+5V
+5V
Isolated Power
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
3
MDATA
1/2
OPA2237
1
Opto
Coupler
+5V
2
10kΩ
0.1µF
SCLK
SDATA
ADS1201
0.1µF
AIN
P
N
RG
10kΩ
+5V
AIN
AGND
VBIAS
GAIN/OFFSET 10
BIASEN
Opto
Coupler
6
5
MCLK
1/2
OPA2237
7
9
FIGURE 14. Single-Supply, High Accuracy Thermocouple Interface.
Floating Positive
HV+
Supply
Gate Drive
0.1µF
5.1V
DSP
1
2
3
4
5
6
7
8
AVDD
REFOUT
REFIN
NIC
REFEN 16
MDATA
Opto
Coupler
MOUT 15
MCLK 14
DVDD 13
DGND 12
CAL 11
+5V
0.1µF
SCLK
SDATA
RSENSE
ADS1201
0.1µF
A
INP
INN
RSENSE
+5V
A
Motor
AGND
VBIAS
GAIN/OFFSET 10
BIASEN
Opto
Coupler
MCLK
9
HV–
FIGURE 15. Motor Controller Sensing Circuit.
®
13
ADS1201
BB [ BURR-BROWN CORPORATION ]
