
Assured
DNL Differential Nonlinearity
TBD 0.5 TBD
LSB
INL Integral Nonlinearity
Midscale Offset Error(1)
TBD 1 TBD LSB
TBD
TBD
mV
www.DataSheet4U.com
Offset Temperature Coefficient
Fixed Gain Error(2)
Gain Temperature Coefficient
TBD
TBD
1.0
TBD
TBD
ppm/°C
%FS
%/°C
POWER SUPPLY
ICC Total Supply Current
I(AVDD) Analog Supply Current
I(LVDD) Digital Output Driver Supply Current
VIN = FS, FIN = 10MHz
VIN = FS, FIN = 10MHz
VIN = FS, FIN = 10MHz,
LVDS Into 100Load
333 mA
289 mA
44 mA
Power Dissipation
REFERENCE VOLTAGES
VIN = FS, FIN = 10MHz
1.1 W
VREFT
VREFN
VCM
VREFT
VREFB
Reference Top (internal)
Reference Bottom (internal)
Common-Mode Voltage
VCM Output Current
Reference Top (external)
Reference Bottom (external)
Reference Input Resistance(3)
1.875
2.0
1.0
1.5
TBD
TBD
1.125
V
V
V
mA
V
V
ANALOG INPUT
DC Differential Input Resistance
1.2 k
Differential Input Capacitance
7 pF
Analog Input Common-Mode Range
Differential Input Voltage Range
Voltage Overload Recovery Time
VCM ± 0.05
V
1.5 2.0 VPP
Differential Input Signal at 4VPP
Recovery to Within 1% of Code
4
CLK
Cycles
Input Bandwidth
−3dBFS
300 MHz
DIGITAL DATA OUTPUTS
Data Bit Rate
420 840 MBPS
SERIAL INTERFACE
SCLK Serial Clock Input Frequency
VIN LOW Input Low Voltage
VIN HIGH Input High Voltage
Input Current
Input Pin Capacitance
20
0 0.6
2.1 VDD
TBD
5
MHz
V
V
µA
pF
(1) Offset Error is the measured deviation of the midscale transition from the ideal midscale transition.
(2) Gain Error is the difference between the nominal and actual offset point on the transfer function after the offset error has been corrected to zero.
The gain point is the mid-step value when the digital output is full-scale.
(3) Average switching current drawn from external reference. DC component of current is internally generated even in external reference mode.
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