Datasheet

ADS1212, 1213
37
SBAS064A
FIGURE 39. PT100 Interface.
FIGURE 40. Complete 4-20mA Receiver.
FIGURE 41. Single Supply, High-Accuracy Thermocouple.
ADS1212
A
IN
P
A
IN
N
AGND
V
BIAS
CS
DSYNC
X
IN
X
OUT
DGND
REF
IN
REF
OUT
AV
DD
MODE
DRDY
SDOUT
SDIO
SCLK
DV
DD
C
2
6pF
C
1
6pF
DV
DD
AGND
DGND
DGND
DGND
AGND
XTAL
AGND
AV
DD
DV
DD
INA118
1
3
7
4
8
2
6
5
R
G
+In
–In
AB
REF200
100µA 100µA
R
3
14kΩ
R
2
100Ω
R
1
100Ω
AGND
1.0µF
ADS1212
A
IN
P
A
IN
N
AGND
V
BIAS
CS
DSYNC
X
IN
X
OUT
DGND
REF
IN
REF
OUT
AV
DD
MODE
DRDY
SDOUT
SDIO
SCLK
DV
DD
C
2
6pF
C
1
6pF
DV
DD
AGND
DGND
DGND
DGND
XTAL
AV
DD
DV
DD
RCV420
15
+In
3
2
–In
1
C
T
–15V
14
13
5
+15V
4–20mA
AGND
1.0µF
ADS1212
A
IN
P
A
IN
N
AGND
V
BIAS
CS
DSYNC
X
IN
X
OUT
DGND
REF
IN
REF
OUT
AV
DD
MODE
DRDY
SDOUT
SDIO
SCLK
DV
DD
C
2
6pF
C
1
6pF
DV
DD
AGND
DGND
DGND
DGND
XTAL
+5V
DV
DD
INA128
R
G
R
1
10kΩ
AGND
1
3
7
8
2
6
4
5
+In
–In
Termination
AGND
1.0µF