D_A_converter_with_bipolar_output

Published:2009/7/23 21:58:00 Author:Jessie | From:SeekIC

This circuit shows a DAC/op-amp combination that is used to provide ±5-V, ±10-V, or ±2.5-V bipolar outputs, with positive full-scale occurring when all bits are on (all 1s). To calibrate, turn off all bits, adjust R1 for -5.000, -10.000 or -2.500 V, depending on the range. If a precision op amp, such as the OP-27, OP-7, or OP-37 is used, no separate trimming of the op amp is required or recommended.



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