Texas Instruments ADS8598S Handleiding
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AIN_1P
AIN_1GND
AIN_2P
AIN_2GND
AIN_7P
AIN_7GND
AIN_8P
AIN_8GND
18-Bit
SAR
ADC
2.5 V
REF
REFGND
AGND
DVDD
AVDD
ADS8598S
ADC
Driver
REFIN/REFOUT
REFCAPB
REFSEL
Digital Filter
OS2
OS0
OS1
SAR
Logic
and
Digital Control
DB[15:0]
DOUTA
DOUTB
PAR/SER
RANGE
RD / SCLK
CS
RESET
CONVSTA, CONVSTB
FRSTDATA
STBY
REFCAPA
BUSY
1 M:
Clamp
1 M:
3rd-Order
LPF
Clamp
PGA
ADC
Driver
1 M:
Clamp
1 M:
3rd-Order
LPF
Clamp
PGA
ADC
Driver
1 M:
Clamp
1 M:
3rd-Order
LPF
Clamp
PGA
ADC
Driver
1 M:
Clamp
1 M:
3rd-Order
LPF
Clamp
PGA
18-Bit
SAR
ADC
18-Bit
SAR
ADC
18-Bit
SAR
ADC
SER/PAR
Interface
Copyright © 2017, Texas Instruments Incorporated
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AnIMPORTANTNOTICEattheendofthisdatasheetaddressesavailability,warranty,changes,useinsafety-criticalapplications,
intellectualpropertymattersandotherimportantdisclaimers.PRODUCTIONDATA.
ADS8598S
SBAS827–SEPTEMBER2017
ADS8598S18-Bit,200-kSPS,8-Channel,Simultaneous-SamplingADCWith
BipolarInputsonaSingleSupply
1
1Features
1
•18-BitADCWithIntegratedAnalogFront-End
•SimultaneousSampling:8Channels
•Pin-ProgrammableBipolarInputs:±10Vand±5V
•HighInputImpedance:1MΩ
•5-VAnalogSupply:2.3-Vto5-VI/OSupply
•OvervoltageInputClampWith9-kVESD
•Low-Drift,On-ChipReference(2.5V)andBuffer
•ExcellentPerformance:
–200-kSPSMaxThroughputonAllChannels
–DNL:±0.5LSBTyp;INL:±2.0LSBTyp
–SNR:94dBTyp;THD:−109dBTyp
•OverTemperaturePerformance:
–MaxOffsetDrift:3ppm/°C
–GainDrift:6ppm/°C
•On-ChipDigitalFilterforOversampling
•FlexibleParallel,Byte,andSerialInterface
•TemperatureRange:–40°Cto+125°C
•Package:LQFP-64
2Applications
•MonitoringandControlforPowerGrids
•ProtectionRelays
•Multi-PhaseMotorControls
•IndustrialAutomationandControls
•MultichannelDataAcquisitionSystems
3Description
TheADS8598Sdeviceisan8-channel,integrated
dataacquisition(DAQ)systembasedona18-bit
successiveapproximation(SAR)analog-to-digital
converter(ADC).Allinputchannelsare
simultaneouslysampledtoachieveamaximum
throughputof200kSPSperchannel.Thedevice
featuresacompleteanalogfront-end(AFE)foreach
channel,includingaprogrammablegainamplifier
(PGA)withhighinputimpedanceof1MΩ,input
clamp,low-passfilter,andanADCinputdriver.The
devicealsofeaturesalow-drift,precisionreference
withabuffertodrivetheADC.Aflexibledigital
interfacesupportingserial,parallel,andparallelbyte
communicationenablesthedevicetobeusedwitha
varietyofhostcontrollers.
TheADS8598Scanbeconfiguredtoaccept±10-Vor
±5-Vtruebipolarinputsusingasingle5-Vsupply.
Thehighinputimpedanceallowsdirectconnection
withsensorsandtransformers,thuseliminatingthe
needforexternaldrivercircuits.Thehigh
performanceandaccuracy,alongwithzero-latency
conversionsofferedbythisdevice,alsomakesthe
ADS8598Sagreatchoiceformanyindustrial
automationandcontrolapplications.
DeviceInformation
(1)
PARTNUMBERPACKAGEBODYSIZE(NOM)
ADS8598SLQFP(64)10.00mm×10.00mm
(1)Forallavailablepackages,seetheorderableaddendumat
theendofthedatasheet.
SimplifiedBlockDiagram
2
ADS8598S
SBAS827–SEPTEMBER2017
www.ti.com
ProductFolderLinks:ADS8598S
SubmitDocumentationFeedbackCopyright©2017,TexasInstrumentsIncorporated
TableofContents
1Features..................................................................1
2Applications...........................................................1
3Description.............................................................1
4RevisionHistory.....................................................2
5PinConfigurationandFunctions.........................3
6Specifications.........................................................5
6.1AbsoluteMaximumRatings......................................5
6.2ESDRatings..............................................................5
6.3RecommendedOperatingConditions.......................6
6.4ThermalInformation..................................................6
6.5ElectricalCharacteristics...........................................7
6.6TimingRequirements:CONVSTControl................10
6.7TimingRequirements:DataReadOperation..........10
6.8TimingRequirements:ParallelDataReadOperation,
CSandRDTiedTogether.......................................10
6.9TimingRequirements:ParallelDataReadOperation,
CSandRDSeparate...............................................11
6.10TimingRequirements:SerialDataRead
Operation.................................................................11
6.11TimingRequirements:ByteModeDataRead
Operation.................................................................11
6.12TimingRequirements:OversamplingMode..........11
6.13TimingRequirements:ExitStandbyMode............11
6.14TimingRequirements:ExitShutdownMode.........12
6.15SwitchingCharacteristics:CONVSTControl........12
6.16SwitchingCharacteristics:ParallelDataRead
Operation,CSandRDTiedTogether.....................12
6.17SwitchingCharacteristics:ParallelDataRead
Operation,CSandRDSeparate.............................13
6.18SwitchingCharacteristics:SerialDataRead
Operation.................................................................13
6.19SwitchingCharacteristics:ByteModeDataRead
Operation.................................................................14
6.20TypicalCharacteristics..........................................18
7DetailedDescription............................................25
7.1Overview.................................................................25
7.2FunctionalBlockDiagram.......................................25
7.3FeatureDescription.................................................26
7.4DeviceFunctionalModes........................................35
8ApplicationandImplementation........................48
8.1ApplicationInformation............................................48
8.2TypicalApplications................................................48
9PowerSupplyRecommendations......................53
10Layout...................................................................54
10.1LayoutGuidelines.................................................54
10.2LayoutExample....................................................54
11DeviceandDocumentationSupport.................56
11.1DocumentationSupport........................................56
11.2ReceivingNotificationofDocumentationUpdates56
11.3CommunityResources..........................................56
11.4Trademarks...........................................................56
11.5ElectrostaticDischargeCaution............................56
11.6Glossary................................................................56
12Mechanical,Packaging,andOrderable
Information...........................................................56
4RevisionHistory
DATEREVISIONNOTES
September2017*Initialrelease.
64AIN_8GND17DB1
1AVDD48 AVDD
63AIN_8P18DB2
2AGND47 AGND
62AIN_7GND19DB3
3OS046 REFGND
61AIN_7P20DB4
4OS145 REFCAPB
60AIN_6GND21DB5
5OS244 REFCAPA
59AIN_6P22DB6
6PAR/SER/BYTE_SEL43 REFGND
58AIN_5GND23DVDD
7STBY42 REFIN/REFOUT
57AIN_5P24DB7/DOUTA
8RANGE41 AGND
56AIN_4GND25DB8/DOUTB
9CONVSTA40 AGND
55AIN_4P26AGND
10CONVSTB39 REGCAP2
54AIN_3GND27DB9
11RESET38 AVDD
53AIN_3P28DB10
12RD/SCLK37 AVDD
52AIN_2GND29DB11
13CS36 REGCAP1
51AIN_2P30DB12
14BUSY35 AGND
50AIN_1GND31DB13
15FRSTDATA34 REFSEL
49AIN_1P32DB14/HBEN
16DB033 DB15/BYTE_SEL
Not to scale
3
ADS8598S
www.ti.com
SBAS827–SEPTEMBER2017
ProductFolderLinks:ADS8598S
SubmitDocumentationFeedbackCopyright©2017,TexasInstrumentsIncorporated
5PinConfigurationandFunctions
PMPackage
64-PinLQFP
TopView
PinFunctions
PIN
TYPEDESCRIPTION
NAMENO.
AGND
2,26,35,40,
41,47
PAnaloggroundpin.
AIN_1GND50AIAnaloginputchannel1:negativeinput.
AIN_1P49AIAnaloginputchannel1:positiveinput.
AIN_2GND52AIAnaloginputchannel2:negativeinput.
AIN_2P51AIAnaloginputchannel2:positiveinput.
AIN_3GND54AIAnaloginputchannel3:negativeinput.
AIN_3P53AIAnaloginputchannel3:positiveinput.
Product specificaties
| Merk: | Texas Instruments |
| Categorie: | Niet gecategoriseerd |
| Model: | ADS8598S |
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