Texas Instruments ADS1174 Handleiding
Pagina's 40 Niet gecategoriseerd
Bekijk de handleiding van Texas Instruments ADS1174 gratis online of download de PDF. Deze handleiding is 16 keer bekeken. Vraag over dit model? Stel een vraag
ADS1174
ADS1178
1
FEATURESDESCRIPTION
APPLICATIONS
VREFPVREFNAVDDDVDD
TEST[1:0]
FORMAT[2:0]
CLK
SYNC
PWDN[8:1]
CLKDIV
Control
Logic
SPI
and
Frame-
Sync
Interface
IOVDD
DGNDAGND
DRDY/FSYNC
SCLK
DOUT[8:1]
DIN
Input2
Input1
Input4
Input3
Input6
Input5
Input8
Input7
DS
DS
DS
DS
DS
DS
DS
DS
PWDN[4:1]
ADS1178
Four
Digital
Filters
AVDDDVDD
TEST[1:0]
FORMAT[2:0]
CLK
SYNC
CLKDIV
Control
Logic
SPI
and
Frame-
Sync
Interface
IOVDD
DGNDAGND
DRDY/FSYNC
SCLK
DOUT[4:1]
DIN
ADS1174
MODE
MODE
Eight
Digital
Filters
VREFPVREFN
Input2
Input1
Input4
Input3
DS
DS
DS
DS
ADS1174
ADS1178
www.ti.com
........................................................................................................................................SBAS373B–OCTOBER2007–REVISEDSEPTEMBER2008
Quad/Octal,SimultaneousSampling,16-BitAnalog-to-DigitalConverters
234
•SimultaneouslySampleFour/EightChannels
TheADS1174(quad)andADS1178(octal)are
multipledelta-sigma(ΔΣ)analog-to-digitalconverters
•SelectableOperatingModes:
(ADCs)withdataratesupto52ksamples-per-second
High-Speed:52kSPSDataRate,31mW/ch
(SPS),whichallowsynchronoussamplingoffourand
Low-Power:10kSPSDataRate,7mW/ch
eightchannels.Thesedevicesuseidentical
•ACPerformance:
packages,andarealsocompatiblewiththe
25kHzBandwidth
high-performance24-bitADS1274andADS1278,
97dBSNR
permittingdrop-inupgrades.
–105dBTHD
Thedelta-sigmaarchitectureoffersnearideal16-bit
•DCPerformance:
acperformance(97dBSNR,–105dBTHD,1LSB
2µV/°COffsetDrift
linearity)combinedwith0.005dBpassbandrippleand
2ppm/°CGainDrift
linearphaseresponse.
•DigitalFilter:
Thehigh-order,chopper-stabilizedmodulator
LinearPhaseResponse
achievesverylowdrift(2µV/°Coffset,2ppm/°Cgain)
PassbandRipple:±0.005dB
andlownoise(1LSB
PP
).Theon-chipfiniteimpulse
StopBandAttenuation:100dB
response(FIR)filterprovidesausablesignal
bandwidthupto90%oftheNyquistratewith100dB
•SelectableSPI™orFrameSyncSerial
ofstopbandattenuationwhilesuppressingmodulator
Interface
andsignalout-of-bandnoise.
•SimplePin-DrivenControl
Twooperatingmodesallowforoptimizationofspeed
•LowSamplingApertureError
andpower:High-speedmode(31mW/Chat52kSPS),
•Specifiedfrom–40°Cto+105°C
andLow-powermode(7mW/Chat10kSPS).
•AnalogSupply:5V
ASYNCinputcontrolpinallowsthedevice
•I/OSupply:1.8Vto3.3V
conversionstobestartedandsynchronizedtoan
•DigitalCoreSupply:1.8V
externalevent.SPIandFrame-Syncserialinterfaces
aresupported.Thedeviceisfullyspecifiedoverthe
extendedindustrialrange(–40°Cto+105°C)andis
availableinanHTQFP-64PowerPAD™package.
•3-PhasePowerMonitors
•DefibrillatorsandECGMonitors
•CoriolisFlowMeters
•Vibration/ModalAnalysis
1
Pleasebeawarethatanimportantnoticeconcerningavailability,standardwarranty,anduseincriticalapplicationsofTexas
Instrumentssemiconductorproductsanddisclaimerstheretoappearsattheendofthisdatasheet.
2PowerPADisatrademarkofTexasInstruments.
3SPIisatrademarkofMotorola,Inc.
4Allothertrademarksarethepropertyoftheirrespectiveowners.
PRODUCTIONDATAinformationiscurrentasofpublicationdate.
Copyright©2007–2008,TexasInstrumentsIncorporated
ProductsconformtospecificationsperthetermsoftheTexas
Instrumentsstandardwarranty.Productionprocessingdoesnot
necessarilyincludetestingofallparameters.
Product specificaties
| Merk: | Texas Instruments |
| Categorie: | Niet gecategoriseerd |
| Model: | ADS1174 |
Heb je hulp nodig?
Als je hulp nodig hebt met Texas Instruments ADS1174 stel dan hieronder een vraag en andere gebruikers zullen je antwoorden