Datasheet

Set =1
Set =1
W it
PDWN
RESET
a fo 1sr f ro
Power-OnReset
//DelayforPower-OnResetandOscillator art-UpSt
//IfSTARTisTie Hi hd g , AfterThisSt pe
// Togglesatf /8192
//(LPModewithDR=f /1024)
DRDY
CLK
MOD
SetCLKSELPin=1
andWaitforOscillator
toWakeUp
No
Analog/Digital Po er-Upw //FollowPower-UpSequencing
E ernaxt l
Clock
SetCLKSELPin=0
andProvideExternalClock
f =2.048MHz
CLK
Yes
SetPDB_R 1EFBUF =
andWaitforInternalReference
toSettle
WriteCertainRegisters,
IncludingInputShort
SetSTART=1
//Activate nversionCo
//AfterThisPoint ShouldToggleat
//f /4096
DRDY
CLK
//SetDeviceinHRModeand DR=f /1024
WREGCONFIG10x86
WREGCONFIG20x00
//SetAllChannelstoInputShort
WREGCHnSET0x01
MOD
Yes
R ATACD
//Putthe DeviceBackinRDATAC Mode
RDATAC
CaptureData
andCheckNoise
// ookL for an Issu sdDRDY e 24+n 24SCLK´
SetTestSignals
CaptureData
andTestSignal
// ctivateA a 1mV V /2.´( 4) ve lSquare-Wa TestSigna
//OnAllChannels
SDATAC
WREGCONFIG20x10
WREGCHnSET0x05
RDATAC
REF
//Look for a dIssu sDRDY n e 24+n 24SCLK´
External
Reference
//IfUsing InternalReference,SendThisCommand
¾WREGCONFIG30xC0
No
SendSD TACA
Command
//Device WakesUpinRDATACMode,soSend
//SDATACCommandsoRegisterscanbeWritten
SDATAC
IssueReset Pulse,
Waitfor18t s
CLK
//ActivateDUT
// canbeEitherTiedPermanentlyLow
//OrSelectivelyPulledLowBeforeSending
//CommandsorReading/SendingDatafrom/toDevice
CS
ADS1294, ADS1294R
ADS1296, ADS1296R
ADS1298, ADS1298R
SBAS459I –JANUARY 2010–REVISED JANUARY 2012 www.ti.com
Figure 77. Initial Flow at Power-Up
78 Submit Documentation Feedback Copyright © 2010–2012, Texas Instruments Incorporated
Product Folder Link(s): ADS1294 ADS1294R ADS1296 ADS1296R ADS1298 ADS1298R