Datasheet

18
LTC1274/LTC1277
U
S
A
O
PP
L
IC
AT
I
WU
U
I FOR ATIO
Figure 15. Mode 2. CONVST Starts a Conversion. Data is Read by RD
CONVST
BUSY
RD
LTC1274/77 • F15
t
17
t
4
t
5
t
11
t
16
CS = 0
HBEN (LTC1277)
DATA N
DB11 TO DB0
DATA N
DB11 TO DB8
DATA N
DB7 TO DB0
LTC1274 DATA
LTC1277 DATA
t
8
t
9
t
CONV
t
12
(SAMPLE N) (SAMPLE N + 1)
t
10
t
7
Figure 14. Mode 1b. CONVST Starts a Conversion. Data Outputs Always Enabled
(CONVST = )
DATA (N – 1)
DB11 TO DB0
CONVST
BUSY
LTC1274/77 • F14
t
12
t
16
t
5
t
5
CS = RD = 0
HBEN (LTC1277)
DATA N
DB11 TO DB0
DATA (N – 1)
DB11 TO DB8
DATA (N – 1)
DB7 TO DB0
DATA N
DB7 TO DB0
DATA N
DB7 TO DB0
DATA (N + 1)
DB7 TO DB0
DATA N
DB11 TO DB8
DATA (N – 1)
DB7 TO DB0
DATA (N + 1)
DB11 TO DB0
LTC1274 DATA
LTC1277 DATA
t
7
t
CONV
(SAMPLE N)
t
6
t
15
(SAMPLE N + 1)