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Nordic nRF5340 User Guide

Nordic nRF5340
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Measuring current
Figure 32: Current measurement with an oscilloscope
Some tips to reduce noise:
Use probes with 1× attenuation
Enable averaging mode to reduce random noise
Enable high resolution function if available
Use a minimum of 200 kSa/s (one sample every 5 µs) to get the correct average current measurement.
6.3 Using an ampere-meter for current measurement
The average current drawn by the nRF5340 SoC can be measured using an ampere-meter. This method will
monitor the current in series with the nRF device.
Make sure you have prepared the development kit board as described in section Preparing the PDK board
on page 32.
Connect an ampere-meter between the pins of connector P22 as shown in the figure below.
Figure 33: Current measurement with an ampere-meter
4406_489 v1.0
34

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Nordic nRF5340 Specifications

General IconGeneral
BrandNordic
ModelnRF5340
CategoryComputer Hardware
LanguageEnglish

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