Ultraprecision_V_F_converter

Published:2009/7/24 1:42:00 Author:Jessie | From:SeekIC

Fig. 12-28 This circuit is capable of better than 0.2% error and 0.003% nonlinearity for a ±20℃ range about room temperature. The basic V/F function of the LM331 is augmented by an LM308A connected as an integrator. To trim, connect the input to ground, and set the offset adjustment for zero output. Remove the ground and apply -10.000 V to the input and adjust the 5-kΩ scale factor trim for 10-kHz output. National Semiconductor Linear Applications Handbook, 1991 p. 1310.



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