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ADS1294 Datasheet(PDF) 79 Page - Texas Instruments

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Part # ADS1294
Description  Low-Power, 8-Channel, 24-Bit Analog Front-End for Biopotential Measurements
PDF  88 Pages
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Manufacturer  TI [Texas Instruments]
Direct Link  http://www.ti.com
Logo TI - Texas Instruments

ADS1294 Datasheet(HTML) 79 Page - Texas Instruments

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Set
=1
Set
=1
W it
PDWN
RESET
a fo 1s
r
f r
o
Power-OnReset
//DelayforPower-OnResetandOscillator
art-Up
St
//IfSTARTisTie Hi h
d
g , AfterThisSt p
e
//
Togglesatf
/8192
//(LPModewithDR=f
/1024)
DRDY
CLK
MOD
SetCLKSELPin=1
andWaitforOscillator
toWakeUp
No
Analog/Digital Po er-Up
w
//FollowPower-UpSequencing
E erna
xt
l
Clock
SetCLKSELPin=0
andProvideExternalClock
f
=2.048MHz
CLK
Yes
SetPDB_R
1
EFBUF =
andWaitforInternalReference
toSettle
WriteCertainRegisters,
IncludingInputShort
SetSTART=1
//Activate
nversion
Co
//AfterThisPoint
ShouldToggleat
//f
/4096
DRDY
CLK
//SetDeviceinHRModeand DR=f
/1024
WREGCONFIG10x86
WREGCONFIG20x00
//SetAllChannelstoInputShort
WREGCHnSET0x01
MOD
Yes
R ATAC
D
//Putthe DeviceBackinRDATAC Mode
RDATAC
CaptureData
andCheckNoise
// ook
L
for
an Issu
s
d
DRDY
e 24+n
24SCLK
´
SetTestSignals
CaptureData
andTestSignal
// ctivate
A
a 1mV
V
/2.
´
(
4)
ve
l
Square-Wa
TestSigna
//OnAllChannels
SDATAC
WREGCONFIG20x10
WREGCHnSET0x05
RDATAC
REF
//Look for
a dIssu
s
DRDY n
e 24+n
24SCLK
´
External
Reference
//IfUsing InternalReference,SendThisCommand
¾
WREGCONFIG30xC0
No
SendSD TAC
A
Command
//Device WakesUpinRDATACMode,soSend
//SDATACCommandsoRegisterscanbeWritten
SDATAC
IssueReset Pulse,
Waitfor18t
s
CLK
//ActivateDUT
//
canbeEitherTiedPermanentlyLow
//OrSelectivelyPulledLowBeforeSending
//CommandsorReading/SendingDatafrom/toDevice
CS
ADS1294, ADS1294R
ADS1296, ADS1296R
ADS1298, ADS1298R
www.ti.com
SBAS459H
– JANUARY 2010 – REVISED OCTOBER 2011
Figure 77. Initial Flow at Power-Up
Copyright
© 2010–2011, Texas Instruments Incorporated
Submit Documentation Feedback
79
Product Folder Link(s): ADS1294 ADS1294R ADS1296 ADS1296R ADS1298 ADS1298R



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