/diy/ - Do It Yourself

Anonymous Wed May 23 10:58:16 2018 No.1392099 [View]
File: 1.14 MB, 2080x2366, noise.jpg [View same] [iqdb] [saucenao] [google]

Any idea why my instrumentation amplifier is so noisy?

It's an INA128P

First pic is the measured signal, 2nd pic is the same signal through the instrumentation amplifier with Gain=1

I'm fine with the slew rate restrictions but this noise is like 1Vpp, fairly unacceptable I'd say?

I'm using +-15 V supply, connected 10 kohm to ground on each input, Vref is on ground, Rg is not connected to get that Gain=1.

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/diy/ - Do It Yourself

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