This thread has been locked.

If you have a related question, please click the "Ask a related question" button in the top right corner. The newly created question will be automatically linked to this question.

OPA 454 E/D pin and E/D COM in Fig 76

I am not sure if there is a way to use the Enable pin when using the output voltage boost circuit in Figure 76 of the datasheet.

The specs say that E/D com must be between V- and (V+)-5V. Since V+ on the bottom two amps can be at GND then is it true E/D com must be tied to (V-)?

How would I apply (V-)+5V to the center op amp's E/D pin when V- is ranging from -100V to 0V? 

Thanks for the help.

David