REF200
100A
100A
A
B
+ IN
R
G
R
1
100
R
2
100
In
3
1
7
5
INA118
6
A
IN
P
A
IN
N
4
AGND
AGND
DV
DD
AGND
V
BIAS
CS
REF
IN
REF
OUT
AV
DD
模式
ADS1212
DRDY
SDOUT
SDIO
SCLK
DV
DD
DV
DD
DGND
AV
DD
AGND
1.0F
8
2
R
3
14k
C
1
6pF
XTAL
C
2
6pF
DGND
DSYNC
X
IN
AGND
DGND
X
OUT
DGND
图39. PT100接口。
+15V
+ IN
3
4–20mA
In
1
–15V
C
1
6pF
XTAL
C
2
6pF
DGND
5
AGND
DV
DD
C
T
2
15
RCV420
13
14
A
IN
P
A
IN
N
AGND
V
BIAS
CS
REF
IN
REF
OUT
AV
DD
模式
ADS1212
DRDY
SDOUT
SDIO
SCLK
DV
DD
DV
DD
DGND
AV
DD
AGND
1.0F
DSYNC
X
IN
X
OUT
DGND
DGND
图40.完整的4-20mA接收器。
+ IN
3
1
R
G
In
终止
R
1
10k
8
2
INA128
4
7
5
6
A
IN
P
A
IN
N
AGND
AGND
DV
DD
C
1
6pF
XTAL
C
2
6pF
DGND
V
BIAS
CS
REF
IN
REF
OUT
AV
DD
模式
ADS1212
DRDY
SDOUT
SDIO
SCLK
DV
DD
DV
DD
DGND
+5V
AGND
1.0F
AGND
DSYNC
X
IN
X
OUT
DGND
DGND
图41.单电源，高精度热电偶。
37
ADS1212 ， 1213
