Texas Instruments LMV712-N Handleiding

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RF SignalIN

OUT

U1

GSM PA

V

PC

Directional Coupler

C2

U2

Input

Coupled

Load

Output

C4

BIAS

V

CC

GSM

ANTENNA

R5

RLOAD

R2

R3

C5

+

±

OUT

C3

R1

V

CC

U3

V-

R4

SD

Shut Down

Ramp

Up/Down

V+

Schottky Diode

Detector

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AnIMPORTANTNOTICEattheendofthisdatasheetaddressesavailability,warranty,changes,useinsafety-criticalapplications,

intellectualpropertymattersandotherimportantdisclaimers.PRODUCTIONDATA.

LMV712-N

,

LMV712-N-Q1

SNOS534J–FEBRUARY2001–REVISEDNOVEMBER2016

LMV712-N,LMV712-N-Q1LowPower,LowNoise,HighOutput,RRIODualOperational

AmplifierWithIndependentShutdown

1

1Features

1

•AvailableInAutomotiveAEC-Q100Grade1

Version(LMV712-NOnly)

•5-MHzGBP

•SlewRate:5V/µs

•LowNoise:20nV/√Hz

•SupplyCurrent:1.22mA/Channel

•V

OS

<3mVMaximum

•Ensured2.7-Vand5-VSpecifications

•TemperatureRange:–40°Cto125°C

•Rail-to-RailInputsandOutputs

•UnityGainStable

•SmallPackage:10-PinDSBGA,10-PinWSON,

and10-PinVSSOP

•1.5-µAShutdownI

CC

•2.2-µsTurnon

2Applications

•PowerAmplifierControlLoops

•CellularPhones

•PortableEquipment

•WirelessLAN

•RadioSystems

•CordlessPhones

3Description

TheLMV712-Ndevicesarehigh-performance

BiCMOSoperationalamplifiersintendedfor

applicationsrequiringrail-to-railinputscombinedwith

speedandlownoise.Theyofferabandwidthof

5MHzandaslewrateof5V/µs,andcanhandle

capacitiveloadsofupto200pFwithoutoscillation.

TheLMV712-Nisensuredtooperatefrom2.7Vto

5.5Vandofferstwoindependentshutdownpins.This

featureallowsdisablingofeachdeviceseparately

andreducesthesupplycurrenttolessthan1µA

typical.Theoutputvoltagerapidlyrampsupsmoothly

withnoglitchastheamplifiercomesoutofthe

shutdownmode.

TheLMV712-Nwiththeshutdownfeatureisoffered

inspace-saving10-pinDSBGAand10-pinWSON

packages.Itisalsoofferedin10-pinVSSOP

package.Thesepackagesaredesignedtomeetthe

demandsofsmallsize,lowpower,andlowcost

requiredbycellularphonesandsimilarbattery-

operatedportableelectronics.

DeviceInformation

(1)

PARTNUMBERPACKAGEBODYSIZE(NOM)

LMV712-N

DSBGA(10)1.75mm×2.25mm

WSON(10)3.00mm×3.00mm

LMV712-N,

LMV712-N-Q1

VSSOP(10)3.00mm×3.00mm

(1)Forallavailablepackages,seetheorderableaddendumat

theendofthedatasheet.

PowerAmplifierControlLoop

Product specificaties