ABB AO801 3BSE020514R1 Channel analog output module

ABB AO801 3BSE020514R1 Channel analog output module

Next in the signal path are the instrumentation amplifiers, which fulfill two purposes on the SCXI-1140 module. First, the instrumentation amplifiers convert differential input signals into single-ended signals referred to the SCXI-1140 ground for input common-mode signal rejection. With this conversion, you can extract the analog input signals from common-mode noise voltages before the data acquisition board samples and converts the signals. Second, the instrumentation amplifiers amplify input signals, resulting in an increase in measurement resolution and accuracy. Furthermore, the amplifiers exhibit low bias currents and good bandwidth, even at high gains. You can select gains for each channel independently with separate DIP switches. Gains are 1, 10, 100, 200, and 500, although gains of 300, 600, 700, and 800 are available with reduced accuracy. See Appendix A, Specifications, for details on the performance of the instrumentation amplifiers.

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