描述The ADS7804 is a complete 12-bit sampling analog-to-digital (A/D) converter using state-of-the-art CMOS structures. It contains a complete 12-bit, capacitor-based, SAR A/D converter with S/H, reference, clock, interface for microprocessor use, and three-state output drivers. The ADS7804 is specified at a 100kHz sampling rate, and guaranteed over the full temperature range. Laser-trimmed scaling resistors provide an industry-standard ±10V input range, while the innovative design allows operation from a single +5V supply, with power dissipation under 100mW. The 28-pin ADS7804 is available in plastic 0.3" DIP and SO packages, both fully specified for operation over the industrial –40°C to +85°C range.特性100kHz min SAMPLING RATE STANDARD ±10V INPUT RANGE 72dB min SINAD WITH 45kHz INPUT ±0.45 LSB max INL DNL: 12 Bits "No Missing Codes" SINGLE +5V SUPPLY OPERATION PIN-COMPATIBLE WITH 16-BIT ADS7805 USES INTERNAL OR EXTERNAL REFERENCE COMPLETE WITH S/H, REF, CLOCK, ETC. FULL PARALLEL DATA OUTPUT 100mW max POWER DISSIPATION 28-PIN 0.3" PLASTIC DIP AND SO PACKAGESNote: Recommended Voltage Reference: REF02 and REF102