LTC2494CUHF-PBF LINER [Linear Technology], LTC2494CUHF-PBF Datasheet - Page 23

• Manufacturer Part Number: LTC2494CUHF-PBF
• Description: 16-Bit 8-/16-Channel ?? ADC with PGA and Easy Drive Input Current Cancellation
• Manufacturer: LINER [Linear Technology]

APPLICATIONS INFORMATION
(EXTERNAL)
SDO
SCK
SDI
CS
CONVERSION
(EXTERNAL)
DON'T CARE
SDO
SCK
SDI
CS
CONVERSION
Figure 7. External Serial Clock, Reduced Output Data Length and Valid Channel Selection
SLEEP
BIT 23
DON'T CARE
1
EOC
1
BIT 22
SLEEP
“0”
0
2
Figure 8. External Serial Clock, 3-Wire Operation (CS = 0)
BIT 21
10μF
SIG
EN
3
2.7V TO 5.5V
BIT 23
10μF
1
EOC
1
BIT 20 BIT 19 BIT 18 BIT 17 BIT 16 BIT 15 BIT 14 BIT 13
MSB
SGL
2.7V TO 5.5V
4
0.1V TO V
0.1μF
REFERENCE
ANALOG
INPUTS
BIT 22
VOLTAGE
“0”
0
2
0.1V TO V
0.1μF
REFERENCE
ODD
ANALOG
INPUTS
5
VOLTAGE
CC
BIT 21
SIG
EN
3
•
•
•
•
•
•
A2
CC
28
29
30
15
16
23
8
7
6
BIT 20 BIT 19 BIT 18 BIT 17 BIT 16
MSB
•
•
•
•
•
•
SGL
V
REF
REF
CH0
CH7
CH8
CH15
COM
28
29
30
15
16
23
CC
•
•
•
•
•
•
DATA INPUT/OUTPUT
4
8
7
LTC2494
+
–
A1
7
V
REF
REF
CH0
CH7
CH8
CH15
COM
DATA INPUT/OUTPUT
CC
•
•
•
•
•
•
ODD
LTC2494
+
–
GND
5
SDO
SCK
SDI
CS
A0
F
8
O
GND
SDO
SCK
1,3,4,5,6,31,32,33,39
SDI
CS
A2
F
34
38
35
37
36
6
O
EN2
9
1,3,4,5,6,31,32,33,39
34
38
35
37
36
A1
7
3-WIRE
SPI INTERFACE
IM
10
= EXTERNAL OSCILLATOR
= INTERNAL OSCILLATOR
4-WIRE
SPI INTERFACE
A0
8
FA
11
= EXTERNAL OSCILLATOR
= INTERNAL OSCILLATOR
BIT 12 BIT 11
BIT 15
FB
12
SPD
13
BIT 10
CONVERSION
GS2
DON'T CARE
Hi-Z
14
BIT 9
GS1
15
GS0
16
SLEEP
LTC2494
BIT 0
24
2494 F07
DON'T CARE
CONVERSION
23
2494fb
2494 F08