LTC2484
23
2484fd
APPLICATIONS INFORMATION
EN
DON’T CARE
IM
FOA
FOB
SPD
SDI
DON’T CARE
SDO
SCK
(INTERNAL)
CS
>tEOCtest
MSB
SIG
BIT 8
TEST EOC
(OPTIONAL)
TEST EOC
BIT 27
BIT 26
BIT 25
BIT 24
BIT 28
BIT 29
BIT 30
EOC
BIT 31
EOC
BIT 0
SLEEP
DATA OUTPUT
Hi-Z
DATA
OUTPUT
CONVERSION
SLEEP
2484 F09
<tEOCtest
TEST EOC
VCC
fO
VREF
IN+
IN–
SCK
SDI
SDO
CS
GND
210
INT/EXT CLOCK
3
4
5
9
10k
VCC
7
8
6
1
REFERENCE
VOLTAGE
0.1V TO VCC
ANALOG
INPUT
1μF
2.7V TO 5.5V
LTC2484
4-WIRE
SPI INTERFACE
Figure 9. Internal Serial Clock, Reduce Data Output Length
EN
DON’T CARE
IM
FOA
FOB
SPD
SDI
DON’T CARE
SDO
SCK
(INTERNAL)
CS
MSB
SIG
BIT 0
LSB
BIT 5
TEST EOC
BIT 27
BIT 26
BIT 25
BIT 24
BIT 28
BIT 29
BIT 30
EOC
BIT 31
SLEEP
DATA OUTPUT
CONVERSION
2484 F08
<tEOCtest
Hi-Z
TEST EOC
VCC
fO
VREF
IN+
IN–
SCK
SDI
SDO
CS
GND
210
INT/EXT CLOCK
3
4
5
9
10k
VCC
7
8
6
1
REFERENCE
VOLTAGE
0.1V TO VCC
ANALOG
INPUT
1μF
2.7V TO 5.5V
LTC2484
4-WIRE
SPI INTERFACE
Figure 8. Internal Serial Clock, Single Cycle Operation