The correction of analog device transformation function by the instrumentality of programmable gain amplifier

At the present stage of microprocessor equipment development analogue devices became to be forced out by microprocessor (intellectual) devices. However, analogue devices have a doubtless advantage - their speed. For this reason they are widely applied nowadays in some industries having bigger errors of measurements than microprocessor devices. A reduction of analogue devices errors is an actual and a prospective problem. One of possible ways of its decision is a correction of the transformation function which can be carried out by programmable gain amplifier PGA 309 by Texas Instruments. There are examined the applications of this microcircuit for reduction of a nonlinearity error of analogue pressure device.