ADC0819_09 Datasheet, PDF (1/16 Pages) National Semiconductor (TI) – 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 con-
verter 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 ref-
erence 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 V}_DC
■ ^{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
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© 2009 National Semiconductor Corporation 9287
9287 Version 2 Revision 4 Print Date/Time: 2009/08/26 15:48:51
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