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¡¡¡¡The AD7699 is an 8-channel£¬ 16-bit£¬ charge redistribution successive approximation register £¨SAR£© analog-to-digital converter £¨ADC£© that operates from a single power supply£¬ VDD. The AD7699 contains all components for use in a multichannel£¬ low power data acquisition system£¬ including a true 16-bit SAR ADC with no missing codes; an 8-channel low crosstalk multiplexer useful for configuring the inputs as single-ended £¨with or without ground sense£©£¬ differential£¬ or bipolar; an internal 4.096 V low drift reference and buffer; a temperature sensor; a selectable one-pole filter; and a sequencer that is useful when channels are continuously scanned in order. The AD7699 uses a simple serial port interface £¨SPI£© for writing to the configuration register and receiving conversion results. The SPI interface uses a separate supply£¬ VIO£¬ which is set to the host logic level. Power dissipation scales with throughput. The AD7699 is housed in a tiny 20-lead LFCSP and a 20-ball WLCSP with operation specified from ?40¡ãC to +85¡ãC.