ADC0819 Datasheet | National Semiconductor

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 parator. 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 patible - 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 m W - Conversion Time: 16 μs Connection Diagrams Molded Chip Carrier (PCC) Package Dual-In-Line Package Top View Order Number ADC0819BCV, CCV See NS Package Number V28A Top View Order Number ADC0819BCN, CIN See NS Package Number N28B TRI-STATE® is a registered trademark of National Semiconductor Corporation. © 2009 National Semiconductor Corporation 9287 9287 Version 2 Revision 4 Print Date/Time: 2009/08/26 15:48:51 .national. Functional Diagram .national. 2 9287 Version 2 Revision 4 Print Date/Time: 2009/08/26 15:48:51 Absolute Maximum Ratings (Notes 1, 2) If Military/Aerospace specified devices are required, please contact the National Semiconductor Sales Office/ Distributors for availability and specifications. Supply Voltage (VCC) Voltage 6.5V Inputs and Outputs Input Current Per Pin (Note...