A
Hello, friends.
I'd like develop a small device to switch on a relay (or maybe a semiconductor switch like a SCR or TRIAC) on passing a current as low as 0,2 uA in another circuit with return by the ground. In this circuit the thevenin impedance to source is 10-12 Mohms.
I thinked to use a trasresistante amplifier with output of 2,5 volts or more.
Do you know any IC fitted to it?
I'd like develop a small device to switch on a relay (or maybe a semiconductor switch like a SCR or TRIAC) on passing a current as low as 0,2 uA in another circuit with return by the ground. In this circuit the thevenin impedance to source is 10-12 Mohms.
I thinked to use a trasresistante amplifier with output of 2,5 volts or more.
Do you know any IC fitted to it?