描述The ADS7824 can acquire and convert 12 bits to within ±0.5 LSB in 25µs max while consuming only 50mW max. Laser-trimmed scaling resistors provide the standard industrial ±10V input range and channel-to-channel matching of ±0.1%. The ADS7824 is a low-power 12-bit sampling A/D with a four channel input multiplexer, S/H, clock, reference, and a parallel/serial microprocessor interface. It can be configured in a continuous conversion mode to sequentially digitize all four channels. The 28-pin ADS7824 is available in a plastic 0.3" DIP and in a SOIC, both fully specified for operation over the industrial –40°C to +85°C range.特性25µs max SAMPLING AND CONVERSION SINGLE +5V SUPPLY OPERATION PIN-COMPATIBLE WITH 16-BIT ADS7825 PARALLEL AND SERIAL DATA OUTPUT 28-PIN 0.3" PLASTIC DIP AND SOIC ±0.5 LSB max INL AND DNL 50mW max POWER DISSIPATION 50µW POWER DOWN MODE ±10V INPUT RANGE, FOUR CHANNEL MULTIPLEXER CONTINUOUS CONVERSION MODENote: Recommended Voltage Reference: REF02 and REF102