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Successive Approximation Register and Control Logic

Clock

BUSY

Comparator

BYTE

CS

R/C

CDAC

Buffer

REF

CAP

± 10 V Input

2 kΩ

25.67 kΩ

7 kΩ

Internal

+4.096 V Ref

4 kΩ

Output

Latches

and

Three

State

Drivers

Three

State

Parallel

Data

Bus

ADS8515

www.ti.com

SLAS460D–JUNE2007–REVISEDSEPTEMBER2010

16-Bit250-kSPSSamplingCMOSANALOG-TO-DIGITALCONVERTER

CheckforSamples:ADS8515

1

FEATURES

DESCRIPTION

2

•Standard±10-VInputRange

TheADS8515isacomplete16-bitsampling

analog-to-digital(A/D)converterusingstate-of-the-art

•90-dBMinSNRwith20-kHzInput

CMOSstructures.Itcontainsacomplete16-bit,

•±2.0LSBMaxINL

capacitor-based,SARA/Dconverterwithsampleand

•±1LSBMaxDNL,16Bits,NoMissingCode

hold(S/H),reference,clock,interfacefor

•5-VAnalogSupply,FlexibleI/OSupplyVoltagemicroprocessoruse,and3-stateoutputdrivers.

at1.65Vto5.25V

TheADS8515isspecifiedata250-kHzsamplingrate

•Pin-CompatiblewithADS7805/10(LowSpeed),

overthefulltemperaturerange.Precisionresistors

and12-BitADS7804/8504

provideanindustrystandard±10-Vinputrange,while

theinnovativedesignallowsoperationfromasingle

•UsesInternalorExternalReference

+5-Vsupply,withpowerdissipationunder100mW.

•FullParallelDataOutput

TheADS8515isavailableina28-pinSSOPpackage

•100-mWTypPowerDissipationat250kSPS

andisfullyspecifiedforoperationovertheindustrial

•28-PinSSOPPackage

–40°Cto85°Ctemperaturerange.

APPLICATIONS

•IndustrialProcessControl

•DataAcquisitionSystems

•DigitalSignalProcessing

•MedicalEquipment

•Instrumentation

1

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ProductsconformtospecificationsperthetermsoftheTexas

Instrumentsstandardwarranty.Productionprocessingdoesnot

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