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ADS62C17IRGCR-ADS62C17IRGCT
Dual Channel 11 Bit, 200 MSPS ADC with SNRBoost 64-VQFN -40 to 85
1FEATURES
DESCRIPTION
ADS62C17
www.ti.com............................................................................................................................................................. SLAS631A–APRIL 2009–REVISED JULY 2009
Dual Channel 11 Bit, 200 MSPS ADC With SNRBoost Programmable Gain upto 6dB for SNR/SFDR
Trade-off•
Maximum Sample Rate: 200 MSPS DC Offset Correction•
11-bit Resolution with No Missing Codes Gain Tuning Capabilityin Fine Steps (0.001•
90 dBc SFDRat Fin= 10 MHz dB) Allows Channel-to-channel Gain Matching•
79.8 dBFS SNRat 125 MHz IF,20 MHz BW •
Supports Input Clock Amplitude Downto 400usingTI proprietary SNRBoost technology p-p Differential•
Total Power 1.1Wat 200 MSPS •
Internal and External Reference Support•
90 dB Cross-talk •
64-QFN Package(9 mm×9 mm)•
Double Data Rate (DDR) LVDS and Parallel
CMOS Output OptionsADS62C17isa dual channel 11-bit, 200 MSPS A/D converter that combines high dynamic performance and low
power consumptionina compact 64 QFN package. This makesit well-suited for multi-carrier, wide band-width
communications applications.
ADS62C17 uses TI-proprietary SNRBoost technology that can be usedto overcome SNR limitation dueto
quantization noise for bandwidths less than Nyquist (Fs/2).It includes several useful and commonly used digital
functions suchas ADC offset correction, gain(0to6 dBin stepsof 0.5 dB) and gain tuning(in fine stepsof 0.001
dB).
The gain option can be usedto improve SFDR performanceat lower full-scale input ranges. Using the gain
tuning capability, each channel’s gain can be set independentlyto improve channel-to-channel gain matching.
The device also includesadc offset correction loop that canbe usedto cancel the ADC offset.
Both DDR LVDS (Double Data Rate) and parallel CMOS digital output interfaces are available.It includes
internal references while the traditional reference pins and associated decoupling capacitors have been
eliminated. Nevertheless, the device can alsobe driven withan external reference.
The deviceis specified over the industrial temperature range (–40°Cto 85°C).
