描述The ADS8504 is a complete 12-bit sampling A/D converter using state-of-the-art CMOS structures. It contains a complete 12-bit, capacitor-based, SAR A/D with S/H, reference, clock, interface for microprocessor use, and 3-state output drivers.The ADS8504 is specified at a 250-kHz sampling rate over the full temperature range. Precision resistors provide an industry standard ±10-V input range, while the innovative design allows operation from a single +5-V supply, with power dissipation under 100 mW. The ADS8504 is available in a 28-pin SOIC package and is fully specified for operation over the industrial -40°C to 85°C temperature range.特性250-kHz Sampling RateStandard ±10-V InputRange73-dB SINAD With 45-kHz Input±0.45 LSB Max INL±0.45 LSB Max DNL 12 Bit No Missing Code±1 LSB Bipolar Zero Errors±0.4 PPM/°C Bipolar Zero Error DriftSingle 5-V Supply OperationPin-Compatible With ADS7804/05 (Low Speed) and 16-Bit ADS8505Uses Internal or External ReferenceFull Parallel Data Output70-mW Typ Power Dissipation at 250 KSPS28-Pin SOIC PackageAPPLICATIONSIndustrial Process ControlData Acquisition SystemsDigital Signal ProcessingMedical EquipmentInstrumentation