3 ms·
Have used that JFET trick on large area photodiode amplifiers in a satellite based radiation detector. Works quite well. Also quite similar is actively driving
by IndrekR 2y ago
Have used that JFET trick on large area photodiode amplifiers in a satellite based radiation detector. Works quite well.
Also quite similar is actively driving the shield used in many high impedance sensor circuits (most notably capacitive touch sensing) to reduce the parasitic capacitance you would get when ground is used for the E-field shield:
https://www.ti.com/lit/an/snoa926a/snoa926a.pdf https://www.ti.com/lit/an/snoa926a/snoa926a.pdf
- milleramp 2y agoCan a similar technique be used to increase the bandwidth of an amplifier driving an LED?
- frabert 2y agoI think that if what you're looking for is to increase the speed at which you can drive something which has some parasitic capacitance, you would do that by using the techniques that are employed by e.g. gate drivers.