ADC12DS105 Datasheet, PDF (1/35 Pages) Texas Instruments – 105 MSPS A/D Converter

ADC12DS105
www.ti.com
SNAS382E – SEPTEMBER 2006 – REVISED APRIL 2013
ADC12DS105 Dual 12-Bit, 105 MSPS A/D Converter with Serial LVDS Outputs
Check for Samples: ADC12DS105
FEATURES
1
•2 Clock Duty Cycle Stabilizer
• Single +3.0 or 3.3V Supply Operation
• Serial LVDS Outputs
• Serial Control Interface
• Overrange Outputs
• 60-pin WQFN Package, (9x9x0.8mm, 0.5mm
pin-pitch)
APPLICATIONS
• High IF Sampling Receivers
• Wireless Base Station Receivers
• Test and Measurement Equipment
• Communications Instrumentation
• Portable Instrumentation
KEY SPECIFICATIONS
• Resolution: 12 Bits
• Conversion Rate: 105 MSPS
• SNR (f_IN = 240 MHz): 68.5 dBFS (typ)
• SFDR (f_IN = 240 MHz): 83 dBFS (typ)
• Full Power Bandwidth: 1 GHz (typ)
• Power Consumption: 1 W (typ)
DESCRIPTION
The ADC12DS105 is a high-performance CMOS
analog-to-digital converter capable of converting two
analog input signals into 12-bit digital words at rates
up to 105 Mega Samples Per Second (MSPS). The
digital outputs are serialized and provided on
differential LVDS signal pairs. This converter uses a
differential, pipelined architecture with digital error
correction and an on-chip sample-and-hold circuit to
minimize power consumption and the external
component count, while providing excellent dynamic
performance. The ADC12DS105 may be operated
from a single +3.0V or 3.3V power supply. A power-
down feature reduces the power consumption to very
low levels while still allowing fast wake-up time to full
operation. The differential inputs accept a 2V full
scale differential input swing. A stable 1.2V internal
voltage reference is provided, or the ADC12DS105
can be operated with an external 1.2V reference. The
selectable duty cycle stabilizer maintains
performance over a wide range of clock duty cycles.
A serial interface allows access to the internal
registers for full control of the ADC12DS105's
functionality. The ADC12DS105 is available in a 60-
lead WQFN package and operates over the industrial
temperature range of −40°C to +85°C
1
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2
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.
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