+5V
10Ω
1
2
3
4
5
6
7
8
AVDD
REFOUT
REFIN
NIC
REFEN 16
MOUT 15
MCLK 14
DVDD 13
DGND 12
CAL 11
+
10µF
0.1µF
ADS1201
0.1µF
A
INP
INN
A
AGND
VBIAS
GAIN/OFFSET 10
BIASEN
9
FIGURE 10. Power Supply Connection Using One Power Plane and One Digital Plane.
+5V
Isolated Power
6kΩ
0.1µF
10kΩ
DSP
1
2
3
4
5
6
7
8
AVDD
REFOUT
REFIN
NIC
REFEN 16
MOUT 15
MCLK 14
DVDD 13
DGND 12
CAL 11
MDATA
Opto
Coupler
+5V
8
7
100µA
100µA
1µF
SCLK
SDATA
ADS1201
0.1µF
AIN
P
N
1
2
REF200
+5V
AIN
5
4
AGND
VBIAS
GAIN/OFFSET 10
BIASEN
Opto
Coupler
MCLK
9
3
FIGURE 11. Bridge Transducer Interface with Current Excitation.
11
®
ADS1201