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...
Datasheet
AD5940 on Analog.com
ADUCM355
Recommended for New Designs
The ADuCM355 is an on-chip system that controls and measures electrochemical sensors and biosensors. The ADuCM355 is an ultralow power, mixed-signal microcontroller...
Datasheet
ADUCM355 on Analog.com
AD5941
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...
Datasheet
AD5941 on Analog.com
Hello,
we would like to use the ADC5940 respectively the ADUCM355 for voltage measurements (OCP, open circuit voltage) on an electrochemical sensor. Concerning this issue, two questions occurred. I guess ADC5940 and ADUCM355 are somehow similar.
1)We want to make a shortcut between the pins CE0 and RE0 and then measuring the voltage between CE0/RE0 and WE0 (OCP). Is it possible to measure that voltage by setting the MUXSELP-bits of the ADCCON-register to 01110 (page 70, ADuCM355 Hardware Reference Manual, https://www.analog.com/media/en/technical-documentation/user-guides/ADuCM355-Hardware-Reference-Manual-UG-1262.pdf respectivley page 61, AD5940 datasheet, https://www.analog.com/media/en/technical-documentation/data-sheets/AD5940-5941.pdf)
2) Which magnitude would be the referring input impedance?
Kind regards