FEATURES
C0068 Maximum Sample Rate: 70MSPS
C0068 12-Bit Resolution
C0068 No Missing Codes
C0068 Power Dissipation: 1.1W
C0068 CMOS Technology
C0068 Simultaneous Sample-and-Hold
C0068 70.5dB SNR at 10MHz IF
C0068 Serialized LVDS Outputs Meet or Exceed the
Requirements of ANSI TIA/EIA-644-A
Standard
C0068 Internal and External References
C0068 3.3V Digital/Analog Supply
C0068 TQFP-80 PowerPAD Package
APPLICATIONS
C0068 Portable Ultrasound Systems
C0068 Tape Drives
C0068 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.
12−Bit
ADC
PLL
S/H Serializer
1X ADCLK
6X ADCLK
IN1
P
ADCLK
IN1
N
OUT1
P
OUT1
N
12−Bit
ADC
S/H Serializer
IN2
P
IN2
N
OUT2
P
OUT2
N
12−Bit
ADC
S/H Serializer
IN3
P
IN3
N
OUT3
P
OUT3
N
LCLK
P
LCLK
N
ADCLK
P
ADCLK
N
12−Bit
ADC
S/H Serializer
IN4
P
IN4
N
OUT4
P
OUT4
N
12−Bit
ADC
S/H Serializer
IN5
P
IN5
N
OUT5
P
OUT5
N
12−Bit
ADC
S/H Serializer
IN6
P
IN6
N
OUT6
P
OUT6
N
12−Bit
ADC
S/H Serializer
IN7
P
IN7
N
OUT7
P
OUT7
N
12−Bit
ADC
S/H Serializer
Reference
IN8
P
IN8
N
RE
F
T
INT/EXT
V
CM
RE
F
B
OUT8
P
OUT8
N
Registers
SC
L
K
SD
A
T
A
CS
Control
RE
S
E
T
PD
PRODUCT PREVIEW
ADS5273
SBAS305A − JANUARY 2004 − REVISED FEBRUARY 2004
8-Channel, 12-Bit, 70MSPS ADC
with Serialized LVDS Interface
C0080C0082C0079C0068C0085C0067C0084 C0080C0082C0069C0086C0073C0069C0087 C0105C0110C0102C0111C0114C0109C0097C0116C0105C0111C0110 C0099C0111C0110C0099C0101C0114C0110C0115 C0112C0114C0111C0100C0117C0099C0116C0115 C0105C0110 C0116C0104C0101 C0102C0111C0114C0109C0097C0116C0105C0118C0101 C0111C0114 C0100C0101C0115C0105C0103C0110
C0112C0104C0097C0115C0101 C0111C0102 C0100C0101C0118C0101C0108C0111C0112C0109C0101C0110C0116C0046 C0067C0104C0097C0114C0097C0099C0116C0101C0114C0105C0115C0116C0105C0099 C0100C0097C0116C0097 C0097C0110C0100 C0111C0116C0104C0101C0114 C0115C0112C0101C0099C0105C0102C0105C0099C0097C0116C0105C0111C0110C0115 C0097C0114C0101 C0100C0101C0115C0105C0103C0110
C0103C0111C0097C0108C0115C0046 C0084C0101C0120C0097C0115 C0073C0110C0115C0116C0114C0117C0109C0101C0110C0116C0115 C0114C0101C0115C0101C0114C0118C0101C0115 C0116C0104C0101 C0114C0105C0103C0104C0116 C0116C0111 C0099C0104C0097C0110C0103C0101 C0111C0114 C0100C0105C0115C0099C0111C0110C0116C0105C0110C0117C0101 C0116C0104C0101C0115C0101
C0112C0114C0111C0100C0117C0099C0116C0115 C0119C0105C0116C0104C0111C0117C0116 C0110C0111C0116C0105C0099C0101C0046
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Copyright  2004, Texas Instruments Incorporated
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.