1FEATURES
23· Maximum Sample Rate: 70MSPS
· 12-Bit Resolution
· No Missing Codes
· Total Power Dissipation:
Internal Reference: 1W
External Reference: 937mW
· CMOS Technology
· Simultaneous Sample-and-Hold
· 71dBFS SNR at 5MHz 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
· TQFP-80 PowerPAD™ Package

APPLICATIONS
· Portable Ultrasound Systems
· Test Equipment
· Military

DESCRIPTION
The ADS5273 is a high-performance, CMOS,
70MSPS, 8-channel 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 (low-voltage differential signaling)
outputs reduce the number of interface lines and
package size.
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
eight 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 ADS5273 provides an internal reference, or can
optionally be driven with an external reference. Best
performance is 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.