Texas Instruments ADS1204 Handleiding
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CH A+
CH A-
REFIN A
CH B+
CH B-
REFIN B
CH C+
CH C-
REFIN C
CH D+
CH D-
REFIN D
REFOUT
2nd-Order
¨™ Modulator
2nd-Order
¨™ Modulator
2nd-Order
¨™ Modulator
2nd-Order
¨™ Modulator
Reference
Voltage
2.5 V
Divider
Clock
Select
RC
Oscillator
20 MHz
OutEN
Output
Interface
Circuit
OUT A
OUT B
OUT C
CLKOUT
AGNDBGND
AV
DD
BV
DD
+
±
+
±
+
±
+
±
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AnIMPORTANTNOTICEattheendofthisdatasheetaddressesavailability,warranty,changes,useinsafety-criticalapplications,
intellectualpropertymattersandotherimportantdisclaimers.PRODUCTIONDATA.
ADS1204
SBAS301D–OCTOBER2003–REVISEDFEBRUARY2020
ADS1204Four1-Bit,10-MHz,2nd-Order,Delta-SigmaModulators
1
1Features
1
•16-bitresolution
•14-bitlinearity
•Resolution,speedtrade-off:
10-biteffectiveresolutionwith10-µssignaldelay
(12-bitwith19µs)
•±2.5-Vinputrangeat2.5V
•Internalreferencevoltage:2%
•Gainerror:0.5%
•Fourindependentdelta-sigmamodulators
•Fourinputreferencebuffers
•Onboard20-MHzoscillator
•Selectableinternalorexternalclock
•Operatingtemperaturerange:
–40°Cto+105°C
•Package:VQFN-32(5mm×5mm)
2Applications
•Motorcontrols
•Currentmeasurement
•Industrialprocesscontrols
•Smarttransmitters
•Weightscales
•Pressuretransducers
•Portableinstruments
•Instrumentation
3Description
TheADS1204isafour-channel,high-performance
device,withfourdelta-sigma(ΔΣ)modulatorswith
100-dBdynamicrange,operatingfromasingle5-V
supply.Thedifferentialinputsareidealfordirect
connectiontotransducersinanindustrial
environment.Withtheappropriatedigitalfilterand
modulatorrate,thedevicecanbeusedtoachieve
16-bitanalog-to-digital(A/D)conversionwithno
missingcode.Effectiveresolutionof12bitscanbe
obtainedwithadigitalfilterdatarateof160kHzata
modulatorrateof10MHz.TheADS1204isdesigned
foruseinmedium-tohigh-resolutionmeasurement
applicationsincludingcurrentmeasurements,smart
transmitters,industrialprocesscontrol,weightscales,
chromatography,andportableinstrumentation.Itis
availableinaVQFN-32(5×5)package.
DeviceInformation
(1)
PARTNUMBERPACKAGEBODYSIZE(NOM)
ADS1204VQFN(32)5.00mm×5.00mm
(1)Forallavailablepackages,seetheorderableaddendumat
theendofthedatasheet.
FunctionalBlockDiagram
Product specificaties
| Merk: | Texas Instruments |
| Categorie: | Niet gecategoriseerd |
| Model: | ADS1204 |
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