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ADC12DL066 fiches techniques PDF

National Semiconductor - Dual 12-Bit/ 66Msps/ 450MHz Input Bandwidth A/D Converter w/Internal Reference

Numéro de référence ADC12DL066
Description Dual 12-Bit/ 66Msps/ 450MHz Input Bandwidth A/D Converter w/Internal Reference
Fabricant National Semiconductor 
Logo National Semiconductor 





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ADC12DL066 fiche technique
February 1, 2008
www.DataSheet4U.com
ADC12DL066
Dual 12-Bit, 66 Msps, 450 MHz Input Bandwidth A/D
Converter w/Internal Reference
General Description
The ADC12DL066 is a dual, low power monolithic CMOS
analog-to-digital converter capable of converting analog input
signals into 12-bit digital words at 66 Megasamples per sec-
ond (Msps), minimum. This converter uses a differential,
pipeline architecture with digital error correction and an on-
chip sample-and-hold circuit to minimize die size and power
consumption while providing excellent dynamic performance
and a 450 MHz Full Power Bandwidth. Operating on a single
3.3V power supply, the ADC12DL066 achieves 10.7 effective
bits and consumes just 686 mW at 66 Msps, including the
reference current. The Power Down feature reduces power
consumption to 75 mW.
The differential inputs provide a full scale differential input
swing equal to 2 times VREF with the possibility of a single-
ended input. Full use of the differential input is recommended
for optimum performance. The digital outputs from the two
ADCs are available on separate 12-bit buses with an output
data format choice of offset binary or two’s complement.
To ease interfacing to lower voltage systems, the digital out-
put driver power pins of the ADC12DL066 can be connected
to a separate supply voltage in the range of 2.4V to the digital
supply voltage.
This device is available in the 64-lead TQFP package and will
operate over the industrial temperature range of −40°C to
+85°C. An evaluation board is available to ease the evalua-
tion process.
Features
Choice of Binary or 2’s complement output format
Single +3.3V Supply Operation
Outputs 2.4V to 3.3V Compatible
Pin Compatible with ADC12D040
Power Down Mode
Internal/External Reference
Key Specifications
Resolution
DNL
SNR (fIN = 10 MHz)
SFDR (fIN = 10 MHz)
Data Latency
Power Consumption
Operating
Power Down Mode
12 Bits
±0.5 LSB (typ)
66 dB (typ)
81 dB (typ)
6 Clock Cycles
686 mW (typ)
75 mW (typ)
Applications
Ultrasound and Imaging
Instrumentation
Communications Receivers
Sonar/Radar
xDSL
Cable Modems
DSP Front Ends
Connection Diagram
TRI-STATE® is a registered trademark of National Semiconductor Corporation.
© 2008 National Semiconductor Corporation 200552
20055201
www.national.com

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