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ADC12081 fiches techniques PDF

National Semiconductor - 12-Bit/ 5 MHz Self-Calibrating/ Pipelined A/D Converter

Numéro de référence ADC12081
Description 12-Bit/ 5 MHz Self-Calibrating/ Pipelined A/D Converter
Fabricant National Semiconductor 
Logo National Semiconductor 





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ADC12081 fiche technique
March 2000
ADC12081
12-Bit, 5 MHz Self-Calibrating, Pipelined A/D Converter
with Internal Sample & Hold
General Description
The ADC12081 is a monolithic CMOS analog-to-digital con-
verter capable of converting analog input signals into 12-bit
digital words at 5 megasamples per second (MSPS). The
ADC12081 utilizes an innovative pipeline architecture to
minimize die size and power consumption. The ADC12081
uses self-calibration and error correction to maintain accu-
racy and performance over temperature.
The ADC12081 converter operates on a 5V power supply
and can digitize analog input signals in the range of 0 to 2V.
A single convert clock controls the conversion operation. All
digital I/O is TTL compatible.
The ADC12081 is designed to minimize external compo-
nents necessary for the analog input interface. An internal
sample-and-hold circuit samples the analog input and an in-
ternal amplifier buffers the reference voltage input.
The ADC12081 is available in the 32-lead TQFP package
and is designed to operate over the extended commercial
temperature range of -40˚C to +85˚C.
Features
n Single 5V power supply
n Simple analog input interface
n Internal Sample-and-hold
n Internal Reference buffer amplifier
n Low power consumption
Key Specifications
n Resolution
n Conversion Rate
n DNL
n SNR
n ENOB
n Analog Input Range
n Supply Voltage
n Power Consumption, 5 MHz
Applications
n Image processing front end
n PC-based data acquisition
n Scanners
n Fax machines
n Waveform digitizer
12 Bits
5 Msps (min)
±0.35 LSB (typ)
68 dB (typ)
10.9 Bits (typ)
2 Vpp (min)
+5V ±5%
105 mW (typ)
Connection Diagram
TRI-STATE® is a registered trademark of National Semiconductor Corporation. CN
© 2000 National Semiconductor Corporation DS100150
DS100150-1
www.national.com

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