LTC2488 LINER [Linear Technology], LTC2488 Datasheet - Page 19

• Manufacturer Part Number: LTC2488
• Description: 16-Bit 2-/4-Channel ?? ADC with Easy Drive Input Current Cancellation
• Manufacturer: LINER [Linear Technology]

APPLICATIONS INFORMATION
(INTERNAL)
(INTERNAL)
SDO
SCK
SDI
SDO
Figure 8. Internal Serial Clock, Reduced Data Output Length with Valid Channel and Confi guration Selection
SCK
CS
SDI
CS
CONVERSION
CONVERSION
DON'T CARE
DON'T CARE
SLEEP
BIT 23 BIT 22 BIT 21 BIT 20 BIT 19 BIT 18 BIT 17 BIT 16 BIT 15
EOC
1
<t
1
EOCTEST
“0”
0
Figure 9. Internal Serial Clock, Continuous Operation
2
BIT 23 BIT 22 BIT 21 BIT 20 BIT 19 BIT 18 BIT 17 BIT 16 BIT 15
1
EOC
1
0.1µF
10µF
SIG
EN
3
“0”
0
2.7V TO 5.5V
2
0.1µF
10µF
MSB
SGL
4
0.1V TO V
REFERENCE
SIG
2.7V TO 5.5V
EN
ANALOG
INPUTS
VOLTAGE
3
ODD
0.1V TO V
REFERENCE
5
ANALOG
MSB
INPUTS
SGL
VOLTAGE
CC
4
A2
12
13
14
10
11
CC
8
9
7
6
ODD
5
V
REF
REF
CH0
CH1
CH2
CH3
COM
CC
12
13
14
10
11
LTC2488
8
9
7
+
–
A1
7
V
REF
REF
CH0
CH1
CH2
CH3
COM
A2
CC
6
LTC2488
GND
SDO
SCK
+
–
DATA INPUT/OUTPUT
SDI
CS
A0
F
8
O
A1
7
5
6
GND
SDO
SCK
2
3
SDI
1
4
DATA INPUT/OUTPUT
CS
F
O
9
5
6
A0
8
2
3
1
4
3-WIRE
SPI INTERFACE
9
= EXTERNAL OSCILLATOR
= INTERNAL OSCILLATOR
4-WIRE
SPI INTERFACE
BIT 14 BIT 13
= EXTERNAL OSCILLATOR
= INTERNAL OSCILLATOR
10
19
V
CC
BIT 4
LSB
OPTIONAL
10k
20
V
CC
Hi-Z
DON'T CARE
OPTIONAL
10k
BIT 3
21
BIT 2
22
BIT 1
DON'T CARE
23
BIT 0
24
LTC2488
CONVERSION
CONVERSION
2488 F08
2488 F09
19
2488f