Datasheet

±IN
R
G
INA827
R
G
+IN
+V
S
V
OUT
REF
±V
S
R1
R2
V±IN
V+
REF
VO
U1
+
10 PF 0.1 PF
10 PF 0.1 PF
V±
RO
0 
0 
C10 C7
C6C9
V+IN
0
Sine Wave
0.1 V
PP
+
±
5 V
+
±
2.5 V
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3.2 Single Supply
Make the following connections to set up the INA827EVM for single-supply operation with a direct
connection for the reference voltage.
1. +5 V to V+ test point.
2. GND to V– test point.
3. +2.5 V to REF test point.
4. Differential input (for example, a 0.1-V
PP
sine wave) to V–IN and V+IN test points.
5. Oscilloscope to VO test point.
Ensure that R1 = R2 = RO = 0 Ω and that R
G
, R5, and CO are not populated. Figure 4 depicts a proper
single-supply configuration with a direct REF connection.
Figure 4. INA827EVM: Single-Supply Configuration, Direct REF Connection
5
SBOU121–June 2012 INA827EVM
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