Other Parts Discussed in Thread: TINA-TI
In my new design, the op-amps LMH6551 draw too much current from positive and negative supply.
Here is the schematic of the circuit. (There is 100nF between each VCP pin and GND)
1. First, I couldn't see any output signal, it was always zero.
2. Then, I decrease the gain resistors. Finally, I see output signal at output with a gain value. But opamp continue to draw too much current.
For you information, there is 20 opamp on board. They draw 2A per two supply.
Do you have any idea what causes this problem?
Thank you for your help.