Hi All,
I need ultra low power small signal amplifier (bjt, fet, or mosfet, single stage, gain arround 10),
the amplifier is battery operated 1.5-3.3volt,
stanby current sould be less than 5uA,smaller is better
i don't know how to start, have try some calculation, but seems can not tolerate wide supply variation, let say if calculation made on 3 volt supply, the circuit will not work for 2 volt supply,
pls some body help me, or share any idea
best regard
davids