Datasheet

14
LTC1290
1290fe
U
S
A
O
PP
L
IC
AT
I
WU
U
I FOR ATIO
Figure 2. Data Output (D
OUT
) Timing with Different Word Lengths
t
SMPL
B11
18
t
CONV
B10 B9 B8 B7 B4
(SB)
8-Bit Word Length
SCLK
CS
D
OUT
LSB-FIRST
t
SMPL
B11
1
t
CONV
(SB)
12-Bit Word Length
SCLK
CS
D
OUT
LSB-FIRST
10 12
D
OUT
MSB-FIRST
D
OUT
MSB-FIRST
(SB)
t
SMPL
1
t
CONV
16-Bit Word Length
12 16
FILL
ZEROS
***
* IN UNIPOLAR MODE, THESE BITS ARE FILLED WITH ZEROS.
IN BIPOLAR MODE, THE SIGN BIT IS EXTENDED INTO THESE LOCATIONS.
LTC1290 F02
B6 B5
B0 B1 B2 B3 B4 B7B5 B6
B10 B9 B8 B7 B6 B5 B4 B3 B2 B1 B0
B0 B1 B2 B3 B4 B5 B6 B7 B8 B9 B10 B11
SCLK
CS
D
OUT
LSB-FIRST
D
OUT
MSB-FIRST
B11
(SB)
(SB)
B10 B9 B8 B7 B6 B5 B4 B3 B2 B1 B0
B0 B1 B2 B3 B4 B5 B6 B7 B8 B9 B10 B11
THE LAST FOUR BITS
ARE TRUNCATED