1FEATURES
2• Single +3.3V Supply Operation
• Internal Sample-and-Hold and Internal
Reference
• Low Power Consumption
• Power Down Mode
• Clock and Data Frame Timing
• 780 Mbps Serial LVDS Data Rate (at 65 MHz
Clock)
• LVDS Serial Output Rated for 100 Ohm Load

KEY SPECIFICATIONS
• Resolution: 12 Bits
• DNL: ±0.3 LSB (Typ)
• SNR (fIN = 5 MHz): 69 dB (Typ)
• SFDR (fIN = 5 MHz): 83 dB (Typ)
• ENOB (at Nyquist): 11 Bits (Typ)
• Power Consumption
– Operating, 65 MSPS, per ADC: 200 mW
(Typ)
– Power Down Mode: < 3 mW (Typ)

APPLICATIONS
• Ultrasound
• Medical Imaging
• Communications
• Portable Instrumentation
• Digital Video

DESCRIPTION
The ADC12QS065 is a low power, high performance
CMOS 4-channel analog-to-digital converter with
LVDS serialized outputs. The ADC12QS065 digitizes
signals to 12 bits resolution at sampling rates up to
65 MSPS while consuming a typical 200 mW/ADC
from a single 3.3V supply. Sampled data is
transformed into high speed serial LVDS output data
streams. Clock and frame LVDS pairs aid in data
capture. The ADC12QS065’s six differential pairs
transmit data over backplanes or cable and also
make PCB design easier. In addition, the reduced
cable, PCB trace count, and connector size
tremendously reduce cost.
No missing codes performance is ensured over the
full operating temperature range. The pipeline ADC
architecture achieves 11 Effective Bits over the entire
Nyquist band at 65 MSPS.
When not converting, power consumption can be
reduced by pulling the PD (Power Down) pin high,
placing the converter into a low power state where it
typically consumes less than 3 mW total, and from
which recovery is less than 5 ms. The
ADC12QS065's speed, resolution and single supply
operation makes it well suited for a variety of
applications in ultrasound, imaging, video and
communications. Operating over the industrial (-40°C
to +85°C) temperature range, the ADC12QS065 is
available in a 60-pin WQFN package with exposed
pad (9x9x0.8mm, 0.5mm pin pitch).