Dear Sir/Madam, I am facing problem with recently purchased OPA454 ICs. While testing the circuit of Fig. 57 of the datasheet, OPA454 is not coming as expected. I am using following values of components: R1=1KOhm, R2=89KOhm; V+=90V, V-=0V, E/D Com.=0V, E/D=3.3V, Rp=1MOhm. By varying Vin from 0 to 1 Volt I am getting output maximum upto 300mV which varies inversely proportional to Vi. Please look into the problem.
Regards,
Sandeep Kumar