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Посмотрите, м.б. будет интересно.
100kHz SAMPLING RATE 12-BIT ADC
8 ANALOG INPUT CHANNELS
THREE 12-BIT DACS
NINE OPERATIONAL AMPLIFIERS
THERMISTOR CURRENT SOURCE
INTERNAL 2.5V REFERENCE
SPI SERIAL INTERFACE
3V LOGIC COMPATIBLE
SINGLE +5V SUPPLY
LOW POWER: 40mW
TQFP-48 PACKAGE
http://focus.ti.com/docs/prod/productfolder.jhtml?genericPartNumber=AMC7820
E-mail: info@telesys.ru