Datasheet

N
(N+1)
ConverterState
EOC
EOS
EOC
EOS
ReadResult
N
Wakeup Power-DownSample N
³ 3CCLK
Conversion N
=18CCLK
Wakeup Power-DownSample (N+1)
³ 3CCLK
Conversion (N+1)
=18CCLK
CS
CS
CONVST
ReadWhileConverting
ReadWhileSampling
Note
(2)
Note
(2)
ReadResult
(N 1)-
t
H2
ReadResult
(N 1)-
t
SU2
Note
(3)
Note
(3)
Note
(1)
Note
(1)
t
H2
t
SU2
ReadResult
N
Note
(2)
Note
(2)
Note
(3)
Note
(3)
N
(N+1)
EOC
ReadResult (N 1)-
ReadResult N
Conversion N
Conversion (N+1)
Sample (N+1)
CS
CS
CONVST
ReadWhileConverting
ReadWhileSampling
EOC
(activelow)
EOS EOS
t
H2
t
SU1
EOC
t
SU2
t
H1
ADS8331
ADS8332
www.ti.com SBAS363C –DECEMBER 2009–REVISED MAY 2012
Figure 43. Read While Converting vs Read While Sampling (Manual-Trigger Mode)
BLANKSPACE
(1) Converter is in acquisition mode between end of conversion and activation of Nap or Deep Power-Down mode.
(2) Command on SDI pin to wake up converter (minimum of four SCLKs).
(3) Command on SDI pin to place converter into Nap or Deep Power-Down mode (minimum of 16 SCLKs).
Figure 44. Read While Converting vs Read While Sampling with Nap or Deep Power-Down (Manual-
Trigger Mode)
Copyright © 2009–2012, Texas Instruments Incorporated 25