Datasheet

Areanyofthesetobeenabled?
a)AL_PDasAlarmOut
b)Power-upINTREFGEN
c)Power-upTEMPSENSOR
DevicePowersUp
StartsinManualModechannel0,
10Vinputrange.±
Programthe
InternalControlRegister(Page0,Register06h)
WillthedevicebeusedinAutoMode?
Willchannelselectionbeenabled?
(Default=channel0enabled)
No Yes
No Yes
No Yes
No Yes
Programthe
InternalControlRegister(Page0,Register06h)
Willanychannelinputrange
otherthan 10Vbeused?±
Programthe
RangeSelectRegister
(Page0,Registers10hto13h)
Willthealarmthresholdbeprogrammed
withorwithouthysteresis?
GotoPage1andProgramthe
PageSelectRegister(Page0,Register7Fh)
WritetheAlarmThresholdand
Hysteresisintothe
AlarmRegister(Page1,Registers00hto23h)
ReturntoPage0andProgramthe
PageSelectRegister(Page1,Register7Fh)
StartManualModeOperationor
AutoModeOperation
ManualMode
ChangeConfiguration ChangeConfiguration
AutoMode
ChangeMode
Continue Continue
Continue
ManualModeOperation
WritetoPage0,Register04h
AutoModeOperation
WritetoPage0,Register05h
ContinueOperationinConfiguredMode
WritetoPage0,Register00h
ADS8634
ADS8638
www.ti.com SBAS541A –MAY 2011– REVISED AUGUST 2011
PROGRAMMING SEQUENCE
A typical programming sequence for the ADS8634/8 is shown in Figure 93.
Figure 93. Programming Flowchart
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