Hi
I am using PGA280 in one of my application.
The PGA supplies are like below :
VSP=+15V, VSN=-15v and VSOP = +5v , VSON= GND , DVDD=3.3V, VCOM =2.5V.
Since PGA is rail to rail , I am trying to measure +15v and +10V Analog signal with a gain of 1/8
with input of +10v , I am getting the proper output of 1.25V
But with +15v input , I am supposed to get 1.875V, but i am geeting only 1.680V. I dont know where the problem is. Please help.
While PGA280 Works for all other lower voltage.
With much thanks.
Manjunath
