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PDF ADC0819BCV Data sheet ( Hoja de datos )
| Número de pieza | ADC0819BCV | |
| Descripción | 8-Bit Serial I/O A/D Converter with 19-Channel Multiplexer | |
| Fabricantes | National Semiconductor | |
| Logotipo |  |
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December 1994
ADC0819 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 con-
trols 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 provid-
ed to facilitate the interface to various microprocessors
Features
Y Separate asynchronous converter clock and serial data
I O clock
Y 19-Channel multiplexer with 5-Bit serial address logic
Y Built-in sample and hold function
Y Ratiometric or absolute voltage referencing
Y No zero or full-scale adjust required
Y Internally addressable test voltage
Y 0V to 5V input range with single 5V power supply
Y TTL MOS input output compatible
Y 28-pin molded chip carrier or 28-pin molded DIP
Key Specifications
Y Resolution
Y Total unadjusted error
Y Single supply
Y Low Power
Y Conversion Time
8-Bits
g LSB and g 1LSB
5VDC
15 mW
16 ms
Connection Diagrams Functional Diagram
Molded Chip Carrier (PCC) Package
TL H 9287–1
Top View
Order Number ADC0819BCV CCV
See NS Package Number V28A
Dual-In-Line Package
TL H 9287–20
Top View
Order Number ADC0819BCN CIN
See NS Package Number N28B
C1995 National Semiconductor Corporation TL H 9287
TL H 9287 – 2
RRD-B30M115 Printed in U S A
1 page  
Timing Diagrams (Continued)
D0 Low to High State
D0 High to Low State
TL H 9287 – 7
Data Input and Output Timing
TL H 9287 – 8
TL H 9287 – 9
Timing with a continuous SCLK
Strobing CS High and Low will abort the present conversion and initiate a new serial I O exchange
Timing with a gated SCLK and CS Continuously Low
TL H 9287 – 10
Using CS To TRI-STATE D0
TL H 9287 – 11
Note Strobing CS Low during this time interval will abort the conversion in process
5
TL H 9287 – 12
5 Page 
Physical Dimensions inches (millimeters)
Molded Dual-In-Line Package (N)
Order Number ADC0819BCN or ADC0819CIN
NS Package Number N28B
11
11 Page | ||
| Páginas | Total 12 Páginas | |
| PDF Descargar | [ Datasheet ADC0819BCV.PDF ] | |
Hoja de datos destacado
| Número de pieza | Descripción | Fabricantes |
| ADC0819BCN | 8-Bit Serial I/O A/D Converter with 19-Channel Multiplexer | National Semiconductor |
| ADC0819BCV | 8-Bit Serial I/O A/D Converter with 19-Channel Multiplexer | National Semiconductor |
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