Questions tagged [drift]
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56 questions
4 votes
3 answers
262 views
Will output capacitance of a MOSFET drift over time?
I have an electronics design, that is sensitive to the output capacitance. How does Co(er) (or Coss, as Co(er) must be the integration of Coss over the bias voltage right?) vary when the device ages? ...
- 364
3 votes
1 answer
634 views
Unstable ADC reading of HX711
I have designed a board with a HX711 for a kitchen scale (MCU on the board is an esp32-s3-wroom-1u-n8r8). When I start the system, the HX711 starts at a random value and drifts over some time (seconds ...
- 31
2 votes
2 answers
228 views
How to minimize the effect on DNL error from this opamp circuit?
By using the following single LM324 circuit, I create amplified bipolar outputs from a 16-bit 0-3.3V DAC output as follows: My aim is to minimize extra DC error due to the above LM324 circuit ...
- 2,143
0 votes
1 answer
290 views
How to get angles to which a device was rotated using info from an IMU6 sensor (gyroscope and accelerometer)?
I have a device with an IMU6 sensor. When it is laying on the table, the gyroscope and accelerometer data are constantly changing. The values between two measurements are similar, but they are never ...
- 173
0 votes
3 answers
975 views
How do I reduce strain gage drift?
my name is Joe Vaccarella. I am a research assistant at the University of Rochester. I’m currently conducting a project where I have 4 strain gages, mounted on a polycarbonate tube. (one gage on each ...
2 votes
2 answers
174 views
Why passive component has better drift characteristics than active components had?
I came across this paragraph in the classic reference Op Amps For Everyone by Ron Mancini where it says on the first page: Many attempts has been made to make a stable amplifier, but temperature ...
- 1,488
1 vote
1 answer
212 views
Output voltage error
This is an external protection circuit for an analog to digital converter. I have modelled the resistive sensor as a voltage divider. I have used pull down resistor R14 to avoid floating input then I ...
- 317
0 votes
3 answers
281 views
Sallen key topology choosing right op-amp
Welcome all. I designed Bessel low pas filter using Analogue Devices filter wizard. It is a fantastic toll saving loads of time. However, like any tool has its limitations. Upon completion my design I ...
- 381