Texas Instruments ADS7250 Handleiding

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AINP

AINM

AINM

AINP

ADS7250,

ADS7850,

ADS8350

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AnIMPORTANTNOTICEattheendofthisdatasheetaddressesavailability,warranty,changes,useinsafety-criticalapplications,

intellectualpropertymattersandotherimportantdisclaimers.PRODUCTIONDATA.

ADS8350

,

ADS7850

,

ADS7250

SBAS580D–MAY2013–REVISEDMARCH2018

ADSxx50Dual,750-kSPS,16-,14-,and12-Bit,Simultaneous-Sampling,

Analog-to-DigitalConverters

1

1Features

1

•16-,14-,and12-BitPin-CompatibleFamily

•SimultaneouslySamplesTwoChannels

•Pseudo-DifferentialAnalogInputs

•FastThroughput:750kSPS

•ExcellentDCPerformance:

–Linearity:

–ADS8350:

16-BitNMCDNL,±2.5LSB,MaxINL

–ADS7850:

14-BitNMCDNL,±1.5LSB,MaxINL

–ADS7250:

12-BitNMCDNL,±1LSB,MaxINL

•ExcellentACPerformance:

–ADS8350:85-dBSNR,–96-dBTHD

–ADS7850:81-dBSNR,–90-dBTHD

–ADS7250:73-dBSNR,–88-dBTHD

•SimpleSerialInterface

•Fully-SpecifiedOverExtendedIndustrial

TemperatureRange:–40°Cto125°C

•SmallFootprint:WQFN-16(3mm×3mm)

2Applications

•MotorControl:

PositionMeasurementUsingSinCosEncoders

•OpticalNetworking:

EDFAGainControlLoop

•ProtectionRelays

•PowerQualityMeasurement

•Three-PhasePowerControls

•ProgrammableLogicControllers

•IndustrialAutomation

3Description

TheADS8350,ADS7850,andADS7250devices

belongtoafamilyofpin-compatible,dual,high-

speed,simultaneous-sampling,analog-to-digital

converters(ADCs)thatsupportpseudo-differential

analoginputs.Alldevicessupportasimpleserial

interfacethatcanoperateoverawidepower-supply

range,enablingeasycommunicationwithalarge

varietyofhostcontrollers.

Alldevicesarefullyspecifiedovertheextended

industrialtemperaturerange(–40°Cto125°C)and

areavailableinapin-compatible,WQFN-16(3mm×

3mm)package.

DeviceInformation

(1)

PARTNUMBERPACKAGEBODYSIZE(NOM)

ADS7250

WQFN(16)3.00mm×3.00mmADS7850

ADS8350

(1)Forallavailablepackages,seetheorderableaddendumat

theendofthedatasheet.

FunctionalBlockDiagram

Product specificaties