Texas Instruments ADS8320 Handleiding

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SAR

Control

Serial

Interface

D

OUT

Comparator

S/H Amp

CS/SHDN

DCLOCK

+In

V

REF

±In

CDAC

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Reference

Design

AnIMPORTANTNOTICEattheendofthisdatasheetaddressesavailability,warranty,changes,useinsafety-criticalapplications,

intellectualpropertymattersandotherimportantdisclaimers.PRODUCTIONDATA.

ADS8320

SBAS108E–MAY2000–REVISEDDECEMBER2016

ADS832016-Bit,High-Speed,2.7-Vto5-VmicroPowerSampling

Analog-to-DigitalConverter

1

1Features

1

•100-kHzSamplingRate

•microPower:

–1.8mWat100kHzand2.7V

–0.3mWat10kHzand2.7V

•PowerDown:3µA(Maximum)

•8-PinVSSOPPackage

•Pin-CompatibletoADS7816andADS7822

•Serial(SPI™/SSI)Interface

2Applications

•Battery-OperatedSystems

•RemoteDataAcquisition

•IsolatedDataAcquisition

•SimultaneousSampling,MultichannelSystems

•IndustrialControls

•Robotics

•VibrationAnalysis

3Description

TheADS8320deviceisa16-bit,samplinganalog-to-

digital(A/D)converterwithensuredspecifications

overa2.7-Vto5.25-Vsupplyrange.Itrequiresvery

littlepowerevenwhenoperatingatthefull100-kHz

datarate.Atlowerdatarates,thehighspeedofthe

deviceenablesittospendmostofitstimeinthe

power-downmode.Theaveragepowerdissipationis

lessthan100mWat10-kHzdatarate.

TheADS8320alsofeaturesoperationfrom2Vto

5.25V,asynchronousserial(SPI/SSIcompatible)

interface,andadifferentialinput.Thereference

voltagecanbesettoanylevelwithintherangeof

500mVtoV

CC

.

Ultra-lowpowerandsmallsizemaketheADS8320

idealforportableandbattery-operatedsystems.Itis

alsoaperfectfitforremotedataacquisitionmodules,

simultaneousmulti-channelsystems,andisolated

dataacquisition.TheADS8320isavailableinan

8-pinVSSOPpackage.

DeviceInformation

(1)

PARTNUMBERPACKAGEBODYSIZE(NOM)

ADS8320VSSOP(8)3.00mm×3.00mm

(1)Forallavailablepackages,seetheorderableaddendumat

theendofthedatasheet.

BlockDiagram

Product specificaties