The AD7610 is a 16-bit charge redistribution successive approximation register （SAR）， architecture analog-to-digital converter （ADC） fabricated on Analog Devices， Inc.’s iCMOS high voltage process. The device is configured through hardware or via a dedicated write only serial configuration port for input range and operating mode. The AD7610 contains a high speed 16-bit sampling ADC， an internal conversion clock， an internal reference （and buffer）， error correction circuits， and both serial and parallel system interface ports. A falling edge on CNVST samples the analog input on IN+ with respect to a ground sense， IN?。 The AD7610 features four different analog input ranges： 0 V to 5 V， 0 V to 10 V， ±5 V， and ±10 V. Power consumption is scaled linearly with throughput. The device is available in Pb-free 48-lead， lowprofile quad flat package （LQFP） and a lead frame chip-scale （LFCSP_VQ） package. Operation is specified from ?40°C to +85°C.