Need some help here.. I'm lost... Total Op Amp (or whatever I need..) newbie..
The attached image shows the main power supply to my circuit as being 2 x -/+75VDC sources (voltage on either supply at any time could be from -75V to +75V)
I'm tying those supplies together to create ORD_Vout to feed a 12V SMPS to power the rest of my circuit. And planned to feed the 12V into another SMPS to generate 5V if needed by this op amp or whatever circuit.. I could also use the 5V into a 2.5V series reference if needed by the op amps or whatever.
So basically..
I have 2 ADC's (part of a 2 input digital voltmeter) that are being used to monitor/display the voltage of each main -/+75V supplies.
So I need to generate a 0-5V signal for each of the 2 ADC's where
approx. 2.5V input to the ADC = 0V supply voltage
approx. 5V input to the ADC = +75V supply voltage
approx. 0V input to the ADC = -75V supply voltage
The attached image shows the main power supply to my circuit as being 2 x -/+75VDC sources (voltage on either supply at any time could be from -75V to +75V)
I'm tying those supplies together to create ORD_Vout to feed a 12V SMPS to power the rest of my circuit. And planned to feed the 12V into another SMPS to generate 5V if needed by this op amp or whatever circuit.. I could also use the 5V into a 2.5V series reference if needed by the op amps or whatever.
So basically..
I have 2 ADC's (part of a 2 input digital voltmeter) that are being used to monitor/display the voltage of each main -/+75V supplies.
So I need to generate a 0-5V signal for each of the 2 ADC's where
approx. 2.5V input to the ADC = 0V supply voltage
approx. 5V input to the ADC = +75V supply voltage
approx. 0V input to the ADC = -75V supply voltage
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