Datasheet

LTC2484
20
2484fd
APPLICATIONS INFORMATION
EN DON’T CARE IM FOA FOB SPD
SDI
DON’T CARE DON’T CARE
SDO
SCK
(EXTERNAL)
CS
DATA
OUTPUT
CONVERSIONSLEEP
SLEEP
SLEEP
TEST EOC
DATA OUTPUT
Hi-Z Hi-ZHi-Z
CONVERSION
2484 F06
MSBSIG
BIT 8BIT 27 BIT 26 BIT 25 BIT 24 BIT 9BIT 28BIT 29BIT 30
EOC
BIT 31BIT 0
EOC
Hi-Z
TEST EOC
TEST EOC
(OPTIONAL)
V
CC
f
O
V
REF
IN
+
IN
–
SCK
SDI
SDO
CS
GND
210
INT/EXT CLOCK
3
4
5
9
7
8
6
1
REFERENCE
VOLTAGE
0.1V TO V
CC
ANALOG
INPUT
1μF
2.7V TO 5.5V
LTC2484
4-WIRE
SPI INTERFACE
Figure 6. External Serial Clock, Reduced Data Output Length
EOC
BIT 31
SDO
SCK
(EXTERNAL)
CS
EN DON’T CARE IM FOA FOB SPD
SDI
DON’T CARE
TEST EOC
MSBSIG
BIT 0
LSB
BIT 5BIT 27 BIT 26 BIT 25 BIT 24BIT 28BIT 29BIT 30
SLEEPSLEEP
DATA OUTPUT CONVERSION
2484 F05
CONVERSION
Hi-ZHi-ZHi-Z
TEST EOC
V
CC
f
O
V
REF
IN
+
IN
–
SCK
SDI
SDO
CS
GND
210
INT/EXT CLOCK
3
4
5
9
7
8
6
1
REFERENCE
VOLTAGE
0.1V TO V
CC
ANALOG
INPUT
1μF
2.7V TO 5.5V
LTC2484
4-WIRE
SPI INTERFACE
DON’T CARE
TEST EOC
(OPTIONAL)
Figure 5. External Serial Clock, Single Cycle Operation