Texas Instruments ADC161S626 Handleiding

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CONTROLLER

VA

VIO

+IN

-IN

GNDGND

3-wireSPI

MCU

VIOindependent

ofVA

SAR

ADC

VREF

FullyDifferential

Input

WideSupply

Range

VREFindependent

ofVA

VIO

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ADC161S626

SNAS468D–SEPTEMBER2008–REVISEDDECEMBER2014

ADC161S62616-Bit,50to250kSPS,DifferentialInput,MicroPowerADC

1Features3Description

TheADC161S626isa16-bitsuccessive-

1

•16-bitResolutionWithNoMissingCodes

approximationregister(SAR)Analog-to-Digital

•EnsuredPerformancefrom50to250kSPS

converter(ADC)withamaximumsamplingrateof

•±0.003%SignalSpanAccuracy

250kSPS.TheADC161S626hasaminimumsignal

spanaccuracyof±0.003%overthetemperaterange

•SeparateDigitalInput/OutputSupply

of−40°Cto+85°C.Theconverterfeaturesa

•TrueDifferentialInput

differentialanaloginputwithanexcellentcommon-

•ExternalVoltageReferenceRangeof0.5VtoV

A

modesignalrejectionratioof85dB,makingthe

ADC161S626suitablefornoisyenvironments.

•Zero-PowerTrackModewith0-µsecWake-up

Delay

TheADC161S626operateswithasingleanalog

•WideInputCommon-modeVoltageRangeof0V

supply(V

A

)andaseparatedigitalinput/output(V

IO

)

toV

A

supply.V

A

canrangefrom4.5Vto5.5VandV

IO

can

rangefrom2.7Vto5.5V.Thisallowsasystem

•SPI/QSPI™/MICROWIRE™CompatibleSerial

designertomaximizeperformanceandminimize

Interface

powerconsumptionbyoperatingtheanalogportionof

•OperatingTemperatureRangeof−40°Cto+85°C

theADCataV

A

of5Vwhileinterfacingwitha3.3-V

•SmallVSSOP-10Package

controller.Theserialdataoutputisbinary2's

complementandisSPIcompatible.

•KeySpecifications

–ConversionRate50to250kSPS

TheperformanceoftheADC161S626isensured

overtemperatureatclockratesof1MHzto5MHz

–DNL+0.8/−0.5LSB

andreferencevoltagesof2.5Vto5.5V.The

–INL±0.8LSB

ADC161S626isavailableinasmall10-leadVSSOP

–OffsetErrorTempDrift2.5μV/°C

package.Thehighaccuracy,differentialinput,low

powerconsumption,andsmallsizemakethe

–GainErrorTempDrift0.3ppm/°C

ADC161S626idealfordirectconnectiontobridge

–SNR93.2dBc

sensorsandtransducersinbatteryoperatedsystems

–THD−104dBc

orremotedataacquisitionapplications.

–PowerConsumption

DeviceInformation

(1)

–10kSPS,5V0.24mW

PARTNUMBERPACKAGEBODYSIZE(NOM)

–200kSPS,5V5.3mW

ADC161S626VSSOP(10)3.00mm×3.00mm

–250kSPS,5V5.8mW

(1)Forallavailablepackages,seetheorderableaddendumat

–Power-Down,5V10μW

theendofthedatasheet.

2Applications

TypicalApplicationSchematic

•DirectSensorInterface

•I/OModules

•DataAcquisition

•PortableSystems

•MotorControl

•MedicalInstruments

•InstrumentationandControlSystems

1

AnIMPORTANTNOTICEattheendofthisdatasheetaddressesavailability,warranty,changes,useinsafety-criticalapplications,

intellectualpropertymattersandotherimportantdisclaimers.PRODUCTIONDATA.

Product specificaties