Texas Instruments LMP92066 Bedienungsanleitung

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0

5

10

15

20

25

30

35

±10

±8

±6

±4

±2

0

2

4

6

8

10

Occurrences (%)

REAOPC (mV)

C009

MEAN = 0.72 mV

STDEV = 1.71 mV

LMP92066

DAC0

FETDRV0

FETDRV1

DAC1

DRVEN1

DRVEN0

SDA

SCL

A1

A0

µC

3.3V

VIO

GNDDVSSBGNDA

VDDBVDD

5V

PA: LDMOS

10µ

PA: LDMOS

10µ

Gate Bias 1

Gate Bias 0

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LMP92066

SNAS634B–MARCH2014–REVISEDJANUARY2016

LMP92066DualTemperature-ControlledDACwithIntegratedEEPROMandOutput

ON/OFFControl

1Features3Description

TheLMP92066isahighlyintegratedtemperature-

1

•Internal12-BitTemperatureSensor

controlleddualDAC.BothDACscanbeprogrammed

–Accuracy(–40°Cto120°C),±3.2°C

bytwoindependent,user-defined,temperature-to-

(maximum)

voltagetransferfunctionsstoredintheinternal

•TwoIndependentTransferFunctionsStoredin

EEPROM,allowinganytemperatureeffectstobe

correctedwithoutadditionalexternalcircuitry.Once

EEPROM

poweredup,thedeviceoperatesautonomously,

•Dual-AnalogOutput

withoutinterventionfromthesystemcontroller,to

–Two12-BitDACs

provideacompletesolutionforsettingand

–OutputRange0Vto5Vor0Vto–5V

compensatingbiasvoltagesandcurrentsincontrol

applications.

–High-CapacitiveLoadTolerant,upto10µF

TheLMP92066hastwoanalogoutputsthatsupport

–Post-CalibrationAccuracy±2.4mV(typical)

twooutputranges:zerotoplusfivevoltsandzeroto

•OutputOn/OffControlSwitchingTime50ns

minusfivevolts.Eachoutputcanbeswitchedtothe

(typical)

loadindividuallythroughtheuseofthededicated

–SwitchingTime50ns(typical)

controlpin.Theoutputswitchingisdesignedforrapid

response,makingthedevicesuitablefortheRF

–RDSON5Ω(maximum)

PowerAmplifierbiasingapplications.

•I

2

CInterface:StandardandFast

TheEEPROMisverifiedfor100writeoperations,

–NineSelectableSlaveAddresses

enablingrepeatedfieldupdates.TheEEPROM

–TIMEOUTFunction

programmingiscompletedupontheuser-issuedI

2

C

•VDDSupplyRange4.75Vto5.25V

command.

•VIORange1.65Vto3.6V

TheLMP92066’sdigitalportsinterfacetoavarietyof

•SpecifiedTemperatureRange–25°Cto120°C

systemcontrollers,asthededicatedVIOpinsetsthe

digitalI/Olevels.Thedeviceisavailableinthe

•OperatingTemperatureRange–40°Cto125°C

thermallyenhancedPowerPAD™package,enabling

precisePCBtemperaturemeasurement.

2Applications

•GaNorLDMOSPABiasController

DeviceInformation

•SensorTemperatureCompensation

PARTNUMBERPACKAGEBODYSIZE

•TimingCircuitTemperatureCompensation

LMP92066HTSSOP(16)5.00mmx4.40mm

4SimplifiedSchematic

ResidualErrorAfterOnePointCalibration

1

AnIMPORTANTNOTICEattheendofthisdatasheetaddressesavailability,warranty,changes,useinsafety-criticalapplications,

intellectualpropertymattersandotherimportantdisclaimers.PRODUCTIONDATA.

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