Apparently, this user prefers to keep an air of mystery about them.
3 How do I condition a signal with an op-amp that needs a negative rail where one is not provided? Oct 5 '11
3 PH differential instrumentation amplifier Oct 21 '11
2 PH interfacing to ADC Oct 19 '11
1 12 bit vs 14/16bit ADC for ph sensor interface Oct 17 '11