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Constituted by the INA131 differential voltage - current con

2015-01-06 00:29  
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Constituted by the INA131 differential voltage - current conversion circuit
Constituted by the INA131 differential voltage - current conversion circuit as shown: s shown constituted by the differential voltage INA131 - current conversion circuit. INA131 output constituted by the current sources A1 and R, because high input impedance operational amplifier, the bias current is extremely small, and the output current to the load is negligible compared to, so the output current Io can be considered constant, and only the input voltage and R about, Io = 100VIN / R (gain = 100). A1 Selection and IB error below.