ADC 2 Specifiche

S/HComparatorCDACInputMUXAVDDREFINSARS/HComparatorCDACREFOUTAGNDSAR10-BitDAC2.5VReferenceParallelInterfaceCHA0+CHA0-CHA1+CHA1-BVDDDB[11:0]CSCLOCKWR

-40 -25 -10 1251109580655035205Temperature( C)°OffsetErrorandOffsetMatch(LSB)2.01.51.00.500.51.01.52.0----OffsetErrorOffsetMatchAV (V)DD1.00.8

Frequency(Hz)0-20-40-140Amplitude(dB)0 200k 1M-60-80-120400k 600k 800k-100Frequency(kHz)0-20-40-140Amplitude(dB)0 100 750-60-80-120200 300 400-100

-40 -25 -10 1251109580655035205Temperature( C)°THD(dB)-------88907880828486AV =5VDDAV =2.7VDDf (kHz)IN-76-78-92THD(dB)-84AV =2.7VDD-86AV =5VDD-

-40 -25 -10 1251109580655035205Temperature( C)°AV (mA)DD1.81.61.41.21.00.80.60.40.20AV =5VDDAV =2.7VDDDataRate(kSPS)60AV (mA)DD0 500 1000 15004Re

InputMUXADC+ADC-CHx1+CHx1-CHx0+CHx0-ADS7865SBAS441C –OCTOBER 2008–REVISED APRIL 2012www.ti.comAPPLICATION INFORMATIONGENERAL DESCRIPTIONThe ADS7865 in

f =-3dBln(2) (n+1)´2 tp ´ACQADS7865www.ti.comSBAS441C –OCTOBER 2008–REVISED APRIL 2012Analog-to-Digital Converter (ADC)The minimum –3dB bandwidth of

ADS7865SBAS441C –OCTOBER 2008–REVISED APRIL 2012www.ti.comRESETreference stable (see the previous discussion ofREFIN). For applications that use an ex

ADS7865www.ti.comSBAS441C –OCTOBER 2008–REVISED APRIL 2012DIGITAL DP: Deep power-down enable('1' = device in deep power-down mode)This secti

CLOCKCONVSTWRRDCSDB[11:0]B SU YPrevious Con rsve ionofBothCHxxConversionofBothDifferentialCHx0ConversionofBothDifferentialCHx1OutputC AH xOutp

ADS7865www.ti.comSBAS441C –OCTOBER 2008–REVISED APRIL 2012Sequencer RegisterA/B data of the second-last channel in the sequence,and so on. Trying to r

ADS7865SBAS441C –OCTOBER 2008–REVISED APRIL 2012www.ti.comThis integrated circuit can be damaged by ESD. Texas Instruments recommends that all integra

ConvA ConvB ConvCConvA ConvB ConvCConvA ConvB ConvCCONVSTBUSYMode0(One-shotconversionstart,oneBUSYforwholesequence)CONVSTBUSYMode1

WRRDCSDB[11:0]b01xxxxx001DAC lVa ueb01xxxxx011 DAC lVa ueADS7865www.ti.comSBAS441C –OCTOBER 2008–REVISED APRIL 2012Programming the Reference DACTo ver

ADS7865SBAS441C –OCTOBER 2008–REVISED APRIL 2012www.ti.comPower-Down Modes and ResetThe auto-nap power-down mode is very similar tothe nap mode. The o

f =-3dBln(2) 2´2 16 tp ´ ´CLKADS7865www.ti.comSBAS441C –OCTOBER 2008–REVISED APRIL 2012ADS7862 COMPATIBILITY DAC properly via the DAC register while r

f =FILTERln(2) (n+1)´2 2 Rp ´ C´ ´ ´R=tACQln(2) 2(n+1) C´ ´ ´BGNDCHB1+CHB1-CHB0+CHB0-CHA1+CHA1-CHA0+CHA0-REFINREFOUTAGNDBGNDBVDDDB[11:0]BUSYCLOCK

ADS7865www.ti.comSBAS441C –OCTOBER 2008–REVISED APRIL 2012LAYOUT Depending on the circuit density of the board,placement of the analog and digital com

LEGENDTOPlayer;copperpourandtraceslowerlayer;AGNDarealowerlayer;BGNDareaviaTop ViewADS7865IREFINREFOUTAGND22BGNDBVDD212032 31 30 29 28 27to

ADS7865www.ti.comSBAS441C –OCTOBER 2008–REVISED APRIL 2012REVISION HISTORYNOTE: Page numbers for previous revisions may differ from page numbers in th

PACKAGE OPTION ADDENDUMwww.ti.com10-Jun-2014Addendum-Page 1PACKAGING INFORMATIONOrderable Device Status(1)Package Type PackageDrawingPins PackageQtyEc

PACKAGE OPTION ADDENDUMwww.ti.com10-Jun-2014Addendum-Page 2continues to take reasonable steps to provide representative and accurate information but m

ADS7865www.ti.comSBAS441C –OCTOBER 2008–REVISED APRIL 2012ELECTRICAL CHARACTERISTICSAt TA= –40°C to +125°C; over entire power-supply voltage range, VR

TAPE AND REEL INFORMATION*All dimensions are nominalDevice PackageTypePackageDrawingPins SPQ ReelDiameter(mm)ReelWidthW1 (mm)A0(mm)B0(mm)K0(mm)P1(mm)W

*All dimensions are nominalDevice Package Type Package Drawing Pins SPQ Length (mm) Width (mm) Height (mm)ADS7865IPBSR TQFP PBS 32 1000 367.0 367.0 38

IMPORTANT NOTICETexas Instruments Incorporated and its subsidiaries (TI) reserve the right to make corrections, enhancements, improvements and otherch

ADS7865SBAS441C –OCTOBER 2008–REVISED APRIL 2012www.ti.comELECTRICAL CHARACTERISTICS (continued)At TA= –40°C to +125°C; over entire power-supply volta

R =200WSERR =50WSWCHXX+R =200WSERR =50WSWCHXX-C =5pFPARC =5pFPARC =2pFSC =2pFSADS7865www.ti.comSBAS441C –OCTOBER 2008–REVISED APRIL 2012ELECTR

REFINREFOUTAGNDAVDDDB11DB10DB9DB8BVDDBGNDWRRDCSCLOCKCONVSTBUSY123456782423222120191817CHA0+32DB79CHA0-31DB610CHA1+30DB511CHA1-29DB412CHB0-28DB313CHB0+

CLOCKCONVSTWRRDCSDB[11:0]BUSY1 1614tCLKtCLKHtCLKLt1t2t5t6t10t11CHAxOutputt13InputDatat6t7CHBxOutputPreviousConversion Resultst14Conversion CycletCONV

CLOCKCONVST10nsCyc el 1Cyc el 2AB C10ns5ns 5nsADS7865SBAS441C –OCTOBER 2008–REVISED APRIL 2012www.ti.comTIMING REQUIREMENTS(1)ADS7865PARAMETER TEST CO

-40 -25 -10 1251109580655035205Temperature( C)°INL(LSB)PositiveNegative1.000.750.500.2500.250.500.751.00----DataRate(MSPS)1.000.750.500.2500.250.5