參數(shù)資料
型號: LTC1858CG#TRPBF
廠商: Linear Technology
文件頁數(shù): 6/20頁
文件大?。?/td> 0K
描述: IC A/D CONV 8CH 14BIT 28-SSOP
標(biāo)準(zhǔn)包裝: 2,000
系列: SoftSpan™
位數(shù): 14
采樣率(每秒): 100k
數(shù)據(jù)接口: MICROWIRE?,串行,SPI?
轉(zhuǎn)換器數(shù)目: 1
功率耗散(最大): 40mW
電壓電源: 模擬和數(shù)字
工作溫度: 0°C ~ 70°C
安裝類型: 表面貼裝
封裝/外殼: 28-SSOP(0.209",5.30mm 寬)
供應(yīng)商設(shè)備封裝: 28-SSOP
包裝: 帶卷 (TR)
輸入數(shù)目和類型: 8 個單端,單極;8 個單端,雙極;4 個差分,單極;4 個差分,雙極
LTC1857/LTC1858/LTC1859
14
185789fa
Figure
6a.
Mode
1
for
the
L
TC1859*.
CONVST
Starts
a
Conversion,
Data
Output
is
Always
Enabled
(
RD
=
0)
Figure
6b.
Mode
2
for
the
L
TC1859*.
CONVST
and
RD
T
ied
T
ogether
.CONVST
Starts
a
Conversion,
Data
is
Read
by
RD
SGL/
DIFF
1
t 4
RD
=
0
SCK
SDI
SDO
CONVST
BUSY
23
4
5
6
7
8
1
5
1
6
ODD/
SIGN
SELECT
1
SELECT
0
UNI
GAIN
NAP
SLEEP
DON’T
CARE
DON’T
CARE
B14
B13
B12
B15
(MSB)
B11
B10
B9
B8
B1
B0
(LSB)
t ACQ
t 7
t 6
t 2
t CONV
t 1
t 10
t 11
SHIFT
CONFIGURATION
WORD
IN
SGL/
DIFF
1
2
3
4
5
6
7
8
15
16
ODD/
SIGN
SELECT
1
SELECT
0
UNI
GAIN
NAP
SLEEP
DON’T
CARE
B14
B13
B12
B15
(MSB)
B11
B10
B9
B8
B1
1859
F06a
B0
(LSB)
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
UNI
GAIN
NAP
SLEEP
DON’T
CARE
DON’T
CARE
B14
B13
B12
B15
(MSB)
B11
B10
B9
B8
B1
B0
(LSB)
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
UNI
GAIN
NAP
SLEEP
DON’T
CARE
B14
B13
B12
B15
(MSB)
B11
B10
B9
B8
B1
1859
F06b
B0
(LSB)
Hi-Z
SHIFT
A/D
RESULT
OUT
AND
NEW
CONFIGURATION
WORD
IN
t 5
t 3
t 9
t 8
t 7
t 6
Figure
7.
Operating
Sequence
for
the
L
TC1859*
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
UNI
GAIN
NAP
SLEEP
DON’T
CARE
DON’T
CARE
B14
B13
B12
B15
(MSB)
B11
B10
B9
B8
B1
B0
(LSB)
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
UNI
GAIN
NAP
SLEEP
DON’T
CARE
B14
B13
B12
B15
(MSB)
B11
B10
B9
B8
B1
1859
F07
B0
(LSB)
Hi-Z
SHIFT
A/D
RESULT
OUT
AND
NEW
CONFIGURATION
WORD
IN
t 5
t 3
t 9
t 8
t 7
t 6
*For
the
12-bit
L
TC1857
and
14-bit
L
TC1858,
the
last
four
and
two
bits
of
the
SDO
will
output
zeros
respectively
.
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