0 Members and 3 Guests are viewing this topic.
A voltage of 5.25 V to get a low TC suggsts that this would be for only 1 zener, and not with both zeners in seires in the usual compensation way.
Hello, i have build "prototype" from schematic included in first post in this thread. Simple 3 resistor, opamp and 2dw236...Where is all PSRR? ..
Supply voltage i take from SMSP psu (~22V) especialy for this prupose. Yellow "line" is power supply (50mV per div), blue line is output voltage from opamp - in this case is half of OPA2189. (second half is shorted and grounded). Where is all PSRR? I've add 4700uF/50V cap on input supply.