3
+In
RG
–In
7
AIN3N
AIN3P
5
1
8
AIN2P
AIN2N
AIN1P
AIN1N
AGND
VBIAS
CS
AIN4N
AIN4P
INA118
6
4
2
AGND
R1
10kΩ
REFIN
REFOUT
AVDD
1.0µF
–5V
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 44. Dual Supply, High Accuracy Thermocouple Interface with Cold Junction Compensation.
R1
6kΩ
–In
+In
A
INP
REFIN
REFOUT
AVDD
10kΩ
1.0µF
AIN
N
AGND
VBIAS
CS
AVDD
AGND
MODE
DRDY
SDOUT
SDIO
AVDD
6
AGND
DVDD
ADS1212
8
5
7
C1
6pF
DSYNC
XIN
REF200
100µA
100µA
I
O
XTAL
XOUT
DGND
SCLK
A
B
C
DVDD
DVDD
C2
6pF
DGND
1
2
3
4
DGND
AGND
FIGURE 45. Low Cost Bridge Transducer Interface with Current Excitation.
®
39
ADS1212, 1213
BB [ BURR-BROWN CORPORATION ]
