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DRV425-BUSBAR-EVM: DRV425-Q1 Output Noise

Part Number: DRV425-BUSBAR-EVM
Other Parts Discussed in Thread: DRV425-Q1, DRV425

Hello Javier,

's data had 20 mVpp of noise with up to 40 mVpp.

The DRV425-Q1 data sheet says

-  Noise is typically 17 nT rms from 0.1 to 10 Hz

-  Noise density at 1 kHz is 1.5 nT/sqrt(Hz)

These values don't correlate to the data shown by the original poster.

The RC filter you're advising has a cutoff at ~ 16 kHz.

This raises two questions:

1.  Does the DRV425 generate substantial noise beyond 1 kHz?

2.  Or was the noise in the original data due to grounding/layout?