Datasheet

1 2 3 54 6 7
15
16
14
MSB−1 MSB−2 MSB−3
MSB−4
MSB−5 MSB−6 LSB+2 LSB+1 LSB
MSB−1 MSB−2 MSB−3 MSB−4 MSB−5 MSB−6 LSB+2 LSB+1 LSB
MSB
t
su(CSF−SCLK1F)
CS/FS
t
d(CSF−SDOVALID)
t
su(SDI−SCLKF)
t
h(SDI−SCLKF)
t
d(SCLKF−SDOINVALID)
t
d(SCLKF−SDOVALID)
t
d(CSR−SDOZ)
t
su(16thSCLK−CSR)
t
wL(SCLK)
t
wH(SCLK)
t
c(SCLK)
SCLK
SDO
SDI
Hi−Z
MSB
1101b1101b
MANUAL TRIGGER/READWhileSampling
(useinternalCCLK ,EOCand INTactivehigh activelow,TAGenabled,autochannelselect)
Hi−Z
EOS EOC
READResult READResult
N−1thCH1
CONVST
INT
(activelow)
EOC
(activelow)
CS/FS
SCLK
SDO
SDI
NthCH0
1 ....................... 16 17
116....................... 17
Nth CH1
NthCH1NthCH0
NthCH0
Hi−Z
TAG=0
TAG=1
t
wL(CONVST)
t
wL(CONVST)
t
SAMPLE1
=3CCLKsmin
t
CONV
=18CCLKs
t
d(CSR-EOS)
= 20nsMIN
t
CONV
=18CCLKs
t
h(CSF-EOC)
t
su(CSF-EOS)
ADS8327
ADS8328
SLAS415E – APRIL 2006– REVISED JANUARY 2011 www.ti.com
Figure 5. Detailed SPI Transfer Timing
Figure 6. Simplified Dual Channel Timing
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Product Folder Link(s): ADS8327 ADS8328