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AS8501 датащи(PDF) 18 Page - ams AG

номер детали AS8501
подробное описание детали  High precision voltage and current measurement sensor interface
PDF  41 Pages
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производитель  AMSCO [ams AG]
домашняя страница  http://www.ams.com
Logo AMSCO - ams AG

AS8501 датащи(HTML) 18 Page - ams AG

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AS8501 - Data Sheet
austriamicrosystems
Revision 1.1, 04-April-06
www.austriamicrosystems.com
Page 17 of 40
Current source setting bits (5 bits)
Nr.
Current [uA]
i4
i3
i2
i1
i0
NOTE
0
0
0
0
0
0
0
1
8
0
0
0
0
1
2
16
0
0
0
1
0
3
24
0
0
0
1
1
4
32
0
0
1
0
0
…
…
…
…
…
…
31
248
1
1
1
1
1
subregister CRV: Voltage configuration (4 bits )
Nr.
Bits
3
2
1
0
NOTE
0
CRV bit
names
M15
M10
M9
M7
1),3)
1
Defaults
0
0
0
0
2)
2
channel
VBAT-
RSHL
VBAT-ETS
differential
ETS-RSHL
ETR-
RSHL
Notes:
1)
This register defines the connection of the analog voltage- bus to the input-PINs and to the A/D converter
2)
Default logic state after power-up and before any setting
subregister CRP: Power down configuration ( 7 bits )
Nr.
Bits
p6
p5
p4
p3
p2
p1
p0
NOTE
0
CRP bit
names
pdosc
pda
pdm
pdb
pdc
pdi
pdg
1),3)
1
Defaults
0
0
0
0
1
0
0
2)
2
block
oscillator amplifier
modu-
lator
ref. bias
current
source
internal
temp.
analog
GND
Notes:
1)
This register defines the power-down signals of the building blocks
2)
Default power-up state before any setting
3)
The logic is positive (pdosc=1 means the corresponding block is in power-down)
7.5.3
CRA measurement channel A configuration register ( 17 bits )
Nr.
Bits
16
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
0
NOTE
0
CRA bit
names
cu2 cu1 cu0 M5
M4
M3
M2
M1
g1
g0
f
r
mm n3 n2
n1
n0 1), 3)
1
Defaults
0
0
0
0
0
0
0
1
1
1
1
0
0
0
0
0
0 2)
2
subreg.
CRU
CRM
GN
OSF
OSR
MM
CRN
Notes:
1)
This register defines the measurement channel A configuration
2)
Default power-up state before any setting
3)
Bit M1 is control signal of the multiplexer for current input
(for example M1=1 means that corresponding switch is closed).



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