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參數(shù)資料
| 型號： | LTC1856IG#TR |
| 廠商： | LINEAR TECHNOLOGY CORP |
| 元件分類： | ADC |
| 英文描述： | 8-CH 14-BIT PROPRIETARY METHOD ADC, SERIAL ACCESS, PDSO28 |
| 封裝： | 5.3 MM, PLASTIC, SSOP-28 |
| 文件頁數(shù)： | 9/24頁 |
| 文件大?。?/td> | 300K |
| 代理商： | LTC1856IG#TR |
17
LTC1854/LTC1855/LTC1856
185456fa
Figure
6a.
Mode
1
for
the
LTC1856*.
CONVST
Starts
a
Conversion,
Data
Output
is
Always
Enabled
(RD
=
0)
Figure
6b.
Mode
2
for
the
LTC1856*.
CONVST
and
RD
Tied
Together.
CONVST
Starts
a
Conversion,
Data
is
Read
by
RD
APPLICATIO S I FOR ATIO
WU
UU
SGL/
DIFF
1
t 4
RD
=
0
SCK
SDI
SDO
CONVST
BUSY
2
3
4
5
6
7
8
15
16
ODD/
SIGN
SELECT
1
SELECT
0
X
NAP
SLEEP
DON’T
CARE
DON’T
CARE
B14
B13
B12
B15
(MSB)
B11
B10
B9
B8
B1
B0
t ACQ
t 7
t 6
t 2
t CONV
t 1
t 10
t 11
SHIFT
CONFIGURATION
WORD
IN
SGL/
DIFF
1
2
34
5
678
1
5
1
6
ODD/
SIGN
SELECT
1
SELECT
0
X
NAP
SLEEP
DON’T
CARE
B14
B13
B12
B15
(MSB)
B11
B10
B9
B8
B1
B0
18545
F06a
SHIFT
A/D
RESULT
OUT
AND
NEW
CONFIGURATION
WORD
IN
t 5
t 3
t 12
SGL/
DIFF
1
t 4
CONVST
=
RD
SCK
SDI
Hi-Z
SDO
BUSY
2
3
4
5
6
7
8
15
16
ODD/
SIGN
SELECT
1
SELECT
0
X
NAP
SLEEP
DON’T
CARE
DON’T
CARE
B14
B13
B12
B15
(MSB)
B11
B10
B9
B8
t ACQ
t 13
t 2
t CONV
Hi-Z
t 10
t 11
SHIFT
CONFIGURATION
WORD
IN
SGL/
DIFF
1
2
34
5
678
1
5
1
6
ODD/
SIGN
SELECT
1
SELECT
0
X
NAP
SLEEP
DON’T
CARE
B14
B13
B12
B15
(MSB)
B11
B10
B9
B8
Hi-Z
SHIFT
A/D
RESULT
OUT
AND
NEW
CONFIGURATION
WORD
IN
t 5
t 3
t 9
t 8
t 7
t 6
185456
F06b
B1
B0
B1
B0
Figure
7.
Operating
Sequence
for
the
LTC1856*
SGL/
DIFF
1
t 4
RD
SCK
SDI
Hi-Z
SDO
BUSY
CONVST
2
3
4
5
6
7
8
15
16
ODD/
SIGN
SELECT
1
SELECT
0
X
NAP
SLEEP
DON’T
CARE
DON’T
CARE
B14
B13
B12
B15
(MSB)
B11
B10
B9
B8
t ACQ
t 13
t 2
t 1
t CONV
Hi-Z
t 10
t 11
SHIFT
CONFIGURATION
WORD
IN
SGL/
DIFF
1
2
34
5
678
1
5
1
6
ODD/
SIGN
SELECT
1
SELECT
0
X
NAP
SLEEP
DON’T
CARE
B14
B13
B12
B15
(MSB)
B11
B10
B9
B8
Hi-Z
SHIFT
A/D
RESULT
OUT
AND
NEW
CONFIGURATION
WORD
IN
t 5
t 3
t 9
t 8
t 7
t 6
185456
F07
B1
B0
B1
B0
*For
the
12-bit
LTC1854
and
the
LTC1855
the
last
four
and
two
bits
of
the
SDO
will
output
zeros,
respectively.
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