Motor de Búsqueda de Datasheet de Componentes Electrónicos
  Spanish  ▼
ALLDATASHEET.ES

X  

ADC0819BCV Datasheet(PDF) 9 Page - National Semiconductor (TI)

[Old version datasheet] Texas Instruments acquired National semiconductor.
No. de pieza ADC0819BCV
Descripción Electrónicos  8-Bit Serial I/O A/D Converter with 19-Channel Multiplexer
Download  12 Pages
Scroll/Zoom Zoom In 100%  Zoom Out
Fabricante Electrónico  NSC [National Semiconductor (TI)]
Página de inicio  http://www.national.com
Logo NSC - National Semiconductor (TI)

ADC0819BCV Datasheet(HTML) 9 Page - National Semiconductor (TI)

Back Button ADC0819BCV Datasheet HTML 4Page - National Semiconductor (TI) ADC0819BCV Datasheet HTML 5Page - National Semiconductor (TI) ADC0819BCV Datasheet HTML 6Page - National Semiconductor (TI) ADC0819BCV Datasheet HTML 7Page - National Semiconductor (TI) ADC0819BCV Datasheet HTML 8Page - National Semiconductor (TI) ADC0819BCV Datasheet HTML 9Page - National Semiconductor (TI) ADC0819BCV Datasheet HTML 10Page - National Semiconductor (TI) ADC0819BCV Datasheet HTML 11Page - National Semiconductor (TI) ADC0819BCV Datasheet HTML 12Page - National Semiconductor (TI)  
Zoom Inzoom in Zoom Outzoom out
 9 / 12 page
background image
Functional Description (Continued)
at least 32 w2 clocks to ensure that the AD has completed
its conversion If SCLK is enabled sooner synchronizing to
the data output on DO is not possible since an end of con-
version signal from the AD is not available and the actual
conversion time is not known With CS low during the con-
version time (32 w2 max) DO will go high or low after the
eighth falling edge of SCLK until the conversion is complet-
ed Once the conversion is through DO will transmit the
MSB The rest of the data will be shifted out once SCLK is
enabled as discussed previously
If CS goes high during the conversion sequence DO is tri-
stated and the result is not affected so long as CS remains
high until the end of the conversion
12 MULTIPLEXER ADDRESSING
The five bit mux address is shifted MSB first into DI Input
data corresponds to the channel selected as shown in table
1 Care should be taken not to send an address greater than
or equal to twenty four (11XXX) as this puts the AD in a
digital testing mode In this mode the analog inputs CH0
thru CH4 become digital outputs for our use in production
testing
20 ANALOG INPUT
21 THE INPUT SAMPLE AND HOLD
The ADC0819’s samplehold capacitor is implemented in its
capacitive ladder structure After the channel address is re-
ceived the ladder is switched to sample the proper analog
input This sampling mode is maintained for 1 msec after the
eighth SCLK falling edge The hold mode is initiated with the
start of the conversion process An acquisition window of
3tSCLKa1 msec is therefore available to allow the ladder
capacitance to settle to the analog input voltage Any
change in the analog voltage before or after the acquisition
window will not effect the AD conversion result
In the most simple case the ladder’s acquisition time is de-
termined by the Ron (3K) of the multiplexer switches and the
total ladder capacitance (90pf) These values yield an acqui-
sition time of about 2 msec for a full scale reading There-
fore the analog input must be stable for at least 2 msec
before and 1 msec after the eighth SCLK falling edge to
ensure a proper conversion External input source resist-
ance and capacitance will lengthen the acquisition time and
should be accounted for
Other conventional sample and hold error specifications are
included in the error and timing specs of the AD The hold
step and gain error samplehold specs are taken into ac-
count in the ADC0819’s total unadjusted error while the
hold settling time is included in the AD’s max conversion
time of 32 w2 clock periods The hold droop rate can be
thought of as being zero since an unlimited amount of time
can pass between a conversion and the reading of data
However once the data is read it is lost and another conver-
sion is started
Typical Applications
ADC0819-INS8048 INTERFACE
TLH9287 – 18
9


Número de pieza similar - ADC0819BCV

Fabricante ElectrónicoNo. de piezaDatasheetDescripción Electrónicos
logo
National Semiconductor ...
ADC0819BCV NSC-ADC0819BCV Datasheet
694Kb / 16P
   8-Bit Serial I/O A/D Converter with 19-Channel Multiplexer
More results

Descripción similar - ADC0819BCV

Fabricante ElectrónicoNo. de piezaDatasheetDescripción Electrónicos
logo
National Semiconductor ...
ADC0819 NSC-ADC0819_09 Datasheet
694Kb / 16P
   8-Bit Serial I/O A/D Converter with 19-Channel Multiplexer
ADC0811 NSC-ADC0811 Datasheet
323Kb / 14P
   8-Bit Serial I/O A/D Converter With 11-Channel Multiplexer
ADC0833 NSC-ADC0833 Datasheet
316Kb / 20P
   8-Bit Serial I/O A/D Converter with 4-Channel Multiplexer
ADC1038 NSC-ADC1038 Datasheet
551Kb / 13P
   10-Bit Serial I/O A/D Converter with Analog Multiplexer
logo
Texas Instruments
ADC0831-N TI-ADC0831-N Datasheet
2Mb / 40P
[Old version datasheet]   8-Bit Serial I/O A/D Converters with Multiplexer Options
logo
Micro Linear Corporatio...
ML2281 MICRO-LINEAR-ML2281 Datasheet
410Kb / 26P
   Serial I/O 8-Bit A/D Converters with Multiplexer Options
logo
National Semiconductor ...
ADC0831 NSC-ADC0831 Datasheet
755Kb / 33P
   8-Bit Serial I/O A/D Converters with Multiplexer Options
logo
Texas Instruments
ADCV08832 TI1-ADCV08832 Datasheet
304Kb / 16P
[Old version datasheet]   8-Bit Serial I/O CMOS A/D Converter
logo
Linear Technology
LTC1598 LINER-LTC1598 Datasheet
134Kb / 12P
   8-Channel, Micropower Sampling 12-Bit Serial I/O A/D Converter
logo
Toshiba Semiconductor
TC35080P TOSHIBA-TC35080P Datasheet
730Kb / 11P
   10-BIT SERIAL I/O A/D CONVERTER
More results


Html Pages

1 2 3 4 5 6 7 8 9 10 11 12


Datasheet Descarga

Go To PDF Page


Enlace URL




Política de Privacidad
ALLDATASHEET.ES
¿ALLDATASHEET es útil para Ud.?  [ DONATE ] 

Todo acerca de Alldatasheet   |   Publicidad   |   Contáctenos   |   Política de Privacidad   |   Intercambio de Enlaces   |   Lista de Fabricantes
All Rights Reserved©Alldatasheet.com


Mirror Sites
English : Alldatasheet.com  |   English : Alldatasheet.net  |   Chinese : Alldatasheetcn.com  |   German : Alldatasheetde.com  |   Japanese : Alldatasheet.jp
Russian : Alldatasheetru.com  |   Korean : Alldatasheet.co.kr  |   Spanish : Alldatasheet.es  |   French : Alldatasheet.fr  |   Italian : Alldatasheetit.com
Portuguese : Alldatasheetpt.com  |   Polish : Alldatasheet.pl  |   Vietnamese : Alldatasheet.vn
Indian : Alldatasheet.in  |   Mexican : Alldatasheet.com.mx  |   British : Alldatasheet.co.uk  |   New Zealand : Alldatasheet.co.nz
Family Site : ic2ic.com  |   icmetro.com