RATIO's op-amp & resistor ratios

Thread Starter

relicmarks

Joined Oct 13, 2006
355
I have a problem when looking at a schematic and knowing the RATIOS of the resistors networks around OP-amps to know what the Ratio voltage would be

Most techs look at the feedback resistor value and input resistor value and do the RATIO's in there head?

They can tell if the resistor ratios are either 1/4 volt, 1/2 volt, 1 volt , 3/4 volt

What other RATIO's do you guys come across ? are voltage dividers or current dividers RATIO's?

When looking at a schematic, where do u find these ratios mostly?

1.) voltage dividers?
2.) Feedback resistor value & input resistor value?
3.) Summing resistor ratios?
4.) What else please?
 

Thread Starter

relicmarks

Joined Oct 13, 2006
355
Where else do u find RATIOS in circuit analysis or design

I just found them in
1.) voltage dividers or current dividers
2.) summing mixers
3.) Op-amp GAIN resistor ratios

Any others?
 
Top