Part Number:ISO124
I designed analog circuits using INA128, ISO124, OPA2140.
I set up Amp gain is 1 or 5 by placing a gain resistor (Open or 12.4kΩ) between INA128's pin 1 and pin 8.
INA128 output is ISO124 input.
ISO124's Output sames ISO124's Input when INA128 gain is 1. (Figure TEST 1)
ISO124's Output looks like satuation when INA128 gain is 5. (Figure TEST 2)
INA128's input is 1.4V, so INA128's output is about 7.0V. (Gain 5)
The graph is normal when I measure INA128's output (7.0V).
But ISO124's Output is abnormal. It looks like satuation.
(ISO124's supply power is +13.5V, -13.5V, so 7V INPUT is not saturation range.)
