Since the optical levels need to be averaged to a DC value, the capacitors serve to remove data and test tone modulation from the detected optical signals. C2, C7, and C10 ensure op amp stability. C4 and C8 are optional to slow flicker when the comparator
| Authors | Glen Chenier |
| Main Document | Article «Analog comparator recognizes three signal relations» |
| Description | Figure 1 |
| File Format / Size | PDF / 24 Kb |
| Document Language | English |
Other Materials from the Main Document
- Article «Analog comparator recognizes three signal relations»
- Figure 1. Since the optical levels need to be averaged to a DC value, the capacitors serve to remove data and test tone modulation from the detected optical signals. C2, C7, and C10 ensure op amp stability. C4 and C8 are optional to slow flicker when the comparator
- Figure 2. This simulation shows both photodiodes with a DC offset current of 0.5 µA (2 V on the left scale) and ±0.6 µA variation to demonstrate the comparator responses with the resistor values shown in Figure 1. Reducing the values of R8 and R9
