3
+In
RG
–In
7
5
1
8
A
INP
REFIN
REFOUT
AVDD
INA128
6
1.0µF
AGND
AIN
N
4
2
AGND
VBIAS
CS
+5V
AGND
DVDD
R1
10kΩ
MODE
DRDY
SDOUT
SDIO
–5V
ADS1212
C1
DGND
DSYNC
XIN
6pF
AGND
XTAL
XOUT
DGND
SCLK
DVDD
DVDD
C2
6pF
DGND
DGND
FIGURE 42. Dual Supply, High Accuracy Thermocouple.
3
+In
RG
–In
7
AIN3N
AIN3P
AGND
5
1
8
AIN2P
AIN2N
AIN1P
AIN1N
AGND
VBIAS
CS
AIN4N
AIN4P
INA118
4
6
2
AGND
REFIN
REFOUT
AVDD
R1
10kΩ
1.0µF
AGND
AGND
+5V
ADS1213U, P
AGND
MODE
DRDY
SDOUT
SDIO
1N4148
R2
13kΩ
AGND
DVDD
DGND
C1
6pF
DSYNC
XIN
XTAL
XOUT
SCLK
DVDD
DGND
DVDD
C2
6pF
DGND
DGND
FIGURE 43. Single Supply, High Accuracy Thermocouple Interface with Cold Junction Compensation.
®
38
ADS1212, 1213
BB [ BURR-BROWN CORPORATION ]
