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LTC1416 데이터 시트보기 (PDF) - Linear Technology
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LTC1416
Low Power 14-Bit, 400ksps Sampling ADC
Linear Technology
LTC1416 Datasheet PDF : 20 Pages
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LTC1416
APPLICATIONS INFORMATION
ANALOG
INPUT
1
µ
F CER
C5
1
A
IN+
2
A
IN–
3
V
REF
4
COMP
28
AV
DD
27
DV
DD
26
V
SS
25
BUSY
5
AGND
24
CS
6
23
D13 (MSB) CONVST
7
D12
22
RD
8
D11
21
SHDN
9
D10
10
D9
LTC1416
20
D0
19
D1
11
D8
18
D2
12
D7
17
D3
13
D6
16
D4
14
DGND
15
D5
C6
C7
MICROPROCESSOR/
MICROCONTROLLER
INTERFACE
C8
22
µ
F
+
10V
TANT
C5 = 22
µ
F CERAMIC
C6, C7 = 10
µ
F CERAMIC
L1 = OCTAPAC CTX-100-1
D1 = 1N5818
2 L1 3
1
4
CUK*
CONVERTER
5
V
IN
8
V
SW
4
S/S U2
7
LT1373
3
GND
NFB
6
GND S
1
V
C
C9
0.01
µ
F
C10
10
µ
F
CER
D1
R3
4.99k
5V
–5V
C11
100
µ
F
10V
TANT
R4
4.99k
1%
C12
0.1
µ
F
R5
4.99k
1%
R6
499
Ω
1%
1416 F12a
Figure 12a. Using the LT1373 to Generate a – 5V Supply
ANALOG
INPUT
1
µ
F CER
C5
1
A
IN+
28
AV
DD
2
A
IN–
27
DV
DD
3
V
REF
26
V
SS
4
COMP
25
BUSY
5
AGND
24
CS
6
23
D13 (MSB) CONVST
7
D12
22
RD
8
D11
21
SHDN
9
D10
10
D9
LTC1416
20
D0
19
D1
11
D8
18
D2
12
D7
17
D3
13
D6
16
D4
14
DGND
15
D5
C6
C7
C1
+
10
µ
F
TANT
MICROPROCESSOR/
MICROCONTROLLER
INTERFACE
C5 = 22
µ
F CERAMIC
C6, C7 = 10
µ
F CERAMIC
1
FB/SHDN
V+
8
2
CAP+ U1
7
OSC
3
LT1054
6
GND
V
REF
4
CAP–
5
V
OUT
C2
2
µ
F
R1, 30.1k
R2, 120k
C4
100
µ
F
TANT
+
C3
0.002
µ
F
5V
–5V
1416 F12b
14
Figure 12b. Using the LT1054 to Generate a – 5V Supply
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