16λ500kSPSµÄÂö³å²î·ÖÄ£Êýת»»Æ÷ad7688Êý¾Ý±í

¡¡¡¡The AD7688 is a 16-bit£¬ charge redistribution£¬ successive approximation£¬ analog-to-digital converter £¨ADC£© that operates from a single 5 V power supply£¬ VDD. It contains a low power£¬ high speed£¬ 16-bit sampling ADC with no missing codes£¬ an internal conversion clock£¬ and a versatile serial interface port. The part also contains a low noise£¬ wide bandwidth£¬ short aperture delay track-and-hold circuit. On the CNV rising edge£¬ it samples the voltage difference between IN+ and IN? pins. The voltages on these pins usually swing in opposite phase between 0 V and REF. The reference voltage£¬ REF£¬ is applied externally and can be set up to the supply voltage. Its power scales linearly with throughput. The SPI-compatible serial interface also features the ability£¬ using the SDI input£¬ to daisy-chain several ADCs on a single£¬ 3-wire bus and provides an optional BUSY indicator. It is compatible with 1.8 V£¬ 2.5 V£¬ 3 V£¬ or 5 V logic£¬ using the separate supply VIO. The AD7688 is housed in a 10-lead MSOP or a 10-lead LFCSP with operation specified from ?40¡ãC to +85¡ãC.