| Electronics > Projects, Designs, and Technical Stuff |
| -0.7V rail creation for op amp |
| << < (4/4) |
| Zero999:
--- Quote from: Hiemal on January 11, 2019, 11:33:02 pm ---As an alternative you can use a 555 timer as a charge pump to create a negative voltage. --- End quote --- Yes, let's not forget the classic 555 timer circuit. It will need a lot of filtering though to get rid of the noise. Another option is to replace the 555 with a different oscillator. A Schmitt trigger oscillator using the 74HC1G14 would be perfect: it would use less power and space than the 555. |
| Navigation |
| Message Index |
| Previous page |