I have designed a load cell amplifier with three opamp in amp. I use this amplifier in baby incubator project. I have sensor module inside incubator and my amplifier circuit is in the module. Module temp can be 45-50C some times because of settled temp of incubator. So , my amplifier out changes +-20mV( x201 gain ) range ( about 200 grams ). I think , i need an inst. amp with 10 ppm/C , 10nV/root(Hz) , 0.5uVpp , 0.5uV/C and very good CMR. So , i need voltage reference ic near properties and 14-16 bit ADC. Please give me info , which ics can i use? Thanks for your answers.