Datasheet

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PD
SDO
BUSY
Valid Data
td16
REFOUT
t
w4
t
d10
t
d18
Invalid Data
1 2 3
t
d11
t
d17
Full I
CC
Full I
CC
I
CC
PD
I
CC
PD
SDO
BUSY
1
2 3
Full I
CC
Full I
CC
t
w4
t
d10
Valid DataInvalid Data
t
d11
t
acq1
I
CC
I
CC
PD
t
d16
t
d18
NAP MODE
ADS8380
SLAS387A – NOVEMBER 2004 – REVISED DECEMBER 2004
Figure 53. Device Full Power Down/Resume (Internal Refernce Used)
Figure 54. Device Full Power Down/Resume (External Reference Used)
Nap mode is automatically inserted at the end of a conversion if CONVST_QUAL is held low at EOC. The
device can be operated in nap mode at the end of every conversion for saving power at lower throughputs.
Another way to use this mode is to convert multiple times and then enter nap mode. The minimum sampling
time after a nap state is t
acq1
+ t
d18
= t
acq2
.
24
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