ADC0819

ADC0819 8-Bit Serial I/O A/D Converter with 19-Channel Multiplexer ADC0819 OBSOLETE September 26, 2009 8-Bit Serial I/O A/D Converter with 19-Channel Multiplexer General Description The ADC0819 is an 8-Bit successive approximation A/D converter with simultaneous serial I/O. The serial input controls an analog multiplexer which selects from 19 input channels or an internal half scale test voltage. An input sample-and-hold is implemented by a capacitive reference ladder and sampled data comparator. This allows the input signal to vary during the conversion cycle. Separate serial I/O and conversion clock inputs are provided to facilitate the interface to various microprocessors. Features ■ Separate asynchronous converter clock and serial data I/ O clock ■ 19-Channel multiplexer with 5-Bit serial address logic ■ Built-in sample and hold function ■ Ratiometric or absolute voltage referencing ■ No zero or full-scale adjust required ■ Internally addressable test voltage ■ 0V to 5V input range with single 5V power supply ■ TTL/MOS input/output compatible ■ 28-pin molded chip carrier or 28-pin molded DIP Key Specifications ■ Resolution: 8-Bits ■ Total unadjusted error: ± ½ LSB and ± 1 LSB ■ Single supply: 5 VDC ■ Low Power: 15 mW ■ Conversion Time: 16 μs Connection Diagrams Molded Chip Carrier (PCC) Package Dual-In-Line Package 928701 Top View Order Number ADC0819BCV, CCV See NS Package Number V28A 928720 Top View Order Number ADC0819BCN, CIN See NS Package Number N28B TRI-...