Datasheet

LTC2453
10
2453fc
SLEEP
7-BIT ADDRESS
(0010100)
S PR ACK READ
DATA OUTPUT CONVERSIONCONVERSION
2453 F05
Figure 5. The LTC2453 Coversion Sequence
SLEEP SLEEP
S PR ACK READ READ
DATA OUTPUT
CONVERSION CONVERSION
2453 F06
S R PACK
CONVERSIONDATA OUTPUT
7-BIT ADDRESS
(0010100)
7-BIT ADDRESS
(0010100)
Figure 6. Consecutive Reading at the Same Configuration
Figure 7. Start a New Conversion without Reading Old Conversion Result
SLEEP
S PR ACK READ (OPTIONAL)
DATA OUTPUT CONVERSIONCONVERSION
2453 F07
7-BIT ADDRESS
(0010100)
APPLICATIONS INFORMATION
1 7 8 9 2 31 8
D8D13D14
(SGN)
MSB
D15RSDA
SCL
7-BIT
ADDRESS
START BY
MASTER
D7 D6 D5 D0
LSB
9 1 2 3 8 9
ACK BY
LTC2453
ACK BY
MASTER
NACK BY
MASTER
SLEEP DATA OUTPUT
CONVERSION
2453 F04
Figure 4. Read Sequence Timing Diagram
Table 1. LTC2453 Output Data Format. FS = V
REF
+
– V
REF
-
.
DIFFERENTIAL INPUT
VOLTAGE V
IN
+
- V
IN
-
D15
(MSB) D14 D13 D12 ... D2 D1
D0
(LSB)
CORRESPONDING
DECIMAL VALUE
≥FS 1 1 1 1 1 1 65535
FS - 1LSB 1 1 1 1 1 0 65534
0.5 • FS 1 1 0 0 0 0 49152
0.5 • FS - 1LSB 1 0 1 1 1 1 49151
0 1 0 0 0 0 0 32768
-1LSB 0 1 1 1 1 1 32767
-0.5 • FS 0 1 0 0 0 0 16384
-0.5 • FS - 1LSB 0 0 1 1 1 1 16383
≤-FS 0 0 0 0 0 0 0