ADC12QS065_14 Datasheet, PDF (1/33 Pages) Texas Instruments – Quad 12-Bit 65 MSPS A/D Converter with LVDS Serialized Outputs

ADC12QS065
www.ti.com
SNOSAD6H – JULY 2005 – REVISED MARCH 2007
ADC12QS065 Quad 12-Bit 65 MSPS A/D Converter with
LVDS Serialized Outputs
Check for Samples: ADC12QS065
FEATURES
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•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
APPLICATIONS
• Ultrasound
• Medical Imaging
• Communications
• Portable Instrumentation
• Digital Video
KEY SPECIFICATIONS
• Resolution: 12 Bits
• DNL: ±0.3 LSB (Typ)
• SNR (f_IN = 5 MHz): 69 dB (Typ)
• SFDR (f_IN = 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)
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 guaranteed 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).
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PRODUCTION DATA information is current as of publication date.
Products conform to specifications per the terms of the Texas
Instruments standard warranty. Production processing does not
necessarily include testing of all parameters.
Copyright © 2005–2007, Texas Instruments Incorporated