Datasheet

+IN
ADS8326
1000pF
10W
-IN
0.1mF
5W
CS
D
OUT
DCLOCK
47mF
IN
GND
OUT
0.47mF
REF
V
DD
REF3225
AV
DD
2.7Vto5V
DV
DD
2.7Vto3.6V
V
CM
+(0Vto2.5V)
GND GND
DSP
TMS320C6xx
or
TMS320C5xx
or
TMS320C2xx
0.1mF 10mF
10mF
+
+
OPA350
OPA365
1000pF
10W
V
CM
OPA365
1nF
10W
2.2mF
+IN
ADS8326
1000pF
10W
-IN
0.1mF
5W
CS
D
OUT
DCLOCK
47mF
IN
GND
OUT
0.47mF
REF
V
DD
REF3240
AV
DD
4.3Vto5.5V
DV
DD
4.5Vto5.5V
0Vto4.096V
GND GND
Microcontroller
or
DSP
0.1mF 10mF
10mF
+
+
OPA350
OPA365
10W
2.2mF
ADS8326
www.ti.com
.................................................................................................................................................. SBAS343C MAY 2007REVISED SEPTEMBER 2009
APPLICATION CIRCUITS
high-frequency noise from the supply itself. The exact
Figure 44 and Figure 45 show two examples of a
values should be picked such that the filter provides
basic data acquisition system. The ADS8326 input
adequate rejection of noise. Operational amplifiers
range is connected to 2.5V or 4.096V. The 5
and voltage reference are connected to analog power
resistor and 1μF to 10μF capacitor filters the
supply, AV
DD
.
microcontroller noise on the supply, as well as any
Figure 44. Basic Data Acquisition System: Example 1
Figure 45. Basic Data Acquisition System: Example 2
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Product Folder Link(s): ADS8326