描述The ADS7817 is a 12-bit, 200kHz sampling Analog-to-Digital (A/D) converter that features a high impedance fully differential analog input. The reference voltage can be varied from 100mV to 2.5V, with a corresponding input-referred resolution between 49uV and 1.22mV. The differential input, low power, automatic power down, and small size make the ADS7817 ideal for direct connection to transducers in battery operated systems, remote data acquisition, or multi-channel applications. The ADS7817 is available in a plastic mini-DIP-8, an SO-8, or an MSOP-8 package.特性BIPOLAR INPUT RANGE TRUE DIFFERENTIAL INPUT 200kHz SAMPLING RATE MICRO POWER: 2.3mW at 200kHz POWER DOWN: 3uA Max AVAILABLE IN MSOP-8 PACKAGE SERIAL INTERFACE AC COMMON-MODE REJECTION APPLICATIONS TRANSDUCER INTERFACE BATTERY OPERATED SYSTEMS REMOTE DATA ACQUISITION ISOLATED DATA ACQUISITION AC MOTOR CONTROL