ltc2484 Linear Technology Corporation, ltc2484 Datasheet - Page 21

• Manufacturer Part Number: ltc2484
• Description: 24-bit Delta Sigma Adc With Easy Drive Input Current Cancellation
• Manufacturer: Linear Technology Corporation

APPLICATIO S I FOR ATIO
(EXTERNAL)
(EXTERNAL)
SDO
SCK
SDI
CS
SDO
SLEEP
SCK
SDI
CONVERSION
CS
Hi-Z
TEST EOC
OUTPUT
DATA
SLEEP
(OPTIONAL)
BIT 0
TEST EOC
EOC
DON’T CARE
U
CONVERSION
Hi-Z
SLEEP
Hi-Z
TEST EOC
DON’T CARE
U
Hi-Z
SLEEP
BIT 31
EN
EOC
(OPTIONAL)
TEST EOC
Figure 6. External Serial Clock, Reduced Data Output Length
BIT 30
SLEEP
Hi-Z
W
Figure 5. External Serial Clock, Single Cycle Operation
DON’T CARE
BIT 31
EN
EOC
BIT 29
SIG
0.1V TO V
REFERENCE
BIT 30
VOLTAGE
ANALOG
U
INPUT
1µF
BIT 28
2.7V TO 5.5V
MSB
CC
0.1V TO V
REFERENCE
VOLTAGE
ANALOG
DON’T CARE
2
3
4
5
INPUT
1µF
2.7V TO 5.5V
IM
BIT 27
BIT 29
V
V
IN
IN
SIG
CC
CC
REF
+
–
LTC2484
2
3
4
5
GND
SCK
SDO
FOA
V
V
IN
IN
SDI
BIT 28
BIT 26
CS
CC
REF
F
MSB
+
–
O
LTC2484
DATA OUTPUT
7
8
10
1
9
6
SDO
GND
SCK
SDI
CS
F
BIT 25
FOB
BIT 27
O
INT/EXT CLOCK
IM
7
8
4-WIRE
SPI INTERFACE
10
1
9
6
DATA OUTPUT
BIT 26
INT/EXT CLOCK
BIT 24
SPD
FOA
4-WIRE
SPI INTERFACE
BIT 25
FOB
DON’T CARE
BIT 24
SPD
BIT 5
LSB
BIT 9
BIT 8
BIT 0
LTC2484
DON’T CARE
CONVERSION
Hi-Z
CONVERSION
Hi-Z
TEST EOC
21
TEST EOC
2484 F06
2484fa
2484 F05