Hi
I am working on lmp91000 CO sensor.
I need some information on this and below details will explain my sensor configuration.
1.I configured sensor with below values
TIA_GAIN=120kΩ
RLOAD=10Ω
reference voltage source selection internal(REF_SOURCE=0)
BIAS=0%
OP_MODE= 3-lead amperometric cell
2. I am getting 130mv at output of lmp91000 based on above configutation
3. And i calculated approximate ppm based based on this voltage(130mv) and i got around 200ppm above
i=v/r = 130mv/120KΩ =1.0833uA
(i took reference from my CO Datasheet 4.75 nA/1ppm ) 1ppm=4.75nA.
from this calumniation the ppm value will be very high
can you please suggest whether the above configuration and ppm calculation is proper, if not tell me the what configuration i need to do and how to calculate the ppm based on output voltage.
Let me know if you need any details from my end.
