INA282, INA283
INA284, INA285
INA286
SBOS485A –NOVEMBER 2009–REVISED JULY 2010
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Splitting the Supply
By connecting one reference pin to V+ and the other to the ground pin, the output is set at half of the supply
when there is no differential input, as shown in Figure 37. This method creates a midscale offset that is
ratiometric to the supply voltage; thus, if the supply increases or decreases, the output remains at half the
supply.
Supply
-14V to +80V
Load
V+
+IN
-IN
V+
Æ1
Æ2
Æ2
Æ1
Æ2
Æ2
Æ1
Æ1
OUT
ZerÆ-
Drift
Output
GAIN
PRODUCT
50V/V
INA282
INA286
INA283
INA284
INA285
33.3kW
33.3kW
100V/V
200V/V
500V/V
1000V/V
REF2
REF1
GND
Figure 37. Split-Supply Output
18
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