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Circuit adds programmability to sensor amplifier:
03/21/2002 EDN - Design Ideas / The pressure-sensor
amplifier circuit of Figure 1 offers a number of
advantages over the traditional approach using the
classic three-op-amp instrumentation amplifier. The
circuit can operate from a single supply and uses
only two op amps and 1% resistors. If the reference
voltage, VREF, is 0V, the transducer gain for the
circuit is to ensure equal gain for the two
ground-referenced volt... . |
