When measuring the output signal of the current electrode (CE0 pin) a ripple of around 1.6Mhz can be seen (see image). Is this a normal behavior of the chip (AD5940) or can this be reduced, what configuration could help to reduce this ripple?

| SLA Status | Assignee | Support Status |
|---|---|---|
| SLA Closed. Missed after 1700 hours |
Akila mkhairy RGrau DanB mark.ramos |
Awaiting Customer Response |
AD5940
Recommended for New Designs
The AD5940 and AD5941 are high precision, low power analog front ends (AFEs) designed for portable applications that require high precision, electrochemical...
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AD5940 on Analog.com
When measuring the output signal of the current electrode (CE0 pin) a ripple of around 1.6Mhz can be seen (see image). Is this a normal behavior of the chip (AD5940) or can this be reduced, what configuration could help to reduce this ripple?

Hi,
ADC acquisition rate is 1.6MHz.
Could you remove the load on CE0 pin and check again?
Are you using RE0 feedback. It increases stability.