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5V单电源供电，8通道14位285kSPS采样ADC模数转换器AD7856数据表
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The AD7856 is a high speed， low power， 14-bit ADC that operates from a single 5 V power supply. The ADC powers up with a set of default conditions at which time it can be operated as a read only ADC. The ADC contains self-calibration and system calibration options to ensure accurate operation over time and temperature and it has a number of power-down options for low power applications. The AD7856 is capable of 285 kHz throughput rate. The input track-and-hold acquires a signal in 500 ns and features a pseudodifferential sampling scheme. The AD7856 voltage range is 0 to VREF with straight binary output coding. Input signal range is to the supply and the part is capable of converting full power signals to 10 MHz. CMOS construction ensures low power dissipation of typically 60 mW for normal operation and 5.1 mW in power-down mode at 10 kSPS throughput rate. The part is available in 24-lead， 0.3 inch-wide dual in-line package （DIP）， 24-lead small outline （SOIC） and 24-lead small shrink outline （SSOP） packages. Please see page 31 for data sheet index.
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