D_A_converter_with_0__to__10_V_unipolar_voltage_output

Published:2009/7/23 21:54:00 Author:Jessie | From:SeekIC

This circuit shows a DAC/op-amp combination that is used to provide a 0- to +10-V unipolar output. Pin 8 should be grounded if it is not used for trimming. To calibrate, turn all bits on (+5 V) and adjust R1 until the output is +9.9976 (full scale should be adjusted to 1 LSB less than +10.000V).If +10.2375V full scale is desired (exactly 2.5 mV/bit), insert a 120-Ω resistor in series with the gain resistor at pin 10 to the Op-amp output. If a 0- to a +5-V output is desired, tie pin 11 to pin 9, rather than to pin 10, and adjust the full scale to +4.9988 V.



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