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Low Current Measured at Decent Bandwidth

paul-stoffregenPaul Stoffregen
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I needed to actually "see" a current waveform in the 100 uA to 5 mA range with at least a couple MHz bandwidth. Agilents extremely expensive N2820A probe would have been perfect, but instead I built something similar for about $30 using the amazing Analog Devices AD8428 amplifier.

More details on my DorkbotPDX blog.

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