LF347: Capacitor values in LVDT schematic (AN-301 Signal Conditioning for Sophisticated Transducers)

Ruben Van Mossevelde

Prodigy 10 points

Part Number: LM3290

Someone already asked this question but the answer was send directly to the person. Can anyone tell me the values?

question:

does anyone know who is the author of the below application note:

AN-301 Signal Conditioning for Sophisticated Transducers
http://www.ti.com/lit/an/snoa606b/snoa606b.pdf

The question is about LVDT schematic (Figure 14. LVDT, below) and some of the capacitor values - some of them do not have a given multiplier (uF, nF, pF); for example: 0.005, 0.2, 0.01, 0.1.

Then, on top left there is a resistor with value 10. Is it 10 Ohm?

Thanks for your help.

over 2 years ago

+1 Jerry Madalvanos over 2 years ago

TI__Mastermind 28536 points

Hey Ruben,

First, the capacitors that do not have designators should all be in uF, this is hinted from the above paragraph

"During the time the flip-flop was low, the 2N3810 current source was allowed to charge the 0.01 μF capacitor (waveform D, Figure 9)."

This is for a different figure but I'm sure the assumption holds throughout.

Additionally, yes. That should be a 10 ohm resistor, please see the below article on emitter resistance.

https://www.electronics-tutorials.ws/amplifier/emitter-resistance.html

Best,
Jerry

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LF347: Capacitor values in LVDT schematic (AN-301 Signal Conditioning for Sophisticated Transducers)