Patent ID: 6996488

Claim:
A system comprising: a programmable gain instrument amplifier having an input connected to a sensor; a comparator for comparing an amplifier output voltage of said programmable gain instrument amplifier to a desired output voltage value and providing a difference; a micro-controller for providing a gain and an offset based on said difference; a temperature sensor for measuring a temperature of said sensor; an analog-to-digital converter for providing at least three different physical measurements from said temperature sensor to said micro-controller; a first digital-to-analog converter for providing said gain to said programmable gain instrument amplifier; a second digital-to-analog converter for providing said offset to said programmable gain instrument amplifier; and a memory for storing a programming protocol and a plurality of programmed DAC adjustment values whereby trim values for temperature compensating, linearizing, and amplifying an amplifier output of said programmable gain instrument amplifier may be produced.