The bad: Attenuation of the supply voltages is done with subtraction instead of division, destroying the PSRR of the amplifier
| Authors | Stephen Woodward |
| Main Document | Article «The good, the bad, and the ugly of zero trims» |
| Description | Figure 1 |
| File Format / Size | PDF / 11 Kb |
| Document Language | English |
Other Materials from the Main Document
- Article «The good, the bad, and the ugly of zero trims»
- Figure 1. The bad: Attenuation of the supply voltages is done with subtraction instead of division, destroying the PSRR of the amplifier
- Figure 2. The ugly: An attempt to correct for the destroyed PSRR can be done by achieving attenuation with a voltage divider instead; however, the supply rails must be symmetrical, leading us back to our PSRR problem
- Figure 3. The good: Setting R2 = R3(-V+/ V-)/2 to get a symmetrical trim range
