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MP8830 Datasheet(PDF) 1 Page - Exar Corporation

Part No. MP8830
Description  Triple 10-bit High Speed Analog-to-Digital Converter with Digitally Controlled References
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Maker  EXAR [Exar Corporation]
Homepage  http://www.exar.com
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MP8830 Datasheet(HTML) 1 Page - Exar Corporation

 
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MP8830
1
Rev. 1.00
Triple 10-bit High Speed
Analog-to-Digital Converter with
Digitally Controlled References
FEATURES
• 3 Independent 10-bit ADCs
• Simultaneous Sampling @ 1.25 MSPS
• Independent Digitally Controlled References
• 9-bit Positive Reference and 6-bit Negative
Reference Adjustment per Sample
• Low Power: 500mW (typ)
• Internal Track and Hold
• Single 5 V Supply
• Fast Mode for OCR
• A
IN Input Range: 1.3 V to 2.6 V p-p
• Black Level Clamp
• Latch-Up Free
• ESD Protection: 2000 V Minimum
BENEFITS
• Pixel-to-Pixel Correction
• Improves Effective Resolution over Software
Correction Schemes
• Reduced DSP/Processor Demands
• Reduction of Parts Count and System Cost
APPLICATIONS
• Precision CCD Systems
• Color and B&W Scanners
• Digital Copiers
• IR Cameras
GENERAL DESCRIPTION
The MP8830 is a simultaneous sampling 1.25 MSPS triple
10-bit A/D Converter. It provides pixel-to-pixel correction of CCD
or other inputs by updating gain and offset parameters supplied
from an external correction memory. Each ADC has a 9-bit DAC
driving its positive reference voltage and a 6-bit DAC driving its
negative reference to independently adjust the gain and offset of
each channel.
The MP8830 uses ADCs with a subranging architecture to
maintain low power consumption at high conversion rates. Our
proprietary comparator design achieves a low analog input ca-
pacitance and performs an on-chip sample and hold function.
The MP8830 uses proprietary high speed DACs to drive the
ADC references which allows reference adjustment on every
conversion at a 1.25 MHz rate. An internal clamp is available for
DC restoration of AIN black level.
The MP8830 operates from a single 5 V supply and an exter-
nal 1 V reference, and consumes only 500mW of power (typ).
Specified for operation over the temperature range 0 to 60
°C,
the MP8830 is available in a 64 lead Plastic Quad Flat Pack
(PQFP) package.
ORDERING INFORMATION
Package
Type
Temperature
Range
Part No.
PQFP
0 to +60
°C
MP8830AE


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