Morning all,
I want to multiplex 8 thermocouple signals with the output going to a thermocouple amplifier IC AD595.
As the thermocouple signal is in the mV range I was thinking to filter it with a LPF of 3Hz before the multiplexer.
Is this way fine? or should I be amplifying the signal before the multiplexer stage? The AD595 is expensive at £10 and wondered if a cheap differential amplifer would be ok.
I want to multiplex 8 thermocouple signals with the output going to a thermocouple amplifier IC AD595.
As the thermocouple signal is in the mV range I was thinking to filter it with a LPF of 3Hz before the multiplexer.
Is this way fine? or should I be amplifying the signal before the multiplexer stage? The AD595 is expensive at £10 and wondered if a cheap differential amplifer would be ok.