ADR225 데이터 시트보기 (PDF) - Analog Devices
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ADR225 Datasheet PDF : 12 Pages
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Data Sheet
THEORY OF OPERATION
BASIC VOLTAGE REFERENCE CONNECTIONS
The circuit shown in Figure 24 is the basic configuration for the
ADR225. Note that a 10 µF and 0.1 µF bypass network on the input
and at least a 1 µF bypass capacitor on the output are required for
proper device operation. It is recommended that no connections
be made to Pin 1, Pin 3, Pin 5, Pin 7, and Pin 8.
ADR225
10µF 0.1µF
NC 1
8 NC
VS 2
7 NC
ADR225 OUTPUT
NC 3
6
4
5 NC
+ 1µF
TANT
+
1µF
NC = NO CONNECT.
Figure 24. Basic Voltage Reference Connections
VCC
+5V
+ C1
10µF
C2
0.1µF
U1
ADR225
VS
OUTPUT
GND
+ C3
1µF
V+
+5V
C4
0.1µF
R2
2.5kΩ
R3
2.5kΩ
+IN A
–IN A
U2A
AD8634
–5V
V–
RTD
+VS
+5V
U3
AD8229
+IN
VOUT
–IN
R1
2.5kΩ
Figure 25. Typical High Temperature Resistance Temperature Detector (RTD) Signal Conditioning Circuit
–5V
–VS
Rev. B | Page 9 of 12
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