Hello

Can any one help me in designing an OTA in 180nm for low frequency biomedical ECG acquisition system.

I want to know what ICMR do I have to select for OTA that will be used in the designing of filter and after filter design the OTA will be used in ECG detection system.

What are the main specifications to look up for designing of OTA for ECG acquisition system ?

Power dissipation should be low.
noise should also be low, for low flicker noise I am using PMOS differrential pair at input but what ICMR do I have to select.

Regards