Timeline for Noisy output from opamp comparator
Current License: CC BY-SA 4.0
11 events
| when toggle format | what | by | license | comment | |
|---|---|---|---|---|---|
| Mar 24, 2020 at 23:52 | answer | added | analogsystemsrf | timeline score: 0 | |
| Mar 24, 2020 at 23:49 | answer | added | Andy aka | timeline score: 2 | |
| Mar 24, 2020 at 23:02 | comment | added | Spehro 'speff' Pefhany | One from the input to the positive rail, one from the input to the negative rail. | |
| Mar 24, 2020 at 23:01 | comment | added | user8908459 | @SpehroPefhany, what do you mean by "one on each rail" | |
| Mar 24, 2020 at 23:00 | comment | added | user8908459 | @DKNguyen, I have tried reducing the resistor. Doing so does not help reduce the output noise. | |
| Mar 24, 2020 at 22:53 | comment | added | Spehro 'speff' Pefhany | Looks like you’ve built an oscillator. Replace R1 with two resistors, one to each rail. | |
| Mar 24, 2020 at 22:49 | comment | added | DKNguyen | Have you just tried reducing the 300K? | |
| Mar 24, 2020 at 22:41 | comment | added | user8908459 | @DKNguyen, I am using the non-inverting setup shown here e2e.ti.com/blogs_/archives/b/thesignal/archive/2013/01/28/… | |
| Mar 24, 2020 at 22:40 | comment | added | user8908459 | @DKNguyen, what is wrong with my hysteresis setup? | |
| Mar 24, 2020 at 22:39 | comment | added | DKNguyen | You have forward feedback but it doesn't look like it is set up for reliable, predictable hysteresis to me since you are feeding your signal positive feedback to the same input. That means your hysteresis depends on your input level. | |
| Mar 24, 2020 at 22:36 | history | asked | user8908459 | CC BY-SA 4.0 |