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

X  

ADS7818E250 Datasheet(PDF) 11 Page - Texas Instruments

No. de pieza ADS7818E250
Descripción Electrónicos  12-Bit High Speed Low Power Sampling ANALOG-TO-DIGITAL CONVERTER
Download  21 Pages
Scroll/Zoom Zoom In 100%  Zoom Out
Fabricante Electrónico  TI [Texas Instruments]
Página de inicio  http://www.ti.com
Logo TI - Texas Instruments

ADS7818E250 Datasheet(HTML) 11 Page - Texas Instruments

Back Button ADS7818E250 Datasheet HTML 7Page - Texas Instruments ADS7818E250 Datasheet HTML 8Page - Texas Instruments ADS7818E250 Datasheet HTML 9Page - Texas Instruments ADS7818E250 Datasheet HTML 10Page - Texas Instruments ADS7818E250 Datasheet HTML 11Page - Texas Instruments ADS7818E250 Datasheet HTML 12Page - Texas Instruments ADS7818E250 Datasheet HTML 13Page - Texas Instruments ADS7818E250 Datasheet HTML 14Page - Texas Instruments ADS7818E250 Datasheet HTML 15Page - Texas Instruments Next Button
Zoom Inzoom in Zoom Outzoom out
 11 / 21 page
background image
11
®
ADS7818
Table II offers a look at the two different modes of operation
and the difference in power consumption.
the conversion will terminate immediately, before all 12-bits
have been decided. This can be a very useful feature when
a resolution of 12-bits is not needed. An example would be
when the converter is being used to monitor an input voltage
until some condition is met. At that time, the full resolution
of the converter would then be used. Short-cycling the
conversion can result in a faster conversion rate or lower
power dissipation.
There are several very important items shown in Figure 6.
The conversion currently in progress is terminated when
CONV is taken HIGH during the conversion and then taken
LOW prior to tCKCH before the start of the 13th clock cycle.
Note that if CONV goes LOW during the 13th clock cycle,
then the LSB first mode will be entered (Figure 5). Also,
when CONV goes LOW, the DATA output immediately
transitions to high impedance. If the output bit that is present
during that clock period is needed, CONV must not go LOW
until the bit has been properly latched into the receiving
logic.
DATA FORMAT
The ADS7818 output data is in straight binary format as
shown in Figure 7. This figure shows the ideal output code
for the given input voltage and does not include the effects
of offset, gain, or noise.
POWER WITH
POWER WITH
fSAMPLE
CLK = 16 • fSAMPLE
CLK = 8MHz
500kHz
11mW
11mW
250kHz
10mW
7mW
100kHz
9mW
4mW
TABLE II. Power Consumption versus CLK Input.
LSB FIRST DATA TIMING
Figure 5 shows a method to transmit the digital result in a
least-significant bit (LSB) format. This mode is entered
when CONV is pulled HIGH during the conversion (before
the end of the 12th clock) and then pulled LOW during the
13th clock (when D0, the LSB, is being transmitted). The
next 11 clocks then repeat the serial data, but in an LSB first
format. The converter enters the power-down mode during
the 13th clock and resumes normal operation when CONV
goes HIGH.
SHORT-CYCLE TIMING
The conversion currently in progress can be “short-cycled”
with the technique shown in Figure 6. This term means that
FIGURE 6. Short-cycle Timing.
D11
(MSB)
DATA
CONVERSION IN PROGRESS
IDLE
IDLE
CLK
CONV
POWER MODE
FULL POWER
LOW POWER
D10
D8
D9
D7
12
3
5
46
7
D6
INTERNAL
CONVERSION
STATE
t
CVDD
t
CVL
t
CVH
HOLD
SAMPLE
SAMPLE/HOLD
MODE
NOTE: (1) The conversion currently in progress can be stopped by pulling CONV LOW during the conversion. This must occur at
least t
CKCS prior to the start of the 13th clock cycle. The DATA output pin will tri-state and the device will enter the power-down
mode when CONV is pulled LOW.
(1)
t
CVPD


Número de pieza similar - ADS7818E250

Fabricante ElectrónicoNo. de piezaDatasheetDescripción Electrónicos
logo
Texas Instruments
ADS7818E250 TI-ADS7818E250 Datasheet
619Kb / 20P
[Old version datasheet]   12-Bit High Speed Low Power Sampling ANALOG-TO-DIGITAL CONVERTER
ADS7818E250 TI-ADS7818E250 Datasheet
436Kb / 16P
[Old version datasheet]   LOW-POWER 100-mA LOW-DROPOUT LINEAR REGULATORS
ADS7818E250G4 TI-ADS7818E250G4 Datasheet
619Kb / 20P
[Old version datasheet]   12-Bit High Speed Low Power Sampling ANALOG-TO-DIGITAL CONVERTER
ADS7818E250G4 TI-ADS7818E250G4 Datasheet
436Kb / 16P
[Old version datasheet]   LOW-POWER 100-mA LOW-DROPOUT LINEAR REGULATORS
More results

Descripción similar - ADS7818E250

Fabricante ElectrónicoNo. de piezaDatasheetDescripción Electrónicos
logo
Texas Instruments
ADS7835 TI1-ADS7835_14 Datasheet
840Kb / 21P
[Old version datasheet]   12-Bit, High-Speed, Low Power Sampling ANALOG-TO-DIGITAL CONVERTER
ADS7834 TI1-ADS7834_14 Datasheet
966Kb / 22P
[Old version datasheet]   12-Bit High-Speed, Low-Power Sampling ANALOG-TO-DIGITAL CONVERTER
logo
Burr-Brown (TI)
ADS7835 BURR-BROWN-ADS7835 Datasheet
169Kb / 13P
   12-Bit, High-Speed, Low Power Sampling ANALOG-TO-DIGITAL CONVERTER
ADS7834 BURR-BROWN-ADS7834 Datasheet
145Kb / 13P
   12-Bit High Speed Low Power Sampling ANALOG-TO-DIGITAL CONVERTER
logo
Texas Instruments
ADS7818PG4 TI-ADS7818PG4 Datasheet
619Kb / 20P
[Old version datasheet]   12-Bit High Speed Low Power Sampling ANALOG-TO-DIGITAL CONVERTER
logo
Burr-Brown (TI)
ADS7834 BURR-BROWN-ADS7834_13 Datasheet
931Kb / 20P
   12-Bit High-Speed, Low-Power Sampling ANALOG-TO-DIGITAL CONVERTER
logo
Texas Instruments
ADS7835E TI-ADS7835E Datasheet
824Kb / 20P
[Old version datasheet]   12-Bit, High-Speed, Low Power Sampling ANALOG-TO-DIGITAL CONVERTER
ADS7816U TI1-ADS7816U Datasheet
951Kb / 23P
[Old version datasheet]   12-Bit High Speed Micro Power Sampling ANALOG-TO-DIGITAL CONVERTER
logo
Burr-Brown (TI)
ADS7816 BURR-BROWN-ADS7816 Datasheet
226Kb / 13P
   12-Bit High Speed Micro Power Sampling ANALOG-TO-DIGITAL CONVERTER
logo
Texas Instruments
ADS7816P TI1-ADS7816P Datasheet
951Kb / 23P
[Old version datasheet]   12-Bit High Speed Micro Power Sampling ANALOG-TO-DIGITAL CONVERTER
More results


Html Pages

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21


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